Standard Horizon Marine Tranciever GX1280S Operating Instructions

							GX1280SPage 61
10.3  TROUBLESHOOTING CHART
SYMPTON
Transceiver fails to
power up.
Transceiver blows
fuse when connected
to power supply.
Popping or whining
noise from the
speaker while engine
runs.
Sound is not emitted
from the external
speaker.
Receiving station re-
port low transmit
power, even with
transceiver set to HI
power.
“HI BATTERY” or “LO
BATTERY” message
is appeared when the
power is turned on.
Your position is not
displayed.
PROBABLE CAUSE
No DC voltage to the
transceiver, or blown
fuse.
Reversed power
wires.
Engine noise.
Accessory cable.
Antenna.
The power supply volt-
age is too high or too
low.
Accessory cable.
Setting of the GPS
navigation receiver.
REMEDY
a. Check the 12VDC battery con-
nections and the fuse.
b. The VOL/PWR knob needs to
be pressed and held to turn the
radio on.
Check the power cable for DC volt-
age, or replace the fuse (6A 250V).
Make sure the red wire is con-
nected to the positive (+) battery
post, and the black wire is con-
nected to the negative (-) battery
post. If the fuse still blows, con-
tact your Dealer.
Reroute the DC power cables
away from the engine. Add noise
suppressor on power cable.
Change to resistive spark plug
wires and/or add an alternator
whine filter.
Check the connections of the ac-
cessory cable.
Have the antenna checked or test
the transceiver with another an-
tenna. If the problem persists, con-
tact your Dealer for servicing.
Confirm that the connected power
supply voltage is not 17 volts or
lower than 10 volts. Confirm that
the generator has not malfunc-
tioned.
Check the accessory cable con-
nection.
Some GPS use the battery ground
line for NMEA connection.
Check the output signal format of
the GPS navigation receiver. This
radio requires NMEA0183 format
with GLL sentence as an output
signal. If the GPS has a baud rate
setting make sure to select 4800
and parity to NONE. 
						

							GX1280SPage 62
11.  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 Inter-
national 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 set-
ting.
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 27 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
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. 
						

							GX1280SPage 63
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 CHARTCH U C I S/D TX RX CHANNEL USE01 X X D 156.050 160.650 Public Correspondence (
Marine Operator)01A X S 156.050 Port Operation and Commercial. VTS in selected areas02 X X D 156.100 160.700 Public Correspondence (
Marine Operator)03 X X D 156.150 160.750 Public Correspondence (
Marine Operator)03A X S 156.150 US Government only, Coast Guard
04 X D 156.200 160.800 Public Correspondence (
Marine Operator)
,
Port operation, ship movement
04A X S 156.200 Pacific coast: Coast Guard, East Coast:
Commercial fishing
05 X D 156.250 160.850 Public Correspondence (
Marine Operator)
,
Port operation, ship movement05A X X S 156.250 Port operation. VTS in Seattle06 X X X S 156.300 Inter-ship Sefety
07 X D 156.350 160.950 Public Correspondence (
Marine Operator)
,
Port operation, ship movement07A X X S156.350Commercial08 X X X S 156.400 Commercial (
Inter-ship only)
09 X X X S 156.450 Boater Calling channel, Commercial & Non-commercial
(
Recreational)10 X X X S156.500Commercial11 X X X S156.550Commercial. VTS in selected areas.12 X X X S 156.600 Port operation. VTS in selected areas.13 X X X S 156.650 Inter-ship Navigation Safety (
Bridge-to-bridge)14 X X X S 156.700 Port operation. VTS in selected areas.15 X S - - - 156.750 Environmental (
Receive only)15 X X S 156.750Commercial, non-commercial, ship movement (
1 W)16 X X X S 156.800 International Distress, Safety and Calling17 X X X S 156.850State Controlled (
1 W)18 X D 156.900 161.500 Port operation, ship movement18A X X S156.900Commercial19 X D 156.950 161.550 Port operation, ship movement19A X S 156.950US: Commercial19A X S 156.950 Coast Guard
20 X X X D 157.000 161.600 Canadian Coast Guard Only,
International: port operations and shipment20A X S 157.000 Port operation21 X D 157.050 161.650 Port operation, ship movement21A X X S 157.050 U.S. Government Only, Canadian Coast Guard22 X D 157.100 161.700 Port operation, ship movement
22A X X S 157.100 US and Canadian Coast Guard Liaison and Maritime
Safety Information Broadcasts announced on channel 16 
						

