Chapter 5 117
Analog Measurements - Screens and Control Fields
AF Freq Measurement DC Level Measurement
AF Freq Measurement
The AF frequency measurement is the audio frequency of the signal
present at the input selected in the AF Anl In field (on the AF
ANALYZER screen). Four dashes (- - - -) indicate that no audio
frequency is present to measure.
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information. See also the "AF Anl In" field on page 123.
Screens on which this measurement is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
DC Level Measurement
This measurement field displays the dc voltage entering at the source
set in the AF Anl In field (on the AF ANALYZER screen).
See "SINAD, Distortion, SNR, AF Frequency, DC Level," on page 38 for
more information. See also the "AF Anl In" field on page 123.
Operating Considerations
When the AF Anl In field is set to FM Demod or AM Demod, the
unit-of-measure is kHz (for FM Demod) or % (for AM Demod). For these
two settings this measurement indicates the dc modulation component
of the received signal.
Screens on which this field is displayed
AF ANALYZER
RF GENERATOR
RF ANALYZER
