Q
UICK
G
UIDE
4.
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
No operation indication
Transmitter’s batteries are exhausted or DC in
is not well connected
No RF signal
Transmitter and receiver are not at the same
channel
Transmitter is out of range
RF signal available, no audio signal, ”MUTE”
appears on the display panel
Transmitter is muted
Receiver’s squelch threshold is adjusted too
high
Transmitter doesn’t transmit a pilot tone
Audio signal has a high level of background
noise
Transmitter sensitivity is adjusted too low
Receiver’s AF output level is adjusted too low
Audio signal is distorted
Transmitter sensitivity is adjusted too high
Receiver’s AF output level is adjusted too high
The use of short-distance, Signal instability
Transmitter set at a low-power
Squelch threshold is too high
Receiver antenna set improperly
Surrounded by strong electromagnetic
interference
5.
TECHNICAL SPECIFICATIONS
SYSTEM
Frequency range
823 - 832MHz
Modulation Mode
Broadband FM
Available Bandwidth
50MHz
Number of channels
100
Channel spacing
250KHz
Frequency stability
±0.005%
Dynamic range
100dB
Peak deviation
±45KHz
Audio response
80Hz-18KHz(±3dB)
Comprehensive SNR
>105 dB
Comprehensive Distortion
≤0.5%
Operating Temperature
-10°C to +40°C
