Re: Unreliable tuning with HVR-950q

[Steven Toth <stoth@linuxtv.org>]

Scott Bronson wrote:
> On Sun, Sep 21, 2008 at 7:28 PM, Steven Toth <stoth@linuxtv.org> wrote:
>> This is really starting to sound like a signal level issue. Try attenuating,
>> this will probably help. Radio shack probably have a selection of 5 and 10db
>> inline connectors that should help.
> 
> I'll try that.  It will attenuate distant stations too, right?  I
> might have to buy two tuners, one for close stations and one for far
> away ones...?

That's fairly unusual, unless you're trying to receive TV at the low 
extremes of the tuner. I guess never say never.

> 
>> This isn't something that we can compensate for in software.
> 
> I'm not sure about that...  Rapidly re-trying seems to always produce
> a lock.  I suppose the driver could do that automatically when needed.
>  (yes it's a hack, but drivers have always needed to hack around
> hardware limitations)
> 
> Is there any way to log the tuning metrics, like signal and noise
> level, etc?  There may be a pattern here.

Watch the SNR value, it's measures in db and expressed in hex with one 
decimal place. So, 0x102 = 25.8db

- Steve

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