Analogue Fm: Measuring The Level And Demodulating Signal; Analogue/Digital Tv: Measuring The Carrier / Noise Ratio (C/N) - Promax TV EXPLORER HD User Manual

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
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
menu and turn the rotary selector
analogue FM
Figure 25.-
FM analogue signal measurement.
HD / HD
carries out
LE
USER'S MANUAL.
[17] key to accede to the
measurement mode, the
C/N
ratio measurement in four different
TV EXPLORER HD / HD
[1] in order to select the
TV EXPLORER
LE
HD /
10/2012