Specifications

45
ON).
※
NOTE: The difference of RF signal strength between the un-mute and mute levels must be
greater than or at least equal to 0.15mV (i.e. at least -123.5dBm) for the squelch setting to work
properly. If they are too close, RSSI through the A/D conversion can not differentiate between
the mute and un-mute level properly. As a result, it would cause the CD (Carrier Detect) to act
intermittently.
7.4. TEST EQUIPMENT SETUP
Data Output
Audio Output
Data /Audio In
PTT
Input
sel.
Monitor
On
Off
Power
maxon
Power Supply
15 - 15 Connector
WATT Meter
& 20dB ATT.
DB9-Modular cable
Oscilloscope
Frequency
Counter
Modulation
Meter
Audio Output
Spectrum
Analyzer
450.025000
Audio generator
ACC-2160
(Test Fixture)
Figure 7.2. Test equipment setup for transmitter