Rev.
6
Oct.18
Proprietary and Confidential - Contents subject to change
175
!DASCHAN
Set modem channel (frequency)
Set the modem to operate on a particular frequency channel. Before using this command,
use the command
(described on
) 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.
Requirements:
•
to enter FTM mode.
•
to set the device to an LTE, WCDMA, or GSM band.
•
If In LTE mode (an LTE band was selected):
•
to set the LTE Rx bandwidth.
•
to set the LTE Tx bandwidth.
•
to set the uplink channel for the selected band.
Password required:
Yes (see
for details)
Reset required to apply changes:
No
Persistent across power cycles:
No
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
Table 6-2: Test Command Details (Continued)
Command
Description
