Redhawk II GSM Modem Users Guide
Draft: 10/30/00
29
Part Number: 07100020 version 00B
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
12.
Modem Status Commands
The following examples provide the AT commands and responses for querying the
status of the unit. For more information about the commands and response codes,
see the
Redhawk II Programmer's Manual
.
!
The following command checks to determine if the Redhawk II modem has
successfully registered with the GSM network.
App > Modem
AT+CREG?
Get the registration status
Modem > App
+CREG: 0,1*
OK
Registered with home network
+CREG=0,2 registration in progress
+CREG=0,5 registered as roaming
*First character can be “0” or “1”: “0” for manual response, “1” for auto
response.
!
The following command queries the strength of the RF coverage. This command
provides information about the RF coverage for the Redhawk II modem.
App > Modem
AT+CSQ
Get the signal strength (for this command, do
not enter “?”)
Modem > App
+CSQ: 20,99
OK
Receive signal strength = 20, -74 +/- 1 dBm
RXQUAL =99, unknown
Value
RSSI (dBm)
+/- 1 dBm
Value
RSSI (dBm)
0
< -110
16
-82
1
-110
17
-80
2
-109
18
-78
3
-108
19
-76
4
-106
20
-74
5
-104
21
-72
6
-102
22
-70
7
-100
23
-68
8
-98
24
-66
9
-96
25
-64
10
-94
26
-62
11
-92
27
-60