Return-Path: Received: (qmail 5167 invoked from network); 12 Mar 2001 18:31:52 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by extortion.plus.net with SMTP; 12 Mar 2001 18:31:52 -0000 Received: (qmail 188 invoked from network); 12 Mar 2001 18:31:58 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 12 Mar 2001 18:31:58 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14cX00-00077n-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 12 Mar 2001 18:24:52 +0000 Received: from irwell.zetnet.co.uk ([194.247.47.48] helo=zetnet.co.uk ident=root) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14cWzy-00077g-00 for rsgb_lf_group@blacksheep.org; Mon, 12 Mar 2001 18:24:51 +0000 Received: from oemcomputer (man-126.dialup.zetnet.co.uk [194.247.40.161]) by zetnet.co.uk (8.11.3/8.11.3/Debian 8.11.2-1) with SMTP id f2CIOMp00580 for ; Mon, 12 Mar 2001 18:24:22 GMT Message-ID: <002801c0ab22$33b34bc0$a128f7c2@oemcomputer> From: "John Rabson" To: rsgb_lf_group@blacksheep.org References: <65AECDF1F89AD411900400508BFC869F9C03BE@pdw-mail-1.dera.gov.uk> Subject: LF: Re: Active antennas at LF. Date: Mon, 12 Mar 2001 18:28:10 -0000 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 5.00.2615.200 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: Now that's a thought. I have some E88CCs somewhere... ----- Original Message ----- From: Talbot Andrew To: Sent: Monday, March 12, 2001 4:32 PM Subject: LF: RE: Manual and active antennas at LF. > Incidently, returning to an earlier topic, the current Naval standard HF > receiving antenna on board ships is an active whip, made from a 2m > length of 50mm diameter Al pole. The amp is made from three E88CC > valves in parallel, operating in a cascode / common collector circuit. 73 de John Rabson G3PAI