Document No. 8128000560
Software Revision – N1B (07 Oct 04)
7-71
RT-9000 B
Figure 7.3.4.16 ALE Point-to-Point Call - Initiating Station Display
When Linking occurs, ALE Transmit calling (TX-SCAN) will cease and the message shown in Figure 7.3.4.17
will appear. Immediately after Linking, four (4) loud tones approximately 1/2 second long, in an On-Off
sequence, will be emitted from the Front Panel Speaker and signify Linking has occurred. The audio output
level of these alerting tones is fixed and not affected by the Front Panel ‘VOLUME’ control setting. Disabling
the Front Panel Speaker, however (as described earlier in 7.3.3.3), will silence the tones.
Figure 7.3.4.17 ALE Point-to-Point Call - Initiating Station - After Linking
The Operational Display shown in Figure 7.3.4.17 indicates the following information: 1) Operating frequency
and Channel Number used for Link, 2) ‘LK’ = a Link has been completed, 3) ‘SUN2’ = station CALL ID of the
station “Linking back” to the Initiating Station, and 4) ‘H’ = Link Quality Analysis (LQA) value of the received
frequency. The table shown in Figure 7.3.4.18 gives Displayed Link Quality Analysis (LQA) Value vs. SINAD
conversion values.
Selecting or depressing any Feature Menu key while a Link is intact will cause a “Link Terminate” message to
be transmitted and the “Break Link Process” to occur. A ‘LINK TERMINATE’ message will briefly appear in
the Operational Display and then automatically clear. This “Break Link Process” provides a means for the
Initiating Station to abandon an existing Link and perform other tasks.
If the Initiating Station calls and attempts to Link with the Called Station two (2) times on each frequency and
is unable to complete a Link, Calling (Transmit scanning) will cease and the following message will appear in
the Operational Display.
'TX-SCAN TERMINATED'
RC
MHZ
FUNCTION/
STATUS
CH 009.16717
TO SUN2
XMT
METER
S3 S6 S9 +20 +40 +60
20 60 100 150 FWD
RC
MHZ
FUNCTION/
STATUS
CH 0314.21200
LK SUN2 H
METER
S3 S6 S9 +20 +40 +60
20 60 100 150 FWD
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