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INSTRUCTION MANUAL
GX660
SPECIFICATIONS
GENERAL
Channel Spacing: 25 kHz
Supply Voltage: 7 .4 V DC 1400 mAh Li-Ion
rechargeable battery
Current Drain: Standby: 40 mA
RX: 200 mA at 0 .6 W audio
output (1 kHz)
TX: 1 .5 A at 5 W, 0 .8 A at 1 W .
Battery Life: 11 hrs at 5 W (high)/15 hrs at
1 W (low) (TX: 5%, RX: 5%,
Standby: 90%)
Dimensions: 137 .2 mm (h) x 63 mm (w)
x 41 mm (d)
Weight: 283g
TRANSMITTER
Frequency Range: 155 .425~162 .425 MHz
RF Output Power: Selectable : Hi = 5 W at 7 .4 V DC,
Low = 1 W at 7 .4 V DC
Conducted Spurious
Emission: < -36 dBm
AF Distortion: < 5%
MAX Deviation: +/- 5 kHz
Frequency Stability: +/- 1 .5 kHz
FM Noise: > 40 dB
RECEIVER
Frequency Range: 155 .425~162 .425 MHz
Sensitivity: 1 uV at 20 dB SINAD
Adjacent Channel Selectivity: > 70dB
Intermodulation Distortion: > 68dB
Spurious Response Rejection: > 70 dB
Audio Output Power: 0 .6 W
Speaker Impedance: 24 Ohms
NOTE:
Performance specifications are nominal value, unless
otherwise indicated, and are subject to change without notice
ATTENTION
The battery for your GX660 has been factory installed . Caution
should be exercised opening the battery compartment as the
water tight integrity of the radio could be compromised if not
properly assembled . Applying a thin coat of organic vegetable
oil to the 0-ring may assist in assembly .
MAINTENANCE AND CAUTION
The GX660 is designed to provide years of trouble free
operation with virtually no maintenance . Follow these simple
procedures to ensure that the GX660 continues to deliver top
performance:
• Rinse the GX660 lightly with fresh water after exposure to
salt water or the radio’s keys may become inoperable due
to salt crystallisation .
•
BE CAREFUL!
Extreme shock (dropping, etc .) may crack
the case or dislodge or damage the seals . Additionally,
wear or improper battery pack installation can damage the
battery compartment seal .
• Never transmit without an antenna attached to avoid any
damage to the radio .
• Avoid using or placing the GX660 in areas with
temperature below -15°C or above + 55°C . Do not place
on windshields, etc .
