Date: Tue, 10 Jun 1997 14:53:10 -0400 (EDT) From: Bernie Doehner <bad@uhf.wireless.net> To: Luigi Rizzo <luigi@labinfo.iet.unipi.it> Cc: tom@inna.net, freebsd-multimedia@FreeBSD.ORG Subject: Re: Neat BT848/fxtv problem Message-ID: <Pine.BSF.3.95.970610144950.2928A-100000@uhf.wdc.net> In-Reply-To: <199706101815.UAA06874@labinfo.iet.unipi.it>
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> > > > BT848_ADC_CRUSH didn't seem to make much of a difference here though (when > > receiving of an antenna, so I left it in). I think a clarrification is in order. I am quite far from all TV stations and was using an indoor dipole antenna (away from the computer), so the local fluctuations due to changes in location of furniture/people,etc. made it impossible to really notice a difference. The only way for me to really tell is to add a ioctl so I can switch ADC_CRUSH on/off on the fly. > certainly BT848_ADC_SYNC_T is more important because it allows to > sync better. I think some AGC decisions (e.g. the level right > after sync pulses etc.) are taken assuming the frame is properly > synchronized, so if you lose sync and leave BT848_ADC_CRUSH on, > you might run into the fading problem which were mentioned. Hmmmm.. Bernie
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