User's Manual Part 4

Digital Liquid Cooled UHF
TV Equipment
Use of commands and description of indicators
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2.1.39. "AGC SETTING" window, SIRIUS version ONLY
This window is called up by pressing the "AGC" control keys in the "SETTINGS".
NOTE : This window is available in SIRIUS version only.
This windows is available in Maintenance mode only. It displays the status of the AGC parameters of
Exciter A or B.
Figure 32 : Exciter on air mitter D.D. for Trans
Figure 33 : E itter D.D. xciter on load for Transm
CONTROL KEYS FUNCTIONS DISPLAY/COMMENTS
Selects the GAIN control mode (manual or
automatic) for AGC of the transmitter PCL is locked (disabled).
Command is disabled while the
Validates a selection.
Cancels a selection.
Calls up the "SETTING" window.
Set the reference value in Auto Gain Control
loop.
REFER””
d is either validated or
cleared.
(AGC) Available with on-air exciter only.
Flashes until the “SET
comman
Calls up the “NUMERICAL VALUE” window in which
ontrol value (MGC) can be changed
Displays the attenuation value
Command is disabled while the
PCL is locked (disabled). the Main Gain C
Warning: This attenuator adjusts
the output power in manual gain of
the transmitter.
It’s to be expressed in dB. The
maximum attenuation is 25.0
Calls up the “NUMERICAL VALUE” window in which
the LIMITOR value can be changed
Displays the attenuation value
Command is disabled while the
PCL is locked (disabled).
Warning: This attenuator limits the
RF output of SIRIUS Exciter.
It’s to be expressed in dB. The
maximum attenuation is 25
9932 V2
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Numéro / Number Doc. Rev. Lan
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27/06/2006
Pa
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