From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 7of9.schinagl.nl ([88.159.158.68]:58062 "EHLO 7of9.schinagl.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752794Ab3CFSFw (ORCPT ); Wed, 6 Mar 2013 13:05:52 -0500 Message-ID: <513785C5.8040702@schinagl.nl> Date: Wed, 06 Mar 2013 19:07:01 +0100 From: Oliver Schinagl MIME-Version: 1.0 To: Jean Delvare CC: Linux Media Subject: Re: TerraTec Cinergy T PCIe Dual not working References: <20130306142713.6a68179a@endymion.delvare> <51374B6D.9010805@schinagl.nl> <20130306160335.01cc5cd4@endymion.delvare> In-Reply-To: <20130306160335.01cc5cd4@endymion.delvare> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 03/06/13 16:03, Jean Delvare wrote: > Hi Oliver, > > Thanks for your fast reply. > > On Wed, 06 Mar 2013 14:58:05 +0100, Oliver Schinagl wrote: >> I have the same card, and have not much problems. I have some reception >> issues, but I don't think it's to blame on the card (yet). I do use >> tvheadend however. >> >> In anycase, can you use w_scan or dvb-scan? > > I have neither but I have "scan" from package "dvb" which does work. > This gave me the idea to re-run scan with different frequency files and > different antennas. > > It turns out that my problem is the antenna. I was using the antenna I > have been using with my previous card, which is an internal DVB-T > antenna with amplification (external power supply.) I get zero signal > with that. But using the Terratec-provided cheap "stick" antenna, I get > signal again, with reasonable quality (although not as stable as with > the old card and the powered antenna.) I also get signal (but not all > channels) with my original antenna _unpowered_ (thus signal not > amplified.) > > I admit I don't quite understand. I would understand that a bad, > unpowered antenna causes no signal to be sensed. But how is it possible > that a supposedly better, powered antenna causes that kind of issue? > > Oliver, out of curiosity, what antenna are you using? The > Terratec-provided one, or another one? > Right now, I use 11cm stripped coax :) But that's because I live 600 meters from the broadcasting tower. This actually gives me the best reception. The mini antenna that came with the thing worked quite well, but the wire was a bit short. Besides that I did use a powered antenna for a while, without the power connected, because it actually dampens the signal. That worked quite well for a while. Using it powered, with an external power source, actually made it much worse.