Analogue Tv: Measuring The Fm Deviation; Analogue Fm: Measuring The Level And Demodulating Signal - Promax TV EXPLORER II Manual De Instrucciones

USER'S MANUAL. TV EXPLORER II/II+

5.14.3 Analogue TV: Measuring the FM deviation

The TV EXPLORER II / II+ measure the deviation in frequency of any modulated
analogue carrier in FM. This function allows visualising frequency peak deviation for FM
carrier signals.
Once this DESV FM measurement mode is activated will appear the following
information on screen:
0
FREC:
CAN:
Figure 24.- FM carrier peak deviation.
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

Press the Measurement Configuration
CONFIGURATION menu and turn the rotary selector [1] in order to select the analogue
FM signal. In the analogue FM measurement mode, the TV EXPLORER II / II+ display
works like an analogue level indicator showing the signal level present in the input.
10 30
FREQ:
CH:
Figure 25.- FM analogue signal measurement
12/2013
50 75
103.80 MHz NIVEL:
C/N
V/A:
» DESV FM
50 70 90 110
103.80 MHz » LEVEL:
FM DEV:
100
42.3 dBµV
0.7 dB
1.6 dB
: 41 kHz
[17] key to accede to the
130
56.6 dBµV
53 kHz
Page 49