Deteriorating DVB-T Channel Reception on Samsung Smart TV with Telmor ASR-860 Antenna

Hello, I have a Samsung TV with smart TV, a Telmor ASR-860 antenna mounted on the chimney (in Luboń, next to Poznań) and a newly installed antenna cable from the market.

I started my dvb-t game with a Sharp LCD TV without mpeg4, I had a viva tuner and a power supply for the antenna in the set.
After buying a Samsung Smart TV, I removed the power supply and tuner, all muxs worked, but from time to time MUX2 programs were missing.
I liquidated the power supply because it was damaged (cracked housing) and the antenna tip was large enough to not fit the TV (due to the construction of the TV housing).

Recently, I did a rearrangement in December and the TV ended up on the wall, after installing a new antenna cable, the situation on MUX2 improved, and even after another channel scan, the mux8 worked.

After two weeks, problems with MUX2 and MUX1 started, I bought a power supply for PLN 10 in an electronics store and the situation after installing the power supply was even worse. After purchasing the original power supply, all Muxes have run off from Telmor.

I disassembled the power supply, I earned a new eFke on the roof next to the antenna and after this operation MUX3 returned.

He admits that because of laziness I did not protect the EF with silicone, at least it was done in the past (I wanted to do it at a later time), in addition, smoke from the chimney is blowing on the antenna, which will be damp, not to mention the fact that it was raining heavily and there were strong winds.

Summarizing all this, I wonder if the reason will not be a poor quality cable?
Isn't it also the fault of the moisture on EFC?
Why does the power supply cause poor reception of programs?

I would like to add that the antenna is probably directed towards the transmitter Piątkowo, Karolin or Wągrowiec, it simply looks to the north-east, more to the north.

Thank you in advance for your help.

An unpowered amplifier works as a signal attenuator.
With such a short distance from the transmitter, the amplifier is not needed.
I bet that your receiver is distorted with too strong a signal and hence problems.

Receiver overloaded? Why was it good before?
MUX3 works on channel 27, due to the fact that the antenna is aimed at the transmitter in Wągrowiec 77 km from the antenna, I have a transmitter in Śrem 27 km closer, I planned to set it up in Śrem.
The antenna has a good 10 years, I bought it together with the house, I planned to replace it with a passive one, it does not suit me that everything worked well until now, and now the situation has worsened.

Added after 5 [hours] 17 [minutes]:

Today I earned a short telmor tt-113 wire, ran it through the window just to check it, it turned out that after re-tuning the channels everything works fine.

It is the cable that is to blame, the question is why ?? The damp got him ??

You have a good antenna and you do not need to replace it with another one (unless it is drastically corroded under the influence of 10 years of exposure to exhaust fumes from the chimney and humidity and it even breaks into parts. All DVB-T programs with RTCN-Śrem are broadcast in horizontal polarization. including MUX-9 and this antenna will pick them up perfectly. Since the antenna is next to the chimney, which causes corrosion when smoking in humid conditions, it definitely needs to be removed from the roof for maintenance. In the future, I would recommend mounting the antenna in a place not exposed to the damaging effects of exhaust fumes. from the chimney.

Luboń is very close to a strong transmitter RTCN in Śrem and the signals in this antenna, with the preamplifier installed in the antenna box, are too strong (if the antenna is directed exactly in the direction of the transmitter). Therefore, it is necessary to replace the antenna preamplifier with an antenna balun suitable for this antenna. If in Poznań it is not possible to purchase such a balun (made by telmor), then another, ordinary antenna balun should be converted to the III-IV-V range. The conversion consists in the appropriate cutting of the rectangular plate of an ordinary balun so that it fits into the round box of the ASR-860 antenna. If you do not feel strong enough to convert the aforementioned impedance transformer, and you have the option of using the already existing antenna at a greater distance from the transmitter, I would suggest buying a second antennas-ASR-860 in passive version ie without a preamplifier and with a factory-installed balun. Earlier, you can buy an adjustable antenna attenuator (with the agreed return to the store) and check whether partial attenuation (on the TV or tuner antenna input) of the signal from the existing antenna with the power supply connected will improve the reception of all Muxs. It is not a sure solution, as too strong a signal already at the input of the antenna preamplifier may cause distortions of the signal in the preamplifier and attenuating them at the antenna input of the TV will not bring the expected effect

Both a signal that is too strong (additionally amplified with a preamplifier in the antenna) and a signal that is too weak (weakened with a non-powered antenna, i.e. an antenna preamplifier not working) may cause interference or lack of reception of one, two or all multiplexes. If the antenna is not positioned exactly in the direction of the transmitter, the signals received by it will be weakened to a different degree and with too strong and too weak signals, some Muxs may be correctly received and others not. Changes in the propagation of the DVB-T signal depending on changes in weather conditions also change the level of DVB-T signals reaching the external Viva tuner or the tuner inside the TV. This would explain the situation, that both with the power supply of the antenna preamplifier and without it, the reception of programs was possible, as it were.

