From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mta5.srv.hcvlny.cv.net ([167.206.4.200]) by www.linuxtv.org with esmtp (Exim 4.63) (envelope-from ) id 1Kq7Ow-0001LV-EI for linux-dvb@linuxtv.org; Wed, 15 Oct 2008 16:31:04 +0200 Received: from steven-toths-macbook-pro.local (ool-18bfe594.dyn.optonline.net [24.191.229.148]) by mta5.srv.hcvlny.cv.net (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) with ESMTP id <0K8S00KR9AYOQF30@mta5.srv.hcvlny.cv.net> for linux-dvb@linuxtv.org; Wed, 15 Oct 2008 10:30:26 -0400 (EDT) Date: Wed, 15 Oct 2008 10:30:24 -0400 From: Steven Toth In-reply-to: <412bdbff0810150724h2ab46767ib7cfa52e3fdbc5fa@mail.gmail.com> To: Devin Heitmueller Message-id: <48F5FE80.5010106@linuxtv.org> MIME-version: 1.0 References: <412bdbff0810150724h2ab46767ib7cfa52e3fdbc5fa@mail.gmail.com> Cc: Linux-dvb Subject: Re: [linux-dvb] Revisiting the SNR/Strength issue List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-dvb-bounces@linuxtv.org Errors-To: linux-dvb-bounces+mchehab=infradead.org@linuxtv.org List-ID: Devin Heitmueller wrote: > I know that this has been brought up before, but would it be possible > to revisit the issue with SNR and strength units of measure being > inconsistent across frontends? > > I know that we don't always know what the units of measure are for > some frontends, but perhaps we could at least find a way to tell > applications what the units are for those frontends where it is known? The SNR units should be standardized into a single metric, something actually useful like ESNO or db. If that isn't available then we should aim to eyeball / manually calibrate impossible boards against known reliable demods on the same feed, it should be close enough. This requires patience and time from the right people with the right hardware. - Steve _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb