Return-Path: Received: from mtain-mp02.r1000.mx.aol.com (mtain-mp02.r1000.mx.aol.com [172.29.193.70]) by air-dc02.mail.aol.com (v129.10) with ESMTP id MAILINDC022-86264dbc552432e; Sat, 30 Apr 2011 14:29:56 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 82FF338000084; Sat, 30 Apr 2011 14:29:53 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QGEuY-0004gh-BN for rs_out_1@blacksheep.org; Sat, 30 Apr 2011 19:28:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QGEuX-0004gY-Mb for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2011 19:28:57 +0100 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QGEuU-0001K8-O4 for rsgb_lf_group@blacksheep.org; Sat, 30 Apr 2011 19:28:57 +0100 Received: by iwn8 with SMTP id 8so5854619iwn.16 for ; Sat, 30 Apr 2011 11:28:48 -0700 (PDT) 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=XgpDill8IjgsKlHzEPIooTH91VfvF/MY7cz1SgXCgBc=; b=wpox6HAcFCSojzDtZ2OzRFMfbB3kdI9awvsSk8s5ug0cunjGv1gte44GBKgUGLJZ+L uyTI+CIn22+gPRVh0laR2DARmJXRecjMoHup0jYhSgINuVGx2DKi0YSL6VNz9RCT99vD +SLJntnbItJaPkx24UMZ/lk4cQ64lOclMIPEA= 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=kBNPbJTXJUz3lbDebfkJdi9o5OT6uGNme67fqx/F89SRyHLRflzRzpQHRYDvczXxDL lOKS5wDa9gxoK8PaahuklU95d+fFRt8hZd9m9Fo18JK7MToo0H8jMoi1LRmUdfbvsDgB l+TpBoRcZFjcdnZlGDIj+0J3EFBKqjgwXXG78= MIME-Version: 1.0 Received: by 10.42.141.196 with SMTP id p4mr8120723icu.180.1304188127981; Sat, 30 Apr 2011 11:28:47 -0700 (PDT) Received: by 10.42.221.133 with HTTP; Sat, 30 Apr 2011 11:28:47 -0700 (PDT) In-Reply-To: References: Date: Sat, 30 Apr 2011 19:28:47 +0100 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: RE: 137kHz QRSS30 beaconing still - reports appreciated Content-Type: multipart/alternative; boundary=90e6ba6e869e16b21004a226f6ca X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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-AUTHENTICATION: mail_rly_antispam_dkim-d011.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1dc1464dbc55214791 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --90e6ba6e869e16b21004a226f6ca Content-Type: text/plain; charset=ISO-8859-1 Hi Marcus The loop orientation is approximately W-E with minimum signal to the north and south. You can see a picture of the loop on my video clip at http://www.youtube.com/watch?v=UxEAhqPFBFE although the lower part of the loop has now been moved to the garden fence as my wife kept running into it when gardening! At the highest point the loop is around 12m high running down the garden to a tree where it is about 3-4m above ground. The lower part now runs back along the garden fence about 1.5m above the ground. 73s Roger G3XBM On 30 April 2011 18:55, Markus Vester wrote: > Hi Roger, you will probably be able to pull that crystal some 150 Hz up, > which would get you inside the TA grabber slots. > > BTW what azimuth is the orientation of your loop? > > Best 73, > Markus (DF6NM) > > > *From:* Roger Lapthorn > *Sent:* Saturday, April 30, 2011 6:31 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: LF: RE: 137kHz QRSS30 beaconing still - reports appreciated > > *Dave* > > That is an excellent screen shot - most impressive! I generate the > frequency by dividing a 3.560MHz crystal by 26 and I am unable to measure > the frequency very accurately. It should be 137.6748kHz, but this could be > off a bit. > * > Marcus* > > Next week I shall have a 3.582MHz crystal (30p from GQRP club) which, when > divided by 26, will place me around 137.769kHz which is closer to the window > looked in by the grabbers. > > The beacon produces 2.4W (measured into 50 ohms) and the ERP from the > fairly thin wire loop is estimated as around 50uW. My WSPR beacon produces > around 3dB more. > > 73s > Roger G3XBM > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm https://sites.google.com/site/sub9khz/ --90e6ba6e869e16b21004a226f6ca Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi Marcus

The loop orientation is approximately W-E with minimum si= gnal to the north and south. You can see a picture of the loop on my video= clip at http://w= ww.youtube.com/watch?v=3DUxEAhqPFBFE although the lower part of the lo= op has now been moved to the garden fence as my wife kept running into it= when gardening!=A0 At the highest point the loop is around 12m high runni= ng down the garden to a tree where it is about 3-4m above ground. The lowe= r part now runs back along the garden fence about 1.5m above the ground.
73s
Roger G3XBM

On 30 April 2011= 18:55, Markus Vester <markusvester@aol.com> wrote:
Hi Roger, you=A0will=A0probably be able to pull that crystal some 150 Hz= up,=20 which would get you inside the TA grabber slots.
=A0
BTW what azimuth is the orientation= of=A0your=20 loop?
=A0
Best 73,
Markus (DF6NM)
=A0
=A0
Sent: Saturday, April 30, 2011 6:31 PM
Subject: Re: LF: RE: 137kHz QRSS30 beaconing still - rep= orts=20 appreciated

Dave
<= br>That is an excellent=20 screen shot - most impressive! I generate the frequency by dividing a 3.56= 0MHz=20 crystal by 26 and I am unable to measure the frequency very accurately. It= =20 should be 137.6748kHz, but this could be off a=20 bit.

Marcus

Next week I shall have a 3.582MHz crystal= (30p=20 from GQRP club) which, when divided by 26, will place me around 137.769kHz= which=20 is closer to the window looked in by the grabbers.

The beacon produ= ces=20 2.4W (measured into 50 ohms) and the ERP from the fairly thin wire loop is= =20 estimated as around 50uW. My WSPR beacon produces around 3dB=20 more.

73s
Roger G3XBM




--
http://g3xbm-qrp.blogspot.com/<= br>http://www.g3xbm.c= o.uk
http://www= .youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/
--90e6ba6e869e16b21004a226f6ca--