HP 8920A User Manual page 487

AFGen2 To
Amplitude
This Audio Frequency Generator control is used to set two values:
• The upper field determines whether the AF signal modulates the RF Generator, or is
output through the AUDIO OUT connector.
• The lower field sets the amplitude (including Off). The level at the AUDIO OUT con-
nector is always in volts rms for standard sinewave operation across a low-impedance
output.
If the signaling option is installed, the sinewave can be set in units of rms or peak.
This is done in the
Sine Units
sinewave waveforms are used, or if the upper field is set to AM or FM, the level is
always expressed as a peak value.
See Also
"Function Generator Encoder" on page 393
RF Generator amplitude 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 off, keying the microphone
causes the Amplitude to turn on to its previous level until the microphone is no
longer keyed.
See Also
"Interaction Between Screens" on page 54
Chapter 18, RF Generator Screen
field for the Function Generator. When non-
.
Field Descriptions
487