Zeroing Function - Safran CORTEX RTR NeXt Series User Manual

6.3

Zeroing function.

Activating the zeroing function generates the following actions:

The receiver measures the noise levels at the inputs of the receiver channel 1 and 2.

The receiver uses this measure to balance RF gain impairment at the input of the Pre D combiner. This
action compensates the gain difference between channel 1 and channel 2 (LNAs, RF cable losses...) up
to 10dB.
Do not forget :
Before activating the zeroing function ,

Be sure that there are no carriers inside the intermediate frequency filter

Be sure that there is only noise

Be sure that the antenna points toward a clear sky
© Safran Data Systems – IMP000074 e14r1
Radio Telemetry Receiver
User's Manual
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Ref. D104004
Is.Rev 07
Previous Ref.: DTU000567
Date: 21/06/2021
Zeroing activation by
clicking on this button
Safran Data Systems
.
Page 59