Specifications

Test Commands
Rev. 8 May.12 Proprietary and Confidential 111
!DASCHAN
Supporting chipsets:
• All
Note: The modem must be in
FTM mode to use this
command—use
!DAFTMACT
to enter FTM mode.
Set modem channel (frequency)
Set the modem to operate on a particular frequency channel. Before using this
command, use the command !DASBAND (described on page 110) to set the band.
Once a channel is set, the modem continues to use that channel until the modem is
reset or powered off and on.
Usage:
• Execution: AT!DASCHAN=<rfchannel>
Response:
<rfchannel>
OK
Purpose: Set modem channel (frequency).
Parameters:
<rfchannel> (Uplink channel number (ARFCN)—depends on frequency band being
used)
• 128–251: GSM 850 MHz
• 1–24: GSM 900 MHz
• 975–1023: GSM 900 MHz
• 512–885: GSM 1800 MHz
• 512–810: GSM 1900 MHz
• 9612–9888: WCDMA 2100
• 9262–9538: WCDMA 1900
• 4132–4233: WCDMA 850
• 2712–2863: WCDMA 900
• 18000–18599: LTE B1
• 19200–19949: LTE B3
• 19950–20399 LTE B4
• 20750–21449: LTE B7
• 21450–21799: LTE B8
• 23180–23279: LTE B13
• 23730–23849: LTE B17
• 24150–24449: LTE B20
Note: !DASBAND must be issued before you can use !DASCHAN .
Table 5-2: Test command details (Continued)
Command Description