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On the screen appears the deviation peaks in order to observe if they are within a
suitable range limit valid for both, the receiver and the transmitter in the transmittting
system.
5.14.4 Analogue FM: Measuring the Level and demodulating signal
Measurement Configuration
Press the
CONFIGURATION
menu and turn the rotary selector
analogue FM signal. In the
HD
display works like an analogue level indicator showing the signal level present in
LE
the input.
The instrument also demodule the FM carrier (radio) and allows to listen sound
through the loudspeaker [33].
5.14.5 Analogue/Digital TV: Measuring the Carrier / Noise ratio (C/N).
TV EXPLORER
The
ways, according to the carrier type and the used band:
A)
Terrestrial band, analogue carrier
Carrier level is measured using a quasi-peak detector (230 kHz BW). Noise level is
measured with an average detector and corrected to refer it to channel equivalent
noise bandwidth (according to the definition of the selected standard).
B)
Terrestrial band, digital carrier
Both measurements are done with an average detector (230 kHz) and the same
corrections are introduced on them (bandwidth corrections).
Page 52
analogue FM
measurement mode, the
Figure 25.-
FM analogue signal measurement.
HD
/
HD
carries out
LE
TV EXPLORER HD / HD
USER'S MANUAL.
[17] key to accede to the
[1] in order to select the
TV EXPLORER
C/N
ratio measurement in four different
LE
HD
/
10/2012
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