From owner-freebsd-multimedia Tue Jun 10 11:48:05 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id LAA23613 for multimedia-outgoing; Tue, 10 Jun 1997 11:48:05 -0700 (PDT) Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id LAA23533 for ; Tue, 10 Jun 1997 11:47:58 -0700 (PDT) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id UAA06874; Tue, 10 Jun 1997 20:15:15 +0200 From: Luigi Rizzo Message-Id: <199706101815.UAA06874@labinfo.iet.unipi.it> Subject: Re: Neat BT848/fxtv problem To: bad@uhf.wireless.net (Bernie Doehner) Date: Tue, 10 Jun 1997 20:15:15 +0200 (MET DST) Cc: tom@inna.net, freebsd-multimedia@FreeBSD.ORG In-Reply-To: from "Bernie Doehner" at Jun 10, 97 01:05:27 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-multimedia@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > to > > > > #define SYNC_LEVEL (BT848_ADC_RESERVED | BT848_ADC_SYNC_T) > > > > BT848_ADC_CRUSH didn't seem to make much of a difference here though (when > receiving of an antenna, so I left it in). 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. Luigi