No Mux Signal 8: Łódź-Zygry Transmitter & Mesh Antenna for UHF MUX 1, 2, 3 - Łódź Komin EC-4

Last year, I installed a new (mesh) antenna for UHF signal reception - MUX 1, 2, 3 to receive from the Łódź Komin EC-4 transmitter, not knowing that the Łódź - Zygry VHF - MUX 8 transmitter will be activated later. Currently, we want to receive new programs I installed an antenna crossover (75 Ohm impedance; Inputs: VHF and UHF; 1 DC max 30V / 400MA output; Frequency range (MHz) VHF 47-230MHz UHF 470-790MHz; Transition suppression 8; Separation between inputs : dB> 20) and then connected an additional antenna directed at the Łódź - Zygry transmitter. And to my surprise from the VHF antenna there is not a bit of signal - before that I connected it to the entire installation before I checked from the ground at a maximum height of 2-3 m whether there was a signal, it was. It was a few days earlier but the programs worked without any problems. On the page emimaps.emitel.pl they say that it should work without any problems. Other MUXs work without a problem although according to this site MUX 3 should not be received at all and MUX 1, 2, after amplifying the signal and I use only the balancer. I also receive a weak signal from the transmitter located near Konin - Żółwieniec but this signal is often broken. I am currently in Łódź and I was checking the signal in the city center and it turns out that there is also a problem, like the decoder finds the whole mux 8 but there is no picture or sound at all.
In the attachment I am sending a very simplified installation diagram which I made, I will add that I am not a technician so I describe everything literally without professional names. Of course, my request for help concerns the place which is marked on the map.

Miadwel wrote:

and then I connected an additional antenna directed to the Łódź - Zygry transmitter. And to my surprise from the VHF antenna there is not a bit of signal - before that I connected it to the entire installation before I checked from the ground at a maximum height of 2-3 m whether there was a signal, it was.

The question is what is the additional antenna on VHF because from the drawing it looks like the grid and for VHF it is not very suitable - especially for the vertical (I did not check how you have vertical or horizontal). The second thing is whether there is an amplifier in it because if it is a question is it powered? Because if it's not

Miadwel wrote:

And to my surprise from the VHF antenna there is not a bit of signal - before that I connected it to the entire installation before I checked from the ground at a maximum height of 2-3 m whether there was a signal, it was.

then you should not be surprised

VHF signal is transmitted horizontally. There is a balancer in each antenna, so no power supply is needed.

Maybe in such a system you need to install an amplifier ??
If so, how and how to integrate it in this installation so that everything works properly ??

I have an LNA177 amplifier from another antenna. Could he help me in this case ??

Unfortunately, I don't know anything about electronics. I do not know if it will be able to power this amplifier with my installation (in particular, it is about the adder, because it has a diagram that shows that there should be current flow on UHF and not VHF - unless I read it incorrectly ).

In my installation, exactly the same splitter and adder are installed as in the pictures, while one antenna (VHF [Łódź-Zygry]) is the same as in the graphics, while the other is twice as large and works properly.

Darek.S wrote:

also mesh and for VHF it is not very suitable -

better would be directional on VHF. In addition, check whether you have made a mistake such as shorting the braid to the vein.

Miadwel wrote:

There is a balancer in each antenna

What is the balancer on the VHF antenna?

Yes, I checked all connections, I didn't find any irregularities, so it's not it (unless the cable is damaged inside).

The balancer I used was BADMOR K6-69, so you advised me in a store with antennas.