Last updated: December 3, 2008
Channel Mode Change is not applicable to GPRS or EGPRS.
This section provides an example of how to change a mobile station's channel mode to enhanced full rate speech via GPIB while a call is connected and a measurement is running.
The following procedure assumes that an active link is established between the test set and the mobile station. See Establishing an Active GSM Link with the Mobile Station .
The following program uses the TX Power measurement to show how to change the channel mode to enhanced full rate speech while a measurement is running. The TX Power measurement is chosen because it is one of the measurements that is supported in enhanced full rate speech mode.
10 OUTPUT 714;"CALL:TCHANNEL:CMODE FRSPEECH" !Ensure mobile is in 20 !full rate speech channel mode initially. 30 OUTPUT 714;"SETUP:TXPOWER:CONTINUOUS OFF" !Configures trigger 40 !mode to single for a TX Power measurement. 50 OUTPUT 714;"SETUP:TXPOWER:COUNT:NUMBER 100" !Configures a 60 !multi measurement of 100. 70 OUTPUT 714;"SETUP:TXPOWER:TRIGGER:SOURCE AUTO" !Configures the 80 !trigger source to auto. 90 OUTPUT 714;"INITIATE:TXPOWER" !Start TX Power measurement. 100 OUTPUT 714;"CALL:TCHANNEL:CMODE EFRSPEECH" !Sets the channel 110 !mode to enhanced full rate speech while 120 !the TX Power measurement is running. 130 REPEAT 140 OUTPUT 714;"INITIATE:DONE?" !Check to see if TX Power 150 !measurement is complete. 160 ENTER 714;Meas_complete$ 170 UNTIL Meas_complete$="TXP" 180 OUTPUT 714;"FETCH:TXPOWER:ALL?" !Fetch TX Power results. 190 ENTER 714;Integrity,Avg_tx_pwr 200 PRINT "TX Power Measurement Results" 210 PRINT "Integrity=";Integrity 220 PRINT "TX Power=";Avg_tx_pwr 230 END
The measurements returned by this program are: