Return-Path: Received: (qmail 2392 invoked from network); 24 Nov 2003 20:25:06 -0000 Received: from unknown (HELO netmail02.services.quay.plus.net) (212.159.14.221) by mailstore with SMTP; 24 Nov 2003 20:25:06 -0000 Received: (qmail 15385 invoked by uid 10001); 24 Nov 2003 20:25:06 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from post.thorcom.com (193.82.116.20) by netmail02.services.quay.plus.net with SMTP; 24 Nov 2003 20:24:54 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AONFX-0000pn-8L for rsgb_lf_group-outgoing@blacksheep.org; Mon, 24 Nov 2003 20:23:59 +0000 X-No-DNS-For: 166.82.181.250 Received: from [166.82.181.250] (helo=dustmac.dustinmcintyre.com) by post.thorcom.com with esmtp (Exim 4.14) id 1AONFU-0000pX-JK for rsgb_lf_group@blacksheep.org; Mon, 24 Nov 2003 20:23:56 +0000 X-Fake-Domain: att.net Received: from att.net (main.dustinmcintyre.com [10.0.252.100] (may be forged)) by dustmac.dustinmcintyre.com (8.11.6/8.11.6) with ESMTP id hAOKNQ204189 for ; Mon, 24 Nov 2003 15:23:27 -0500 Message-ID: <3FC268BD.A4B333CD@att.net> Date: Mon, 24 Nov 2003 20:23:25 +0000 From: "Dexter McIntyre - W4DEX" X-Mailer: Mozilla 4.8 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <12d.357b7d9a.2cf3b16f@aol.com> Subject: Re: LF: Start rsgb_lf_group? Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Spam-Rating: 1 WarmSpgs@aol.com wrote: > > When in USA have permitted beacons 1w and a 15 meter antenna under FCC > > part 15 (160-190kHz)? > > This happened about 50 years ago, although I do not remember the precise year. > > John I still have the oscillator section of my first LF xmitter. It's an International Crystal OX-1 board with a 189 kc xtal. I built the xmitter about 1965 after reading a an article in an electronics magazine about the Part 15 rules. A schematic was included using what I believe was a 6AQ5 for the power amp. So I'm fairly sure the Part 15 rules for the 160-190 kc band was made prior to 1965. Dexter