							GX1280SPage 64
VHF MARINE CHANNEL CHARTCH U C I S/D TX RX CHANNEL USE23 X X D 157.150 161.750 Public Correspondence (
Marine Operator)23A X S 157.150 U.S. Government Only24 X X X D 157.200 161.800 Public Correspondence (
Marine Operator)25 X X X D 157.250 161.850 Public Correspondence (
Marine Operator)26 X X X D 157.300 161.900 Public Correspondence (
Marine Operator)27 X X X D 157.350 161.950 Public Correspondence (
Marine Operator)28 X X X D 157.400 162.000 Public Correspondence (
Marine Operator)60 X X D 156.025 160.625 Public Correspondence (
Marine Operator)
61 X D 156.075 160.675 Public Correspondence (
Marine Operator)
,
Port operation, ship movement
61A X X S 156.075 U.S. Government Only, Canadian Coast Guard-
Pacific Coast, Commercial Fishing-East Coast
62 X D 156.125 160.725 Public Correspondence (
Marine Operator)
,
Port operation, ship movement
62A X S 156.125 Public Coast: Coast Guard;
East Coast: commercial fishing only
63 X D 156.175 160.775 Public Correspondence (
Marine Operator)
,
Port operation, ship movement63A X S 156.175Port Operation and Commercial. VTS in selected areas.
64 X X D 156.225 160.825 Public Correspondence (
Marine Operator)
,
Port operation, ship movement64A X X S 156.225U.S. Government Only, Canadian Commercial Fishing
65 X D 156.275 160.875 Public Correspondence (
Marine Operator)
,
Port operation, ship movement65A X X S 156.275 Port Opeations
66 X D 156.325 160.925 Public Correspondence (
Marine Operator)
,
Port operation, ship movement66A X X S 156.325 Port Operations
67 X X X S 156.375US: Commercial. Used for Bridge-to-bridge communi-
cations in lower Mississippi River. Inter-ship only,
Canada: Commercial fishing, S&R68 X X X S 156.425 Non-commercial (
Recreational)
69 X X X S 156.475US: Non-commercial (
Recreational)
,
Canada: Commercial fishing only,
International: Inter-ship, Port opertions and Ship movement70 X X X S 156.525Digital selective calling (
voice communications not allowed)
71 X X X S 156.575 US, Canada: Non-commercial (
Recreational)
,
International: Port opertions and Ship movement72 X X X S 156.625 Non-commercial (
Inter-ship only)
73 X X X S 156.675 US: Port Operations, Canada: Commercial fishing only,
International: Inter-ship, Port opertions and Ship movement
74 X X X S 156.725 US: Port Operations, Canada: Commercial fishing only,
International: Inter-ship, Port opertions and Ship movement75 X S 156.775 Port Operations (
Inter-ship only) (1W)76 X S 156.825
Port Operations (
Inter-ship only) (1W)77 X X S 156.875 Port Operations (
Inter-ship only) (1W)77 X S 156.875 Port Operations (
Inter-ship only)
78 X D 156.925 161.525 Public Correspondence (
Marine Operator)
,
Port operation, ship-movement78A X X S 156.925 Non-commercial (
Recreational) 
						

							GX1280SPage 65
VHF MARINE CHANNEL CHARTCH U C I S/D TX RX CHANNEL USE79 X D 156.975 161.575 Port operation and Ship movement79A X X S156.975Commercial80 X D 157.025 161.625 Port operation, ship movement80A X X S157.025Commercial81 X D 157.075 161.675 Port operation, ship movement
81A X X S 157.075 U.S. Government Only -
Environmental protection operations.
82 X D 157.125 161.725 Public Correspondence (
Marine Operator)
,
Port operation, ship movement82A X X S 157.125 U.S. Government Only, Canadian Coast Guard Only83 X X D 157.175 161.775 Canadian Coast Guard Only83A X X S 157.175 U.S. Government Only, Canadian Coast Guard Only83 X X D 157.175 161.775 Public Correspondence (
Marine Operator)84 X X X D 157.225 161.825 Public Correspondence (
Marine Operator)85 X X X D 157.275 161.875 Public Correspondence (
Marine Operator)86 X X X D 157.325 161.925 Public Correspondence (
Marine Operator)87 X X X D 157.375 161.975 Public Correspondence (
Marine Operator)88 X X X D 157.425 162.025 Public Correspondence (
ship-to-coast)88A X S 157.425 Commercial, Inter-ship OnlyWX01X X X D - - - 162.550 Weather (
receive only)WX02X X X D - - - 162.400 Weather (
receive only)WX03X X X D - - - 162.475 Weather (
receive only)WX04X X X D - - - 162.425 Weather (
receive only)WX05X X X D - - - 162.450 Weather (
receive only)WX06X X X D - - - 162.500 Weather (
receive only)WX07X X X D - - - 162.525 Weather (
receive only)WX08X X X D - - - 161.650 Weather (
receive only)WX09X X X D - - - 161.775 Weather (
receive only)WX10X X X D - - - 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. 
						

