GUIDE TO INSTALLATION AND OPERATION
3.4.3 Tuner panels
The Tuner panel that appears will match the tuner type
installed in the IRD-3111.
3.4.3.1 The Tuner ATSC panel
(IRD-3111-VQ models only)
This panel identifies the tuner type and demodulation type,
and provides status icons for RF Signal Presence and RF
Signal Lock.
Incoming signal quality is measured using two parameters:
•
BER (bit error rate)
•
CNR (carrier-to-noise ratio)
The signal status is indicated by a color-coded bar graph.
•
Green = satisfactory
•
Yellow = marginal
•
Red = poor
Note that this is NOT a signal level meter. An overloaded
input will result in errors that reduce the quality, and the
graph will show the signal status as Poor, with the bar red
and on the left side of the display.
Use the
Select Channel
pulldown to select a channel from those available in the signal, or use the Scan button to
scan through the channels to find a program stream.
The
Frequency
data box shows the frequency of the currently-selected channel.
3.4.3.2 The Tuner DVB-S2 panel
(IRD-3111 DVB-S2 models only)
Tuning Type
Options: DVB-S, DVB-S2
The proper FEC detection settings are dynamically assigned
BER
: shows the Bit Error Rate
Demod Type:
QPSK for DVB-S tuning
Selectable for DVB-S2 tuning:
Options: QPSK, 8PSK
Es/No:
shows the mean symbol energy to noise ratio of the tuned signal
Signal Strength:
the colored bar graph and superimposed measured value indicate the strength of the incoming
signal for demodulation.
•
Green:
In spec
•
Red:
Out of spec
Figure 3.4 Tuner ATSC panel
IRD-3111 |
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