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No TVP1, TVP2, TVP3 Signal on Second TV with Passive Antenna: Troubleshooting Guide

olomajdan 6078 15
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 17448923
    olomajdan
    Level 9  
    Hello, I have a passive antenna installation. I split the signal from the antenna into two tvs and in one it receives all the channels, while in the second tv does not want to receive tvp channels (1,2, region, sport, culture ...). Usually it is so that I turn on tv on channel 1 there is tvp 1 for a short while the image is nice then after less than a minute it starts to stutter and then disappears and the message about the lack of signal pops up. Where to look for the reasons for this state of affairs?
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  • #2 17448941
    Pedros050
    Level 43  
    Hello. What type of signal splitter do you have from the antenna model?
  • #3 17448962
    barteksmrek
    Level 28  
    Is the signal level from the antenna / splitter sufficient? What is this TV?
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  • #4 17448970
    szogun
    Level 23  
    Provide at least the distance from the transmitters and the location, because you cannot guess without it.
  • #5 17448973
    olador
    Level 37  
    What distance to the transmitter? - the signal may be too weak to be split between 2 TVs.
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  • #6 17448989
    barteksmrek
    Level 28  
    olador wrote:
    What distance to the transmitter? - the signal may be too weak to be split between 2 TVs.

    Let me remind you that this is a digital signal.

    Added after 39 [seconds]:

    If it's ok on one tv, it shouldn't be a problem on the other.

    Added after 38 [seconds]:

    There are different methods of finding a fault.

    Added after 3 [minutes]:

    Do you have ektenia squares on other programs? Swap the cables in the splitter. See what happens. Do you have the option of replacing cables or connecting with a new cable for shortcuts?

    Added after 1 [minutes]:

    Is the antenna external or internal?
  • #7 17449064
    TELMOR_PL
    Level 32  
    It all depends on the difference in cable lengths for TV and the type of splitter. Maybe there is an unbalanced damping. Enter your location, the antenna (type, model, symbol) and where it is installed - balcony, attic, roof, ... and on what floor ...
  • #8 17449087
    LeDy
    Level 43  
    barteksmrek wrote:
    olador wrote:
    What distance to the transmitter? - the signal may be too weak to be split between 2 TVs.

    Let me remind you that this is a digital signal .

    So what if it's digital? First you write this and then ask for the rest?
    Even if "weak" one device will still work and the other will not.
    The rest is up-to-date, that is - what does the installation look like and where and from where, what devices, what are they separated, what signal levels etc.
  • #9 17449100
    barteksmrek
    Level 28  
    LeDy wrote:
    So what if it's digital?

    A lot. Two televisions side by side. DVBT antenna. Splitter. One tv ok the other no. Why?
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  • #10 17449104
    _kli_
    Level 41  
    olomajdan wrote:
    I have a passive antenna installation. I split the signal from the antenna into two TVs

    Little data. You need a detailed description of the installation and the location of the collection point.
    @olomajdan - whether this subject applies to the same installation or location ?
  • #11 17449207
    olomajdan
    Level 9  
    _kli_ wrote:
    @olomajdan - does this topic refer to the same installation or location?


    https://www.elektroda.pl/rtvforum/topic3402137.html

    this applies exactly to this installation and location, only two TV sets are currently connected, one on the ground floor (the antenna cable is much longer to it, but this TV is fine, I will add that this cable from the splitter is not connected), I used the splitter as recommended and colleagues in the previous topic of the telmor company. the antenna is placed on the ceiling height of the 1st floor. I will add that currently I do not use the second branch on 3, only instead of a branch there is a barrel connecting two antenna cables and the other two are not used. I will just add that everything worked fine and the situation worsened when the first splitter (on 2), which was originally located at 250 centimeters of the cable, moved closer to the antenna from the antenna and is now mounted 15 cm under the antenna on the mast.
  • #12 17449213
    barteksmrek
    Level 28  
    Flooded damp manifold. However, with the dvbt signal, it still does not convince me why TV is ok in one and not in the other. Could it be such a large suppression. Put the cable from the antenna in and there is a splitter. Try to keep the length of the cables at least similar.

