Wavecom FASTRACK M1306B Betriebsanweisung PDF herunterladen (Seite 27)

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20th July 2004

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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:

<rssi>

= received signal strength indication,

<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].

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Wavecom FASTRACK M1306B Betriebsanweisung Seite 27