Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4472D38000090; Fri, 15 Jun 2012 10:41:01 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SfXhA-0002ut-Au for rs_out_1@blacksheep.org; Fri, 15 Jun 2012 15:40:16 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SfXh9-0002uk-Oc for rsgb_lf_group@blacksheep.org; Fri, 15 Jun 2012 15:40:15 +0100 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SfXh7-0006e0-MG for rsgb_lf_group@blacksheep.org; Fri, 15 Jun 2012 15:40:14 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkkFALJH209cHnS//2dsb2JhbABFgkWiMJBdgQiCEwUBAQQBCAEBAyAhCAIhBQYBAQMFAgEDEQQBAQolFAEEGAIGDAoIBg8EAQkBAgIBAQELBIdcAwYJB7A7A4lYizaCdoMbA4gPhTSRBYZZgmA X-IronPort-AV: E=Sophos;i="4.77,417,1336345200"; d="scan'208,217";a="38608143" Received: from host-92-30-116-191.as13285.net (HELO xphd97xgq27nyf) ([92.30.116.191]) by out1.ip07ir2.opaltelecom.net with SMTP; 15 Jun 2012 15:40:12 +0100 Message-ID: <001b01cd4b04$c2af4070$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: Cc: "rsgb" References: <1339764331.93564.androidMobile@web87306.mail.ird.yahoo.com>, <62B235AA2E5B403DBB68DD1DCBE0FFCC@TraceyPC> <4FDB4937.5414.64D2FC4@mike.dennison.ntlworld.com> Date: Fri, 15 Jun 2012 14:40:07 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Un supervised amateur Beacons will be the most likely cause of QRM both to other amateurs in QSO mode and the NDB service. g3kev ----- Original Message ----- From: Mike Dennison To: rsgb_lf_group@yahoogroups.co.uk Sent: Friday, June 15, 2012 1:39 PM Subject: Re: [rsgb_lf_group] Band Planning for 472 Khz Band ? [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [62.24.128.243 listed in list.dnswl.org] 0.0 FSL_XM_419 Old OE version in X-Mailer only seen in 419 spam -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 FSL_UA FSL_UA 0.0 AXB_XMAILER_MIMEOLE_OL_024C2 AXB_XMAILER_MIMEOLE_OL_024C2 X-Scan-Signature: 878378c84d659d633f9d7bc29982f8f5 Subject: LF: Re: [rsgb_lf_group] Band Planning for 472 Khz Band ? Content-Type: multipart/alternative; boundary="----=_NextPart_000_0018_01CD4B04.C27851F0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=HTML_70_80,HTML_MESSAGE 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-SCORE: 1:2:428363168:93952408 X-AOL-SCOLL-URL_COUNT: 8 x-aol-sid: 3039ac1d40864fdb497d0f21 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0018_01CD4B04.C27851F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Un supervised amateur Beacons will be the most likely cause of QRM both = to other amateurs in QSO mode and the NDB service. g3kev ----- Original Message -----=20 From: Mike Dennison=20 To: rsgb_lf_group@yahoogroups.co.uk=20 Sent: Friday, June 15, 2012 1:39 PM Subject: Re: [rsgb_lf_group] Band Planning for 472 Khz Band ? =20 Guard bands for all 27 listed NDBs would present a problem as the MCW=20 receivers would be at least 2.5kHz wide. Fortunately, any=20 interference from amateurs is likely to be extremely local. Our small=20 signal working is likely to suffer more QRM =3Dfrom=3D the NDBs than = to=20 them. Mike, G3XDV =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > Twenty-seven NDBs have been logged in Europe between 472-479kHz. > Twelve of those have been logged from the UK. > The NDB database on the Classaxe web site would provide detailed > information on frequencies which should be avoided. It should be = borne > in mind that the NDBs use A2 mode with a mix of approx 400Hz and > 1020Hz modulation, so there are a good number of specific slots to = be > wary of. >=20 > http://www.classaxe.com/dx/ndb/reu/ >=20 > Perhaps some consideration should be given to setting up some form = of > guard bands/frequencies in order to avoid any problems with NDBs? >=20 > 73s Tracey G5VU __._,_.___ Reply to sender | Reply to group | Reply via web post | Start a new = topic=20 Messages in this topic (9)=20 Recent Activity: a.. New Members 4=20 Visit Your Group=20 Switch to: Text-Only, Daily Digest . Unsubscribe . Terms of Use. =20 __,_._,___ ------=_NextPart_000_0018_01CD4B04.C27851F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Un supervised amateur Beacons will be the most = likely=20 cause of QRM both to other amateurs in QSO mode and the NDB=20 service.
g3kev
 
----- Original Message -----
From:=20 Mike Dennison
To: rsgb_lf_group@yahoogroups= .co.uk=20
Sent: Friday, June 15, 2012 = 1:39 PM
Subject: Re: [rsgb_lf_group] = Band=20 Planning for 472 Khz Band ?

  =

Guard bands for all 27 listed NDBs would present a problem as the = MCW=20
receivers would be at least 2.5kHz wide. Fortunately, any =
interference=20 from amateurs is likely to be extremely local. Our small
signal = working is=20 likely to suffer more QRM =3Dfrom=3D the NDBs than to =
them.

Mike,=20 G3XDV
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

> Twenty-seven NDBs = have been logged in Europe=20 between 472-479kHz.
> Twelve of those have been logged from the=20 UK.
> The NDB database on the Classaxe web site would provide=20 detailed
> information on frequencies which should be avoided. = It should=20 be borne
> in mind that the NDBs use A2 mode with a mix of = approx 400Hz=20 and
> 1020Hz modulation, so there are a good number of specific = slots to=20 be
> wary of.
>
> http://www.classaxe.com/dx/n= db/reu/
>=20
> Perhaps some consideration should be given to setting up some = form=20 of
> guard bands/frequencies in order to avoid any problems with = NDBs?
>
> 73s Tracey = G5VU

__._,_.___
Reply=20 to sender | Reply=20 to group | Reply=20 via web post | Start=20 a new topic
Messages=20 in this topic (9) =
Recent=20 Activity:=20 New=20 Members 4
Visit=20 Your Group
=20
Switch to: Text-Only,=20 Daily=20 Digest =95 Unsubscribe=20 =95 Terms of = Use
.

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