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Extended AT Commands Manual Page 26 of 70 2009-06-25
5.5.1.4. Modem scheduled Information (AT$$Ping)
Scheduled information will include Antenna Signal, EC\Io, Time, RSCP Level and Location
Example output: RSSI[79], TIME[2007-07-18,08:20:21,WED],
ECIO:-13 ,RSCP[-71], L0151 R01 CI1CA5 SRB0----
Read command
Command TE2
Æ
MT2 $$PING?
Response TE2
Å
MT2 $$PING: <value>
Value
1~43200: Notification every <x> seconds. The modem sends a notification
continuously (at set interval). The notification should include RSSI, Time,
EC\Io, RSCP and location.
0 – disables this feature
Table 5-42 Set command
Command TE2
Æ
MT2 $$PING=<value>
Response TE2
Å
MT2 <result_code> (OK | ERROR)
5.5.1.5. RSSI inquiry (AT$$RSSI)
The command is used for reading the current RSSI value of the signal.
The RSSI LED will be OFF when RSSI is less than -105dBm, flashing when in-between the -
95dBm and -105dBm, and ON when greater than or equal to -95dBm.
NOTE: the higher the negative number i.e. the further away from ZERO, the weaker the received signal. The smaller the number i.e.
the closer to ZERO, the stronger the received signal.
A flashing RSSI LED indicates potential need for an alternative antenna, relocating the antenna to
a site more suited to signal acquisition, or elevation of the antenna to improve signal acquisition,
or a combination of all the above.
A consistent RSSI reading of -95dBm or better [number closer to ‘0’] is advisable.
Table 5-43 Read Command
Command TE2
Æ
MT2 $$RSSI?
Response TE2
Å
MT2 $$RSSI: <value>
Value RSSI: (-dBm)
5.5.1.6. Reading MT2 state (AT$$CURRSTATE)
This command displays current MT2 state information.
Table 5-44 Read command
Command TE2
Æ
MT2 $$CURRSTATE
Response TE2
Å
MT2 $$CURRSTATE: <value>