Standard Horizon Fish Finder HX370S User Manual

HX370S  
VHF/FM Marine  
Handheld Transceiver  
Owner's Manual  
 
RF Exposure Safety Statement  
This Radio has been tested and complies with the Federal Communications  
Commission (FCC) RF exposure limits for Occupational Use/Controlled expo-  
sure environment. In addition, it complies with the following Standards and Guide-  
lines:  
H FCC@96-326, Guidelines for Evaluating the Environmental Effects of Radio-  
Frequency Radiation.  
H FCC OET Bulletin 65 Edition 97-01 (1997) Supplement C, Evaluating Compli-  
ance with FCC Guidelines for Human Exposure to Radio Frequency Electro-  
magnetic Fields.  
H ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to  
Human Exposure to Radio Frequency Electromagnetic Fields, 3kHz to 300  
GHz.  
H ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement  
of Potentially Hazardous Electromagnetic Fields-RF and Microwave.  
WARNING  
This radio generates RF electromagnetic energy during transmit mode. This  
radio is designed for and classified as Occupational Use Only, meaning it  
must be used only during the course of employment by individuals aware of  
the hazards, and the ways to minimize such hazards. This radio is not in-  
tended for use by the General Population in an uncontrolled environment.  
CAUTION  
To ensure that your expose to RF electromagnetic energy is within the FCC  
allowable limits for occupational use, always adhere to the following guidelines:  
SAFETY INFORMATION  
This radio is NOT approved for use by the general population in an uncon-  
trolled environment. This radio is restricted to occupational use, work re-  
lated operations only where the radio operator must have the knowledge to  
control its RF exposure conditions.  
H When transmitting, hold the radio in a vertical position with its microphone  
1 to 2 inches (2.5 to 5 cm) away from your mouth and keep the antenna at  
least 1 inch (2.5cm) away from your head and body.  
H The radio must be used with a maximum operating duty cycle not exceed-  
ing 50 %, in typical Push-to-Talk (Manual PTT or VOX) configurations.  
DO NOT transmit for more than 50 % of total radio use time (50 % duty  
cycle). Transmitting more than 50 % of the time can cause FCC RF expo-  
sure compliance requirements to be exceeded.  
The radio is transmitting when the red LED on the front panel of the radio  
is illuminated. You can cause the radio to transmit by pressing the PTT  
button or by speaking into the microphone if using the optional VC-24  
VOX accessory.  
H Only use the Standard Horizon accessories designed for this product de-  
tailed on Page 6.  
HX370S  
 
Page 1  
Congratulations on your purchase of the HX370S! Whether this is your first  
portable marine VHF transceiver, or if you have other STANDARD HORIZON  
equipment, the STANDARD HORIZON organization is committed to ensur-  
ing your enjoyment of this high-performance transceiver, which should pro-  
vide you with many years of satisfying communications even in the harshest  
of environments. STANDARD HORIZON technical support personnel stand  
behind every product we sell, and we invite you to contact us, should you  
require technical advice or assistance, at (800)767-2450.  
We appreciate your purchase of the HX370S, and encourage you to read  
this manual thoroughly, so as to learn and understand the capabilities of the  
HX370S fully.  
ABOUT VHF MARINE RADIO  
The radio frequencies used in the VHF marine band lie between 156  
and 158 MHz with some shore stations available between 161 and 163  
MHz. The marine VHF band provides communications over distances  
that are essentially “line of sight” (VHF signals do not travel well through  
objects such as buildings, hills or trees). Actual transmission range de-  
pends much more on antenna type, gain and height than on the power  
output of the transmitter. The approximate distance a portable 5W radio  
may communicate is about 5 miles in if there are no obstructions (build-  
ings, hills etc.) restricting line of sight transmission.  
ABOUT LMR CHANNELS  
The HX370S is capable of PC programming 40 LMR (Land Mobile Ra-  
dio) channels by a dealer. The frequency range is 137 to 174MHz which  
may be setup for 25kHz (wide) or 12.5kHz (narrow) channel stepping  
with CTCSS and DCS signaling. Contact your dealer or Standard Horizon  
Product Support (800-767-2450) for further details.  
Page 2  
HX370S  
 
FCC RADIO LICENSE INFORMATION  
Standard Horizon radios comply with the Federal Communication Commis-  
sion (FCC) requirements that regulate the Maritime Radio Service.  
PROHIBITED COMMUNICATIONS  
The FCC prohibits the following communications:  
H False distress or emergency messages:  
H Messages to “any boat” except in emergencies and radio tests;  
H Messages to or from a vessel on land;  
H Transmission while on land;  
H Obscene, indecent, or profane language (potential fine of $10,000).  
STATION LICENSE  
An FCC ship station license is no longer required for any vessel traveling in  
U.S. waters which uses a VHF marine radio, RADAR or EPIRB, and which is  
not required to carry radio equipment. FCC license forms, including applica-  
tions for ship (506) and land station licenses can be downloaded via the  
Internet at www.fcc.gov/formpage.html. To obtain a form from the FCC, call  
(888) 225-5322.  
RADIO CALL SIGN  
Currently the FCC does not require recreational boaters to have a Ship Radio  
Station License. The USCG recommends the boat’s registration number and  
the state to be used.  
CANADIAN SHIP STATION LICENSING  
You may need a license when traveling in Canada. If you do need a license  
contact their nearest field office or regional office or write:  
Industry Canada  
Radio Regulatory Branch  
Attn: DOSP  
300 Slater Street  
Ottawa, Ontario  
Canada, KIA 0C8  
HX370S  
 
Page 3  
FCC/INDUSTRY CANADA INFORMATON  
The following data pertaining to the transceiver is necessary to fill out the  
license application.  
FCC Type Accepted .............................................................. Part 80/Part 90  
Output Power with FNB-83/-V57IS ... 1 W (Low), 2.5 W (Mid), and 5 W (High)  
Emission ............................................................... 16K0G3E (Marine: Wide)  
16K0F3E (LMR: Wide)  
11K0F3E (LMR: Narrow)  
Frequency Range .......................... 156.025 to 157.425 MHz (Marine Band)  
137 to 174 MHz (LMR Band)  
FCC Type Number ..................................................................K6630083220  
Industry Canada Type Approval...........................................511B-30083220  
FCC NOTICE  
Unauthorized changes or modifications to this equipment may void  
compliance with FCC Rules. Any change or modification must be  
approved in writing by STANDARD HORIZON, the Marine Division of  
VERTEX STANDARD.  
NOTICE  
This equipment has been tested and found to comply with the limits for  
a Class B digital device, pursuant to Part 15 of the FCC Rules. These  
limits are designed to provide reasonable protection against harmful  
interference in a residential installation. This equipment generates, uses  
and can radiate radio frequency energy and, if not installed and used in  
accordance with the instructions, may cause harmful interference to  
radio communications. However, there is no guarantee that interference  
will not occur in a particular installation. If this equipment does cause  
harmful interference to radio or television reception, which can be de-  
termined by turning the equipment off and on, the user is encouraged to  
try to correct the interference by one or more of the following measures:  
• Increase the separation between the equipment and receiver.  
• Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected.  
• Consult the dealer or an experienced marine electronics technician  
for help.  
Page 4  
HX370S  
 
1. GENERAL INFORMATION  
1.1 INTRODUCTION  
The HX370S is a submersible, miniature 5-Watt portable two-way VHF ma-  
rine transceiver. The transceiver has all allocated USA, international, or  
Canadian channels. It has an emergency channel 16 which can be immedi-  
ately selected from any channel by pressing the 16/9 key. NOAA weather  
channels can also be accessed immediately by pressing the WX key.  
Besides VHF marine transceiver operation, the HX370S provides LMR (Land  
Mobile Radio) transceiver operation.  
The transceiver includes the following features: Memory Scanning, Program-  
mable Priority Scanning, NOAA Weather Alert, Battery Saver, easy-to-read  
large LCD display, EEPROM memory back-up, Battery Life displayed on  
LCD, and a transmit Time-Out Timer (TOT).  
The transmitter provides a maximum of 5 Watts output, and has the selection  
of 2.5 Watts and 1 Watt to assist the user in ensuring maximum battery life.  
The optional FVP-31 Voice Scrambler can be installed to permit secure voice  
communications with other STANDARD HORIZON radios with the FVP-31  
scramblers installed.  
HX370S  
 
