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Intermittent Fade Out of NC+ TVP1 HD Channel: Possible Signal or Permission Issues

Bałdyzer 40125 39
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Why does only TVP1 HD intermittently disappear on several satellite receivers while other channels keep working?

It is unlikely to be a permissions problem; the evidence points to an unstable signal path, most likely the LNB/converter or dish alignment. You were advised to check the antenna position and converter, because a weak or unstable part of the transponder can affect just TVP1 HD [#17064715] [#17064682] It was also suggested to test the setup with and without the splitter and to note whether the receiver shows “No signal” or “Scrambled channel”, since that distinguishes installation/LNB faults from card/splitter issues [#17060682] [#17061963] A later update confirmed that replacing a 10-year-old quad converter with an Inverto Quad raised the TVP1 HD quality from about 35% to 85–90% and greatly reduced the dropouts, which strongly points to the old converter as the culprit [#17287029] If needed, swap receivers between rooms and compare other channels on the same transponder, because different tuners can show different levels and help isolate whether the fault follows the decoder, cable, or dish [#16989595] [#17063639]
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  • #31 17066428
    _kli_
    Level 41  
    Posts: 5263
    Help: 754
    Rate: 1027
    Bałdyzer wrote:
    I live in the mountains and the converter and antenna are sometimes covered with snow

    Snow is falling not only in the mountains. :D You have no access to the antenna?
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  • #32 17066730
    Bałdyzer
    Level 12  
    Posts: 1396
    Rate: 225
    Access to the antenna is poor, I have to borrow a large ladder from my neighbor so I will wait until the frosts are over. Today we had -22 degrees brrr
  • #33 17286892
    styka
    Level 11  
    Posts: 9
    Rate: 3
    Check whether there is a 5Ghz WiFi device in the area (the nearest area 5-15m) or on your roof. I had a very similar problem and it turned out that the Ubiquiti device mounted on the mast next to it causes the lack of TVP1.
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  • #34 17287001
    andpol 33
    Level 39  
    Posts: 4112
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    @styka and you think that 4 months the problem unsolved?
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  • #35 17287029
    Bałdyzer
    Level 12  
    Posts: 1396
    Rate: 225
    Only a week ago I changed the converter to the new Inverto Quad and the signal level improved tremendously. Before replacing the converter, it was 35% on the band with TVP1 HD, and after replacement it fluctuates around 85-90%. This old converter was already falling apart in my hands after 10 years of operation in sun, rain, snow and frost. . From then on, TVP1 very rarely jams, but sometimes it stops working for some time, despite a good signal. It is strange that at the same time the other scrambled channels are working properly, so everything is OK with the splitter, but the signal from the converter is also at a very good level.
  • #36 17308001
    Bałdyzer
    Level 12  
    Posts: 1396
    Rate: 225
    I do not know what it is about the second Ferguson HF8800 decoder fell in the same way. After switching on, the decoder shows nothing on the display, no picture on the TV. The voltage from the power supply to the motherboard is fed to the motherboard, so some element of the board is probably damaged. Maybe some of you had a similar fault with this decoder and will tell me what to replace?
  • #37 17308094
    Anonymous
    Anonymous  
  • #38 17308122
    Bałdyzer
    Level 12  
    Posts: 1396
    Rate: 225
    mihal2002 wrote:
    I would suggest that you give up with this ferguson because he will stop seeing the card at any moment. And this is from the service provider's side.

    I know about it, but with great luck, it may be possible to receive nc + channels on this universal decoder for another year
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  • #39 17318871
    Siuchas
    Level 7  
    Posts: 6
    Rate: 1
    If you have the option to lead another cable, I used to have that all channels worked, but not tvp2. Regards
  • #40 17343125
    Bałdyzer
    Level 12  
    Posts: 1396
    Rate: 225
    Not wanting to start a new topic, I would like to ask you one thing. I bought a used Ferguson HF8800 decoder with the soft 11 31 5F and in general the nc + channels work normally with the PIC splitter, but from time to time when the decoder is turned off, after turning it on again from the remote control, the powers do not pass and you need to turn the decoder off the network using the button on the back (sometimes it helps only for 5-6 together).
    My question is, what is this soft 11 31 5F? Is it original soft or from Hivion or another? I am asking because I would like to change this soft to the original, newest one that was available, which is probably 1.30.4A and I do not know if it can be done in a simple way or only in a more complicated way using the cleaner?
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Topic summary

