154
S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_prog_afan_freq.fm
Programming an Audio Frequency Measurement
Programming an Audio Frequency Measurement
This section provides an example of how to make an audio frequency measurement with the Audio Analyzer
(AFANalyzer) via GPIB.
The following procedure assumes that an audio source is connected to the AUDIO IN connectors. See
Analyzer Measurement Description” on page 38
.
1. Configure audio analyzer measurement parameters using the SETup subsystem. When more than one
audio frequency signal may be present, use the 100 Hz bandpass filter to isolate the desired signal for
measurement (see the Programming Example below).
2. Start the audio analyzer measurement using the INITiate subsystem.
3. Use the FETCh? subsystem to obtain audio analyzer measurement results.
Programming Example
10 OUTPUT 714;”SETup:AFANalyzer:CONTinuous OFF” !Set the audio analyzer
20 !measurements to single trigger mode.
30 ! OUTPUT 714;”SETup:AFANalyzer:PEAK:VOLTage 3V” !Set the Expected peak voltage
40 !for the audio input level in Vpeak.
50 OUTPUT 714;”SETup:AFANalyzer:FREQuency:STATe ON” !Enable audio frequency meausurement.
60 OUTPUT 714;”SETup:AFANalyzer:FILTer TBPass” !Select the 100 Hz bandpass filter.
70 OUTPUT 714;”SETup:AFANalyzer:FILTer:TBPass 6000 Hz” !Set the 100 Hz bandpass
80 !filter’s center frequency to 6 kHz (example; to measure SAT frequency).
90 OUTPUT 714;”SETup:AFANalyzer:TIMeout 3S” !Set a timeout value of 3 seconds
100 !in case the measurement cannot be made.
110 OUTPUT 714;”INITiate:AFANalyzer” !Start the AF Analyzer measurement.
120 OUTPUT 714;”FETCh:AFANalyzer:FREQuency?” !Fetch the Audio Frequency result.
130 ENTER 714;Audio_frequency !Enter the returned value into a variable.
140 END
Related Topics
“Audio Frequency Measurement Description” on page 42
“AFANalyzer Troubleshooting” on page 704
“Audio Analyzer Measurement Description” on page 38
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 ...