Operating Manual for COMMUNICATIONS SERVICE MONITOR

GENERAL INFORMATION
Duplex testing
During all of the above procedures, the RF levels, the distortion levels and modulation levels can
be displayed on bar charts as well as being provided as a digital read-out. The AF waveforms can
also be studied using the digital oscilloscope facility.
Service Monitor
Service Monitor
MODULATED
RF TEST
SIGNAL
DEMODULATED AF SIGNAL
AF GENERATOR OUTPUT
Fig. 1-3 One port duplex test setup
RF SIGNAL
FROM RADIO
UNDER TEST
MODULATED RF TEST SIGNAL
MODULATED RF SIGNAL
DEMODULATED AF SIGNAL
AF GENERATOR OUTPUT
Fig. 1-4 Two port duplex test setup
Rx/Tx
Under
Test
Rx/Tx
Under
Test
Using the Duplex test facility, parameters for transmitter testing and receiver testing can be set-up
and displayed on one screen. This gives the capability to study the performance of duplex
transceivers. Both one port and two port units can be tested.
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C3242
C3243