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When all TFT are displaying graphical display, it is possible to do a quick selection of the
type of information to be displayed.
First, by using the
upper left corner indicates the active display.
Then by using the
constellation)
5.1.3
Signal strength and data quality
In addition, signal strength is available for each channel, and data quality for each demod/bit-
synchronizer (see Figure 8, Figure 9, Figure 10).
The signal strength (the bar graph on the left) represents the level detected at the RF (or IF) input
front end, from -110dBm to +10dBm. It switches from dark to bright blue when the signal detected is
above the threshold represented by the grey arrow.
The data quality (the bar graph on the right) represents the estimation of the bit decision quality
made by the demodulator/bit-synchronizer. This value is rated from negative value up to 20. It turns
red below 5, orange between 5 and 10, yellow between 10 and 15, and green above 15. It is derived
from a Eb/N0 estimation.
For the Combined channel display (see Figure 13), no Signal Strength is available, only Data Quality
is displayed. If Adaptive Equalizer option is enabled, a "equalizer quality" status bar is displayed on
the left.
© Safran Data Systems – IMP000074 e14r1
RX-1 Compact Operational Receiver
User's Manual
key, select the screen you want to change. A small triangle in the
key, select the type of display (spectrum, eye diagram or
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It cannot be duplicated or distributed without expressed written consent.
Ref.
D104047
Is.Rev
08
Previous Ref.:
-
Date:
21/06/2021
Safran Data Systems
.
Page 47
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