							GX1280SPage 66
Port Operations
01A1156.050 156.050
63A1156.175 156.175
052156.250 156.250
65A 156.275 156.275
66A 156.325 156.325
12
3156.600 156.600
73 156.675 156.675
14
3156.700 156.700
74 156.725 156.725
77
4156.875 Intership only.
20A12157.000 Intership only.
Navigational (Bridge-to-Bridge)5
136156.650 156.650
677156.375 156.375
Commercial
01A1156.050 156.050
63A1156.175 156.175
07A 156.350 156.350
67
7156.375 Intership only.
08 156.400 ........ Do.
09 156.450 156.450
10 156.500 156.500
11
3156.550 156.550
18A 156.900 156.900
19A 156.950 156.950
79A 156.975 156.975
80A 157.025 157.025
88A
8157.425 ........ Intership only.
7214156.625 ........ Internship only.
Digital Selective Calling
7015156.525 156.525
Noncommercial
6817156.425 156.425
0916156.450 156.450
69 156.475 156.475
71 156.575 156.575
72 156.625 ........ Intership only.
78A 156.925 156.925
79A 156.975 156.975 Great Lakes only.
80A 157.025 157.025 Do.
67
14156.375 ....... Internship only.
Distress, Safety and Calling
16 156.800 156.800 EPRIB
Intership Safety
06 156.300 ........ a. Intership, or b.
For SAR: Ship and
aircraft for the U.S.
Coast Guard.
Environmental
1513........ 156.750 Coast to ship only.
Maritime Control
179,10156.850 156.850
Liaison, U.S. Coast Guard
22A11157.100 157.100 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.
Ship
transmit
Channel
designatorCarrier frequency
(
MHz)Points of communica-
tion (Intership and be-
tween coast and ship
unless otherwise indi-
cated) Coast
transmit
Ship
transmit
Channel
designatorCarrier frequency
(
MHz)Points of communica-
tion (Intership and be-
tween coast and ship
unless otherwise indi-
cated) Coast
transmit
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 designated Vessel Traffic Services (VTS)
area of New Orleans, on the lower Mississippi 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 communica-
tions relating to the movement of ships in sectors designated by the St. Lawrence Seaway Develop-
ment Corporation or the U.S. Coast Guard. The use of these frequencies outside VTS and ship
movement sector protected areas is permitted provided they cause no interference to VTS and ship
movement communications in thier respective designated sectors. 
						

							GX1280SPage 67 4: Use of 156.875 MHz is limited to communications with pilots regarding the movement 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 systems. 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 junction with the Missis-
sippi River to its entry to Lake Pontchartrain at the New Seabrook vehicular bridge.
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 commercial communications. Outside
Puget Sound area and its approaches and the Great Lakes, 157.425 MHz is also available for
communications between commercial fishing vessels and associated aircraft while engaged in com-
mercial fishing 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 trans-
mission of scheduled Coded Marine Weather Forecasts (MAFOR), Great Lakes Weather Broadcast
(LAWEB) and nscheduled 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 rescuetraining exercises by state or local
government in conjunction with U.S. Coast Guard stations. Prior U.S. Coast Guard approval is re-
quired. 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 com-
munications.
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 ves-
sels operate, i.e., weather; sea conditions; time signals; notices to mariners; and hazards to naviga-
tion.
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 private 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. 
						

							GX1280SPage 68
12.  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:
Fixed Mount and Portable Transceivers
1 year - if purchased before 01/01/91
3 years - if purchased between 01/01/91 and 01/01/94
3 years Waterproof - if purchased after 01/01/94
Loud hailers
1 year - if purchased before 01/01/91
3 years - if purchased after 01/01/91
Associated Chargers
1 year - if purchased before 01/01/91
3 years - if purchased after 01/01/91
Associated Batteries - 18 months. 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, Exter-
nal Speakers, Antennas, Carrying Accessories, Power Supplies, and Sig-
naling Boards.
To receive warranty service, the purchaser must deliver the Product, trans-
portation and insurance prepaid, to STANDARD HORIZON (a division of
VERTEX STANDARD), Attention Marine repairs 10900 Walker Street, Cy-
press CA 90630. Include proof of purchase indicating model. serial number,
and date of purchase. STANDARD HORIZON will return the Product to the
purchaser freight prepaid. Products purchased prior to January 1, 1991 will
bear the STANDARD HORIZON warranty terms in effect prior to that date.
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 HORI- 
						

							GX1280SPage 69
ZON, 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 STAN-
DARD HORIZON for service.
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- 
						

							GX1280SPage 70
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.