Analogue Fm: Measuring The Level And Demodulating Signal - Promax US TV EXPLORER II Manual De Uso

0
FREQ:
CH:
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 transmitting
system.

5.14.4 Analogue FM: Measuring the Level and demodulating signal

Press the Measurement Configuration
CONFIGURATION menu and turn the rotary selector
analogue FM signal. In the analogue FM measurement mode, the US TV EXPLORER
II display works like an analogue level indicator showing the signal level present in the
input.
10
FREQ:
CH:
The instrument also demodules the FM carrier (radio) and allows listening to the
sound through the loudspeaker [33].
Page 50
50
876.70 MHz
Figure 26.- FM carrier peak deviation.
30 50 70
103.80 MHz
Figure 27.- FM analogue signal measurement
USER'S MANUAL. US TV EXPLORER
75 100
LEVEL: 42.3 dBµV
C/N 0.7 dB
V/A: 1.6 dB
» FM DEV: 41 kHz
[17] key to access the
[1] in order to select the
90 110
» LEVEL: 56.6 dBµV
FM DEV: 53 kHz
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II