Return-Path: Received: (qmail 7608 invoked from network); 16 Dec 2000 00:52:08 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by extortion.plus.net with SMTP; 16 Dec 2000 00:52:08 -0000 Received: (qmail 9645 invoked from network); 16 Dec 2000 00:54:34 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 16 Dec 2000 00:54:34 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 1475Vx-0006fX-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 16 Dec 2000 00:47:53 +0000 Received: from mta2-rme.xtra.co.nz ([203.96.92.3]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 1475Vw-0006fS-00 for rsgb_lf_group@blacksheep.org; Sat, 16 Dec 2000 00:47:52 +0000 Received: from xtr743187 ([202.27.181.70]) by mta2-rme.xtra.co.nz with SMTP id <20001216004712.QTEL8225897.mta2-rme.xtra.co.nz@xtr743187> for ; Sat, 16 Dec 2000 13:47:12 +1300 Message-ID: <001d01c066fa$52d323c0$46b51bca@xtr743187> From: "Vernall" To: rsgb_lf_group@blacksheep.org References: <001501c066e0$1a140140$7ce67ad5@default> Subject: LF: Re: Loops preamps and imps Date: Sat, 16 Dec 2000 13:47:22 +1300 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Regarding selection of JFETs for active antennas, dynamic range tests done some time back by Andrew ZL2BBJ on a selection of JFETs showed that the J310 was generally the best choice. Optimum current around 10 mA. In some cases two J310s connected in parallel gave less intermod than one alone. 73, Bob