Losing 13E HD channels during rain

Eddles

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Hi all,

I just repurposed a rather old Sky mini dish, quad LNB and cabling to receive Polish channels from 13E using a brand new Polsat decoder and subscription. Today during heavy rain, we lost signal of all the HD channels or suffering heavy pixelation. All SD channels works perfect. The signal came back after the rain stopped. I can think of three possible reasons for this - the LNB has lost its waterproofing, the rain is affecting the signal or the dish is out of alignment. I'm suspecting the alignment is the most likely reason, but can more knowledgeable people give me their thoughts please?

Many thanks!
 

Lazarus

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Yes, very slight misalignment accentuated by the inevitable disruption heavy rain brings. HD Channels are often more fickle than SD, so will be the first to lose lock in adverse circumstances.

One other thing, as you are using a Sky dish and LNB (Presumably), you'll need to reduce the LNB skew from the normal "3" for UK use on 28E to "1". Unlike "proper" LNBs, the skew is adjustable only over a small range and is always going to be a compromise on more Westerly Satellites.
 

BM300

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Signal attenuation occurs during heavey rain.
If your dish is not reflecting enough signal to your LNB (due to reduced size or slight mis-allignment) , pixelation occurs or channels simply go blank.
A slightly larger dish or a more sensetive LNB can easily compensate for this signal loss.
HD channels carry more information than SD channels.
If part of this information is missing, the picture is incomplete.
That is why the SD channls suffer less.
 

wod

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Swap the dish to a zone 2 minidish and you will be fine for 13e
 
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