GOLDENEAGLE TV 6.0.x user manual
– 07/2012
Page 23
Head Office
: Parc d’activites Kennedy - 20, avenue Neil Armstrong – F-33700 Bordeaux-Merignac (France)
Tel +33 (0)5 57 928 928
– Fax +33 (0)5 57 928 929 –
–
www.audemat.com
Multi-channel monitoring
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
time in
seconds
Channel 1
Channel 2
Channel 3
monitoring time
error before the alarm is triggered
alarm
no issue on the channel
When dealing with a series of channels, each channel is monitored for a set time (5 seconds on the example
above, with a 2 second delay before alarm).
Recorded start and end times depend in part on the monitoring cycle.
Channel 1: the error starts second 2 while the channel is monitored and ends second 16 while the channel is
also monitored. Alarm start and end times match actual times.
Channel 2: the error starts second 6 while the channel is monitored and ends second 11 when the channel is
no longer monitored. An error starts again second 18 and ends second 23. The monitoring unit cannot detect
the absence of error between second 11 and second 18. It is seen as a single error. Alarm start time: second
8; alarm end time second 23.
Channel 3: the error starts second 12 while the channel is monitored and ends second 20 when the channel
is no longer monitored. The monitoring unit detects the absence of error when starting to monitor the channel
again. Alarm start time: second 14; alarm end time: second 25.
It is also important to note that when a channel is not monitored, no measurements can be compiled on that
specific channel, leaving ‘blanks’ in the recorded measurement curves.
As a rule, be aware that the higher the number of monitored channels, the lesser monitoring time is spent on
each.
Scanning
It detects RF level variations over the whole band.
The idea is to regularly compare the levels obtained from a scan of the entire band with reference levels.
Each measurement that differs from the reference beyond the user-defined tolerance will trigger a SCAN
alarm. This particular operation is not done with each cycle. It has its own schedule. It does not interrupt the
monitoring cycle; it is executed in between 2 cycles.
Station 1
Scan
c+1
Station 2
Scan
c+1
