Really bad pixelisation on channels ONE and 2?

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Kookoo

145 posts

Master Geek

Topic # 70084 18-Oct-2010 18:10
Is anyone else experiencing this over the last couple of days? Channels one and two are practically unwatchable - pixelated over half the screen almost permanently. Now, if it's not a broadcast problem - any ideas what might be causing it on my Tivo? No other channels are affected.

1 | 2

959 posts

Ultimate Geek

Subscriber

Reply # 393283 18-Oct-2010 18:18
A reception problem. Ross ADSL2+ sync (Kbps): 11577/945, attenuation (dB): 33.0/16.9, Noise margin (dB): 11.5/11.5

robbyp

1163 posts

Uber Geek

Reply # 393294 18-Oct-2010 19:04
Kookoo: Is anyone else experiencing this over the last couple of days? Channels one and two are practically unwatchable - pixelated over half the screen almost permanently. Now, if it's not a broadcast problem - any ideas what might be causing it on my Tivo? No other channels are affected. It wouldn't be a broadcasting problem, as other people would be having the same problem. Sounds like reception, possibly your aerial has brown out of alignment.

Kookoo

145 posts

Master Geek

Reply # 393311 18-Oct-2010 19:47
Hello, roof!

Kiwi1971

628 posts

Ultimate Geek

Reply # 393463 19-Oct-2010 08:54
robbyp: Kookoo: Is anyone else experiencing this over the last couple of days? Channels one and two are practically unwatchable - pixelated over half the screen almost permanently. Now, if it's not a broadcast problem - any ideas what might be causing it on my Tivo? No other channels are affected. It wouldn't be a broadcasting problem, as other people would be having the same problem. Sounds like reception, possibly your aerial has brown out of alignment. Brown? why do you have to make it racial? Have you havd a lot of wind lately? [chortle] Your aerial may just have swivelled as the guy above suggests. Make like the Drifters and go up on the roof. DLS

old3eyes

4119 posts

Uber Geek

Subscriber

Reply # 393468 19-Oct-2010 09:04
I had the same problem on Prime the other week. It turned out to be the cable between the wall and the TiVo. One of the connectors was suspect. The other channels were OK.. Replace the cable and is is well.. Regards, Old3eyes

Kookoo

145 posts

Master Geek

Reply # 393591 19-Oct-2010 13:46
Funny enough, it's all back to normal this morning, and I haven't done a thing. What gives?

huckster

92 posts

Master Geek

Reply # 393598 19-Oct-2010 13:58
Kookoo: Funny enough, it's all back to normal this morning, and I haven't done a thing. What gives? Wind blowing in a different direction....? :-)

Jaxson

4196 posts

Uber Geek

Trusted

Reply # 393617 19-Oct-2010 14:44
Yeah cover the bases. Where do you live How far are you from the broadcast tower What lies between you and the broadcast tower What aerial do you have Is your aerial UHF only or UHF diplexed with a VHF aerial What cable type runs between the aerial and your TV What are the terminations like at each end Do you have a cable right to the TV or does it end at a wall plate How many outlets does the cable run to Do you have a splitter Have you tried another interconnect cable between the wall plate and the TV Is your aerial aligned properly etc etc Could be any one or several of the above or another problem altogether.

Kookoo

145 posts

Master Geek

Reply # 393736 19-Oct-2010 19:16
The basics are covered because I've had the Tivo and Freeview HD for about 9 months now, and never had any reception-related problems. It got completely unwatchable again towards the evening. That's a strange one - it works perfectly fine during daytime, but gets completely pixellated in the evening. And yet signal strength appears at 97%, even though at some stage the screen goes completely blank, so there is no reception at all. I've got it to a watchable level now by manipulating the aerial and then reducing video output from fixed 1080i to fixed 720p. It's not a perfect solution, but at least the channels are watchable again. Again, it was funny that only the 2 TVNZ channels were affected. TVNZ, if you are reading this and are playing around with your transmitters - STOP! It's killing the reception.

Spyware

959 posts

Ultimate Geek

Subscriber

Reply # 393750 19-Oct-2010 19:40
You haven't really covered any basics, anything in environment between you and transmitter could have changed, leaves on a tree etc. Lets guess, by manipulate you mean indoor antenna. Ross ADSL2+ sync (Kbps): 11577/945, attenuation (dB): 33.0/16.9, Noise margin (dB): 11.5/11.5

Kiwi1971

628 posts

Ultimate Geek

Reply # 393754 19-Oct-2010 19:48
Spyware: You haven't really covered any basics, anything in environment between you and transmitter could have changed, leaves on a tree etc. Lets guess, by manipulate you mean indoor antenna. I remember in the UK we had to ask the council to top a tree because it was in front of our dish, during the winter it was fine but come spring, the leaves destroyed our reception. DLS

Kookoo

145 posts

Master Geek

Reply # 393811 19-Oct-2010 22:25
Spyware: You haven't really covered any basics, anything in environment between you and transmitter could have changed, leaves on a tree etc. Lets guess, by manipulate you mean indoor antenna. Nope, no tree and no other obstacles. By manipulate I meant climbing onto the roof and rotating the aerial until I got a decent picture on the TV. That's when the misus came in handy. :)

KiwiNZ

818 posts

Ultimate Geek

Reply # 393843 20-Oct-2010 06:42
Are you using HDMI or Component from the Tivo to the TV? If you are using HDMI try using Component but do a full restart of your TIVO as well to ensure your buffers are clear. If this gives you a clear picture it may mean your HDMI cable is unwell. KiwiNZ Whāia te iti kahurangi Ki te tūohu koe, me he maunga teitei Pursue excellence – should you stumble, let it be to a lofty mountain

Kookoo

145 posts

Master Geek

Reply # 393931 20-Oct-2010 12:12
Yip, using HDMI. Will wait till it goes pearshaped again and will try switching to component.

trig42

1250 posts

Uber Geek

Reply # 393939 20-Oct-2010 12:37
If it was the HDMI cable, wouldn't all channels be affected the same? Do TVNZ6 and 7 play up at the same times (they are on the same MUX as 1 and 2)? Definitely sounds reception related.

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