HP 8920A - Mod in to; RF Gen Freq

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Chapter 18, RF Generator Screen
Field Descriptions
Mod In To
This modulation input field defines how an external modulation source is used
with the RF Generator. Two fields are used:
• The upper field determines whether the rear-panel MODULATION INPUT signal is set
for AM or FM modulation of the RF GENERATOR.
• The lower field sets the modulation sensitivity. For instance, if FM (/Vpk) is selected
for the upper field, and you set the lower field to 1.0000 kHz, the RF Generator will
deviate 1 kHz for every 1 Volt peak at the MODULATION INPUT connector.
In addition, the peak deviation produced by MIC signals will be approximately
1 kHz.
Output Port
Output port selects the desired RF Generator output port.
Operating Considerations
Maximum signal levels at each port are printed on the front panel.
CAUTION: Applying reverse RF power to the DUPLEX OUT connector can damage the instrument.
(A message is displayed when an overpower conditions occurs.) Whenever possible when
testing transceivers, use the RF IN/OUT connector to prevent damage from accidental
transmitter keying.
If a reverse power condition triggers the internal protection circuit, remove the reverse
power signal and press the MEAS RESET key, or turn the Test Set off and on to reset it.
RF Gen Freq
This field sets the RF generator’s frequency.