S9 losing signal

[citygent1911]

Have you got another length of coax you could run to the lnb, just to test... Im thinking, maybe theres water ingress in the cable, or your terminations are poor.. Failing that, get a complete new sky dish kit, they're cheap enough..

Hi mate, funny you mention terminations because in the strong winds on Monday, the cable "blew" out of the LNB! It left the f-connector in there of course so it obviously wasn't a tight fit. That also then leads to the possibility of water ingress.

I've got the dish back in line with a fairly decent signal but its still dropping out so maybe I'll re-wire now with new cable & see if that works.

Any ideas why I can get a decent (85%/75%) signal, which then drops off until "No Signal" - then when I turn off the LNB & turn it back on, the signal is back up there again? Seems wierd to me, but I know you're right Binary about not blaming box for everything.

[the man]

when the uner gets warm it stops working , ie fualty tuners in some s9 s10s ime

[citygent1911]

when the uner gets warm it stops working , ie fualty tuners in some s9 s10s ime

So can we fit a fan or something to keep it cool?

[citygent1911]

I spent 2 hours positioning the dish yesterday, using a sky+ box to make sure I was on the right sat. Got a good enough signal for sky box to work, so plugged S9 in and it worked a treat......for 2 hours. Signal on SS1 dropped from 85% / 70% to 45% / 10%.



There's no way the dish/lnb/cable could result in that drop off, becuase they'd either work -or not work, rather than work for a couple of hours, then gradually deplete the signal till it disappears completely. EDIT: Here's a video I managed to get of the point when the signal goes completely - happens about 29s in..

http://s777.photobucket.com/albums/yy57/citygent1911/Shared%20videos/?action=view&current=skycutout.mp4

All points to tuner heating up & then packing up completely. If I leave the box off for a couple of hours then turn it back on, I get a signal again - for a while.

I agree with The Man - I think tuner is overheating.

[the man]

I'm not sure , but i know if the open box s10 in the front rooms is on the one up in the bedrooms fine ,
after a few hours turning the box in the front room , and with in seconds the bedroom one loses signal etc this is a fact , can do it 10 ou of ten time after both box's are on . weird

ps can get box in bedroom working again by turning on box front room

[citygent1911]

I'm not sure , but i know if the open box s10 in the front rooms is on the one up in the bedrooms fine ,
after a few hours turning the box in the front room , and with in seconds the bedroom one loses signal etc this is a fact , can do it 10 ou of ten time after both box's are on . weird

ps can get box in bedroom working again by turning on box front room

Is the bedroom box fed by the LNB output from the S10 downstairs? If not, that's strange!

Having said that, I'll try plugging the sky+ box into the LNB and leaving them both on - maybe the extra power supply to the LNB from the SKY+ box improves the signal strength output from the LNB?? Bit of a long shot I know.....

[termiantor]

why dont you just buy an inline amp 13db-18db slope

[the man]

Is the bedroom box fed by the LNB output from the S10 downstairs? If not, that's strange!

Having said that, I'll try plugging the sky+ box into the LNB and leaving them both on - maybe the extra power supply to the LNB from the SKY+ box improves the signal strength output from the LNB?? Bit of a long shot I know.....

fed by the LNB

[citygent1911]

when the uner gets warm it stops working , ie fualty tuners in some s9 s10s ime

bought a laptop cooling pad today, and it seems to be helping. When box has been off for a while, I get most channels (one or two are breaking up but that's bad signal I think).

[citygent1911]

why dont you just buy an inline amp 13db-18db slope

Bought one of these too -might as well go for it!

[citygent1911]

bought a laptop cooling pad today, and it seems to be helping. When box has been off for a while, I get most channels (one or two are breaking up but that's bad signal I think).

Well - it helped, but I still lose most channels (mostly premium channels - BBC1 still has 90% / 72% strength...?) after about 3 hours. As usual, as soon as I turn off & turn back on, everything comes back.....

Certainly seems to be an overheating issue though......

[swanside]

I spent 2 hours positioning the dish yesterday, using a sky+ box to make sure I was on the right sat. Got a good enough signal for sky box to work, so plugged S9 in and it worked a treat......for 2 hours. Signal on SS1 dropped from 85% / 70% to 45% / 10%.



There's no way the dish/lnb/cable could result in that drop off, becuase they'd either work -or not work, rather than work for a couple of hours, then gradually deplete the signal till it disappears completely. EDIT: Here's a video I managed to get of the point when the signal goes completely - happens about 29s in..

Shared videos :: skycutout.mp4 video by citygent1911 - Photobucket

All points to tuner heating up & then packing up completely. If I leave the box off for a couple of hours then turn it back on, I get a signal again - for a while.

I agree with The Man - I think tuner is overheating.

Signal quality it too low. There is too much interferance in that.

[citygent1911]

Signal quality it too low. There is too much interferance in that.

Ah bo**ocks...you know what? Theres a new dish, lnb & cable going up this week!

Anyone any experience of the Ross 60cm dish from b & q? There in the sale for ?25 again...

Otherwise, can anyone recommend a decent dish and lnb set? Only want 28.2e so nothing fancy but it needs to work with an average signal! Cheers

[nibblitz]

Zone2 Sky Dishes with a quad LNB are about 20 quid delivered on ebay... They're a good size, meant for use in the whole of the UK, even right up north.. They perform much better than Zone1 Mini dishes in poor weather..

[citygent1911]

curiouser and curiouser......

I found an interesting fact on t'internet this morning, and it may be common knowledge, but I'd not come across it before.

Some LNB's aren't compatible with sky minidishes. turns out that due to the eliptical shape of a minidish, the internal horn of the LNB has to be eliptical too, in order to "catch" the rebounding signal from the box.

The new quad LNB I've been struggling with recently is, after I'd prised off the white cap, a round horn, and so will not be getting as much of a signal as it should (because the dish isn't round). I guess if someone is getting a strong signal it doesn't make any difference, but if I'm only getting a weak signal, then this could have been the reason the channels were cutting out.

Did I read somewhere that the Openbox now reports "No Signal!" if the strength is below 50%? Or did I dream that...!

I dug out the "other" quad LNB I'd tried as it's branded Sky, and I've now been getting most channels since 11am!



I know the dish is out of alignment because its as wonky as f*ck, but I was getting some channels with it at that angle!! So I'm going to persevere with the latest set up & will no doubt report back in again soon.