From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.gmx.net ([213.165.64.20]:39799 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1757298AbZFAMCM (ORCPT ); Mon, 1 Jun 2009 08:02:12 -0400 Message-ID: <4A23C321.6010608@gmx.de> Date: Mon, 01 Jun 2009 14:01:37 +0200 From: wk MIME-Version: 1.0 To: linux-media@vger.kernel.org, "jelledejong@powercraft.nl" Subject: Re: w_scan 20090502, why is the new country code necessary, its breaking my systems Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hello Jelle, > My w_scan version 20081106 stopped working on my Debian system. I had > the following errors: > ERROR: Sorry - i couldn't get any working frequency/transponder > > So I first checked if there was a wscan update. No reception for some reason - probably the new version will show the same result. > I had to make a new argument line: > ~/.wscan/wscan -t 3 -A 1 -E 0 -O 0 -c NL -X tzap > ~/.wscan/channels.conf "-A 1" is wrong for you, please omitt this one, it's used outside Europe only. "-O 0" is default anyway, not needed > This is very troubling for me because I must have a scan command that > works in complete Europa and not in one country. This is because I have > traveling systems that need to scan for channels on every stop. > > Why :-( please explain and try to fix this regression that a country > code is needed? w_scan tends to be used now to be used also in other countries - with different settings - frequency lists - frequency offsets from center frequency - Symbolrates - channel bandwidths - Modulations ( QAM_128 for example in FI, QAM_64 and QAM_256 otherwise ) At the beginning w_scan was made to work in Germany only. But with the time more and more additions were made and at some point one has to find a compromise. Either prolong scanning time to be endless, omitt new features or change command line options. If you need the some behaviour working in many european countries, you may simply use "-c DE". It will give nearly the same result as the old versions. > I was hoping for auto signal strength detection and automatic filtering > depending on the signal strength to remove duplicated channels from > different broadcast towers.. what work is being done to realize this, > and can I help by donating resources? As soon we have dvb drivers which give some reliable and *comparable* signal strength information signal information *across all frontends* this would be possible, not earlier. But i guess it will never happen. Best Regards, Winfried