Page 5  
2. ACCESSORIES  
2.1 PACKING LIST  
When the package containing the transceiver is first opened, please check  
it for the following contents:  
HX370S  
FNB-83ꢀ  
Transceiver  
7.2 V, 1400 mAh Ni-MH Battery Pack  
FNB-V57IS7.2 V, 1100 mAh Ni-Cd Battery Pack  
Depends on the transceiver version.  
120 VAC Overnight Charger  
Charger Cradle  
NC-88B  
CD-26  
FBA-25A  
CAT460  
Alkaline Battery Case (Except for IS version)  
Antenna  
E-DC-19A DC Cable with 12 V Cigarette Lighter Plug (Except for IS version)  
CLIP-14 Belt Clip with screw  
Owner’s Manual  
2.2 OPTIONS  
CMP460 Noise-canceling Waterproof Speaker/Microphone  
MH-57A4B Mini Speaker/Microphone (Except for IS version)  
VC-24  
VC-27  
CT-32  
FVP-31  
CD-26  
VOX Headset  
Earpiece/Microphone (Except for IS version)  
Clone Cable  
Voice Scrambler  
Charger Cradle  
FBA-25A Alkaline Battery Case  
(Except for IS version)  
FNB-83  
7.2 V, 1400 mAh Ni-MH  
Battery Pack  
E-DC-19A DC Cable with 12 V Cigarette Lighter Plug  
(Except for IS version)  
NC-88B 120 VAC Overnight Charger  
E-DC-6  
CE68  
CT-111  
DC Cable; plug and wire only  
PPS Software  
Cable SET for CE68  
CAW230  
Radio-to-Ship’s-Antenna Adapter  
Note: Before operating the HX370S for the  
first time, it is recommended that the bat-  
tery be charged.  
Page 6  
HX370S  
 
3. BATTERY  
The FNB-83 and FNB-V57IS (intrinsically Safe Version) are high perfor-  
mance rechargeable battery providing high capacity in a compact package.  
Note: FNB-83 is supplied with the HX370S and the FNB-V57IS is supplied  
with the HX370AS only.  
CAUTION  
To avoid risk of explosion and injury, FNB-83/FNB-V57IS battery pack  
should only be removed, charged or recharged in non-hazardous envi-  
ronments.  
3.1 BATTERY CHARGING  
If the radio has never been used, or its charge is depleted, it may be charged  
by connecting the NC-88 battery charger (see figure 2 on page 8). If 12V DC  
power is available, the optional E-DC-6 or the E-DC-19A DC adapter with  
cigarette plug may be used for charging the battery. The NC-88, E-DC-6 and  
E-DC-19A will charge a completely discharged FNB-83/FNB-V57IS battery  
pack in about 10 hours.  
3.2 BATTERY REMOVAL/INSTALLATION  
1. Turn the transceiver off.  
2. To remove, open the Battery Pack Latch on the bottom of the trans-  
ceiver, then slide the battery downward and out from the transceiver.  
3. To install, insert the battery pack into the battery compartment on the  
back of the transceiver, then close the Battery Pack Latch until it locks in  
place with a “click.”  
Close the  
Battery Pack Latch  
Figure 1  
Important Notice  
To avoid the ingress of water between the transceiver body and battery  
pack/case, close the Battery Pack Latch until it locks in place with a  
“click” while pressing and holding the battery pack/case in to ward the  
top panel (secure the upper edge of the battery pack/case snugly against  
the upper edge of the battery nest).  
HX370S  
 
Page 7  
3.3 USING THE NC-88 BATTERY CHARGER  
1. Install the supplied FNB-83/FNB-V57IS battery pack on the rear of the  
HX370S. Ensure that the transceiver is  
switched off.  
2. Plug the NC-88 Overnight Charger into the  
AC line outlet, then insert the cable plug  
into the jack located on the side panel of  
the CD-26 Charger Cradle.  
3. Insert the transceiver and battery pack into  
the CD-26; the antenna jack should be at  
the left side when viewing the charger from  
the front.  
4. If the transceiver and battery pack are in-  
serted correctly, the Red indicator on the  
CD-26 will glow. A fully-discharged pack will  
be charged completely in 10 hours.  
Figure 2  
Important Notes:  
H The NC-88 is not designed to power the transceiver for operation (re-  
ception or transmission).  
H Do not leave the charger connected to the transceiver for continuous  
periods in excess of 24 hours. Long term overcharging can degrade the  
Ni-MH battery pack and significantly shorten its useful life.  
H If using a charger other than the NC-88/CD-26, or if using a battery pack  
other than the FNB-83/FNB-V57IS, follow the appropriate instructions  
provided with the charger/battery. Contact your Dealer if you have any  
doubts about the appropriateness of the particular charger or battery  
pack you intend to use.  
3.4 FBA-25A Waterproof Alakline Battery Tray  
FBA-25A is a battery case that holds six alkaline batteries and is used with the  
HX370S transceiver.  
When installing batteries, insert the (–) end first, then press in the (+) end so  
the battery snaps into place. Always replace all six batteries at the same  
time, paying attention to the polarity indicated inside the case.  
The FBA-25A must not be used with rechargeable cells. The FBA-  
25A does not contain the thermal and over-current protection  
circuits (provided in the "FNB" series of Ni-MH Battery Packs) required  
when utilizing Ni-Cd and Ni-MH cells.  
Page 8  
HX370S  
 
3.5 BATTERY SAFETY  
Battery packs for your transceiver contain Ni-MH/Ni-Cd batteries. This type  
of battery stores a charge powerful enough to be dangerous if misused or  
abused, especially when removed from the transceiver. Please observe the  
following precautions:  
DO NOT SHORT BATTERY PACK TERMINALS  
Shorting the terminals that power to the transceiver can cause sparks, se-  
vere overheating, burns, and battery cell damage. If the short is of sufficient  
duration, it is possible to melt battery components. Do not place a loose  
battery pack on or near metal surfaces or objects such as paper clips, keys,  
tools, etc. When the battery pack is installed on the transceiver, the termi-  
nals that transfer current to the transceiver are not exposed.  
DO NOT INCINERATE  
Do not dispose of any battery in a fire or incinerator. The heat of fire may  
cause battery cells to explode and/or release dangerous gases.  
Caution  
Never short-circuit the connection terminals on the bat-  
tery or charger !  
CONTAINS NICKEL-METAL-HYDRIDE BATTERY.  
MUST BE RECYCLED OR DISPOSED OF PROP-  
Ni-MH  
ERLY.  
CONTAINS NICKEL-CADMIUM BATTERY.  
MUST BE RECYCLED OR DISPOSED OF  
PROPERLY  
HX370S  
 
Page 9  
4. CONTROLS AND INDICATORS  
NOTE  
This section defines each control of the transceiver. For detailed oper-  
ating instructions, refer to section 5 of this manual. Refer to Figure 3 for  
the location of the following controls, indicators, and connections.  
Figure 3  
Controls and Connectors  
Page 10  
HX370S  
 
4.1 CONTROLS AND CONNECTIONS  
POWER SWITCH/VOLUME CONTROL  
Turns the transceiver on and off, and adjusts the volume.  
MIC/SP JACK  
Accepts the optional CMP460, MH-57A4B speaker microphone or VC-24  
VOX Headset. When this jack is used, the internal speaker is disabled.  
Do not allow the HX370S to become submerged in water while  
the plastic cover over the MIC/SP jack is removed.  
Antenna Connector  
The supplied CAT460 flexible antenna is attached here.  
(
PUSH-TO-TALK PTT SWITCH  
)
Activates transmission.  
(
SQUELCH SQL SWITCH  
)
Sets the point at which random noise on the channel does not activate  
the audio circuits but a received signal does. This point is called the  
Squelch threshold. Further adjustment of the squelch control will de-  
grade the reception of wanted transmissions.  
BUSY/TX INDICATOR  
This indicator glows green when a signal is being received and red when  
transmitting.  
When the Emergency feature is activated, this indicator blinks the inter-  
nationally-recognized Morse Code “S.O.S” message.  
( )  
UP KEY  
Used to select a desired channel. Each press increases the channel  
number. When held down, the channels increase continuously.  
(
DOWN KEY  
)
Used to select a desired channel. Each press decreases the channel  
number. When held down, the channels decrease continuously.  
16/9 KEY  
Immediately recalls channel 16 from any channel location. Holding down  
this key recalls channel 9. The 16/9 key is also used to revert to the  
channel selected before pressing the 16/9 key.  
Example: select Ch68, press 16/9 key (Ch16 appears), press the 16/9  
key again and Ch68 is shown.  
HX370S  
 
Page 11  
WX KEY  
Immediately recalls the last-used NOAA Weather Channel from any chan-  
nel location. Recalls the previously- selected working channel when the  
WX key is pressed again.  
Secondary use: When the 16/9 key is held and the WX key is pressed,  
the radio will change modes between the USA, International, and Cana-  
dian channel bands.  
H/L KEY  
Toggles the transmitter power level between High (5 Watts), Medium  
(2.5 Watts), and Low (1 Watt) of output. Does not operate on “low power  
only” and transmission-inhibit channels.  
When operating on Canadian channel 13, or USA channels 13 or 67,  
pressing this key momentarily toggles the power level from Low power  
to Medium or High power.  
Hold down this key to lock the displayed channel functions (except the  
H/L, PTT, and SQL keys) so that they are not accidentally changed. The  
key lock symbol “  
” will appear, to indicate that the functions are locked.  
Hold down until the key lock symbol “  
dio.  
” disappears to unlock the ra-  
SCAN KEY  
Starts scanning and Priority scanning of programmed channels. When  
scanning, press and hold this key to turn on and off Priority scan (P is  
shown on the left side of the display during Priority scanning).  
PRESET KEY  
Immediately recalls one of up to eight user preset memories for opera-  
tion (shown as 1-8 on the LCD). Pressing this key repeatedly scrolls  
through the preset memory channels.  
MEM KEY  
Press to select a channel for scanning. Press this key again to delete a  
memorized channel. (“MEM” appears on the LCD display during memory  
operation).  
Page 12  
HX370S  
 
4.2 INDICATORS  
Figure 4  
Indicators  
Channel Display  
The operating channel is shown on the LCD in both the transmission and  
reception modes.  
A Indicator  
Signifies ship-to-ship channels in USA or Canadian mode (whose counter-  
part in the International mode is a public correspondence (marine operator)  
channel).  
USA/INTL/CAN Indicator  
Denotes the “band” of operation for the particular channel. “USA” indicates  
the USA band; “CAN” indicates the Canadian band; and “INTL” indicates  
the International band.  
/
/ Indicators  
” indicates High power (5 Watts); “ ” indicates Medium power (2.5 Watts);  
and “ ” is for Low power (1 Watt). “Blank” in this location indicates a re-  
ceive-only channel.  
P Indicator  
Ch16 Priority Scan is activated.  
DW Indicator  
Dual watch is activated.  
SCN Indicator  
Scan is activated.  
TX Indicator  
Appears during transmission.  
HX370S  
 
Page 13  
WX Indicator  
A NOAA weather channel is selected.  
MEM Indicator  
The channel is in the transceiver’s “Scan Memory.”  
Battery Indicator  
When the battery charge is almost depleted, a “  
” icon will appear on the  
display. When this icon appears, it is recommended that you charge the  
battery soon.  
No Icon  
Enough battery power  
Lower battery power  
Nearing depletion  
(Blinking) Prepare to charge the battery  
NOTE: The battery indicator should be used only as a guide in charging the  
FNB-83/FNB-V57IS battery.  
KEY Lock Indicator  
When the “  
” symbol is shown on the LCD, all keys are disabled except  
for the H/L, PTT and SQL keys.  
Page 14  
HX370S  
 
5. OPERATION  
5.1 INITIAL SETUP  
1. Install the belt clip on the transceiver, if desired.  
2. Install the battery pack on the transceiver (see  
figure 1 and section 3.2).  
3. Install the antenna onto the transceiver.  
NOTE  
Water resistance of the transceiver is assured  
only when the battery pack and antenna are  
attached to the transceiver.  
Figure 5  
Antenna Installation  
Installing the Quick Draw Belt Clip  
1. Connect the hanger to the rear of the HX370S, with the notch point-  
ing directly up, using the supplied screw (Figure 6-a).  
Use only the screw included  
with the clip to mount the clip  
to the back of the transceiver!  
2. Clip the Quick Draw Belt Clip to  
your belt (Figure 6-b).  
(a)  
3. To install the HX370S into the  
Quick Draw Belt Clip, align the  
hanger with the Quick Draw Belt  
Clip and slide the HX370S into  
its slot until a click is heard.  
4. To remove the HX370S from the  
Quick Draw Belt Clip, Rotate the  
HX370S 180 degrees, then slide  
belt  
(c)  
the transceiver out from the Quick  
(b)  
Draw Belt Clip (Figure 6-c).  
Figure 6  
HX370S  
 
Page 15  
5.2 RECEPTION  
1. Turn the POWER/VOLUME CONTROL knob clockwise to turn the trans-  
ceiver on.  
[
2. Press the SQL key, then press the key until the  
]
SQL level is 00.  
3. Turn up the POWER/VOLUME CONTROL knob un-  
til the noise or audio from the speaker is at a comfortable level.  
4. Select a channel that has no signal being received (no one is transmit-  
ting on the channel) and where only noise is heard.  
[
]
5. Press the SQL key, then press the key and stop immediately after  
the noise disappears. This condition is known as the “Squelch Thresh-  
squelch  
old.” If the  
received.  
is set to a higher level, weak signals may not be  
[
]
[
6. To change channels, press the or key.  
]
7. The LCD and keypad are illuminated for 5 seconds when any key is  
pressed. The lamp automatically turns off in 5 seconds.  
8. To lock” the channel so that it is not accidentally changed, hold down  
[
the H/L key for about one second. This locks the and buttons  
]
[
]
and all the front panel controls except the H/L, PTT and SQL keys. The  
” symbol will appear on the display to indicate  
that the keypad is locked. Hold down the H/L key for  
about one second to unlock the keys. The “  
bol will disappear from the display.  
” sym-  
LMR (Land Mobile Radio) Channels  
The HX370S is capable of PC programming 40 LMR (Land Mobile Ra-  
dio) channels by a dealer.  
Contact your dealer or Standard Horizon Product Support (800-767-  
2450) for further details.  
Typical display of LMR operation.  
Page 16  
HX370S  
 
5.3 TRANSMISSION  
NOTE  
Never key the transceiver without an antenna connected, as this may  
cause damage to the transceiver.  
1. Perform steps 1 through 7 of the RECEPTION discussion above.  
2. Before transmitting, monitor the channel and make sure it is clear.  
THIS IS AN FCC REQUIREMENT!  
3. For communications over short distances, press the H/L key until “ ” is  
displayed on the LCD. This indicates Low power (approximately 1 Watt).  
NOTE  
Transmitting on 1 Watt prolongs battery life. Low power (1 Watt)  
should be selected whenever possible.  
4. If using Low power is not effective, select Medium power (2.5 Watts) or  
High power (5 Watts) by pressing the H/L key until  
” (Medium power) or “ ” (High power) is dis-  
played.  
5. When receiving a signal, wait until the incoming signal stops before trans-  
mitting. The transceiver cannot transmit and receive simultaneously.  
6. Press the PTT (Push-To-Talk) switch to transmit. The “TX” indicator is  
displayed during transmission.  
7. Speak slowly and clearly into the microphone. Hold the microphone about  
½ to 1 inch away from your mouth.  
8. When the transmission is finished, release the PTT switch.  
5.4 TRANSMIT TIME - OUT TIMER (TOT)  
While the PTT switch is held down, transmission time is limited to 5 minutes.  
This prevents prolonged (unintentional) transmissions. About 10 seconds  
before automatic transmitter shutdown, a warning beep sounds from the  
speaker. The transceiver automatically switches to the receiving mode, even  
if the PTT switch is held down. Before transmitting again, the PTT switch  
must first be released, then pressed again. This Time-Out Timer (TOT) pre-  
vents a continuous transmission that would result from an accidentally stuck  
PTT switch.  
HX370S  
 
Page 17  
5.5 USA, CANADIAN, AND INTERNATIONAL BANDS  
1. To change the operating band (channel set) of the transceiver, hold down  
the 16/9 key and press the WX key. The band will change from USA, to  
International, and to Canadian with each press.  
2. “USA” appears on the LCD for the USA band, “INTL”  
appears for the International band, and “CAN” ap-  
pears for the Canadian band.  
5.6 NOAA WEATHER CHANNELS  
1. To receive a NOAA weather channel, press the WX key. The transceiver  
changes to the weather channel mode. This mode consists of a special  
pre-set memory bank containing the standard NOAA weather channels.  
2. The transceiver will be set to the last-used NOAA weather channel. Press  
[
]
[
]
the or key to change to other weather channels.  
3. To exit from the weather channel mode, press the  
WX key. The transceiver will revert to the channel  
you were using prior to switching to the weather chan-  
nel mode.  
5.6.1 NOAA WEATHER ALERT  
In the event of extreme weather disturbances such as storms and hurri-  
canes, NOAA (National Oceanic and Atmospheric Administration) sends a  
“weather alert” consisting of a 1050 Hz tone, followed by weather reports on  
the weather channels. The transceiver is capable of receiving this alert if the  
following is performed:  
1. Program your area’s weather channels into the transceiver’s scan  
memory. Follow the same procedure as for regular channels under Sec-  
tion 5.7.  
2. Press the SCAN key to start the scan.  
3. The memorized weather channels are scanned along with the regular  
memorized channels. Scanning will not stop, however, on the (continu-  
ous) weather broadcast channels unless the weather alert tone is re-  
ceived.  
4. When an alert is received on a weather channel, scanning stops and the  
transceiver emits a beeping tone that will stay on for 5 minutes or until  
the user presses the WX key to listen to the Weather Alert.  
Page 18  
HX370S  
 
5.6.2 NOAA WEATHER ALERT TESTING  
In the event of a major storm or other appreciable weather condition requir-  
ing vessels at sea or other bodies of water to be notified, the NOAA (Na-  
tional Oceanographic and Atmospheric Administration) broadcasts a 1050  
Hz tone that the HX370S can detect. (Refer to section 5.6.1 “NOAA WEATER  
ALERT” on how to use this feature.) This tone, when detected, will produce  
a loud beep from the radio speaker to signal that a weather alert is being  
broadcast.  
In order to test this system, the NOAA broadcasts the 1050 Hz tone every  
Wednesday, sometime between 11 AM and 1 PM. Any marine VHF radio  
that can detect the weather alert tone, may use this test to verify that this  
feature is functioning properly.  
NOTICE  
Take care not to damage your hearing when operating with the optional  
VC-24 VOX Headset or Earpiece. The NOAA Weather Alert Tone will be  
emitted at full volume, irrespective of the setting of the POWER/VOL-  
UME CONTROL knob.  
HX370S  
 
