BASIC OPERATIONS
■
Data bits: 8
■
Parity: none
■
Stop bit: 1
■
Flow control: hardware
To confirm you are communicating with the device:
■
Type
AT
and press
Enter
.
If the device responds with OK, you are communicating with the device.
Verifying Signal Strength
To verify the device signal strength, enter:
AT+CSQ
The command indicates signal quality, in the form:
+CSQ: <rssi>,<ber>
Where:
<rssi>
Received signal strength indication.
0
(-113) dBm or less
1
(-111) dBm
2-30
(-109) dBm - (-53) dBm / 2 dBm per step
31
(-51) dBm or greater
99
Not known or not detectable
<ber>
Bit error rate, in percent
0
Less than 0.2%
1
0.2% to 0.4%
2
0.4% to 0.8%
3
0.8% to 1.6%
4
1.6% to 3.2%
5
3.2% to 6.4%
6
6.4% to 12.8%
7
More than 12.8%
99
Not known or not detectable
QuickCarrier
TM
USB-D EV-DO MTD-EV3 User Guide
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