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Tuning problems with new LNB and DVB-S2 card

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nickw at beekeeping

Dec 25, 2011, 4:50 PM

Post #1 of 4 (537 views)
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Tuning problems with new LNB and DVB-S2 card

I added a TeVii S460 S2 card to my system's backend to try to add
Channel 9, Go! and GEM, specifically.

I replaced the basic LNB with a Dual Twin Output LNB and ran the second
coax. I am not certain this new LNB is right for the 900mm oval dish -
it may be intended for the smaller round dish? But it does get all the
channels from the two Freeview transponders as it did before the
replacements...

I've confirmed, to the best of my ability, the dish pointing at Optus
D1, using a finder to confirm the pointing (which was already pretty
much there from the previous setup).

The only oddity I get there is in the skew (is that the right term?) of
the LNB - the signal *seems* to go up if the output connectors are at
about the 10 o'clock position, rather than the expected 8 o'clock. But
in fact nothing gets received at all if it is at 10 - so I've put it
back to 8 as I think it should be.

Trying to tune the new card to Ch 9, etc, I go for freq 12398000,
vertical polarity, 11909000 symbol rate, DVB-S2. Though it shows a
signal strength of 86% and S/N of 79% - it doesn't get a 'lock'.

I would have thought that should get the new channels for me?

After a number of attempts, twice it *has* had a lock, and once to the
point that I could get the channels tuned, etc - but eventually stopped
tuning them...

I'd sure appreciate some guidance on what to try next...

Nick
Tauranga

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nhenwood.lists at gmail

Dec 29, 2011, 9:43 PM

Post #2 of 4 (491 views)
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Re: Tuning problems with new LNB and DVB-S2 card [In reply to]

On 26/12/11 13:50, Nick Wallingford wrote:
> I added a TeVii S460 S2 card to my system's backend to try to add
> Channel 9, Go! and GEM, specifically.
>
> I replaced the basic LNB with a Dual Twin Output LNB and ran the second
> coax. I am not certain this new LNB is right for the 900mm oval dish -
> it may be intended for the smaller round dish? But it does get all the
> channels from the two Freeview transponders as it did before the
> replacements...
>
> I've confirmed, to the best of my ability, the dish pointing at Optus
> D1, using a finder to confirm the pointing (which was already pretty
> much there from the previous setup).
>
> The only oddity I get there is in the skew (is that the right term?) of
> the LNB - the signal *seems* to go up if the output connectors are at
> about the 10 o'clock position, rather than the expected 8 o'clock. But
> in fact nothing gets received at all if it is at 10 - so I've put it
> back to 8 as I think it should be.
>
> Trying to tune the new card to Ch 9, etc, I go for freq 12398000,
> vertical polarity, 11909000 symbol rate, DVB-S2. Though it shows a
> signal strength of 86% and S/N of 79% - it doesn't get a 'lock'.
>
> I would have thought that should get the new channels for me?
>
> After a number of attempts, twice it *has* had a lock, and once to the
> point that I could get the channels tuned, etc - but eventually stopped
> tuning them...
>
> I'd sure appreciate some guidance on what to try next...
>
> Nick
> Tauranga
>
> _______________________________________________
> mythtvnz mailing list
> mythtvnz [at] lists
> http://lists.ourshack.com/mailman/listinfo/mythtvnz
> Archives http://www.gossamer-threads.com/lists/mythtv/mythtvnz/
Hi Nick

I have the same DVB-S2 card, and also have issues with tuning and
recording from the Channel 9 transponder. If I remove the power from the
backend, it will record fine for a few days, then I get 0 bite
recordings again, untill I power off again. SBS & freeview record Ok
while Channel 9 fails.
I have an updated Fedora 16 kernel waiting for me now that I am back
home again to see if that works, so will know in a couple of days if
that is the issue. (Going from 3.1.5-6.fc16.x86_64 to 3.1.6-1.fc16.x86_64)

The 2 LNB's that I have are an old 90cm iHug dish, and a old 60cm Sky
dish with Sharp LNB.

So try remove power from your backend (don't just reboot) and see how
you go then.

Neil

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nhenwood.lists at gmail

Dec 29, 2011, 9:46 PM

Post #3 of 4 (486 views)
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Re: Tuning problems with new LNB and DVB-S2 card [In reply to]

nickw at beekeeping

Dec 30, 2011, 12:18 AM

Post #4 of 4 (484 views)
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Re: Tuning problems with new LNB and DVB-S2 card [In reply to]

On 30/12/11 18:46, Neil Henwood wrote:
> On 26/12/11 13:50, Nick Wallingford wrote:
>> I added a TeVii S460 S2 card to my system's backend to try to add
>> Channel 9, Go! and GEM, specifically.
>>
>> I replaced the basic LNB with a Dual Twin Output LNB and ran the second
>> coax. I am not certain this new LNB is right for the 900mm oval dish -
>> it may be intended for the smaller round dish? But it does get all the
>> channels from the two Freeview transponders as it did before the
>> replacements...
>>
>> I've confirmed, to the best of my ability, the dish pointing at Optus
>> D1, using a finder to confirm the pointing (which was already pretty
>> much there from the previous setup).
>>
>> The only oddity I get there is in the skew (is that the right term?) of
>> the LNB - the signal *seems* to go up if the output connectors are at
>> about the 10 o'clock position, rather than the expected 8 o'clock. But
>> in fact nothing gets received at all if it is at 10 - so I've put it
>> back to 8 as I think it should be.
>>
>> Trying to tune the new card to Ch 9, etc, I go for freq 12398000,
>> vertical polarity, 11909000 symbol rate, DVB-S2. Though it shows a
>> signal strength of 86% and S/N of 79% - it doesn't get a 'lock'.
>>
>> I would have thought that should get the new channels for me?
>>
>> After a number of attempts, twice it *has* had a lock, and once to the
>> point that I could get the channels tuned, etc - but eventually stopped
>> tuning them...
>>
>> I'd sure appreciate some guidance on what to try next...
>>
>> Nick
>> Tauranga
>>
>> _______________________________________________
>> mythtvnz mailing list
>> mythtvnz [at] lists
>> http://lists.ourshack.com/mailman/listinfo/mythtvnz
>> Archives http://www.gossamer-threads.com/lists/mythtv/mythtvnz/
> Hi Nick
>
> I have the same DVB-S2 card, and also have issues with tuning and
> recording from the Channel 9 transponder. If I remove the power from the
> backend, it will record fine for a few days, then I get 0 bite
> recordings again, untill I power off again. SBS& freeview record Ok
> while Channel 9 fails.
> I have an updated Fedora 16 kernel waiting for me now that I am back
> home again to see if that works, so will know in a couple of days if
> that is the issue. (Going from 3.1.5-6.fc16.x86_64 to 3.1.6-1.fc16.x86_64)
>
> The 2 LNB's that I have are an old 90cm iHug dish, and a old 60cm Sky
> dish with Sharp LNB.
>
> So try remove power from your backend (don't just reboot) and see how
> you go then.
>
> Neil
>

For sure worth a try!

Given that I have had *occasional* ability to tune Channel 9, etc, I
know it is possible, so apart from needing to work around the family's
use of the TV (heh, heh...) I'm keen to keep trying until I can get it
sorted out.

Tonight, for instance, is one of those "Are you messing around with the
TV again? - STOP it" times in our household...

Nick

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