FAQ
TL;DR: 66% strength can be too low; "If 66% is strength, it is not enough." For Cyfrowy Polsat users with 'No signal' on TVP 2 HD or Eurosport 2 HD, inspect alignment, LNB, and especially old coax. [Elektroda, kli, #17094563]
Why it matters: It helps you fix per‑transponder HD dropouts fast without wasting time on pointless rescans.
Quick Facts
- Symptom profile: On Polsat HD, 66% strength and 83% quality; on TVP 2 HD and Eurosport 2 HD, 0% and “No signal.” [Elektroda, markiszon, post #17093445]
- Fix that worked: Replacing an old coax run immediately restored both HD channels and boosted readings. [Elektroda, markiszon, post #17155638]
- Install detail: Approx. 15 m old white coax routed under facade in the case. [Elektroda, markiszon, post #17094889]
- Tuning: No manual retune needed; run Cyfrowy Polsat’s channel search to load the current list. [Elektroda, andpol 33, #17093939]
- Root cause hint: A faulty LNB can drop a single transponder; swapping it is a quick diagnostic. [Elektroda, LeDy, post #17094799]
Why do some Cyfrowy Polsat HD channels show "No signal" while others work?
Different channels sit on different transponders. Misalignment, wrong LNB skew, a deformed dish, or interference can hurt only some frequencies. A damaged LNB or decoder can also cause selective failures. Check hardware first before software fixes like rescanning. [Elektroda, kli, #17094563]
Do I need to manually tune TVP 2 HD or Eurosport 2 HD?
No. Use Cyfrowy Polsat’s channel search to load the provider list. Manual tuning is not required for these channels. If they still fail, the issue is RF (dish/LNB/cable), not the channel list. [Elektroda, andpol 33, #17093939]
What actually solved the forum case like mine?
Replacing the old coaxial cable fixed it. Signal strength and quality improved, and both TVP 2 HD and Eurosport 2 HD started working. The user used a new store‑bought cable. That points to aging or damaged coax as the root cause. [Elektroda, markiszon, post #17155638]
Is 66% signal strength enough for stable HD on a PVR HD 7000?
"If 66% is strength, it is not enough." Increase margin by refining alignment and reducing losses. Low strength leaves some transponders with zero quality. Improve cabling, connectors, and dish pointing to stabilize HD services. [Elektroda, kli, #17094563]
Could a bad LNB block only one transponder?
Yes. "The converter was guilty and did not receive one transponder." Swap the LNB to confirm quickly. LNB faults can be frequency‑selective, so one transponder fails while others remain fine. Replace the LNB if the symptom disappears with a spare. [Elektroda, LeDy, post #17094799]
Should I factory reset my Polsat decoder when channels vanish?
You can try, but it will not fix a bad LNB or cable. One user reset to defaults and nothing changed, because the converter was damaged. Do hardware checks first to avoid wasted time. [Elektroda, arekopo, post #17097700]
How do I view MER or advanced signal metrics on the PVR HD 7000?
Press and hold the red button on the remote to show more details, including MER. Use MER while adjusting the dish or checking cabling. Higher MER correlates with a more stable HD picture. [Elektroda, LeDy, post #17093661]
What were the exact symptoms and gear in the reported case?
Setup: 80 cm dish and PVR HD 7000. Readings: 66% strength and 83% quality on Polsat HD. Failures: TVP 2 HD and Eurosport 2 HD both showed 0% and a 'No antenna signal' message. [Elektroda, markiszon, post #17093445]
What’s a quick way to isolate a bad cable?
Bypass the existing run. Connect a short new cable directly from the LNB to the decoder. This simple test separates cabling faults from LNB or dish issues and is easy to do from a balcony. [Elektroda, markiszon, post #17093907]
Could the decoder itself be faulty?
Yes. A damaged decoder is a possibility. Test with another receiver or test your decoder on a known‑good installation. Consider this after checking alignment, LNB, and cabling first. [Elektroda, kli, #17094563]
What edge cases should I check beyond cable and LNB?
Inspect for a deformed dish or incorrect LNB rotation (skew). Both can drop quality on specific frequencies. External interference can also mimic faults. Correct physical issues before changing settings. [Elektroda, kli, #17094563]
What dish size is typical for Hot Bird in Poland?
Typical dishes are approximately 70–90 cm for Hot Bird 13°E in Poland. A larger dish improves rain margin and helps stabilize DVB‑S2 HD services when alignment is precise. [Eutelsat, 2018]
When should I stop scanning and start swapping hardware?
If some transponders read 0% while others are fine after a provider scan, move to hardware. Replace the coax first. If that fails, swap the LNB. In the case discussed, a new cable restored both HD channels. [Elektroda, markiszon, post #17155638]
How do I troubleshoot missing HD channels step‑by‑step?
- Verify the provider channel list, then check MER via the red button.
- Run a short new coax from LNB to the receiver to bypass the old run.
- Swap the LNB and fine‑tune dish alignment and skew.
[Elektroda, kli, #17094563]
