Televes Serie H-60 User Manual
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104
TV Mode
3.3.3.2.2.1.5.- ECHOES
The
ECHOES
option makes it possible to visualise the time response of the
DVB-T
channel.
This function is very useful to find out if the signal we are receiving comes from a single main
beam or if a series of secondary beams have been added with different delays and bandwidths.
This will often help to explain why the BER does not have an acceptable value if we have a good
C/N and signal level.
Within the echo visualisation mode there is a menu that allows us to select the x-axis units
between microseconds or kilometres. Depending on the unit selected, the zoom menu will allow
us to vary the visualisation window between the following values:
- ECHOES -
Units
Zoom
µS
4, 8, 16, 32, 64, 128, 256
Km
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 76.8
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