Hexylon High-performance portable meter
26
select various filters Televés LTE and display the
simulation of how the system would respond with
a LTE filter inserted on its input (white graphic). Use
the selector to choice each one of the available
filters.
The selected filter is displayed in the bottom
center of the screen, there is also the option of not
selecting a filter.
5.2.- Options context menu
• Powering:
-
VDC: Selects the preamplifier powering.
5. LTE check
The presence of the LTE signal in distribution
systems DTT, can affect the quality of the TV signal.
This function makes an analisys of the LTE signal
and its influence on digital terrestrial television
signal (UHF band), and it also estimates the need to
insert a LTE filter at the input of a Digital Terrestrial
Television (DTT) system, in order to minimize
interferences that may cause the LTE signal on the
DTT signal.
5.1.- Main window
If it is necessary to insert a filter, is indicated on the
screen.
If it was not necessary to insert a filter, it will
be displayed the text “LTE Check OK” instead of
“Required LTE filter”.
On the screen are displayed simultaneously: 1-The
spectrum of the high “UHF” band (closest to the
LTE band); 2- The spectrum of the LTE down-link;
3- And the spectrum of the LTE up-link.
In addition to the recommended filter, you can
Televes filter
recommended by the
meter
Similtaneous representation of the high UHF band
spectrum (closest to the LTE band), LTE down-link
spectrum, and LTE up-link spectrum
Содержание Hexylon
Страница 2: ......
Страница 69: ...EN 69...
Страница 70: ...Hexylon High performance portable meter 70...
Страница 72: ......
Страница 73: ...901620_901621_1 23_EN...