Return-Path: Received: from rly-de03.mx.aol.com (rly-de03.mail.aol.com [172.19.170.139]) by air-de07.mail.aol.com (v123.4) with ESMTP id MAILINDE072-4c64a046be532e; Fri, 08 May 2009 13:29:13 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-de03.mx.aol.com (v123.4) with ESMTP id MAILRELAYINDE037-4c64a046be532e; Fri, 08 May 2009 13:29:11 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1M2Trx-0005o2-Ir for rs_out_1@blacksheep.org; Fri, 08 May 2009 18:28:21 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1M2Trx-0005nt-3s for rsgb_lf_group@blacksheep.org; Fri, 08 May 2009 18:28:21 +0100 Received: from c2beaomr04.btconnect.com ([213.123.26.182]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1M2Tru-0006S3-R5 for rsgb_lf_group@blacksheep.org; Fri, 08 May 2009 18:28:20 +0100 Received: from [192.168.1.64] (host86-130-177-148.range86-130.btcentralplus.com [86.130.177.148]) by c2beaomr04.btconnect.com with ESMTP id BAF83858; Fri, 8 May 2009 18:28:12 +0100 (BST) Message-ID: <4A046BAF.3050108@btconnect.com> Date: Fri, 08 May 2009 18:28:15 +0100 From: Richard Newstead User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4A045BA9.60002@btconnect.com> <8bf118410905080936v26db00dbh1610abc103aa78f2@mail.gmail.com> In-Reply-To: <8bf118410905080936v26db00dbh1610abc103aa78f2@mail.gmail.com> X-Junkmail-Status: score=10/50, host=c2beaomr04.btconnect.com X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A0B020A.4A046BAD.018F,ss=1,fgs=0, ip=192.168.1.64, so=2007-10-30 19:00:17, dmn=5.7.1/2008-09-02 X-Junkmail-IWF: false X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: 500kHz Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: 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-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Dave Pick wrote: > Richard > > I think most are "VFO" controlled... Centre of activity appears to be > between 502-503 with beacony things nearer the edges. If you came up > on 502.5 you wouldn't go far wrong! > Thanks Dave. I have had great trouble in getting the UEP VFO into the band as it initially would only just reach 500kHz. In the end I had to remove the trimmer and the 33p to deck, put a second resonator in parallel and couple them to the IC via 150pF instead of directly. With those mods I am now on 502.5kHz. I will need to check to make sure that it stays reliably on frequency (or in the band) over the likely supply voltage and temp range. Still, I'm making progress. 73 Richard G3CWI