Page 19  
5.7 SCAN  
This transceiver provides a special “Scanning Memory Bank” which allows  
you to designate certain channels for inclusion in a “loop” which will be  
scanned at high speed. If an incoming signal is detected on one of the chan-  
nels in the scanning loop, the radio will pause on that channel, allowing you  
to listen to the incoming transmission.  
1. Select the desired channel to be included in the scanning loop using the  
[
]
or key.  
[
]
2. Press the MEM key to store the channel into the  
transceiver’s scanning memory. “MEM” will be dis-  
played on the LCD.  
3. Repeat steps 1 and 2 for all the channels to be scanned.  
4. To delete a channel from the transceiver’s scan memory, press the MEM  
key again while the memorized channel is displayed. “MEM” will disap-  
pear from the display.  
5. All channels programmed remain in the transceiver’s scan memory even  
if the power is turned off.  
[
6. Press the SQL key, then press the or key until background noise  
]
[
]
is eliminated.  
7. To start scanning, press the SCAN key. The scan proceeds from the  
lowest to the highest programmed channel number and stops on chan-  
nels when a transmission is received. Scanning will resume when the  
squelch closes after the incoming signal disappears at the end of the  
transmission.  
8. To stop the scan, press the SCAN, 16/9, or WX key.  
Page 20  
HX370S  
 
5.8 PROGRAMMABLE PRIORITY SCAN  
The priority scanning feature allows the radio to scan while also keeping  
watch on a particularly important “priority channel.” The following channels  
can be set as the priority channel: 16, 09, and Preset Channels 1 through 8  
(Preset Channels are described in section 5.14).  
1. To set the priority channel, hold down the 16/9 key and press the MEM  
key. The channel will change from 16 to 09 to Preset 1 to Preset 2 to  
Preset 3 to Preset 4 to Preset 5 to Preset 6 to Preset 7 to Preset 8 with  
each press of the MEM key. The displayed channel will be set as the  
priority channel when the 16/9 key is released.  
2. For priority scanning, hold down the SCAN key during normal scanning.  
Scanning will proceed between the memorized channels and the priority  
channel. The priority channel will be scanned after each programmed  
channel. “P” is shown on the left side of the channel number during pri-  
ority scanning.  
3. As an example of priority scanning, let us say that channels 06, 07, and  
08 are memorized in the transceiver’s scan memory. Priority scanning  
will proceed in the following sequence:  
[
] [  
] [  
CH07  
] [ ] ꢀ  
Priority Channel  
CH06  
[
Priority Channel  
] [  
] [ ] [  
]
CH06 Priority Channel ……  
CH08  
Priority Channel  
4. Even when the transceiver stops and listens to the signal of a programmed  
channel, the transceiver will “dual watch” between this channel and the  
priority channel. Therefore, your priority watching of the designated chan-  
nel is not compromised when the scanner has paused on an active channel.  
5.9 DUAL WATCH  
The Dual Watch feature allows the radio to watch for a transmission on the  
priority channel and another selected Marine channel until a signal is re-  
ceived. The priority channel is determined per the discussion in section 5.8  
“PROGRAMMABLE PRIORITY SCAN” as described previously.  
1. To start the Dual Watch feature, select a channel to be dual watched  
with the priority channel and press and hold in the  
SCAN key. The radio checks the priority channel for  
voice traffic every one second. A small “DW” icon  
will be shown blinking on the left of the display dur-  
ing scanning.  
2. To cancel the Dual Watch feature, press the SCAN key.  
HX370S  
 
Page 21  
5.10 EMERGENCY (CHANNEL 16 USE)  
Channel 16 is known as the Hail and Distress Channel. An emergency may  
be defined as a threat to life or property. In such instances, be sure the  
transceiver is on and set to CHANNEL 16. Then use the following proce-  
dure:  
1. Press the microphone push-to-talk switch and say Mayday, Mayday,  
Mayday. This is  
,
,
(your vessel's name).  
2. Then repeat once: Mayday,  
(your vessel's name).  
3. Now report your position in latitude/longitude, or by giving a true or mag-  
netic bearing (state which) to a well-known landmark such as a naviga-  
tion aid or geographic feature such as an island or harbor entry.  
4. Explain the nature of your distress (sinking, collision, aground, fire, heart  
attack, life-threatening injury, etc.).  
5. State the kind of assistance your desire (pumps, medical aid, etc.).  
6. Report the number of persons aboard and condition of any injured.  
7. Estimate the present seaworthiness and condition of your vessel.  
8. Give your vessel’s description: length, design (power or sail), color and  
other distinguishing marks. The total transmission should not exceed 1  
minute.  
9. End the message by saying OVER. Release the microphone button  
and listen.  
10. If there is no answer, repeat the above procedure. If there is still no  
response, try another channel.  
11. To recall the previously-selected channel, press the 16/9 key again.  
5.11 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9)  
Channel 16 may be used for initial contact (hailing) with another vessel.  
However, its most important use is for emergency messages. This channel  
must be monitored at all times except when actually using another channel.  
It is monitored by the U.S. and Canadian Coast Guards and by other ves-  
sels. Use of channel 16 for hailing must be limited to initial contact only.  
Calling should not exceed 30 seconds, but may be repeated 3 times at 2-  
minute intervals. In areas of heavy radio traffic, congestion on channel 16  
resulting from its use as a hailing channel can be reduced significantly in  
U.S. waters by using Channel 9 as the initial contact (hailing) channel for  
non-emergency communications. Here, also, calling time should not exceed  
30 seconds but may be repeated 3 times at 2-minute intervals.  
Page 22  
HX370S  
 
Prior to making contact with another vessel, refer to the channel charts in  
this manual, and select an appropriate channel for communications after  
initial contact. For example, Channels 68 and 69 of the U.S. VHF Charts are  
some of the channels available to non-commercial (recreational) boaters.  
Monitor your desired channel in advance to make sure you will not be inter-  
rupting other traffic, and then go back to either channel 16 or 9 for your initial  
contact.  
When the hailing channel (16 or 9) is clear, state the name of the other  
vessel you wish to call and then this isfollowed by the name of your  
vessel and your Station License (Call Sign). When the other vessel returns  
your call, immediately request another channel by saying go to,the num-  
ber of the other channel, and "over." Then switch to the new channel. When  
the new channel is not busy, call the other vessel.  
After a transmission, say over,and release the microphone's push-to-talk  
(PTT) switch. When all communication with the other vessel is completed,  
end the last transmission by stating your Call Sign and the word out.Note  
that it is not necessary to state your Call Sign with each transmission, only  
at the beginning and end of the contact.  
Remember to return to Channel 16 when not using another channel. Some  
radios automatically monitor Channel 16 even when set to other channels  
or when scanning; see your Owner's Manual.  
5.12 OPERATING ON CHANNEL 13  
Channel 13 is used at docks, bridges and for maneuvering in port. Mes-  
sages on this channel must concern navigation only, such as meeting and  
passing in restricted waters. In emergencies and when approaching blind  
river bends, High power is allowed. Pressing the H/L key will change the  
(
)
(
)
; if pressed again, 2.5 Watts  
power output from 1 Watt  
(
to 5 Watts  
)
will be selected. When the PTT switch is released, the transceiver will  
revert to Low power. Press the H/L key again if you need High power on a  
subsequent transmission.  
5.13 OPERATING ON CHANNEL 67  
When channel 67 is used for navigational bridge-to-bridge traffic between  
ships, High or Medium power may be used temporarily (in the USA band) by  
pressing the H/L key. When the PTT switch released, the transceiver will  
revert to low power.  
HX370S  
 
Page 23  
5.14 PRESET CHANNELS (1 ~ 8): INSTANT ACCESS  
Eight user-assigned channels can be programmed for instant access.  
5.14.1 Programming  
1. Hold down the PRESET key, and press the [] or [] key (repeatedly, if  
necessary) until the desired channel number (from among the regular  
operating channels) is displayed.  
2. With the desired channel number displayed, release the PRESET key.  
The “1” notation will appear on the LCD display for 1 second, indicating  
that the displayed channel is now saved in the Pre-  
set Channel “1” position. Then the preset channel  
number will disappear and the display comes back  
to the normal channel display.  
Repeat steps 1 and 2 to program the desired channels into Preset Channels  
1 ~ 8.  
[
To delete a Preset Channel, hold down the PRESET key and press the ꢁ  
]
[
or key until the Preset Channel number to be deleted is displayed, then  
]
release the PRESET key.  
5.14.2 Operation  
Pressing the PRESET key toggles between Preset Channel 1, 2, 3, 4, 5, 6,  
7, 8 and the last selected “regular” channel. Preset Channel 1 is repre-  
sented by “1” to the right of the channel number on the LCD for 1 second,  
and channel 2 is represented by “2,” and so forth. Then the preset channel  
numberr will disappear and the display comes back to the normal channel  
display.  
Page 24  
HX370S  
 
