Return-Path: Received: (qmail 21828 invoked from network); 4 Jan 2005 20:20:48 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 4 Jan 2005 20:20:48 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1Clv9J-0006Qc-4P for dave@picks.force9.co.uk; Tue, 04 Jan 2005 20:19:25 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1Clv9J-0006QZ-1g for dave@picks.force9.co.uk; Tue, 04 Jan 2005 20:19:25 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1ClvAd-0006MN-QA for dave@picks.force9.co.uk; Tue, 04 Jan 2005 20:20:47 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ClvAC-0000XJ-Lr for rs_out_1@blacksheep.org; Tue, 04 Jan 2005 20:20:20 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ClvAC-0000XA-6Z for rsgb_lf_group@blacksheep.org; Tue, 04 Jan 2005 20:20:20 +0000 Received: from gander.ucs.mun.ca ([134.153.232.65]) by relay.thorcom.net with esmtp (Exim 4.41) id 1ClvA5-0005xe-Gq for rsgb_lf_group@blacksheep.org; Tue, 04 Jan 2005 20:20:20 +0000 Received: from plato.ucs.mun.ca (root@plato.ucs.mun.ca [134.153.232.151]) by gander.ucs.mun.ca (8.12.10/8.12.10) with ESMTP id j04KK5np032679 for ; Tue, 4 Jan 2005 16:50:05 -0330 Received: from plato.ucs.mun.ca (jcraig@localhost [127.0.0.1]) by plato.ucs.mun.ca (8.12.3p2/8.12.3) with ESMTP id j04KK5I5027269 for ; Tue, 4 Jan 2005 16:50:05 -0330 (NST) Received: (from jcraig@localhost) by plato.ucs.mun.ca (8.12.3p2/8.12.1/Submit) id j04KK53x018445; Tue, 4 Jan 2005 16:50:05 -0330 (NST) Date: Tue, 4 Jan 2005 16:50:04 -0330 (NST) From: Joe Craig X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: Message-ID: References: MIME-Version: 1.0 X-Spam-Flag: NO X-Spam-Report: -10 USER_IN_WHITELIST From: address is in the user's white-list * -2.8 ALL_TRUSTED Did not pass through any untrusted hosts X-SPF-Result: relay.thorcom.net: 134.153.232.65 is neither permitted nor denied by domain of morgan.ucs.mun.ca X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=failed,none Subject: RE: LF: TA 04Jan Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Filtered: by PlusNet SpamCORE (v3.00) Content-transfer-encoding: 8bit I use a "Burhans" preamp with my FT-817. The measured gain was 30-35 dB. Like the G0MRF version Laurence is using, it uses a BJT and FET with a somewhat enigmatic biasing arrangement for the BJT. The 817 is very deaf without a preamp. 73 Joe VO1NA