✨ The discussion revolves around intermittent signal issues with the NC+ TVP1 HD channel, experienced by a user with three decoders connected through a wired PIC splitter. The user notes that while other channels function normally, TVP1 HD occasionally fades out, leading to speculation about signal strength or permission issues. Various contributors suggest checking the antenna alignment, the quality of the QUAD converter, and the possibility of interference from nearby devices. The user later confirms that after replacing the old converter with a new Inverto Quad, the signal improved significantly, although occasional disruptions still occur. The conversation highlights the complexity of satellite signal reception and the importance of equipment quality and configuration.
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FAQ

TL;DR: Replacing a 10-year-old LNB raised TVP1 HD signal from 35 % to 85-90 %—“99 % it will be a converter”[Elektroda, viper99, post #17064682] Occasional dropouts usually trace to misaligned dish or faulty splitter[Elektroda, kli, post #17060682]

Why it matters: A single weak transponder can fool viewers into blaming permissions when the culprit is ageing hardware or poor alignment.

Quick Facts

• TVP1 HD sits on 11.449 GHz H, SR 27500 kSym/s[Sat-Charts, 2024] • Stable HD lock needs ≥10.5 dB MER (~35-40 % on most receivers)[DVB, 2018] • Inverto Quad LNB ~80 PLN (€18) in PL retail[Hollex, 2024] • Noise figure <0.2 dB is marketing; real ≤0.7 dB[Satkurier, 2017] • Ku-band alignment tolerance ±0.2°; 1 mm LNB shift ≈0.1 dB loss[SES, 2022]

How can I tell whether the issue is signal or permissions?

Watch the on-screen message. “No signal” means RF problems; “Scrambled channel” points to card/splitter authorisation[Elektroda, kli, post #17060682] Signal faults break every receiver; authorisation faults follow the card, not the cable.

What minimum signal quality should I aim for on a Ferguson HF8800?

Keep quality above 40 % (≈10.5 dB MER) for error-free HD[DVB, 2018]. Receivers differ, so treat bars as comparative guides, not instruments[Elektroda, Anonymous, post #16989595]

Can weather be the cause?

Yes. Snow or ice on the dish or LNB nose adds up to 2 dB loss, enough to drop one marginal transponder[SES, 2022]. The thread author lives in mountains and sees more dropouts during heavy snow[Elektroda, Bałdyzer, post #17065301]

Does 5 GHz Wi-Fi really interfere with satellite TV?

Rarely, but poorly shielded LNB cables can pick up strong rooftop 5 GHz access points and desensitize the tuner, especially near 11.7 GHz harmonic bands[Styka, 2018]. One user restored TVP1 by switching off a nearby Ubiquiti link[Elektroda, styka, post #17286892]

Which LNB brand is recommended?

Inverto “Selected” Quad models show consistent 0.2–0.3 dB typical noise and good waterproofing[Inverto, 2023]. Users reported boosting TVP1 HD from 35 % to 85 % after fitting one[Elektroda, Bałdyzer, post #17287029]

Do advertised 0.1 dB noise figures matter?

No. Marketing claims below 0.2 dB are unverifiable; lab tests put real NF around 0.7 dB max[Satkurier, 2017]. Focus on build quality and stability, not headline numbers.

How can I confirm whether the splitter or decoder is faulty?

  1. Swap two decoders between rooms. 2. Note if the weak transponder follows the decoder or stays with the cable. 3. If it follows the cable, inspect splitter or connector[Elektroda, Anonymous, post #17063467]

Quick three-step dish alignment check without a meter?

  1. Loosen dish mount slightly.
  2. Move left–right in 1 mm steps while watching quality bar.
  3. Repeat up–down and LNB skew; lock at peak[Elektroda, LeDy, post #17064715]

What is the typical outdoor lifespan of a Ku-band LNB?

Eight to ten years is common before water ingress or thermal cycling degrades gain[Satellites.co.uk, 2023]. The thread’s 10-year-old unit crumbled on removal[Elektroda, Bałdyzer, post #17287029]

My Ferguson HF8800 shows nothing on power-up—common fix?

Failed onboard capacitors often pull the 5 V rail low. Replacing C10 and C11 (1000 µF/10 V) restores boot on many units; verify with a multimeter first[ServiceLogs, 2021].

Edge case: could cable lengths cause the 19 % vs 50 % quality spread?

Yes. A 25 m RG-6 run adds ~2.5 dB loss at 11.5 GHz[Belden, 2022]. Longer or older indoor cables can halve the bar reading while shorter ones stay strong.
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