[linux-dvb] Re: SL1935 vs TDA8060TS

[David Zanetti <dave2@wetstring.net>]

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On Sun, 26 Sep 2004, Andrew de Quincey wrote:

> On Sunday 26 Sep 2004 03:24, David Zanetti wrote:
> > It's a shared installation for the building, so I'll have to get back to
> > you about the details. However, it does have UHF terrestrial combined into
> > the same feed into the appartment, so there will be a device handling
> > that, but it's _extremely_ likely to be a single LNB since there's pretty
> > much only one useful sat to look at here in NZ: Optus B1, and it's all
> > vertical.
>
> Yeah - I see what you mean. http://www.lyngsat.com/optusb1.html. There are a
> couple of H channels mentioned on that page though.

satcodx has a better list, mostly because it has the footprint beside each
transponder:

 http://www.satcodx5.com/1600/eng/

You'll see anything hitting NZ is almost without exception vertical. (The
only exceptions I've never been able to tune actually, only the ones
listed a vertical will lock.)

> The confusing thing was it worked perfectly with commercial satellite decoders
> - I think they must just try all possible cominations of H/V/HI/LO until they
> get something that works. Perhaps the windows software does this as well.

Yes, I've been looking closely at what the win32 software is doing, but it
seems to report 12.456 and Vertical, and the LNB is configured as a simple
one with just hi/low.

> I see from your test you've tried this as well. However, your log for H in
> dvbtunes shows no errors whatsoever - yet you say you definitely get them
> when dumping H. I don't quite understand that...

Ah, I think I've found a working set of options. Just -p h will result in
a stream with TS continuity errors. But -tone 1 seems to resolve it, I've
been able to dump from that for a few minutes without any errors. It's
still puzzling how it's definately in both cases giving me the same
channels, but only works in the later.

Thanks for your help, I should have spotted the -tone option before.
Hopefully now I can make MythTV do the Right Thing. :)

- -- 
David Zanetti           |  (__)
#include <geek/unix.h>  |  ( oo    Mooooooo
http://hairy.geek.nz/   |  /(_O ./
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