Warning! A de-energized antenna preamplifier will not replace a signal attenuator. The attenuation of a non-working preamplifier is undefined and different for different preamplifiers. An unpowered preamplifier on one frequency can attenuate a signal strongly, on another - weakly, and on yet another - very strongly. Such irregular attenuation and its range can vary fromdepending on the weather conditions affecting the antenna (moisture, frost, soot).
However, there are antenna preamplifiers for sale with the so-called "by pass", which are intentionally designed to enable proper conduction of signals after turning off the power of the amplifying element (transistor) eg. asr IQ LTE PROTECTED SAW

MluMlu wrote:

Why was it good before?

It wasn't good because ...

MluMlu wrote:

After buying a Samsung Smart TV, I got rid of the power supply and tuner, all muxs worked, no less every now and then I ran out of MUX2 programs

As mentioned above

wiertacz wrote:

An unpowered amplifier works as a signal attenuator

and you still received, so the signal is very strong.

wiertacz wrote:

I bet that your receiver is distorted with too strong a signal and hence problems

MluMlu wrote:

Receiver overloaded?

Yes, since you have some reception without the power supply, and not with the power supply.

mihal2002 wrote:

Use a passive antenna

The ASR can be converted into a passive antenna, but it requires the replacement of the amplifier with a balun dedicated to this antenna. To do this, the antenna needs to be broken down into almost prime factors. In the several years of ASR, it may be difficult or impossible due to corrosion.

MluMlu wrote:

MUX3 works on channel 27

MluMlu wrote:

the antenna is probably directed towards the transmitter Piątkowo, Karolin or Wągrowiec

And you're probably picking up from Piątków.

MluMlu wrote:

I planned to set up in Śrem

Ultimately, mount the passive antenna and do so.

_kli_ wrote:

It wasn't good because ...

MluMlu wrote:
After buying a Samsung Smart TV, I removed the power supply and tuner, all muxs worked, but from time to time MUX2 programs were missing

I meant the old Sharp with the dvb-t tuner and power supply, this configuration worked very well, for 2 years nothing was missing, the picture was clear.
It was the years 2012-2015 in June. I have not seen what is the problem with the antenna and DVB-T reception.

It was only on Samsung and smart TV that sometimes the MUX2 cubes appeared, which made it impossible to watch, I exaggerated with escaping programs.

I would like to emphasize once again that today I replaced the cable, I also installed an RTV socket and I no longer have a problem with receiving all MUXes.

Added after 6 [minutes]:

_kli_ wrote:

And you're probably picking up from Piątków.

only that when you look at the details of the transmitter on Friday at dvbtmap.eu, Piątkowo only broadcasts MUX3 as well as Wągrowiec, then the Gniezno-Chojna transmitter is in this direction and this transmitter is already broadcasting on all muxs.

MluMlu wrote:

MUX3 works on channel 27, due to the fact that the antenna is aimed at the transmitter in Wągrowiec, 77 km from the antenna

You can receive the "main" mux-3 signal on k.27 from Piątków (20 kW), but still from the back - on the same channel - a very strong signal from Śrem (110 kW) is received, which somehow affects the reception. Wągrowiec (0.05 kW) and Chojna (23 kW) give mux-3 on k.31.
Check on what channels you receive the other muxs, you will know the answer from which transmitter they come from:
Śrem -> mux-1 / k.23, mux-2 / k.39, mux-8 / k.7
Gniezno -> mux-1 / k.42, mux-2 / k.43, mux-8 / k.9

I will check, because this is how you can predict coffee grounds ;)

For now, it works, and when it gets warm, I will think about remaking ASRki or buying a new passive antenna.

Out of curiosity, what I do not understand, I will add that nearby, just like mine, two more antennas were mounted in the same direction
Added after 30 [minutes]:

_kli_ wrote:

You can receive the main "mux-3 signal" at k.27 from Piątków (20 kW), but still from the rear - on the same channel - a very strong signal from Śrem (110 kW) arrives, which somehow affects the reception. Wągrowiec (0.05 kW) and Chojna (23 kW) give mux-3 on k.31.

Right, pulls Muxy backwards checked
Added after 1 [minutes]:
Since everything works on the new cable, can I direct this antenna to Śrem? :)

If the signal is strong and the preamplifier works as an attenuator, will it be in the way?

MluMlu wrote:

the preamplifier acts as an attenuator

It works like a silencer when you cut it off. But on the other hand, the amplification of a strong signal will "clog" your head and you will not receive anything. You just have to eliminate the amplifier for optimal signal strength.

_kli_ wrote:

It works like a silencer when you cut it off.

And it is also not powered currently

MluMlu wrote:

And it is also not powered currently

It was already about

Jerzy Cieślański wrote:

Warning! A de-energized antenna preamplifier will not replace a signal attenuator. The attenuation of a non-working preamplifier is undefined and different for different preamplifiers. An unpowered preamplifier on one frequency can attenuate a signal strongly, on another - weakly, and on yet another - very strongly. This irregular attenuation and its extent may vary depending on the weather conditions affecting the antenna (humidity, frost, soot coverage).