Band Selection Parameters

Last updated: May 8, 2002

Band selection parameters allow you to choose the frequency band for different channel types in GSM or GPRS:

GSM Band Selection Parameters

When the operating mode is active cell and the call connected state is idle, changes to the cell band parameter will be reflected in the traffic band and manual band parameters as well.
When the operating mode is active cell and the call connected state is connected, changes to the cell band parameter will disconnect any call in progress.
When the operating mode is test mode and the test function is set to BCH, the cell band parameter should be used. See CALL:FUNCtion:DOWNlink .
When the operating mode is test mode and the test function is set to CW, the cell band parameter should be used.

When the operating mode is active cell and the call connected state is connected, changes to the traffic band parameter cause an inter-band channel assignment. See How the Test Set Performs a Dualband Handover .
When the operating mode is active cell and the call connected state is connected, changes to the traffic band parameter are not reflected in the cell band or the manual band parameters.
When the operating mode is test mode and the test function is set to BCH + TCH, the traffic band parameter should be used. See CALL:FUNCtion:DOWNlink .

When the receiver control parameter is set to manual, changes to the manual band parameter are not reflected in the traffic band or cell band parameters.
Setting the manual band parameter changes the receiver control parameter to manual.
When the receiver control parameter is set to manual, changes to the cell band parameter set the receiver control parameter to auto; however, the manual band parameter changes to match the cell band setting. You do not need to set receiver control back to manual.

When the operating mode is test mode and the downlink function is set to CW, the test set operates like a signal generator with level and frequency controls. See CW Test Function Behavior .


Parameter	GPIB Command
Cell Band	CALL[:CELL]:BAND[:SELected]
Packet Data Traffic Channel Band	CALL:PDTCH:BAND

When the data connection status is not transferring (see Data Connection Processing State Synchronization ), changing the cell band parameter to a new band changes the packet data traffic channel band to the new band as well.
When the data connection status is transferring (see Data Connection Processing State Synchronization ), changing the cell band parameter will disconnect any data connection in progress.

When the data connection status is transferring (see Data Connection Processing State Synchronization ), changing the packet data traffic band parameter selects the PDTCH ARFCN and uplink burst TX level parameters. However, the setting will not be applied until you re-start the data connection using CALL:FUNCtion:DATA:START .