Elproma Elektronika Sp. z o.o.
ul. Szymanowskiego 13
05-092 Łomianki k/Warszawy
E-mail:
Tel. +48 (22) 751 76 80
www.teleorigin.com
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8.6.
Verifying the strength of received signal
RB865io Terminal can establish connection with network if the received signal
strength is sufficiently strong.
To verify the signal strength and bit error rate, do the following:
Using software such as Hyperterminal enter
AT+CSQ
. This command displays the
received signal strength indication <rssi> and channel bit error rate <ber>. The modem
answers as follows:
+CSQ: <rssi>,<ber>
OK
<parameter>
Description
<rssi>
0 through 31 - covers the range of -113 dbm (or less) to -51dbm (or
greater)
<ber>
Channel bit error rate (in percent)
0
–7 RXQUAL values in the GSM 05.08 table
99 Unknown or not detectable
For further information about
AT
commands and their usage, refer to [1] / [2].
8.7.
PIN code status
To check PIN code status enter
AT+CPIN?
Command.
The table below shows the most interesting responses of the modem:
Answer
Description
+CPIN: SIM PIN
PIN code has not been entered
+CPIN: READY
PIN code has been entered correctly
For further information about
AT
commands and their usage, refer to [1] / [2].