5.15 SIMPLEX/DUPLEX CHANNEL USE  
All channels are factory-programmed in accordance with FCC (USA), In-  
dustry Canada and International regulations. The mode of operation cannot  
be altered from simplex to duplex or vice-versa. Simplex or duplex mode is  
automatically activated, depending on the channel and whether the USA,  
International or Canadian operating band is selected.  
5.16 ENABLING S.O.S STROBE OPERATION  
The S.O.S. STROBE feature utilizes the high-intensity strobe LED on the  
front of the HX370S as a visual distress beacon. When enabled, the LED  
blinks the internationally-recognized Morse Code “S.O.S.” message  
(
– – –  
)
• • • at a rate of 5 words per minute. This can be very useful in  
• • •  
summoning help from rescuers who may not be able to communicate with  
you via radio.  
1. Hold down the MEM key while turning the radio on to activate the emer-  
gency S.O.S. Strobe. Once the radio comes on, the BUSY/TX LED will  
flash the Morse Code S.O.S. message repeatedly.  
2. The S.O.S strobe will not operate if the squelch is turned off (Squelch  
must be set to threshold), the radio is receiving a transmission or trans-  
mitting.  
3. To disable the S.O.S. strobe function, turn the radio off and back on  
again.  
HX370S  
 
Page 25  
5.17 VOICE SCRAMBLER UNIT  
The optional FVP-31 Voice Scrambler Unit permits secure voice communica-  
tions with stations within your network, which prevents others from listening  
using normal communication equipment.  
To activate the Voice Scrambler:  
1. Turn the radio off.  
2. Hold down the SQL key, then turn on the transceiver while still holding  
down the SQL key to enter the Setup Mode.  
3. Press the SQL key momentarily to select the Menu item (SCr).  
[
4. Press the or key momentarily select the scramble code (SC1,  
]
[
]
SC2, SC3, or SC4).  
5. When you have completed your selection, press the SQL key to save  
the new setting, and then press the PTT switch to exit to normal operation.  
6. To disable the Voice Scrambler, select “oFF” in step 4 above.  
Installation of the FVP-31  
1. Make sure that the transceiver is off. Remove the hard or soft case, if  
used. Remove the battery pack.  
2. Locate the connector for the FVP-31 under the seal in the battery  
compartment on the back of the transceiver, just peel off the seal.  
3. Align the connector on the FVP-31 with the transceiver’s connector  
and gently press the unit into place.  
4. Place the Sponge Sheet (supplied with the HX370S) on the FVP-31.  
5. Affix the new (supplied with the FVP-31) seal, and replace the bat-  
tery. Installation is now complete.  
«
«
«
Peel off the Seal  
Locate Connector  
Sponge Sheet  
Affix the new Seal  
Figure 5  
Page 26  
HX370S  
 
5.18 SETUP MODE  
The HX370S’s Setup Mode allows a number of the HX370S operating pa-  
rameters to be custom-configured for your operating requirements.  
The Setup Mode is easy to activate and set, using the following procedure:  
1. Turn the radio off.  
2. Hold down the SQL key, then turn on the transceiver while still holding  
down the SQL key.  
3. “SEt” will appear on the display, indicating that the Setup Mode has been  
activated.  
4. Press the SQL key to select the Menu item to be adjusted (see below).  
[
]
[
]
5. Press the or key select the status or value of the Menu item.  
6. After completing your adjustment, press the SQL key to save the new  
setting, and then press the PTT switch to exit to normal operation.  
«
«
Voice Scrambler  
Scan Display  
Scan Lamp  
Key Beep  
Channel Frequency  
“SQL” Key  
¬
Channel Name  
«
Lamp Mode  
DW Display  
HX370S  
 
Page 27  
(
)
5.18.1 bEP KEY BEEP  
Function: Enable/Disable the Keypad beeper.  
Available Values: ON/OFF  
Default: ON  
(
)
5.18.2 CHF CHANNEL FREQUENCY  
Function: Enable/Disables the Channel Frequency display.  
Available Values: ON/OFF  
Default: OFF  
(
)
5.18.3 CHn CHANNEL NAME  
Function: Changes the channel name shown on the display.  
1. Select the channel on which you wish to change the name before recall-  
ing this Menu item.  
2. Turn the radio off.  
3. Hold down the SQL key, then turn on the transceiver while still holding  
down the SQL key.  
4. “SEt” will appear on the display, indicating that the Setup Mode has been  
activated.  
5. Press the SQL key to select this Menu item “CHn.”  
[
]
[
]
6. Press the or key to select the first character  
(letter, number, or symbol) in the name you wish to  
change, then press the MEM key to move to the next  
character.  
7. Repeat step 6 as many times as necessary to complete the name tag  
(up to 12 characters).  
8. After completing your adjustment, press the SQL key then PTT switch to  
save the new setting and exit to normal operation.  
(
)
5.18.4 dUL DW DISPLAY  
Function: Selects the Dual Watch scanning display mode.  
Available Values: Normal/Special  
Default: Special  
When “Special” is selected, channel number which is the LCD shows re-  
ceived channel.  
Page 28  
HX370S  
 
(
)
5.18.5 LP LAMP MODE  
Function: Select the LCD/Keypad Lamp mode.  
Available Values: KEY/Cnt (Continue)/OFF  
Default: KEY  
KEY:  
Illuminates the LCD/Keypad for 5 seconds when any key is  
pressed.  
Cnt (Continue): Illuminates the LCD/Keypad continuously.  
oFF: Disables the LCD/Keypad illumination.  
Key  
Continue  
Off  
(
)
5.18.6 SnL SCAN LAMP  
Function: Enable/Disable the Scan lamp while scanning is paused.  
Available Values: ON/OFF  
Default: ON  
(
)
5.18.7 SCn SCAN DISPLAY  
Function: Select the display mode while scanning.  
Available Values: nor (Normal)/SPL (Special)  
Default: nor (Normal)  
nor (Normal): The channel number changes when scanning.  
SPL (Special): The channel number only changes when the radio receives  
a transmission. This lets you see the last channel on which  
someone called.  
Normal  
Special  
(
5.18.8 SCr VOICE SCRAMBLER) [  
]
Requires optional FVP-31  
Function: Enable/Disable the Voice Scrambler.  
Available Values: OFF/SC0/SC1/SC2/SC3  
Default: OFF  
Off  
Code “SC1”  
Code “SC2”  
Code “SC3”  
HX370S  
 
Page 29  
5.19 CLONING  
The HX370S includes a convenient “Clone” feature, which allows the memory  
and configuration data from one transceiver to be transferred to another  
HX370S.  
1. Turn both radios off.  
2. Connect the (optional) CT-32 Clone Cable between the MIC/SP jacks of  
the two transceivers.  
3. Hold down the PRESET key and then turn on the  
transceiver. Do this for both transceivers (the order  
of switching the radios on does not matter); “CLn”  
will appear on the display on both transceivers.  
4. On the Destination transceiver, press the PRESET  
key (“Cr” will appear on the LCD).  
5. Press the 16/9 key on the Source transceiver; “CS”  
will appear on the Source radio, and the data will  
now be transferred.  
6. If there is a problem during the cloning process, “CEr”  
will displayed. Check your cable connections and  
battery voltage, and try again.  
7. If the data transfer is successful, the Destination transceiver will return  
to normal operation; Turn both transceivers off and disconnect the Clone  
cable. You can then turn the transceivers back on, and begin normal  
operation.  
Page 30  
HX370S  
 
6. MAINTENANCE  
To receive warranty service, the purchaser must deliver the Product, trans-  
portation and insurance prepaid, to STANDARD HORIZON Marine Repair  
Department (a division of VERTEX STANDARD), 10900 Walker Street Cy-  
press, CA 90630. Include proof of purchase indicating model. serial num-  
ber, and date of purchase. STANDARD HORIZON will return the Product to  
the purchaser freight prepaid. For general troubleshooting, refer to this  
Troubleshooting Chart.  
TROUBLESHOOTING CHART  
PROBABLE  
CAUSE  
SYMPTOM  
REMEDY  
The SCAN key N o c h a n n e l s Use the MEM key to enter  
does not start the memorized.  
scan.  
desired channels into the  
transceiver’s memory.  
Squelch is not ad- Adjust the squelch to thresh-  
justed.  
old or to the point where noise  
just disappears. Further ad-  
justment of the squelch con-  
trol may eliminate incoming  
signals.  
The USA/INTL/ Proper operation HOLD down the 16/9 key and  
CAN modes do not not followed.  
function.  
press the WX key.  
Press and holding Low battery.  
the SQL key does  
not eliminate back-  
Charge battery. Refer to sec-  
tion 3 of this manual.  
ground noise.  
Cannot change Key Lock is on.  
any function.  
Turn Key Lock off. Refer to  
.
section 4.1.  
Key Lock does not Proper operation Hold down the H/L key for 1  
function. not followed. second.  
Indicator does not Defective battery Contact your Standard  
light when charg- FNB-83/-V57IS or Horizon dealer.  
ing a battery.  
corroded contacts  
o n b a tte ry o r  
charger.  
HX370S  
Page 31  
 
