BBC HD / BBC ONEHD, can't find.

Villan11

Agh......

I changed my lnb today and have lost BBD HD / BBC ONEHD on one of my free sat boxes but not the others. I have tried to search for individual transponder 10847 22000 V, and am getting no signal, but other boxes are fine.....

I'm cracking up... Any suggestions?

Peter Rhea

What kind of lnb & dish?

Is there a drop in signal quality compared to before on any other tps on any of the receivers?

Villan11

Sky 60cm dish with octo lnb, everything else is great. Can watch BBCHD on three other receivers! No apparent drop in quality

Peter Rhea

Do other low band or vertical tps work on the affected receiver? Do you have BBC NI or ITV London SD or E4 & More4?

Villan11

Looks like I have none of those channels

Gerry Wicklow

Villan11 wrote: »

Agh......

I changed my lnb today and have lost BBD HD / BBC ONEHD on one of my free sat boxes but not the others. I have tried to search for individual transponder 10847 22000 V, and am getting no signal, but other boxes are fine.....

I'm cracking up... Any suggestions?

BBC Hds are 10847 V 23000 its an oddball setting

Villan11

Added the transponder but no look, no Channels found and no signal.
When I press info on other boxes I get 22000 for BBC HD

Gerry Wicklow wrote: »

BBC Hds are 10847 V 23000 its an oddball setting

Peter Rhea

It's 23000 alright. There's a list of transponders here: http://www.lyngsat.com/Eutelsat-28A-and-Astra-1N-2A-2B.html

Maybe that one lnb output is dodgy or the whole thing is out of focus or skewed wrong & that receiver is more sensitive to the problem.

Did the octo replace a lighter weight lnb?

Villan11

Have tried alternate outputs already and no luck. Was previously a quad lnb.

Might try a little twist of head.......

Greenpiece

Villan11 wrote: »

Have tried alternate outputs already and no luck. Was previously a quad lnb.

Might try a little twist of head.......

I am sure you mean lnb sku.


This is link from satcure which is informative on lnbs

http://www.satcure.co.uk/tech/lnb.htm

Perhaps it's a voltage related issue or mismatch between your receiver and this lnb.

Villan11

Greenpiece wrote: »

I am sure you mean lnb sku.


This is link from satcure which is informative on lnbs

http://www.satcure.co.uk/tech/lnb.htm

Perhaps it's a voltage related issue or mismatch between your receiver and this lnb.

Not sure that I do....... Very frustrating, thanks for article, will read!

STB

What make and model is the receiver ?

Villan11

STB wrote: »

What make and model is the receiver ?

Openbox S9, cheap import from Hong Kong!

zg3409

Have a look at the Skew of the LNB if you have not already. If not aligning using a proper meter it could be difficult to get maximum. Have you attempted to put back the old quad LNB to see if that works?

It might be the new LNB is faulty, but you may have bent the arm slightly, be off in Skew, be slightly too far out the arm. If some boxes are getting it and others not then it probably just needs tweaking. Some boxes are more sensitive than others of even the same make and model.

Generally a slightly larger dish professionally aligned might be better with Octo LNBs. I doubt they are as sensitive as single LNBs.

Villan11

Ok, will adjust LNB and see how it goes, ladders are away and night time is here, hopefully can try on Wednesday... Want to be ready for the Euro's on Friday!!

Thanks to all who have helped so far...

Villan11

Ok, not sure if it means anything but on closer inspection of all transponder readings, I am only getting 10% strength on all Vertical, the horizontal ones are fine. Have slightly adjusted lnb and dish with slight improvents on other boxes.

Is this significant?

Peter Rhea

Seems like a receiver-specific problem, as if it's permanently outputting 18V selecting h. pol. I suppose you could measure the voltage. (Think anywhere from about 15-18V will select h. pol.)

Presumably there is no IF loopthrough (lnb out) to another receiver or any kind of splitter arrangement you may have had prior to fitting the octo?

Villan11

There is a lnb out but it's not used, and there's no splitters. Found this on google, any opinions???

http://www.satellitesupreme.com/showthread.php?32458-S9-Fix-For-The-Low-LNB-Voltage

Peter Rhea wrote: »

Seems like a receiver-specific problem, as if it's permanently outputting 18V selecting h. pol. I suppose you could measure the voltage. (Think anywhere from about 15-18V will select h. pol.)

Presumably there is no IF loopthrough (lnb out) to another receiver or any kind of splitter arrangement you may have had prior to fitting the octo?

STB

This is a box issue.

Download an up to date channel list for the S9 and load it to your box. This will bypass the scan.

Alternatively set up a new TP at 10846 V23000 and scan it.

I presume you have it set to DVB-S2 QPSK and FEC 8/9

Villan11

I have tried 10846 already with the same response.

DVB-S2 QPSK - ok so that's a new one for me, will check that out thanks.

Have also deleted all channels and done a full rescan with little effect. Will try and get a channel list and upload to box!

STB wrote: »

This is a box issue.

