Splitting Antenna Signal for Two Cyfrowy Polsat Set-top Boxes: What to Buy?

Hello,
I have a big problem, I have one antenna cable and two Cyfrowy Polsat set-top boxes in my apartment.
I would like to connect two decoders to this cable, i.e. buy a device to which I will attach the antenna cable and to the outputs, a cable to one decoder and the other decoder, previously I bought the usual splitters of these cables but nothing worked, I would like the signal to be present at the same time in both decoders.
The set-top boxes are in other rooms and I can't pull a second antenna cable.
I am asking for help, I do not know what to buy to make it work.
Thanks!

As far as I am not mistaken polsat has multiroom. You must have a switch. But one antenna cable is not enough for this. It is impossible to connect two tuners with one converter, it is about bias voltage, among others.

Moderated By telesat1:

3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

Multiband Converter.

https://www.elektroda.pl/rtvforum/topic2745316.html
#5

mihal2002 wrote:

A twin converter is enough and only one.

What does "twin" mean according to a colleague and how many cables do you need?
Added after 1 [minutes]:

MrAdrian wrote:

I have one antenna cable and two Cyfrowy Polsat set-top boxes in my apartment.
I would like to connect two decoders to this cable

And what is your friend writing about ???
Added after 2 [minutes]:

mihal2002 wrote:

19710128 wrote:
You must have a switch


And this is what? I can provide more detailed information.

http://allegro.pl/sprzet-satelitarny-multiswitche-76360?string= Telefonsource=google Przedsiębiorstwomedium=cpc&ev_campaign=Elektronika+-+RTV+i+AGD+-+Sprz%C4%99t+Satelitarny&ev_adgr=Elektronika+-AG++RTV+i+ - + Sprz% C4% 99t + Satellite + - + Multiswitch & ev_ln = multiswitch & ev_mt = & ev_content = 75997258399 & ev_n = g
The switch enables the connection of several satellite receivers to one quadro converter. Requires 4 converter-switch cables.
Added after 52 [seconds]:

Moderated By telesat1:

Warning.
3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.
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mihal2002 wrote:

I am writing to you again that it is possible.

Not me, just write to the author. How do you want to drive one LNB with two tuners? Hacking? Buddy, it's not on this forum. Please write to us all. HV polarity and different voltages.

Added after 3 [minutes]:

Mr. Moderator, please throw my posts into the trash. I can see that you are not improving your friend because he has a higher level. Thank you very much and I wish you a solution to the problem.

Hello.
I also have 2 set-top boxes in 2 rooms, the cable is 20 m to one, 8 m to the other, with one antenna.
The best solution is to change the converter.
As a colleague wrote, there are twin converters, i.e. those with two outputs for 2 satellite TV decoders.
There are also quad converters, i.e. with 4 outputs.
If someone has 2 set-top boxes, for example in CP - multiroom service, and both have the option of recording programs on an internal or an additional external drive and of course want to use this option, then a quad converter is recommended.
To record one channel and watch the second channel at the same time on one set-top box, you need 2 cables with the signal from the antenna.
Check what set-top boxes you have, or those with a HDD that enable recording broadcasts. The difference in the price of twin and quad bike is small, it is always better to have a development option.
Sample quad:
https://www.elektroda.pl/rtvforum/topic2889632.html

Read post # 1. One wire enters the apartment from the antenna.
Think what you are writing.

In that case, as Maxar wrote, there is something like a Multiband Converter, but the prices start from PLN 300, and you still have to pull the cables.
multi_band...verter.jpg (51.54 kB)You must be logged in to download this attachment.

I don't understand anything anymore, but it is possible or not?
I cannot change the converter, only one antenna cable is pulled to my apartment and I have to make it work on both decoders.

Will Multiband Converter be suitable? Will it work? If I have to buy something, I want it to work

If you can get an additional output from the converter (2 are needed, which is what you currently have and one extra) then you buy a multiband converter.
If not: forget the second decoder.

After all, I wrote that it is impossible to use one cable from the decoder.

Moderated By telesat1:

Time to think.
3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.
3.1.13. Take care of linguistic correctness and follow the rules of netiquette. Do not post messages that make it difficult to deduce what their author wanted to convey.

If you cannot pull the 2nd cable, you need to change the converter to "twin" with 2 outputs, and use the "Multiband Converter" to send the signal over one cable.

Sample diagram.

Then you mount the multiband outside the antenna.

19710128 wrote:

Then you mount the multiband outside the antenna.

"Multiband Converter" consists of 2 elements, one is mounted by the antenna, the other at home, as shown in the diagram above.

OK:
1. If I buy this unicable converter, will both decoders work?
2. If by some miracle I would change the converter to "twin", pull 2 cables from it to "Multiband Converter" and another to the flat and connect it to the second part of "Multiband Converter" and then two more to decoders, everything will work correct?

1. Did you provide the decoder models? What in the manual, support the unicable system?
2. If you miraculously exchange for twins, a miracle will happen and it will work.
Plus multiband.

If you replace the converter and lead it into the wires, nothing more is needed.
If multiband, 1 wire is enough. See diagram # 14. 2 only go from the converter to a small box that you can put behind the canopy or in the attic.

maksar wrote:

1. Did you provide the decoder models? What in the manual, support the unicable system?

As far as I know, Polsat gives only one unicable decoder for multiroom and this is Evo. The second doesn't have unicable support. Unless, by some miracle, he gives you two Evos and they want to get along with one Unicable converter (I don't know, I doubt that)
So it remains with you

maksar wrote:

2. If you by some miracle you exchange for twins, a miracle will happen and it will work.
Plus multiband.

mihal2002 wrote:

You know too little.

I am dealing with Polsat the least. And so far I did not need such knowledge. Man learns all his life. Thanks anyway
I would like to add that the update to Unicable support took place at the end of 2016