All posts by steve
Below are all of steve's postings, with the most recent are at the bottom of the page.
Thanks for the advice Scott. Turns out the problem looks like it is local interference / something else. The aerial is picking up all channels fine.
I've spent some time over the last few days checking the aerial and cabling. Both seem fine.
The signal strength / quality seems fine on all channels except 55, 59 and 65. On 55 and 65, the strength sits somewhere between 30 and 70 and is variable. On 59 (the HD channels) it is the worst and sits at 0.
When I pick the fly lead up and hold it higher than the rest of the cables behind the TV (like you would with headphones on a mobile phone radio when they're acting as an FM antenna), the quality on all these channels goes up to 100 and everything is fine.
I have fiddled with the back of the box to check for bad connections there. I have also rerouted the cable multiple times to avoid sitting near all other cables. It seems quite random.
I'm suspecting the Humax HD box may have a problem with it's aerial in (dodgy solder joint / something else). That would hold if it did it for all channels, but the rest are rock solid at 100 quality.
The other option is I fitted an HDMI switch box just before all this started. Before that I'd had zero problems for years on all these channels. I completely removed the HDMI switch and left the Humax plugged directly into the TV with no other devices, but the problems still remained.
So I've narrowed it down a bit - but am still confused. If it makes any difference, the aerial has (and has had for around 4 years) a masthead amplifier powered via the 5v on the Humax. That is working fine.
Has anyone got any ideas how to solve this? I'm getting a bit lost in it, but maybe I just can't see the wood for the trees - and I'm sure there are far more experienced people than me.
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Iain: Thanks for the suggestions. I will make sure about the short circuit, but I think it is fine. No power tools I'm afraid. This has been going on constantly for around a week :-(
I was thinking about shelling out for a fully screened fly lead in case the one I have is causing it, but I have tried with 3 different fly leads with the same result.
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Saturday 2 April 2011 9:03PM
I'm seeing the same as Robbo. I've got a Freeview HD Humax box, and noticed that all the HD channels have gone plus the Mux with Film 4, Dave etc. Everything else is fine. This was fine a week ago, and has been fine for years. Nothing has changed with the aerial.
I was guessing either something was up with the transmitter, or someone has planted a huge tree somewhere between me and Black Hill!