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S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_prog_fer.fm
Programming an FER (Frame Error Rate) Measurement
Programming an FER (Frame Error Rate) Measurement
This section provides an example of how to make an FER measurement via GPIB.
The following program example assumes that the mobile station’s antenna output is connected to the RF
IN/OUT connector, and the mobile station has found service.
For information on configuring the test set for a call, see “Step 4: Make a connection” on page 110.
The basic procedure to test FER is as follows:
1. Make a SO (service option) 2, 9, or 55 call (see “CALL[:CELL]:SOPTION” on page 382).
2. Configure the FER Setup parameters using the “SETup:CFERror” subsystem.
3. Start the FER measurement using the “INITiate” subsystem.
4. Use the “FETCh:CFERror” command to obtain the measurement results.
Programming Example
10 RE-SAVE "c:\roadhog\programs\fer.txt"
20 !This program measures frame error rate
30 !See "Receiver Sensitivity and Dynamic Range" in TIA/EIA-98-D for specifications and
standards
40 CLEAR SCREEN
50 A=714
60 !***Specify call parameters***
70 Systype$="DIGITAL2000" !Cell System Type
80 Band$="USCELLULAR" !Cell band
90 Channel=384 !RF Channel
100 Sid=1 !System Identification
110 Nid=1 !Network Identification
120 Radio_config$="F3R3" !Radio Configuration
130 Service_opt$="SO2" !Service Option
140 !
150 !***Specify test parameters***
160 Loss_frequency$="836 MHZ,881 MHZ" !Reverse channel, forward channel frequencies for
amplitude offset (path loss)
170 Expected_loss$="-2,-2" !Path loss at reverse channel, forward channel frequencies
180 Ior=-104 !Cell power
190 Pilot=-7 !Pilot channel power level
200 Traffic=-15.5 !Traffic channel power level
210 !
220 ON TIMEOUT 7,20 CALL Timeout ! Calls "Timeout" routine
230 OUTPUT A;"SETUP:CFER:TIMEOUT:STIME 10 S" !Sets FER measurement timeout to 10 seconds
240 OUTPUT A;"SYST:COMM:GPIB:DEB:STAT ON" !Turns debug state on
250 !
260 !***Set up path loss***
270 OUTPUT A;"SYSTEM:CORRECTION:SFREQUENCY ";Loss_frequency$ !Enters frequencies in
Amplitude Offset table
280 OUTPUT A;"SYSTEM:CORRECTION:SGAIN ";Expected_loss$ !Enters loss values in Amplitude
Offset table
290 !