7. PRODUCT SUPPORT INQUIRIES  
If you have any questions or comments regarding the use of the HX370S,  
you can visit the STANDARD HORIZON Web site (www.standardhorizon.com),  
send an E-mail [email protected], or contact the Product Support  
team at (800)767-2450 M-F 7:00-5:00PST.  
8. CHANNEL ASSIGNMENTS  
Tables on the following columns list the VHF Marine Channel assignments  
for U.S.A. and International use. Below are listed some data about the charts.  
1. VTS. Where indicated, these channels are part of the U.S. Coast Guard’s  
Vessel Traffic System.  
2. Alpha channel numbers, that is, channel numbers followed by the letter  
A (such as Channel 07A) are simplex channels on the U.S.A. or Cana-  
dian channel assignments whose counterparts in the International as-  
signments are duplex channels. International channels do not use “Al-  
pha” numbers. If you call the Coast Guard on Channel 16, they will some-  
times ask you to “go to channel 22 Alpha.” This is a channel assigned  
to U.S.A, and Canadian Coast Guards for handling distress and other  
calls. If your radio is set for International operation you will go to Chan-  
nel 22 instead of 22A, and will not be able to communicate with the  
Coast Guard. To use Channel 22A, your radio must be set for USA or  
Canada operation, usually by a U/I/C (USA/International/Canada) con-  
trol or combination of controls. Channel 22 (without an “A” is an Interna-  
tional duplex channel for port operations. Some radios indicate an “A”  
adjacent to the alpha channels on the display; on others “Alpha” is not  
indicated but the proper channel is selected based on the U/I/C setting.  
3. Bridge-to-Bridge channels (for example, Channel 13) are for use by bridge  
operators on intercoastal waterways and rivers. It is also used by marine  
vessels in the vicinity of these bridges for navigation and for communi-  
cating with the bridge operators. Note that a limit of 1 Watt is specified  
for these channels. See page 23 for additional information.  
4. The S/D column on the chart indicates either S (simplex) or D (duplex).  
Simplex means transmitting and receiving on the same frequency. Only  
one party at a time can talk, unlike a telephone. Be sure to say “over”  
and release your microphone push-to-talk switch at the end of each trans-  
mission. Duplex operation involves the use of one frequency for trans-  
mitting and a separate frequency for receiving. On channels specified  
Page 32  
HX370S  
 
as duplex on the charts, correct mode of operation is established auto-  
matically by your radio when you select a channel; you cannot change  
the mode. And you still must release the push-to-talk switch after each  
transmission in order to listen to the radio.  
5. Channels normally used by recreational boaters are those that include  
the term “non-commercial” in the Channel Use column of the chart. Some  
of these are shared with other users and some are used only in certain  
geographic regions.  
6. Marine vessels equipped with VHF radios are required to monitor  
Channel 16.  
VHF Marine Channel  
VHF MARINE CHANNEL CHART  
CH  
01  
U
C
I
S/D  
D
TX  
156.050 160.650 Public Correspondence Marine Operator  
156.050 Port Operation and Commercial. VTS in selected areas  
156.100 160.700 Public Correspondence Marine Operator  
RX  
CHANNEL USE  
(
)
X
X
01A  
02  
X
S
(
)
)
X
X
X
X
D
(
03  
D
156.150 160.750 Public Correspondence Marine Operator  
156.150 US Government only, Coast Guard  
03A  
04  
X
S
(
)
X
D
156.200 160.800 Public Correspondence Marine Operator ,  
Port operation, ship movement  
04A  
05  
X
S
D
156.200  
Pacific coast: Coast Guard, East Coast:  
Commercial fishing  
(
)
X
156.250 160.850 Public Correspondence Marine Operator ,  
Port operation, ship movement  
05A  
06  
X
X
X
X
S
S
D
156.250  
156.300  
Port operation. VTS in Seattle  
Inter-ship Sefety  
X
X
(
)
07  
156.350 160.950 Public Correspondence Marine Operator ,  
Port operation, ship movement  
07A  
08  
X
X
X
X
X
X
S
S
S
156.350  
156.400  
156.450  
Commercial  
(
Commercial Inter-ship only  
)
X
X
09  
Boater Calling channel, Commercial & Non-commercial  
(
)
Recreational  
Commercial  
10  
11  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
S
S
S
S
S
S
S
S
S
D
S
D
S
S
156.500  
156.550  
156.600  
156.650  
156.700  
Commercial. VTS in selected areas.  
Port operation. VTS in selected areas.  
(
Inter-ship Navigation Safety Bridge-to-bridge  
12  
13  
)
14  
Port operation. VTS in selected areas.  
)
(
- - - 156.750 Environmental Receive only  
15  
15  
(
Commercial, non-commercial, ship movement 1 W  
)
X
X
X
X
X
X
X
156.750  
156.800  
156.850  
16  
X
X
International Distress, Safety and Calling  
)
(
State Controlled 1 W  
17  
18  
156.900 161.500 Port operation, ship movement  
156.900 Commercial  
156.950 161.550 Port operation, ship movement  
18A  
19  
X
X
X
X
X
19A  
19A  
156.950  
156.950  
US: Commercial  
Coast Guard  
HX370S  
 
Page 33  
VHF MARINE CHANNEL CHART  
RX CHANNEL USE  
157.000 161.600 Canadian Coast Guard Only,  
International: port operations and shipment  
Port operation  
157.050 161.650 Port operation, ship movement  
CH  
20  
U
C
I
S/D  
D
TX  
X
X
X
20A  
21  
X
X
X
S
D
S
D
S
157.000  
X
X
21A  
22  
X
157.050 U.S. Government Only, Canadian Coast Guard  
157.100 161.700 Port operation, ship movement  
22A  
X
X
157.100  
US and Canadian Coast Guard Liaison and Maritime  
Safety Information Broadcasts announced on channel 16  
(
)
23  
23A  
24  
X
D
S
D
D
D
D
D
D
D
157.150 161.750 Public Correspondence Marine Operator  
157.150 U.S. Government Only  
157.200 161.800 Public Correspondence Marine Operator  
X
X
X
X
X
X
(
)
)
)
)
)
)
X
X
X
X
X
X
X
X
X
X
X
X
X
(
25  
157.250 161.850 Public Correspondence Marine Operator  
(
157.300 161.900 Public Correspondence Marine Operator  
(
157.350 161.950 Public Correspondence Marine Operator  
26  
27  
(
157.400 162.000 Public Correspondence Marine Operator  
(
156.025 160.625 Public Correspondence Marine Operator  
28  
60  
61  
(
)
156.075 160.675 Public Correspondence Marine Operator ,  
Port operation, ship movement  
61A  
62  
X
X
S
D
S
D
156.075  
U.S. Government Only, Canadian Coast Guard-  
Pacific Coast, Commercial Fishing-East Coast  
(
)
X
156.125 160.725 Public Correspondence Marine Operator ,  
Port operation, ship movement  
62A  
63  
X
156.125  
Public Coast: Coast Guard;  
East Coast: commercial fishing only  
(
)
X
X
X
X
X
156.175 160.775 Public Correspondence Marine Operator ,  
Port operation, ship movement  
63A  
64  
X
X
X
S
D
156.175  
Port Operation and Commercial. VTS in selected areas.  
(
)
X
156.225 160.825 Public Correspondence Marine Operator ,  
Port operation, ship movement  
64A  
X
S
156.225  
U.S. Government Only, Canadian Commercial Fishing  
(
)
65  
D
156.275 160.875 Public Correspondence Marine Operator ,  
Port operation, ship movement  
65A  
66  
X
S
D
156.275  
Port Opeations  
(
)
156.325 160.925 Public Correspondence Marine Operator ,  
Port operation, ship movement  
66A  
67  
X
X
X
X
S
S
156.325  
156.375  
Port Operations  
US: Commercial. Used for Bridge-to-bridge communi-  
cations in lower Mississippi River. Inter-ship only,  
Canada: Commercial fishing, S&R  
(
Non-commercial Recreational  
(
US: Non-commercial Recreational ,  
Canada: Commercial fishing only,  
)
68  
69  
X
X
X
X
X
X
S
S
156.425  
156.475  
)
International: Inter-ship, Port opertions and Ship movement  
(
Digital selective calling voice communications not allowed  
)
70  
71  
X
X
X
X
X
X
S
S
156.525  
156.575  
(
)
US, Canada: Non-commercial Recreational ,  
International: Port opertions and Ship movement  
(
Non-commercial Inter-ship only  
)
72  
73  
X
X
X
X
X
X
S
S
156.625  
156.675  
US: Port Operations, Canada: Commercial fishing only,  
International: Inter-ship, Port opertions and Ship movement  
Page 34  
HX370S  
 
