Spectrum Analyser - Promax TV EXPLORER HD ISDB-T/T B Manual De Instrucciones

USER'S MANUAL TV EXPLORER
Figure 49.- Constellation Diagram. DVB-S2 (8PSK) signal.
The transmission quality is visualised in a qualitative way using a colour range for
the symbol density concentrated in a certain area. This colour coding goes from
black (no symbols) to red (maximum density), and runs from blue to yelllow in
ascending order.
A greater dispersion of the symbols indicates greater level of noise or worse signal
quality.
If concentration of symbols or noise appears is indicative of good carrier/noise ratio
or absence of problems as phase noise, etc.,.
5.16

Spectrum Analyser

The Spectrum Analyser mode allows the user to discover the signals present in
the frequency band in quickly and easily and to make measurements at the same time.
To select it press
the next figure.
10/2012
HD ISDB-T/T
B
[13] key. The monitor will show a picture like the one described in
NOTE
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