[mythtv-users] Satix S2 Dual regular dropouts / poor signal quality?

Robert Longbottom RobertCL at iname.com
Mon Oct 11 20:03:08 UTC 2010


  On 11/10/2010 18:58, Andre wrote:
> On 11 Oct 2010, at 16:56, Robert Longbottom wrote:
>> On Sun, October 10, 2010 9:23 am, Andre wrote:
>>> Femon doesn't seem very happy with the adaptor but this is what I see
>>> during a DVBS2 recording on first tuner.
>>>
>>> Problem retrieving frontend information: Operation not supported
>>> status SCVYL | signal  60% | snr  75% | ber 1 | unc 4328729 | FE_HAS_LOCK
>>> Problem retrieving frontend information: Operation not supported
>>> status SCVYL | signal  60% | snr  75% | ber 1 | unc 4328729 | FE_HAS_LOCK
>>>
>>> Second tuner isn't connected...
>>>
>>> We have an oversized dish and a well specified system (by me) in my
>>> building, we never see weather related fades so I can't really comment on
>>> the signal sensitivity.
>> Interesting, it seems that you have similar signal, snr and ber to me, (if
>> not slightly lower) but yet yours is working ok.  I'm guessing your unc
>> numbers are being reported incorrectly because I'd have thought that many
>> uncorrected errors would be a problem :-)
> I'm guessing it's either cumulative or garbage, I'm seeing similar unc with the Nova S+&  HD S2 but more meaningful signal and snr.
>
> FE: Conexant CX24123/CX24109 (DVBS)
> Problem retrieving frontend information: Operation not supported
> status SCVYL | signal  97% | snr  99% | ber 0 | unc 8916249 | FE_HAS_LOCK
> Problem retrieving frontend information: Operation not supported
> status SCVYL | signal  97% | snr  99% | ber 0 | unc 8916249 | FE_HAS_LOCK
> Problem retrieving frontend information: Operation not supported
> status SCVYL | signal  97% | snr  99% | ber 0 | unc 8916249 | FE_HAS_LOCK

Hmm, interesting.  Maybe the 60/70% from the Satix isn't a problem at 
all then.  Just different reporting.

> You can also join in the kerfuffle if anyone dares to suggest again that things like signal, snr, unc, ber should be normalised across all cards or even just vaguely meaningful ;-)
Ha!  Are they still arguing about that?  They were having that 
discussion about 5 years ago when I used to subscribe to linux-dvb 
mailing list :-)

> It's an expensive card too, especially if like me you only use half of it! There were some reports on the German VDR forums that there were some bad cards out there, maybe yours is faulty.
>
> I probably should have just bought a Tevii s470 but can't ever resist something "better", I did hear that there was a bad batch of the s470's and I have warranty replaced two Nova S+'s an a HD S2, and the S+'s have failed again since! The Satix was their replacement but they still receive the BBC HD and ITV Muxes (low band vertical) so are back in use.
>
> Shame this card isn't there yet, it's an ideal MythTV/VDR/TVHeadend card.
Yes, not the cheapest, but the choice of Dual tuner PCI-e DVB-S2 cards 
seems to be fairly limited!  And it is tiny as well.

No time to play with it tonight, maybe later in the week!
Robert.



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