
43
S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_meas_aaudio_lev_desc.fm
Audio Level Measurement Description
Audio Level Measurement Description
How is an Audio Level measurement made?
Audio Level measures the AC voltage of the signal applied to the front-panel AUDIO IN connectors, and is one
of the Audio Analyzer measurements. Audio Level can be measured for signals in the frequency range of
100 Hz to 20 kHz, at levels from 1 mV
peak
to 20V
peak
. The measurement is made after any filtering is applied,
and can be made using an rms or peak detector. The type of detector being used for the measurement is
displayed next to the measurement value.
When measuring very low voltages, it may be helpful to use the Audio Analyzer’s adjustable bandpass filter
and the rms detector to reduce noise components.
For information on using the Audio Analyzer, see
“Audio Analyzer Measurement Description” on page 38
.
This measurement is not affected by the Amplitude Offset setting.
Considerations When Making Manual Audio Level Measurements
When manually controlling the test set from the front panel, all measurements default to using continuous
triggering. If you make digital measurements on a DTC using RF Rise or Protocol triggering, and then hand
off to an AVC and select an analog measurement, the analog measurement may not trigger and display a
result. This is because the digital measurement is still waiting for a burst transmission to trigger it (which it
won’t get from an analog signal) and therefore the measurements “freeze”. To prevent this from happening
when making analog measurements, either turn off the digital measurements or set their trigger source to
Immediate.
Related Topics
“Programming an Audio Level Measurement” on page 152
“AFANalyzer Troubleshooting” on page 704
Содержание 8960
Страница 14: ...14 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide cdma2000_titlepage fm ...
Страница 33: ...33 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_measurements fm Measurements Measurements ...
Страница 105: ...105 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_general_programming fm Programming Programming ...
Страница 247: ...247 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_hpib_command_syntax fm GPIB Commands ...
Страница 654: ...654 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters cdma2000_hpib_common fm IEEE 488 2 Common Commands ...
Страница 655: ...655 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_manual_operation fm Manual Operation ...
Страница 701: ...701 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_error_messages fm Troubleshooting ...
Страница 759: ...759 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters ch_configure fm Configuration Configuration ...
Страница 780: ...780 S Hp8960 E1962B CDMA 2000 Pi Release Reference Guide Chapters cdma2000_conf_name fm Test Application Name ...