VHF MARINE CHANNEL CHART  
CH  
74  
U
C
I
S/D  
S
TX  
RX  
CHANNEL USE  
US: Port Operations, Canada: Commercial fishing only,  
International: Inter-ship, Port opertions and Ship movement  
X
X
X
156.725  
(
) (1W)  
) (1W)  
) (1W)  
)
75  
76  
X
X
S
S
156.775  
156.825  
Port Operations Inter-ship only  
(
Port Operations Inter-ship only  
(
77  
77  
78  
X
X
S
S
D
156.875  
156.875  
Port Operations Inter-ship only  
(
Port Operations Inter-ship only  
X
X
(
)
156.925 161.525 Public Correspondence Marine Operator ,  
Port operation, ship-movement  
(
)
78A  
79  
X
X
X
X
X
X
X
X
S
D
S
D
S
D
S
156.925  
156.975 161.575 Port operation and Ship movement  
156.975 Commercial  
157.025 161.625 Port operation, ship movement  
157.025 Commercial  
157.075 161.675 Port operation, ship movement  
Non-commercial Recreational  
X
X
X
79A  
80  
80A  
81  
81A  
157.075  
U.S. Government Only -  
Environmental protection operations.  
(
)
82  
X
X
D
157.125 161.725 Public Correspondence Marine Operator ,  
Port operation, ship movement  
82A  
83  
X
X
X
X
X
X
X
X
X
X
X
S
D
S
D
D
D
D
D
D
S
D
D
D
D
D
D
D
D
D
D
157.125  
157.175 161.775 Canadian Coast Guard Only  
157.175 U.S. Government Only, Canadian Coast Guard Only  
157.175 161.775 Public Correspondence Marine Operator  
U.S. Government Only, Canadian Coast Guard Only  
83A  
83  
(
)
)
)
)
)
X
X
X
X
X
X
(
157.225 161.825 Public Correspondence Marine Operator  
84  
85  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
(
157.275 161.875 Public Correspondence Marine Operator  
(
86  
157.325 161.925 Public Correspondence Marine Operator  
(
157.375 161.975 Public Correspondence Marine Operator  
87  
88  
(
)
157.425 162.025 Public Correspondence ship-to-coast  
157.425 Commercial, Inter-ship Only  
- - - 162.550 Weather receive only  
88A  
WX01  
WX02  
WX03  
WX04  
WX05  
WX06  
WX07  
WX08  
WX09  
WX10  
(
)
)
)
)
)
)
)
)
)
)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
(
- - - 162.400 Weather receive only  
(
- - - 162.475 Weather receive only  
(
- - - 162.425 Weather receive only  
(
- - - 162.450 Weather receive only  
(
- - - 162.500 Weather receive only  
(
- - - 162.525 Weather receive only  
(
- - - 161.650 Weather receive only  
(
- - - 161.775 Weather receive only  
(
- - - 163.275 Weather receive only  
The above BOLD channels are not for use of the general public in U.S. waters,  
unless proper authorization is given.  
HX370S  
 
Page 35  
Points of communica-  
tion (Intership and be-  
tween coast and ship  
unless otherwise indi-  
cated)  
Points of communica-  
tion (Intership and be-  
tween coast and ship  
unless otherwise indi-  
cated)  
Carrier frequency  
Carrier frequency  
(
)
(
)
MHz  
MHz  
Channel  
designator  
Channel  
designator  
Ship  
Coast  
Ship  
Coast  
transmit transmit  
transmit transmit  
Port Operations  
Distress, Safety and Calling  
156.800 156.800 EPRIB  
Intership Safety  
01A1  
63A1  
05A2  
65A  
66A  
123  
156.050 156.050  
156.175 156.175  
156.250 156.250  
156.275 156.275  
156.325 156.325  
156.600 156.600  
156.675 156.675  
156.700 156.700  
156.725 156.725  
156.875  
16  
06  
156.300 ........ a. Intership, or b.  
For SAR: Ship and  
aircraft for the U.S.  
Coast Guard.  
73  
143  
74  
Environmental  
........ 156.750 Coast to ship only.  
Maritime Control  
1513  
774  
Intership only.  
Intership only.  
20A12 157.000  
Navigational (Bridge-to-Bridge)5  
179,10  
156.850 156.850  
136  
677  
156.650 156.650  
156.375 156.375  
Liaison, U.S. Coast Guard  
22A11 157.100 157.100 Ship, aircraft, and  
coast stations of  
the U.S. Coast  
Guard and at Lake  
Mead, Nev., ship  
and coast stations  
of the National  
Park Service, U.S.  
Department of the  
Interior.  
Commercial  
01A1  
63A1  
07A  
677  
08  
09  
156.050 156.050  
156.175 156.175  
156.350 156.350  
156.375  
156.400 ........ Do.  
156.450 156.450  
156.500 156.500  
156.550 156.550  
156.900 156.900  
156.950 156.950  
156.975 156.975  
Intership only.  
10  
113  
18A  
19A  
79A  
80A  
88A8  
7214  
Public Correspondence  
(Marine Operator) channels  
24  
84  
25  
85  
26  
86  
27  
87  
28  
888  
157.200 161.800  
157.225 161.825  
157.250 161.850  
157.275 161.875  
157.300 161.900  
157.325 161.925  
157.350 161.950  
157.375 161.975  
157.400 162.000  
157.425 162.025  
157.025 157.025  
157.425 ........ Intership only.  
156.625 ........ Internship only.  
Digital Selective Calling  
156.525 156.525  
7015  
Noncommercial  
6817  
0916  
69  
71  
72  
78A  
79A  
80A  
6714  
156.425 156.425  
156.450 156.450  
156.475 156.475  
156.575 156.575  
156.625 ........ Intership only.  
156.925 156.925  
156.975 156.975 Great Lakes only.  
157.025 157.025 Do.  
156.375 ....... Internship only.  
Page 36  
HX370S  
 
1. 156.050 MHz and 156.175 MHz are available for port operations and commercial  
communications purposes when used only within the U.S. Coast Guard desig-  
nated Vessel Traffic Services (VTS) area of New Orleans, on the lower Missis-  
sippi River from the various pass entrances in the Gulf of Mexico to Devil’s Swamp  
Light at River Mile 242.4 above head of passes near Baton Rouge.  
2. 156.250 MHz is available for port operations communications use only within the  
U.S. Coast Guard designated VTS radio protection areas of New Orleans and  
Houston described in Sec. 80.383. 156.250 MHz is available for intership port  
operations communications used only within the area of Los Angeles and Long  
Beach harbors, within a 25- nautical mile radius of Point Fermin, California.  
3. 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast  
Guard designated port areas only for VTS communications and in the Great Lakes  
available primarily for communications relating to the movement of ships in sec-  
tors designated by the St. Lawrence Seaway Development Corporation or the  
U.S. Coast Guard. The use of these frequencies outside VTS and ship move-  
ment sector protected areas is permitted provided they cause no interference to  
VTS and ship movement communications in thier respective designated sectors.  
4. Use of 156.875 MHz is limited to communications with pilots regarding the move-  
ment and docking of ships. Normal output power must not exceed 1 watt.  
5. 156.375 MHz and 156.650 MHz are available primarily for intership navigational  
communications. These frequencies are available between coast and ship on a  
secondary basis when used on or in the vicinity of locks or drawbridges. Normal  
output power must not exceed 1 watt. Maximum output power must not exceed  
10 watts for coast stations or 25 watts for ship stations.  
6. On the Great Lakes, in addition to bridge-to-bridge communications, 156.650  
MHz is available for vessel control purposes in established vessel traffic sys-  
tems. 156.650 MHz is not available for use in the Mississippi River from South  
Pass Lighted Whistle Buoy “2” and Southwest Pass entrance Midchannel Lighted  
Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge. Addition-  
ally it is not available for use in the Mississippi River-Gulf Outlet, the Mississippi  
River-Gulf Outlet Canal, and the Inner Harbor Navigational Canal, except to aid  
the transition from these areas.  
7. Use of 156.375 MHz is available for navigational communications only in the  
Mississippi River from South Pass Lighted Whistle Buoy “2” and Southwest Pass  
entrance Mid-channel Lighted Whistle Buoy to mile 242.4 above head of Passes  
near Baton Rouge, and in addition over the full length of the Mississippi River-  
Gulf Outlet Canal from entrance to its junction with the Inner Harbor Navigation  
Canal, and over the ull length of the Inner Harbor Navigation Canal from its junc-  
tion with the Mississippi River to its entry to Lake Pontchartrain at the New Seabrook  
vehicular bridge.  
HX370S  
 