Download an up to date channel list for the S9 and load it to your box. This will bypass the scan.

Alternatively set up a new TP at 10846 V 23000 and scan it.

I presume you have it set to DVB-S2 QPSK 8/9

STB

Ch List s9

Villan11

Many thanks, will try it out tonight and revert. Fingers crossed!!

STB wrote: »

Ch List s9

Villan11

Ok, so no joy with Channel list,

have been recommended to try this: http://www.ebay.co.uk/itm/In-Line-Signal-Amplifier-Sky-Satellite-Booster-2-F-plug-/270813085783?_trksid=p4340.m185&_trkparms=algo%3DDLSL%252BSIC.NPJS%26its%3DI%26itu%3DUCI%252BUA%26otn%3D10%26pmod%3D160680533396%252B160680533396%26po%3D%26ps%3D63%26clkid%3D8948692207516839553#ht_2495wt_699

Might try the old lnb and see if I can eliminate any other possible cause....

zg3409

Villan11 wrote: »

have been recommended to try this: http://www.ebay.co.uk/itm/In-Line-Signal-Amplifier-Sky-Satellite-Booster-2-F-plug-/270813085783?_trksid=p4340.m185&_trkparms=algo%3DDLSL%252BSIC.NPJS%26its%3DI%26itu%3DUCI%252BUA%26otn%3D10%26pmod%3D160680533396%252B160680533396%26po%3D%26ps%3D63%26clkid%3D8948692207516839553#ht_2495wt_699

This is designed for use only when you have very, very long cable runs. If your run is normal this is unlikely to solve the problem.

BBC needs a good signal, and as you say eliminate the unknowns. Try another receiver or try your receiver in another house.

Villan11

It's a strange one as vertical channels, including BBCHD are working on three other boxes in the house, although the problem one is the longest run, maybe 20m.

zg3409 wrote: »

This is designed for use only when you have very, very long cable runs. If your run is normal this is unlikely to solve the problem.

BBC needs a good signal, and as you say eliminate the unknowns. Try another receiver or try your receiver in another house.

zg3409

Can you move the boxes around? Some are just a little more deaf than others. Thats normal but they work with a strong signal. If so then aligning your dish better or a slighty larger dish is a better solution than an in-line amplifier. It also might be damaged or cheap coax or connections.

Villan11

Right, OK! I reverted to the previous quad LNB and I could get the vertical channels (BBC HD) no problem, 70%+ signal strength/quality.

Reverted to the Octo LNB and the channels have dropped again. Have put a different box in, and I am getting the missing channels on it. So cable and connector quality is fine, it is some issue between the new LNB and Openbox.

STB

Villan11 wrote: »

It's a strange one as vertical channels, including BBCHD are working on three other boxes in the house, although the problem one is the longest run, maybe 20m.

This may seem obvious but given the poor sensitivity of the Openbox would it not be an idea to move this to one of the other rooms with the shorter run ?

You are on the threshold for that Openboxes reception capabilities. Although most cheap receiver boxes these days cant be trusted as regards acurately metering signal strength, you should be able to see the percentage differences with the Quad on, with the Octo on and in a different room scenario(shorter cable run).

Poor sensitivity of the tuner on the openbox.

zg3409

Villan11 wrote: »

it is some issue between the new LNB and Openbox.

It looks as if the Octo is putting out a lower signal than the quad, but only the openbox is noticing.

As I said before a larger dish will help, better quality cable, a shorter run. I doubt a different octo will help. I assume they all are roughly the same.

You could try that in-line booster if it is just a very deaf box, but it would be better to boost the signal for every box.

Villan11

For the sake of a tenner I ordered two of those boosters, last resort is dish change! In the meantime I'm going to try the box at the tv with the shortest run (less than 3m) to see the effect.

Many, many thanks to you all for the help, and hopefully the easiest solution will work!!

zg3409 wrote: »

Villan11 wrote: »

it is some issue between the new LNB and Openbox.

It looks as if the Octo is putting out a lower signal than the quad, but only the openbox is noticing.

As I said before a larger dish will help, better quality cable, a shorter run. I doubt a different octo will help. I assume they all are roughly the same.

You could try that in-line booster if it is just a very deaf box, but it would be better to boost the signal for every box.

byrnefm

Hmm, I discovered I'm having the same problem with no BBC1 HD nor BBC HD.

I have a Technomate TM-6800 box. I was able to manually add in the new Channel 4 HD transponder (so now have 4seven as well) but try as I might, my box cannot find anything on the BBC HD transponder:

Transponder: 10.847 GHz
Symbol Rate: 23.000 MS/s
Polarization: V
Modulation: DVB-S2 QPSK
Code Rate 8/9
Pilot ON
Video PID / Audio PID / PCR PID: Auto.

The box won't accept 10.846 as a frequency. Has anyone had any luck tuning in the BBC HD stations on this or similar box?

EDIT:
DOH - found the answer! Apparently - whatever Pilot ON means, it's wrong. It needs to be set to Pilot OFF. Hope that helps other users!!