    Added after 1 [minutes]:

    _kli_ wrote:
    Little data. You need a detailed description of the installation and the location of the collection point.

    For what? This is an ordinary antenna and regular television does not require satellite data.
  • #13 17449242
    olomajdan
    Level 9  
    the manifold is protected against moisture. the location is the Royal Maidan, Kolbuszowa poviat and the antenna is set to Rzeszów "Baranówka". finds 21 channels
  • #14 17449303
    pidar
    Mass storage specialist  
    barteksmrek wrote:
    However, with the dvbt signal, it still does not convince me why TV is ok in one and not in the other.

    The TVs differ, for example with the sensitivity of the head. Swap televisions for the test. :wink:
  • #15 17449461
    LeDy
    Level 43  
    barteksmrek wrote:
    LeDy wrote:
    So what if it's digital?

    A lot. Two televisions side by side. DVBT antenna. Splitter. One tv ok the other no. Why?

    And then what? And what is that side-by-side combination to suit you?
    Didn't he read it?
    Quote:
    Even if "weak" one device will still work and the other will not.

    Do you think that how digital is so smart that it can recognize two connected receivers and add more to those who have even weaker sensitivity?
    Quote:
    Try to keep the length of the cables at least similar.

    Is it supposed to cut cables for you, move equipment close to you to convince you of something? And if they are different, you don't know what to do with it? If the signal is big enough, it doesn't matter if it is 5m or 20m.
    Quote:
    For what? This is an ordinary antenna and regular television does not require satellite data.

    It's just plain not digital?
    Where did you read the satellite here? These are the data that others are asking for, it has no meaning in the reception, but it is only digital?
  • #16 17449700
    _kli_
    Level 41  
    olomajdan wrote:
    the location is the Royal Maidan, Kolbuszowa poviat and the antenna is set to Rzeszów "Baranówka". finds 21 channels

    Baranówka (azimuth approx. 160 °) is the local illumination of mux-3 for Rzeszów and the signal does not reach you. The azimuth to the south is Sucha Góra.
    If you are receiving the signal from muxs 1-3, you should have 23 programs, not 21.
    olomajdan wrote:
    tv does not want to receive tvp channels (1,2, region, sport, culture ...)

    I suspect that you tune the receivers automatically and then they can program a weaker and worse quality mux-3 signal from Giedlarowa or Tarnobrzeg (sheet 26). If the antenna is set to Dry Mountain, scan manually k.29. The remaining muxs are sheets 32 and 52
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Topic summary

✨ The discussion revolves around troubleshooting signal issues with a passive antenna setup where one TV receives all channels while the second TV fails to consistently receive TVP channels. Users inquire about the type of signal splitter, signal strength, distance to transmitters, and the installation specifics, including cable lengths and antenna placement. Suggestions include checking the splitter type, swapping cables, and ensuring similar cable lengths to mitigate signal loss. The conversation highlights the importance of the antenna's orientation towards the transmitter and the potential impact of different TV sensitivities on reception quality.
Generated by the language model.

FAQ

TL;DR: 23 channels expected, not 21; "scan manually k.29." If TVP drops on one TV after splitting a passive antenna, align to Sucha Góra and manual‑scan MUX‑3. How to fix: point correctly, scan k.29/32/52, and verify 23 programs. For DVB‑T viewers around Królewski Majdan/Rzeszów. [Elektroda, kli, post #17449700]

Why it matters: It fixes TVP MUX‑3 dropouts on a second TV without unnecessary hardware changes.

Quick Facts

Why does one TV lose only TVP channels after splitting a passive antenna?

Your antenna faces Baranówka, a local MUX‑3 fill that doesn’t reach you. Auto‑scan may also lock MUX‑3 from Giedlarowa or Tarnobrzeg, which is weaker. Point to Sucha Góra and manual‑scan channel 29 for MUX‑3. You should then reach the full 23 programs. [Elektroda, kli, post #17449700]

How do I manually tune MUX‑3 (TVP) correctly?

