Demodulators; Supported Demodulation; Fm Discrimator Gain Adjustment - Safran CORTEX RTR NeXt Series User Manual

6.8

Demodulators

6.8.1

Supported demodulation

Refer to [AD4] for the complete list of available demodulator.
6.8.2

FM discrimator gain adjustment.

The FM discriminator gain depends on the IF filter bandwidth.
In the following example, the simultaneous subcarrier mode has been selected:

Main channel features
IF filter  13 MHz
-
- Main PCM
In the picture here after, the FM discriminator gain of the demodulator n°3 has been set to nominal. The
IF filter bandwidth is 13 MHz, but as the main channel FM bandwidth is only1 MHz, the signal level at
the bit sync input is very low.
© Safran Data Systems – IMP000074 e14r1
Radio Telemetry Receiver
User's Manual
 1 Mbps
This document is the property of
It cannot be duplicated or distributed without expressed written consent.
Ref. D104004
Is.Rev 07
Previous Ref.: DTU000567
Date: 21/06/2021
Eye Diagram at the
input of the bit-sync 3.
FM Discriminator gain
set to nominal
Safran Data Systems
.
.
Page 69