Lem Elettronica AT450SAW, Manual

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To select a different configuration:
-
press “ENTER” : the display starts blinking.
-
press “UP” or “DOWN” to choose the desired configuration.
-
press “ENTER” again to confirm your choice: the display will return with a fixed light and it will
show the selected configuration.
3) UHF cluster attenuation levelling
The attenuation of each cluster can be levelled from 0 to –30 dB with 1 dB steps.
The cluster can also be switched off.
This function will be shown on the display by the visualisation of “L+ cluster number”.
Procedure
From the cluster-groups’ visualisation/configuration mode you can sequentially go to the visualisation
of the clusters’ channels parameters.
To enter into the adjustment mode:
-
press the “ENTER” key. The display will start blinking. This indicates the parameters’ setting mode.
-
press “UP” or “DOWN” to adjust the cluster’s attenuation level.
-
press “ENTER” again to confirm your choice.
To deactivate a cluster:
-
press the “ENTER” key .The display will start blinking. This indicates the parameters’ setting mode.
-
press the “UP” and “DOWN” keys simultaneously.
-
the display will show the word
o F
.
- press “ENTER” again to confirm your choice.
4) Clusters’ amplitude setting
The bandwidth (from 1 to 6 channels) and the attenuation level (from 0 to –30 dB Typ) of the 10
clusters can be independently adjusted.
For the setting you need to select the desired cluster (F1…F0) and then adjust the attenuation level, if
you require to use it, or
switch it off choosing
o F .
Afterwards you can select the cluster’s start and stop channels.
If you switch a cluster off, it is better to reset its channels to zero choosing
o F .
Procedure
-
start from visualisation mode (display fixed switched on) of the first cluster’s level settlement.
-
press the “UP” key: the display will show the F1 cluster .
-
The display will also indicate the F1 cluster’s start channel by the lighting of the second LED.
-
press “UP” again .
-
the display will show the F1 cluster’s stop channel followed by a dot
F I 27.
Note:
If the start channel is at the same value as the stop one ( single-channel setting) the display will
indicate this mode viewing the word
o F
as cluster’s stop channel
F I oF.