Rover ST2 - ANALOGUE TV SIGNAL MEASUREMENT: MEAS

Brief description
Measurement start up
pag. 17
ST2 User’s Manual
TV Mode
3.0 ANALOGUE TV SIGNAL MEASUREMENT: MEAS
The MEAS key starts the available measurements on the tuned channel. In this
section we describe all the measurements available for an analogue TV channel. If you
repeatedly press the MEAS key, the display shows, in sequence (see next paragraph),
all the measurements carried out on the selected channel as a numerical value and
with a graphic bar that varies its length proportionally according to the represented
measurement. This bar memorises the peak measurement value.
Tuning:
The upper part of the display shows the tuning parameters for the TV channel.
The displayed parameters are those of the active channel. To change them use
the SELECT [10] key to highlight the fi elds to be changed and use the UP [7]
and DOWN [9] keys to modify their values. The following parameters can be
modifi ed in the user generated plans: channel number, frequency, signal modu-
lation (FM Radio, analogue or digital TV), audio carrier and its relevant modula-
tion type (this only applies to analogue signals) and power feed on the RF input.
It is possible to obtain all the tuning parameters only in the fi rst measurement
level (see note below).
Measurements:
The bottom part of the display shows all the measurements available for the
tuned channel. See the “Useful Suggestions” section at the beginning of this
User’s Guide for more details.
Repeatedly press the “MEAS” [6] key and the following measurements will be
displayed for analogue signals:
• Measurement level 1: Analogue video carrier level (ref. par. 3.1),
• Measurement level 2: Measures the V/A ratio (the difference in dB between
the video and audio carrier level) and the C/N measurement (ref. par. 3.2).
• Measurement level 3: Measures the audio carrier level and it is possible to
evaluate the sound quality from the built-in speaker (ref. par. 3.3).
NOTES
• It is possible to vary all the tuning parameters, memory plan, channel number, frequency and
channel type (FM Radio, analogue or digital TV) only when in the fi rst level measurement display
(where the analogue video carrier measurement is shown). In all other measurement levels only the
memory plan number, the channel or the frequency values can be changed.
• To hear the TV signal audio carrier in Measurement level 3, make sure that the meter’s volume
is turned on.
• For the “Television” plan (standard canalization) only the chanel number and the RF power feed
may be changed (ON/OFF).