WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
All rights reserved
Wavecom Confidential & Proprietary Information
Page: 27 / 55
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
5.5 Verifying the received signal strength
The Fastrack modem establishes a call only if the received signal is sufficiently
strong.
To verify the received signal strength, do the following operations:
! Using a communication software such as Hyperterminal, enter the AT
command
AT+CSQ
.
The response returned has the following format:
+CSQ: <rssi>,<ber>
with:
o
<rssi>
= received signal strength indication,
o
<ber>
= channel bit error rate.
! Verify the
<rssi>
value returned which interpretation is given in the
table below.
Table 2: Values of received signal strength
Value of received signal
strength indication (<rssi>)
Interpretation of the
received signal strength
0 - 10 Insufficient(*)
11 - 31 Sufficient(*)
Greater than 99 No measure available
(*) Based on general observations.
For further information about AT commands refer to document [1].
To Next Page
Need help?
General
