Shredding of TVN Channels on NC+ Platform: Antenna, TurboBox, Decoder & LTE Interference Issues

Hello
The aforementioned problem of "shredding" TVN channels on the nc + platform appeared on many forums, with no response.
I also had this problem that I have been struggling with for several years.
At that time, I replaced the antenna for a larger one, the TurboBox converter and decoder for another TurboBox.
It did nothing, the signal level is 85% and the quality is 80%.
Despite this, sometimes you can't watch channels from the TVN package (tvn hd, tvn turbo, tvn24, tvn style, etc.).
I filed a complaint directly to nc +, but of course they don't see any problems.

I recently noticed a strange relationship.
If the room in which the decoder is equipped with a telephone with LTE (Orange) enabled, the TVN channel cannot be watched if the telephone is moved to another room, the reception is trouble-free.

I have a question for people who know about wave interference.
The nc + platform broadcasts TVN channels on a frequency of 11508V.
On what frequency is it sent to the decoder?
Is the LTE frequency any derivative of this frequency?
How to protect yourself against the impact of LTE transmission on TVN channel reception on the nc + platform?

Greeting
Mariusz

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maksar wrote:

Read posts on this topic.
Search option.

With all due respect, I haven't found the answer to the questions that bother me.
Is the LTE (GSM) frequency any derivative of the transponder frequency from which the TVN nc + programs broadcast?
How to protect yourself against the impact of LTE (GSM) transmission on TVN channel reception on the nc + platform?

Change the band on your mobile phone to 3G and put the LTE router (as you have it) as far as possible from the decoder. A car telephone or DECT telephone lying up to two meters from the decoder can interfere with reception of 11.508 and 12.476.

mkraska wrote:

Is the LTE (GSM) frequency any derivative of the transponder frequency from which the TVN nc + programs broadcast?

https://www.elektroda.pl/rtvforum/topic3136237.html#15272422
https://www.satclub.pl/viewtopic.php?t=17425
11508 MHz - 9750 MHz = 1758 MHz
So if you have an LTE signal nearby 1800 , there is a likelihood of interference.

mkraska wrote:

How to protect yourself against the impact of LTE (GSM) transmission on TVN channel reception on the nc + platform?

Turn off or move the interference device away from the SAT installation, use cables with very good shielding, use a converter with LTE filter.

_kli_ wrote:

use a converter with LTE filter.

The filter alone is not enough?

_kli_ wrote:

mkraska wrote:

Is the LTE (GSM) frequency any derivative of the transponder frequency from which the TVN nc + programs broadcast?

https://www.elektroda.pl/rtvforum/topic3136237.html#15272422
https://www.satclub.pl/viewtopic.php?t=17425
11508 MHz - 9750 MHz = 1758 MHz
So if you have an LTE signal nearby 1800 , there is a likelihood of interference.

mkraska wrote:

How to protect yourself against the impact of LTE (GSM) transmission on TVN channel reception on the nc + platform?

Turn off or move the interference device away from the SAT installation, use cables with very good shielding, use a converter with LTE filter.

This is probably the case, only the LTE base station (Orange) transmits in the frequency range 1760.3 - 1769.9 MHz (uplink).
So they shouldn't interfere.
The problem would be with the Polkomtel (Plus) operator, whose frequency range (uplink) coincides with 1758MHz.
I will remove all LTE transmitters from the salon and the problem (I hope) will disappear.

mkraska wrote:

I will remove all LTE transmitters from the salon

Already scared that and BTSy.

It can also interfere with radio internet and even a router in your own apartment.