HP 8920A - Atten Hold

345
Chapter 9, Duplex Test Screen
Field Descriptions
Amplitude
This field adjusts the amplitude of the RF Generator.
Operating Considerations
This is a priority control field. Accessing the RX TEST or TX TEST screen
overrides any changes made to this field in other screens.
If a microphone is connected, and the amplitude is set to
Off, keying the
microphone causes the amplitude to turn on to its previous level until the
microphone is no longer keyed.
See Also
Atten Hold
field description, on page 345
"Interaction Between Screens" on page 54
"MIC/ACC" on page 568
Atten Hold
Attenuator hold prevents the fixed RF output attenuators from switching in and
out, eliminating the loss of the output signal as the level is changed. This function
is helpful when making squelch measurements.
Operating Considerations
When this function is set to On, the RF output level is restricted to a range of
15 dB around the present
Amplitude setting. Attempting to set an amplitude
outside the allowed range results in an error message and beep (if the beeper is
on). RF output level accuracy is greatly degraded outside the allowed range.