Follow these steps:
  1. Point the antenna toward Sucha Góra (south from Królewski Majdan).
  2. Open manual tuning and select channel 29 for MUX‑3.
  3. Save, then scan channels 32 and 52 for the remaining multiplexes. [Elektroda, kli, post #17449700]

Should I aim at Baranówka or Sucha Góra?

Aim at Sucha Góra. Baranówka’s MUX‑3 is a local filler and does not reach Królewski Majdan. Baranówka sits at approximately 160° azimuth relative to Rzeszów, but coverage there is limited. Aligning south toward Sucha Góra gives robust MUX‑3. [Elektroda, kli, post #17449700]

Auto‑scan finds only 21 channels; what am I missing?

You are likely missing MUX‑3 or locking a weak variant. With MUX‑1/2/3 present, you should see 23 programs. Manually scan channel 29 for MUX‑3, then check signal quality. If needed, realign toward Sucha Góra and rescan channels 32 and 52. [Elektroda, kli, post #17449700]

Does cable length and splitter placement matter?

Yes. Unequal cable runs and splitter type can unbalance attenuation between outlets. That can push one TV below the demodulation threshold. “It all depends on the difference in cable lengths for TV and the type of splitter.” Keep runs comparable and use a proper RF splitter. [Elektroda, TELMOR_PL, post #17449064]

How do I test whether the splitter or a cable is bad?

Swap outputs at the splitter and observe whether the fault follows the port. “Swap the cables in the splitter. See what happens.” If possible, connect a short, known‑good cable directly from splitter to the failing TV. That isolates cable versus device issues quickly. [Elektroda, barteksmrek, post #17448989]

Why did moving the splitter closer to the antenna make reception worse?

Your report shows reception degraded after relocating the first splitter to 15 cm under the antenna. Restore the previous position temporarily and retest. Check every outdoor joint and the barrel connector you added. Reversing that change is the fastest isolation step. [Elektroda, olomajdan, post #17449207]

Can tuner sensitivity differences make one TV fail while the other works?

Yes. “The TVs differ, for example with the sensitivity of the head. Swap televisions for the test.” Move the working TV to the failing outlet. If it also fails, the path is at fault. If it works, the other TV’s tuner likely needs a stronger signal. [Elektroda, pidar, post #17449303]

Is it normal that one TV works and the other doesn’t with a weak signal?

Yes. One receiver can decode a marginal signal while another drops out. As one pro put it, “Even if ‘weak’ one device will still work and the other will not.” Improve alignment and MUX selection first, then revisit amplification. [Elektroda, LeDy, post #17449087]

What frequencies or channels should I scan in this case?

Scan MUX‑3 on channel 29. Then scan the remaining multiplexes on channels 32 and 52. Avoid relying on auto‑scan if it locks distant MUX‑3 from Giedlarowa or Tarnobrzeg. Manual scanning ensures the intended transmitter’s parameters are stored. [Elektroda, kli, post #17449700]

I’m in Królewski Majdan and aimed at Baranówka; can that work?

Baranówka is a local MUX‑3 illumination for Rzeszów and does not reach your location reliably. Pointing at it yields intermittent TVP, especially after splits. Aim south to Sucha Góra and rescan as manual channels 29, 32, and 52. [Elektroda, kli, post #17449700]

Why does TVP start fine then stutter and drop?

Borderline lock on the wrong or weak MUX‑3 causes initial decode, then errors and dropouts. Realign to Sucha Góra and perform a manual scan on channel 29 to store the correct MUX‑3. Verify you reach 23 programs after scanning. [Elektroda, kli, post #17449700]

What information should I provide to get accurate help?

Share your exact location, antenna type and model, mounting place, floor height, splitter type, and cable lengths. This reveals coverage, path loss, and unbalanced damping risks. “Enter your location, the antenna (type, model, symbol) and where it is installed.” [Elektroda, TELMOR_PL, post #17449064]
Generated by the language model.
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