Golden Spring GS-7700USB User Manual - page 9
9
GS-7700USB
Frequency Range
: 136-174MHz and 400-500MHz
Power Output
: 5 Watts (VHF), 5 Watts (UHF)
Talk Range
: 5-8km
Volume
: 58 x 110 x 35 mm
Features
99 Memory Channel
1750KHz Burst Tone
FM Radio (65MHz-108MHz)
CTCSS/DCS with Separate Setting in TX/RX
Low Battery Alert
VOX Voice Activate Transmit
Dual Watch Receiver with Dual Display
Channel Step 5 / 6.25 / 10 / 12.5 / 25 kHz
Frequency Shift with Offset from 0.10 to
37.000MHz
Tx Time Out Timer
PC programming
Specification
GENERAL
Channel Capacity
: 128
Channel Spacing
: 5 / 6.25 / 10 / 12.5 / 25KHz
Operated Voltage
: 7.4V
Frequency Stability
: 2.5ppm(-20 º C ~+60 º C )
Operated Temperature
: -30 º C ~+60 º C
Antenna Impedance
:
50 Ω
TRANSMITTER
Modulation
: F3E
Spurious Emission
:
FM Noise(N/W)
:
≥-45dB≥-40dB
Audio distortion
: Less than10.%
Adjacent Channel Power
:
≤-65dB≤-60dB
Max Frequency Deviation
: 5KHz (N)/ 2.5KHz (W)
Frequency Error
: 500Hz
Modulation Distortion
: 0.1KHz (300-3000KHz)
Transmitting Current
: About1.4A