HP 8920A - Page 73

FM Transmitters
71
Measurement Procedure:
1 Connect the Transmitter as shown.
CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed 60W
continuous (or 100 Watts for 10 sec/minute).
On the Test Set:
2 Press the PRESET key.
3 Press the TX key.
Using the knob and data entry keys:
4 Set Filter 1 to 300 Hz HPF.
5 Set Filter 2 to 3 kHz LPF.
6 Select the DECODER screen.
7 Set Mode to DTMF.
8 Set Input Level to 0.95 kHz.
9 Set Gate Time to desired value (typically 100 ms).
10 Set Arm Meas to Cont.
On the Test Set:
11 Adjust Volume control to desired level.
12 Adjust Squelch control until just closed.
Test Set Options Required
Decoder Option
Additional Equipment
Required
None
Special Test Considerations
None
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