From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 18.mo3.mail-out.ovh.net ([87.98.172.162]:51769 "EHLO mo3.mail-out.ovh.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751342Ab1KGPiP (ORCPT ); Mon, 7 Nov 2011 10:38:15 -0500 Received: from mail632.ha.ovh.net (b6.ovh.net [213.186.33.56]) by mo3.mail-out.ovh.net (Postfix) with SMTP id 18D2B101C1B2 for ; Mon, 7 Nov 2011 16:19:01 +0100 (CET) Received: from [127.0.0.1] (localhost.localdomain [127.0.0.1]) by ventoso.org (Postfix) with ESMTP id 54955C26BD5 for ; Mon, 7 Nov 2011 16:13:05 +0100 (CET) Message-ID: <4EB7F57E.4060303@ventoso.org> Date: Mon, 07 Nov 2011 16:13:02 +0100 From: Luca Olivetti MIME-Version: 1.0 CC: linux-media Mailing List Subject: Re: femon signal strength References: <4EA78E3C.2020308@lockie.ca> <4EA86366.1020906@lockie.ca> <4EA86668.6090508@lockie.ca> <20111105111050.5b8762fa@grobi> <20111106141515.5b56a377@grobi> <20111106205907.47b9102b@grobi> <4EB7B75B.70004@linuxtv.org> In-Reply-To: <4EB7B75B.70004@linuxtv.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: unlisted-recipients:; (no To-header on input)@canuck.infradead.org Sender: linux-media-owner@vger.kernel.org List-ID: Al 07/11/2011 11:47, En/na Andreas Oberritter ha escrit: > I didn't receive Devin's mail, so I'm replying to this one instead, see > below: [...] > Quoting myself from three years ago, I propose to add an interface to > read SNR in units of db/100: A previous version of the dvb api specified the unit of snr as db/1000000 http://linuxtv.org/downloads/legacy/old/linux_dvb_api-20020304.pdf page 55, FE_READ_SIGNAL_STRENGTH "The signal-to-noise ratio, as a multiple of 10E-6 dB, is stored into *snr. Example: a value of 12,300,000 corresponds to a signal- to-noise ratio of 12.3 dB." It also defined the unit for ber (multiple of 10E-9). However it was dropped from subsequent revisions, I don't know why. Bye -- Luca