HP 8921A User Manual page 291

Amplitude
Atten Hold
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
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 291
"Interaction Between Screens" on page 54
"MIC/ACC" on page 514
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
15 dB around the present
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.
, the RF output level is restricted to a range of
On
setting. Attempting to set an amplitude
Amplitude
Chapter 9, Duplex Test Screen
Field Descriptions
, keying the
Off
291