Motorola MICOM-2TS Spécifications Page 90

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Automatic Link Establishment (ALE)
51
Bi-directional Handshake
The bi-directional handshake is a shorcut procedure to exchange LQA
scores with other stations in the system without establishing a link. This
procedure is useful in the following cases:
The radio has only recently been switched on and an automatic
sounding cycle has not been completed yet.
The operator wishes to update the LQA scores before initiating a call
to another station.
When a new or passive station joins to the system.
In case of sudden atmospheric changes, etc.
The bi-directional handshake can be carried out either with a single
station or with all stations in the net; it can be carried out either on a
single channel or on all network channels. An AMD message can also
be added to the procedure.
At the end of the bi-directional procedure with a private station, the LQA
matrix is updated. The operator can then initiate a call and obtain the
best channel automatically. When the bi-directional procedure is
performed with a net,
all
stations in the net update their LQA tables.
ALE Programming
Motorola’s Mobile ALE is highly flexible. Its functions are programmed
from an external computer using the ALE Radio Service Software (RSS)
program. Refer to Motorola publication no. 68P02952C25.
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