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From: Steven Toth <stoth@linuxtv.org>
To: Scott Bronson <bronson@rinspin.com>
Cc: video4linux-list@redhat.com
Subject: Re: Unreliable tuning with HVR-950q
Date: Mon, 22 Sep 2008 15:22:12 -0400	[thread overview]
Message-ID: <48D7F064.4010103@linuxtv.org> (raw)
In-Reply-To: <9d87242f0809221206n1d589137v8e1bf77792c31bcf@mail.gmail.com>

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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  reply	other threads:[~2008-09-22 19:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-19 21:25 Unreliable tuning with HVR-950q Scott Bronson
2008-09-19 21:28 ` Devin Heitmueller
2008-09-20  3:05   ` Scott Bronson
2008-09-20  5:55     ` Scott Bronson
2008-09-20  6:37       ` Steven Toth
2008-09-21 20:16         ` Scott Bronson
2008-09-22  2:28           ` Steven Toth
2008-09-22 19:06             ` Scott Bronson
2008-09-22 19:22               ` Steven Toth [this message]
2008-09-23  6:35                 ` Scott Bronson
2008-09-23 15:14                   ` Steven Toth
2008-09-26 16:52                     ` Scott Bronson
2008-10-01 18:46                       ` Scott Bronson
2008-10-06 15:43                         ` Steven Toth
2008-10-06 15:53                           ` Devin Heitmueller
2008-10-06 15:57                             ` Steven Toth

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