A3LA-R User Guide Version A
Document Number: 451-93156-001A
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B.112 +ADJANT
–
U
SER
A
NTENNA
A
DJUSTMENT
R
EQUIRED
Exec Command:
none
Unsolicited Announcement:
+ADJANT:<adj_required>
where:
<adj_required>:
The adj_required flag indicates whether the user needs to adjust the L-band antenna
position to improve reception.
0
Adjustment no longer required
1
Adjustment required
The “+ADJANT:1” message will be sent up to three times, at 5-second intervals, if
Layer 1 is attempting to acquire an L-band bearer but is unable to receive the BCCH
transmission from the SV, whether the attempt is due to an MT call (prior to RING
indication), MO call, or Location Update etc.
It is an indication that the user needs to deploy the antenna or adjust it to a better
orientation/location.
Note that if the acquisition fails or succeeds, there will in most cases be a subsequent
“+ADJANT:0”, but this is not guaranteed in all cases.
B.113 +WANTST,
+ANTST
–
A
NTENNA STATUS
Exec Command:
+WANTST
This command causes the A3LA-R’ internal state-change history to be deleted, so that
the next
time it polls the antenna status, a +ANTST:<ant_status> unsolicited message will be
generated
regardless of state.
A result code (normally “OK”) will be returned immediately, and the
+ANTST:<ant_status> message will follow later (potentially much later – see below).
Unsolicited Announcement: