From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx2.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m8MJMOYh021076 for ; Mon, 22 Sep 2008 15:22:25 -0400 Received: from mta3.srv.hcvlny.cv.net (mta3.srv.hcvlny.cv.net [167.206.4.198]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m8MJMDSv027185 for ; Mon, 22 Sep 2008 15:22:13 -0400 Received: from steven-toths-macbook-pro.local (ool-18bfe594.dyn.optonline.net [24.191.229.148]) by mta3.srv.hcvlny.cv.net (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) with ESMTP id <0K7M008TU350ZQ20@mta3.srv.hcvlny.cv.net> for video4linux-list@redhat.com; Mon, 22 Sep 2008 15:22:13 -0400 (EDT) Date: Mon, 22 Sep 2008 15:22:12 -0400 From: Steven Toth In-reply-to: <9d87242f0809221206n1d589137v8e1bf77792c31bcf@mail.gmail.com> To: Scott Bronson Message-id: <48D7F064.4010103@linuxtv.org> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT References: <9d87242f0809191425p1adb1e59p417753a4c403a872@mail.gmail.com> <412bdbff0809191428j760ed51cy8fecd68e1cb738a4@mail.gmail.com> <9d87242f0809192005t246311dp796aa28cb744b3af@mail.gmail.com> <9d87242f0809192255t49e112bfvd9c95e66bd3292a8@mail.gmail.com> <48D49A39.5010909@linuxtv.org> <9d87242f0809211316g1a34f0e7wed0f8345d5cdd787@mail.gmail.com> <48D702B5.8020800@linuxtv.org> <9d87242f0809221206n1d589137v8e1bf77792c31bcf@mail.gmail.com> Cc: video4linux-list@redhat.com Subject: Re: Unreliable tuning with HVR-950q List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: Scott Bronson wrote: > On Sun, Sep 21, 2008 at 7:28 PM, Steven Toth 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 -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list