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7 SPECIFICATIONS
Performance specifications are nominal, unless otherwise indicated, and
are subject to change without notice.
7.1 GENERAL
Frequency Range..............................................................156.050 to 163.275 MHz
Channels...............................................................65 total: 55 marine + 10 weather
Input Voltage ................................................................................13.8 VDC ± 20 %
Current Drain:
Standby ...............................................................................................0.5 A
Receive ...............................................................................................1.5 A
Transmit.........................................................................6 A (Hi); 1.7 A (Lo)
Physical Characteristics................................................2.52” H x 5.91” W x 5.28” D
(64 mm x 150 mm x 134 mm)
1.68 Ib. (0.76 Kg)
FCC Type Acceptance Number ................................................................APV0493
DOC Type Approval Number.....................................................363822161LVCA
7.2 TRANSMITTER
RF Output...................................................................................25 W (Hi); 1W (Lo)
Conducted Spurious Emissions.............................................65 dB (Hi); 50 dB (Lo)
FM Hum and Noise .................................................................................40 dB min.
Audio Response......................................within +2/-8 of 6 dB/octave pre-emphasis
Audio Distortion..................................................................................................5 %
Modulation........................................................................................................16F3
Frequency Stability (-20° to +50°C)........................................................± 0.0005 %
7.3 RECEIVER
Sensitivity:
20 dB Quieting...................................................................................0.4 µV
12 dB SINAD...................................................................................0.35 µV
Squelch Sensitivity (Threshold)......................................................................0.2 µV
Bandwidth
Acceptable Radio Frequency Displacement.................................± 4.5 kHz
Selectivity:
Spurious and Image Rejection ...........................................................70 dB
Intermodulation and Rejection at 12 dB SINAD Sensitivity................65 dB
Audio Output 5% Distortion................................................................................4 W
Audio Response..........................................................within +2/-8 of a 6 dB/octave
de-emphasis characteristic at 300 to 3000 Hz
Frequency Stability (-20° to +50°C)..........................................................± 0.001 %
Channel Spacing...........................................................................................25 kHz
Owner's Manual
GX1250S Page 17