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USER’S MANUAL FOR CZH618F-1000/500C TRANSMITTER
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5.1.3 Harmonic Suppression
a
．
Connect the test instrument to transmitter according to Figure 5-3;
b
．
Record harmonic suppression relative to carrier (<-60dB).
5.2 Maintenance
It needs to use new fans instead of the old ones which have worked more than 15000 hours. If
the digital FM broadcast transmitter works at a very dirty environment, for example a place with
much of dust, it must be to replace fans ahead of schedule.
6. Panel Description
6.1 Front Panel
1
——
LED Indicator
ON power supply indicator
；
Transmitter
Wattmeter
Dummy
Load
Spectrum
Analyzer
Attenuator
Figure 5-3 connecting for spectrum analyzer
