Micom 3f, Руководство пользователя

Страница: 63 / 164

Using Automatic Link Establishment (ALE)
45
Receiving and Transmitting Calls in ALE Mode
The MICOM-3 supports the following types of ALE calls:
•
Individual call – call directed to a specific station.
•
Net call – call directed to a net (a net is a preprogrammed group of stations).
•
Group call –
call directed to a group of stations.
•
AllCall – call directed to all other stations simultaneously (broadcast call); can also be used as a
distress call.
•
AnyCall – call directed to all other stations simultaneously, usually used to detect new stations.
•
Wildcard call – call simultaneously addressed to a selected group of stations within a net, with
wildcards used within the address to specify the desired stations. For efficient use of wildcards,
an appropriate station naming plan must be in place.
• Self call – call using the station’s own address, generally used for test purposes.
•
Bidirectional call – request for updating the LQA score with another station or stations.
•
Sounding call –
used to build a link quality database. This database stores ongoing information on
the current quality of the various channels programmed for use by your radio.
All types of calls, except for sounding calls, can also carry messages.
Note MICOM-3 also supports the MultiNet feature. When this feature is enabled, it can
receive and transmit ALE calls in several different nets (up to 20). See details on
page 41.
During ALE calls, a link is established between the stations participating in the call. During the link
state, the radio operators have various options, many of them similar to the options available in the
channel mode. For a description of the link options, see pages 48 to 52.
Receiving Calls in ALE Mode
When your MICOM-3 receives a call, it displays its type and the source address.
You are also notified when a message is attached: if a message is received,
the name of the calling station is preceded by an exclamation mark.
MICOM-3
FROM
!ABC
For any type of call, if the ALERT attribute is programmed to YES, you will hear the alert tone when a
message is received.
➤
Receiving an individual call:
When an individual call (i.e., a call addressed only to your station)
is received, the name of the calling station blinks in the display.
MICOM-3
FROM
ABC
Note If the calling station name is too long and does not fit in the display, <--> appears
next to F1. Press <--> (F1) to enter the View mode (see page 12).