Page 37  
8. Within 120 km (75 miles) of the United States/Canada border, in the area of the  
Puget Sound and the Strait of Juan de Fuca and its approaches, 157.425 MHz is  
half of the duplex pair designated as Channel 88. In this area, Channel 88 is  
available to ship stations for communications with public coast stations only. More  
than 120 km (75 miles) from the United States/Canada border in the area of the  
Puget Sound and the Strait of Juan de Fuca, its approaches, the Great Lakes,  
and the St. Lawrence Seaway, 157.425 MHz is available for intership and com-  
mercial communications. Outside Puget Sound area and its approaches and the  
Great Lakes, 157.425 MHz is also available for communications between com-  
mercial fishing vessels and associated aircraft while engaged in commercial fish-  
ing activities.  
9. When the frequency 156.850 MHz is authorized, it may be used additionally for  
search and rescue training exercises conducted by state or local governments.  
10. The frequency 156.850 MHz is additionally available to coast stations on the  
Great Lakes for transmission of scheduled Coded Marine Weather Forecasts  
(MAFOR), Great Lakes Weather Broadcast (LAWEB) and scheduled Notices to  
Mariners or Bulletins. F3C and J3C emissions are permitted. Coast Stations on  
the Great Lakes must cease weather broadcasts which cause interference to  
stations operating on 156.800 MHz until the interference problem is resolved.  
11. The frequency 157.100 MHz is authorized for search and rescue training exer-  
cises by state or local government in conjunction with U.S. Coast Guard stations.  
Prior U.S. Coast Guard approval is required. Use must cease immediately on  
U.S. Coast Guard request.  
12. The duplex pair for channel 20 (157.000/161.600 MHz) may be used for ship to  
coast station communications.  
13. Available for assignment to coast stations, the use of which is in accord with an  
agreed program, for the broadcast of information to ship stations concerning the  
environmental conditions in which vessels operate, i.e., weather; sea conditions;  
time signals; notices to mariners; and hazards to navigation.  
14. Available only in the Puget Sound and the Strait of Juan de Fuca.  
15. The frequency 156.525 MHz is to be used exclusively for distress, safety and  
calling using digital selective calling techniques. No other uses are permitted.  
16. The frequency 156.450 MHz is available for intership, ship and coast general  
purpose calling by noncommercial vessels, such as recreational boats and pri-  
vate coast stations.  
17. The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska  
for facsimile transmissions as well as voice communications.  
Page 38  
HX370S  
 
9. WARRANTY  
Marine Products Limited Warranty  
STANDARD HORIZON (a division of VERTEX STANDARD) warrants, to the  
original purchaser only, each new Marine Communications Product (“Prod-  
uct”) manufactured and/or supplied by STANDARD HORIZON against de-  
fects in materials and workmanship under normal use and service for a  
period of time from the date of purchase as follows:  
3 years Waterproof - if purchased after 01/01/94  
Associated Chargers  
3 years - if purchased after 01/01/91  
Associated Batteries - 1 year. Note: Batteries will be deemed deflec-  
tive only if storage capacity drops below 80%  
of rated capacity or if leakage develops.  
Associated Accessories - 1 year. Includes: Microphones/Handsets, Ex-  
ternal Speakers, Antennas, Carrying Accesso-  
ries, Power Supplies, and Signaling Boards.  
In the event of a defect, malfunction or failure of the Product during the  
warranty period, STANDARD HORIZON’s liability for any breach of contract  
or any breach of express or implied warranties in connection with the sale of  
Products shall be limited solely to repair or replacement, at its option, of the  
Product or part(s) therein which, upon examination by STANDARD HORIZON,  
appear to be defective or not up to factory specifications. STANDARD  
HORIZON may, at its option, repair or replace parts or subassemblies with  
new or reconditioned parts and subassemblies. Parts thus repaired or re-  
placed are warranted for the balance of the original applicable warranty.  
STANDARD HORIZON will not warrant installation, maintenance or service  
of the Products. In all instances, STANDARD HORIZON’s liability for dam-  
ages shall not exceed the purchase price of the defective Product.  
This warranty only extends to Products sold within the 50 States of the United  
States of America and the District of Columbia.  
STANDARD HORIZON will pay all labor to repair the product and replace-  
ment parts charges incurred in providing the warranty service except where  
purchaser abuse or other qualifying exceptions exist. The purchaser must  
pay any transportation expenses incurred in returning the Product to  
STANDARD HORIZON for service.  
HX370S  
 
Page 39  
This limited warranty does not extend to any Product which has been sub-  
jected to misuse, neglect, accident, incorrect wiring by anyone other than  
STANDARD HORIZON, improper installation, or subjected to use in viola-  
tion of instructions furnished by STANDARD HORIZON, nor does this war-  
ranty extend to Products on which the serial number has been removed,  
defaced, or changed. STANDARD HORIZON cannot be responsible in any  
way for ancillary equipment not furnished by STANDARD HORIZON which  
is attached to or used in connection with STANDARD HORIZON’s Products,  
or for the operation of the Product with any ancillary equipment and all such  
equipment is expressly excluded from this warranty. STANDARD HORIZON  
disclaims liability for range, coverage, or operation of the Product and ancil-  
lary equipment as a whole under this warranty. STANDARD HORIZON re-  
serves the right to make changes or improvements in Products, during sub-  
sequent production, without incurring the obligation to install such changes  
or improvements on previously manufactured Products.  
The implied warranties which the law imposes on the sale of this Product  
are expressly LIMITED, in duration, to the time period specified above. STAN-  
DARD HORIZON shall not be liable under any circumstances for conse-  
quential damages resulting from the use and operation of this Product, or  
from the breach of this LIMITED WARRANTY, any implied warranties, or  
any contract with STANDARD HORIZON. IN CONNECTION WITH THE  
SALE OF ITS PRODUCTS, STANDARD HORIZON MAKES NO WARRAN-  
TIES, EXPRESS OR IMPLIED AS TO THE MERCHANTABILITY OR FIT-  
NESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXCEPT AS  
EXPRESSLY SET FORTH HEREIN.  
Some states do not allow the exclusion or limitation of incidental or conse-  
quential damages, or limitation on how long an implied warranty lasts, so  
the above limitations or exclusions may not apply. This warranty gives spe-  
cific legal rights, and there may be other rights which may vary from state to  
state.  
ONLY PRODUCTS SOLD ON OR AFTER JANUARY 1, 1991 ARE COV-  
ERED UNDER THE TERMS OF THIS LIMITED WARRANTY.  
In addition to the warranty, STANDARD HORIZON includes a lifetime “flat  
rate” program to provide service after the warranty period has expired. If you  
wish to obtain the flat rate price for out-of-warranty repair, you must include  
the information on the Owner's Record with the unit when you return it to  
STANDARD HORIZON.  
Page 40  
HX370S  
 
Note: The flat rate amount is payable by the Owner only if STANDARD  
HORIZON or the STANDARD HORIZON Dealer determines that a repair is  
needed. After the repair, a 90-day warranty will be in effect from the date of  
return of the unit to the Owner.  
This service program is not available for equipment which has failed as a  
result of neglect, accident, breakage, misuse, improper installation or modi-  
fication.  
ON-LINE WARRANTY REGISTRATION  
VHF. It should be noted that visiting the Web site from time to time may  
be beneficial to you, as new products are released they will appear on  
the STANDARD HORIZON Web site.  
HX370S  
 
Page 41  
10. SPECIFICATIONS  
7.1 General  
Frequency range:  
156 MHz - 163.275 MHz (Marine Band + WX Band)  
Channel Steps: 25 kHz  
137 MHz - 174 MHz (LMR)  
Channel Steps: 12.5 / 25 kHz  
Frequency stability:  
Emission type:  
2.5 ppm (–22 °F to +140 °F [–30 °C to +60 °C])  
16K0G3E, 16K0F3E, 11K0F3E  
50 Ohms  
Antenna impedance:  
Supply voltage:  
7.2 VDC  
Current consumption:  
200 mA (Receive)  
40 mA (Standby, Saver Off)  
TX: 1.4 A (H)/0.9 A (M)/0.5 A (L)  
Operating Temperature: –22 °F to +140 °F (–30 °C to +60 °C)  
Waterproof rating:  
Case Size (W x H x D):  
Weight (Approx):  
30 minutes @ 1 meter depth (JIS 7)  
2.3” x 4.7” x 1.2” (58 x 120 x 30.5 mm)  
13.4 oz (380 g) with FNB-83  
7.2 Transmitter  
RF output power:  
Modulation Type:  
Max deviation:  
5 W/2.5 W/1 W @7.2 V  
Variable Reactance  
5 kHz (Wide)  
2.5 kHz (Narrow)  
Spurious emissions:  
At least 73 dB down  
Microphone impedance: 2 k-Ohm  
7.3 Receiver  
Circuit type:  
Double-conversion superheterodyne  
Intermediate Frequencies:1st: 21.7 MHz  
2nd: 450 kHz  
Sensitivity:  
0.25 µV 12 dB SINAD  
Adjacent channel selectivity: 70 dB  
Intermodulation response  
:
70 dB  
Selectivity:  
12 kHz / 25 kHz (–6 dB/–60 dB) (Wide)  
6 kHz / 18 kHz (–6 dB/–60 dB) (Narrow)  
600 mW @ 16 Ohm for 10 % THD (@7.2V)  
AF output:  
Page 42  
HX370S  
 
MEMO  
HX370S  
Page 43  
 
MEMO  
Page 44  
HX370S  
 
This device complies with part 15 of the FCC rules. Operation is subject  
to the condition that this device does not cause harmful interference.  
Part 15.21: Changes or modifications to this device not expressly ap-  
proved by Vertex Standard could void the User’s authorization to oper-  
ate this device.  
HX370S  
 
Copyright 2004  
VERTEX STANDARD CO., LTD.  
All rights reserved.  
Marine Division of VERTEX STANDARD  
US Headquarters  
10900 Walker Street, Cypress, CA 90630, U.S.A.  
No portion of this manual  
may be reproduced  
without the permission of  
VERTEX STANDARD CO., LTD.  
E M 0 0 8 N 1 0 1  
Printed in Japan  
 

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