INSTRUCTION MANUEL. PROMAX-8+
a)
THRESHOLD
It defines the minimum level to show channel on the display (OFF or between 21
and 120 dBµV). If the threshold is deactivated (OFF), on the SCAN representation
will appear all the active channels of the channel plan with a level higher than 20
dBµV. Otherwise, if we define a level for the THRESHOLD parameter, channels
with a level lower than the threshold value will not be displayed.
b)
REFERENCE LINE
It permits to activate or to deactivate (OFF) a reference line on the SCAN graph
(between 21 and 120 dBµV). This reference line allows to establish judgements of
channel level acceptance just with a glance at the SCAN screen.
To leave the SCAN operating mode configuration menu, just press the key of the
operating mode you wish to access.
4.2.3 CHANNEL-FREQUENCY operating mode
The
CHANNEL-FREQUENCY
measurements:
Analogue channels:
Digital channels:
To access to this mode of operation, press the CH-FR key [10]. There exist two
tuning modes: by channel or by frequency. To switch the tuning mode press the
CH-FR key [10].
May 2001
operating
- Video carrier level
- Carrier / Noise (C/N) ratio
- Video / Audio (V/A) ratio
- CSO-CTB intermodulation distortion measurement
- Channel power by measurements integration
- Carrier / Noise (C/N) ratio
IMPORTANT
mode
provides
the
following
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