Adjustments
7-32 HF SSB Transceiver 9323/9360/9390/9780 Technical Service Manual
Table 7 -8: Power output PEP vs measuring instrument
Power output PEP 100 W 125 W
Peak reading meter 100 W 125 W
RMS reading meter 50 W 62.5 W
Average reading meter
(e.g. Bird Model 43)
40.5 W 50.6 W
Emergency call (9323 only)
The Emergency Call facility is for use with the Australian Royal Flying Doctor
Service (RFDS).
The two-tone modulation frequencies of 880 Hz and 1320 Hz are determined by
the software. Therefore it is only necessary to carry out a function check as
follows.
q Connect a 50 Ω dummy load and power meter to the antenna connector.
q Connect an oscilloscope via a 47 kΩ resistor to the antenna connector.
q Select a test channel.
q Operate the Emgcy Call and check the following:
Output power
Approximately 100 W PEP
Modulating tones
Approximately of equal amplitude
(viewed on the oscilloscope)
Heard in the loudspeaker
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