Last Updated: August 29, 2007
This topic provides information about re-configuring the test set and wireless device connection parameters. Refer to the following sections:
For more information on the conventions used in the programming examples click here.
After performing a set of measurements on the wireless device using the configuration established in Configure test set and wireless device parameters, you may want to change this configuration and test the wireless device again. This step involves changing testing conditions such as channel, wireless device transmit power level, or cell power. Refer to the following sections for further information:
In a manufacturing environment it is common to test a wireless device on more than one channel. Some or all of the tests may be performed on multiple channels, to verify the wireless device's performance in a range of operating frequencies.
If you want to test in a new band, and assuming you have specified the channel numbers in advance using the TRANsceiver:CHANnel(:DCS|:EGSM|:GSM450|:GSM480|:GSM750|:GSM850|:PCS|:PGSM|:RGSM)[?] command, use the TRANsceiver:BAND:GCALibration[?] command. If you want to test another channel in the same band, use the TRANsceiver:BAND:GCALibration[?] command directly.
In either case, you must also send the appropriate test mode commands to the wireless device to move it to the new channel.
The following example, based on the GSM/GPRS/EGPRS Cal Application, shows you how to change to a new band (using the ARFCN that was set previously in Step 5. Configure test set and wireless device parameters), and how to set a new uplink power control level for the new band.
' Set active GSM/GPRS band to GSM450. This will use ARFCN 259 defined previously.
TestSet.WriteString("TRANsceiver:BAND:GCALibration GSM450")
' Set the traffic channel wireless device uplink power control
' level for the GSM450 band to 21.
TestSet.WriteString("RFANalyzer:MS:TXLevel:GSM450:BURSt1 21")