Return-Path: X-Spam-DCC: paranoid 1181; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,SUBJ_RE_NUM autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t9FHj1IG013792 for ; Thu, 15 Oct 2015 19:45:01 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZmmXO-0001Wm-Uw for rs_out_1@blacksheep.org; Thu, 15 Oct 2015 18:41:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZmmXO-0001Wd-N2 for rsgb_lf_group@blacksheep.org; Thu, 15 Oct 2015 18:41:58 +0100 Received: from smarthost01a.mail.zen.net.uk ([212.23.1.1]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1ZmmWT-0003JZ-Ed for rsgb_lf_group@blacksheep.org; Thu, 15 Oct 2015 18:41:57 +0100 Received: from [82.70.254.222] (helo=OfficeWin7.lan) by smarthost01a.mail.zen.net.uk with esmtp (Exim 4.80) (envelope-from ) id 1ZmmWC-0009lz-VN for rsgb_lf_group@blacksheep.org; Thu, 15 Oct 2015 17:40:45 +0000 Date: Thu, 15 Oct 2015 18:40:45 +0100 From: Chris Wilson Organization: Gatesgarth Developments X-Priority: 3 (Normal) Message-ID: <776692116.20151015184045@chriswilson.tv> To: Andy Talbot In-Reply-To: References: <1821006912.20151014193718@chriswilson.tv> <561FDEF7.2020503@charter.net> MIME-Version: 1.0 X-Originating-smarthost01a-IP: [82.70.254.222] X-Scan-Signature: bb61bee384896e075004ae5ec954ddd2 Subject: Re[2]: LF: PA0RDT antenna near a TX? Front end OK? Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 4396 Hello Andy, Thursday, October 15, 2015 > You could use a latching relay, and pulse the supply with reverse polarity to set teh input short.  > (Suitably protecting the preamp electronics with a diode) > 'jnt Ingenious! -- Best regards, Chris mailto:chris@chriswilson.tv