Zgemma H9s OpenAtv Decoder: Trimming Issues on Eleven Sport Channels - SNR Fluctuations & Fixes

Question

I have a Zgemma H9s decoder from OpenAtv I noticed that on the tracer 114888H275000 3/4 where Eleven sport channels are often cut I checked 2 decoders the same on each one. I entered the antenna settings, the SNR jumps strangely on this transmitter, 72% -45%, it can even at 0spasc per second....

Coronus · Answer

I think about it myself. Previously, I had a Zgemma H.2S and I watched a lot of jams. After connecting the H9S
jams also happen. I rather exclude the guilty equipment because I gave the first one to the other person and she confirmed that
it works for him. But does owe a converter that's hard for me to say?

If the jams were to concern selected channels, I will start to note them down.

Anonymous · Answer

There may be interference from LTE, radio internet or anything to do with the radio (in the apartment or outside) - routers, modems, etc ...

LeDy · Answer

Internet interference is just disrupting transponders between 11393-11508.

djpablo1980 · Answer

Anyone had a similar problem? I can move the modem further, but the router must be close to the set-top box too many devices connected

Anonymous · Answer

But it's probably the router that sows wifi, so it could potentially be responsible for the interference. Disconnecting the router "from the power" eliminates interference?

If so - the first thing - the SAT cable going to the set-top box - should have the highest possible screening factor .. Is it a cable directly from the SAT antenna or from the RTV socket? If from the socket - made or bought?

If it is not a question of the RF cable, then you would have to find a compromise for the location of the equipment or other "hard" solution to the problem - that is, either change the location of the router (it is possible that just turning it can help) or combine with the location of the decoder, changing the wifi band, etc ..

LeDy · Answer

For a test, move the decoder away from the router, distance the cable to the decoder max. how much you can from the router.
They already wrote on the forum that something was done on the air, but they did not associate it with interference.

Coronus · Answer

And is the cable directly from the antenna (without the socket), sticking out of the wall and rolled up a few meters, and it lies next to the decoder and with a tangle of other cables. This may affect the interference?
The router is behind the wall, but Zgemma has a wifi access point.

It is also worth considering the devices we have connected to the home wifi network.
Some WiFi cards, as well as several, may interfere with the work of others and cause such interference as well.

Anonymous · Answer

Maybe. If there is already such a supply of cable, it must be uncoiled but loosely thrown in a tangle. But its length does its job anyway and is a long antenna for interference, especially if it is a lower quality cable. Cable type, what is it printed on ?. You should cut the cable, install an RTV socket, and approach the decoder with the shortest possible section of the antenna cable with the greatest possible shielding. Probably not only Zgemma. And some transmitter can sow on the cable most effectively. It's a different story. WiFi transmission protocols take care of these things and try to organize it all to minimize the effects of conflicts between devices / networks.

djpablo1980 · Answer

I have already figured out that the modem connected to the router is causing interference ...
It turns out I have to move the router to another place,
And let everything go over wi-fi, now I had everything plugged into the cable (tv, zgemma, and PS4)
Thanks gentlemen for your help

Coronus · Answer

RG6 074M

Anonymous · Answer

RG6 is the standard type of television (SAT) cable, kind of like a sedan in cars. With such a definition, it is more likely that it is a cable with moderate parameters. 074M is a yardstick.

Coronus · Answer

What cable do you propose? Because soon I will be exchanging for twin, it will be an opportunity sedan? And what will Rolls Royce be like?

Anonymous · Answer

Definitely Abrams or Leopard ... ;) Seriously - RG-6 class cable, but with shielding > 90dB and even better > 100dB . For example, Triset-113 When used outside - a cable with an outer PE sheath (black), if the cable is made of AL, it should additionally have a gel protecting against moisture.

Coronus · Answer

I also have this: CATV - 2018 - 18258 - TFC - CCS / AL - SERIES 59 - 197132 M CPR / CE EuroClassification Eca Will it be good?

Anonymous · Answer

This one is not. Good producer, but not the cable, especially for SAT.

Coronus · Answer

Found it on a dipole store. Yes, this is it! Yes, in my case it was about organizing the bundle of cables and devices, including the cables coming to the tuner. Thanked for all the advice.

Pat_Fal · Answer

In my case, the Zgemma H9S UHD 4K WiFi was clipping the image on all channels and the fault was caused by the fact that the power supply from the set-top box
too close to the R / SAT / TV flush-mounted connector.

Zgemma H9s OpenAtv Decoder: Trimming Issues on Eleven Sport Channels - SNR Fluctuations & Fixes

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Post #11

Post #12

Post #13

Post #14

Post #15

Post #16

Post #17

Post #18

Topic summary