Promax HD Ranger Lite, User Manual

Page: 140 / 184

14 July 2015
3
A1.2.2
Satellite band
Analogue TV
In the measurement mode of analogue signals in the satellite band, measures
available are:
►
Level
Measurement of the tuned carrier level.
►
C/N
Ratio between the modulated signal power and noise power equivalent to
the same bandwidth (as TV standard).The modulation error ratio (MER),
used in digital systems is analogue to the Signal-Noise (S/N) ratio in
analogue systems. The carrier level is measured by a quasi-peak detector
(4 MHz BW).The noise level is measured with an average value detector
(230 kHz) and corrected to refer it to the channel bandwidth.