Standard Horizon Marine Tranciever GX1256S Operating Instructions

							GX1256SPage 61
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) 
						

							GX1256SPage 62
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. 
						

							GX1256SPage 63
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. 
						

							GX1256SPage 644: 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. 
						

							GX1256SPage 65
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). Include proof of purchase indicating model. serial
number, and date of purchase. STANDARD HORIZON will return the Prod-
uct 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- 
						

							GX1256SPage 66
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- 
						

							GX1256SPage 67
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. 
						

							GX1256SPage 68
ON-LINE WARRANTY REGISTRATION
THANK YOU for buying STANDARD HORIZON (a division of Vertex
Standard) products! We are confident your new radio will serve your
needs for many years!
Please visit www.standardhorizon.com to register the QUEST Ma-
rine 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. Also a statement
regarding product support should be added to the manual.
Product Support Inquiries
If you have any questions or comments regarding the use of the
QUEST+, you can visit the STANDARD HORIZON Web site to send
an E-Mail or contact the Product Support team at (714) 827-7600 ext
6300 M-F 7:00-5:00PST.
In addition to the warranty, STANDARD HORIZON includes a life-
time “flat rate” program to provide service after the warranty period
has expired. If you wish to obtain the flat rate price for out-of-war-
ranty repair, you must include the information on the Owner’s Record
with the unit when you return it to your Dealer or to STANDARD
HORIZON.
Lifetime Flat Rate Service Program: For the original Owner only, for
the lifetime of the unit, STANDARD HORIZON will repair the unit to
original specifications.
Note: The flat rate amount is payable by the Owner only if STAN-
DARD 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 installa-
tion or modification, or water damage (depending on the product). 
						

							GX1256SPage 69
13  SPECIFICATIONS
Performance specifications are nominal, unless otherwise indicated, and
are subject to change without notice.
13.1  GENERAL
Channels............................................All USA, International and Canadian
Input Voltage........................................................................13.8 VDC ±20%
Current Drain
Standby............................................................................................ 0.5 A
Receive............................................................................................ 1.5 A
Transmit................................................................... 5.0 A (Hi); 1.5 A (Lo)
Dimensions................................................2-1/2” H x 6-5/16” W x 6-5/16” D
(64 H x 160 W x 160 D mm)
Flush-Mount Dimensions.................................. 2” H x 5-5/16” W x 5-1/8” D
(50 H x 136 W x 130 D mm)
Weight......................................................................................2.2 lbs (1 kg)
13.2  TRANSMITTER
Frequency Range .................................................. 156.025 to 157.425 MHz
RF Output......................................................................25 W (Hi); 1 W (Lo)
Conducted Spurious Emissions................................. 80 dB (Hi); 60 dB (Lo)
Audio Response.............................................. within +1/-3 of a 6 dB/octave
pre-emphasis characteristic at 300 to 3000 Hz
Audio Distortion....................................................................................... 5 %
Modulation.....................................................16K0G3E, for DSC 16K0G2B
Frequency Stability (-20°C to +50°C)...........................................±0.0005%
FM Hum and Noise.............................................................................. 50 dB
13.3  RECEIVER
Frequency Range .................................................. 156.050 to 163.275 MHz
Sensitivity
20 dB Quieting.............................................................................0.35 µV
12 dB SINAD...............................................................................0.25 µV
Squelch Sensitivity (Threshold) .................................................. 0.13 µV
Modulation Acceptance  Bandwidth .................................................±7.5 kHz
Selectivity
Spurious and Image Rejection......................................................-70 dB
Intermodulation and Rejection at 12 dB SINAD........................... -70 dB
Audio Output............................................................................................ 4 W
Audio Response............................................ within + 2/–8 of a 6 dB/octave
de-emphasis characteristic at 300 to 3000 Hz
Frequency Stability (-20°C to +50°C)..........................................±0.0005 %
Channel Spacing................................................................................ 25 kHz
DSC Format.............................................................................. RTCMSC101 
						

							GX1256SPage 70
MEMO