Return-Path: Received: from mtain-di04.r1000.mx.aol.com (mtain-di04.r1000.mx.aol.com [172.29.64.8]) by air-dd05.mail.aol.com (v129.4) with ESMTP id MAILINDD052-86334d400ed62bf; Wed, 26 Jan 2011 07:08:54 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-di04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8A65338000147; Wed, 26 Jan 2011 07:08:52 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pi49q-0007SZ-DU for rs_out_1@blacksheep.org; Wed, 26 Jan 2011 12:07:30 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pi49p-0007SQ-PJ for rsgb_lf_group@blacksheep.org; Wed, 26 Jan 2011 12:07:29 +0000 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Pi49m-0003z5-HM for rsgb_lf_group@blacksheep.org; Wed, 26 Jan 2011 12:07:29 +0000 Received: by iwn2 with SMTP id 2so839177iwn.16 for ; Wed, 26 Jan 2011 04:07:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=wghuQdc3ny9FBr9CErxwwtk3pQMARPqDljT38mqz5gM=; b=ZltgIxB1B27PQCQoUcl5SlwhhgZeIs9TEHR2tFFGg29wOQrGLOXXQ7BiUoq2yf/NGB zKAADvpXeIIWVSkNB9IDm3jwb8m//j9B0o+iNk1E6SuJPk9ouJDyiYT+cvCj+gg50aFZ G8HBb4Lcl+yao0uC5eMSkpXStE1cEN9XLBcDo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=IsTBEc2TeSaF9f2ftATJY9MN6rtuw0DTON29kfCPLJUXON05t0BORU44RDe0UiFUgY Ykn/18SP1Nhvo1XDn/Eh9VYMyoKoD07yzKmOAN9EoNYdaXVdNNOCsAAPULNB+aa72a6e 0GTpaEkPhWPT+gPwaleZPW8nvMTszI0pgN/fw= MIME-Version: 1.0 Received: by 10.231.34.9 with SMTP id j9mr7975271ibd.137.1296043644847; Wed, 26 Jan 2011 04:07:24 -0800 (PST) Received: by 10.231.200.211 with HTTP; Wed, 26 Jan 2011 04:07:24 -0800 (PST) In-Reply-To: References: Date: Wed, 26 Jan 2011 12:07:24 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126 Subject: Re: LF: A 73kHz allocation again? Content-Type: multipart/alternative; boundary=00221534c9271085ff049abead27 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_FONTCOLOR_UNSAFE, HTML_MESSAGE,HTML_TAG_EXISTS_TBODY 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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d226.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d40084d400ed44134 X-AOL-IP: 195.171.43.25 X-Mailer: Unknown (No Version) --00221534c9271085ff049abead27 Content-Type: text/plain; charset=ISO-8859-1 AAAArrrrrgggghhhh Sold the old 73kHz loading coil at FR Hamfest last year :-) But yes. 73 was more interesting that 137 turned out to be, whilst not being impossible to do something worthwhile for everyone who managed to get on. Andy www.g4jnt.com On 26 January 2011 10:38, Roger Lapthorn wrote: > All, > > Looking at recent plots and listed VLF/LF stations active there would > appear to be room in the 70-74kHz region for some amateur activity in Europe > without risk to other services. I wonder, seriously, if we asked OFCOM (and > other authorities in Europe) for NoV access to the 73kHz band whether it > would be granted. They were helpful and supportive with regard to 8.7-9.1kHz > NoVs and seem to accept that genuine research activities warrant support and > encouragement. After all, only a handful of people would be interested. > > With the progress in weak signal work since the 73kHz band was last > available in the UK and with the new experiences of some at 8.97kHz (and > 136kHz), there is surely a good case to support this as an experimental > allocation via a NoV. I'd be keen to try earth mode and radiated tests > (locally) at 73kHz. > > What do people think? Should I ask OFCOM like I did for the Dreamer's Band > NoV and see what happens or should this be via the RSGB? > > 73s > Roger G3XBM > > -- > g3xbm-qrp.blogspot.com/ > www.g3xbm.co.uk > www.youtube.com/user/g3xbm > G3XBM GQRP 1678 ISWL G11088 > > > > > > --00221534c9271085ff049abead27 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
AAAArrrrrgggghhhh
=A0
Sold the old 73kHz loading coil at FR Hamfest last year :-)
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But yes.=A0=A0 73 was more interesting that 137 turned out to be, whi= lst not being impossible to do something worthwhile for everyone who manag= ed to get on.
=A0
Andy
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On 26 January 2011 10:38, Roger Lapthorn <rogerlapthorn@= gmail.com> wrote:
All,

Looking at recent= plots and listed VLF/LF stations active there would appear to be room in= the 70-74kHz region for some amateur activity in Europe without risk to= other services. I wonder, seriously, if we asked OFCOM (and other authori= ties in Europe) for NoV access to the 73kHz band whether it would be grant= ed. They were helpful and supportive with regard to 8.7-9.1kHz NoVs and se= em to accept that genuine research activities warrant support and encourag= ement. After all, only a handful of people would be interested.

With the progress in weak signal work since the 73kHz band was last av= ailable in the UK and with the new experiences of some at 8.97kHz (and 136= kHz), there is surely a good case to support this as an experimental alloc= ation via a NoV. I'd be keen to try earth mode and radiated tests (loc= ally) at 73kHz.

What do people think? Should I ask OFCOM like I did for the Dreamer= 9;s Band NoV and see what happens or should this be via the RSGB?

7= 3s
Roger G3XBM

--
g3xbm-qrp.blogs= pot.com/
www.g3xbm.co.uk<= br>www.you= tube.com/user/g3xbm
G3XBM=A0=A0 GQRP 1678=A0=A0=A0 ISWL G11088
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