WM620 AT
Command Manual
Copyright © Neoway Technology Co., Ltd
27
1: WCDMA only
2: AUTO
<prefer rat>:
0: no preference
1: GSM preferred (when rat mode=2)
2: WCDMA preferred (when rat mode=2)
Return Value
<CR><LF>+ERAT:
<current
rat>,<GPRS
status>,<rat
mode>,<prefer
rat><CR><LF>
<CR><LF>OK<CR><LF>
<CR><LF>+ERAT:<rat mode>,<prefer rat><CR><LF>
<CR><LF>OK<CR><LF>
<current rat>:
0: GSM
2: UTRAN
3: GSM w/EGPRS
4: UTRAN w/HSDPA
<GPRS status>:
0: GPRS
1: EDGE
2: HSDPA
255: unknown
Example
AT+ERAT=2,0
OK
Set the network standard to AUTO.
AT+ERAT=?
+ERAT:(0-2),(0-2)
OK
Query the valid parameter value
ranges.
AT+ERAT?
+ERAT: 4,2,2,0
OK
Query the current network standard.
Remarks
The settings of this command will be saved after the module is powered off.
The network standard setting takes effective only after the module is
powered on again.
When <rat mode> is set to 0 or 1, <prefer rat> can be set only to 0.