Return-Path: Received: from rly-md08.mx.aol.com (rly-md08.mail.aol.com [172.20.29.146]) by air-md04.mail.aol.com (v125.7) with ESMTP id MAILINMD043-91a4b098c20fe; Sun, 22 Nov 2009 14:08:38 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md08.mx.aol.com (v125.7) with ESMTP id MAILRELAYINMD082-91a4b098c20fe; Sun, 22 Nov 2009 14:08:18 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NCHmM-0004xT-F6 for rs_out_1@blacksheep.org; Sun, 22 Nov 2009 19:07:22 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NCHmL-0004xK-Jf for rsgb_lf_group@blacksheep.org; Sun, 22 Nov 2009 19:07:21 +0000 Received: from web28516.mail.ukl.yahoo.com ([87.248.110.195]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1NCHmL-0005XZ-Fu for rsgb_lf_group@blacksheep.org; Sun, 22 Nov 2009 19:07:21 +0000 Received: (qmail 52388 invoked by uid 60001); 22 Nov 2009 19:07:15 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1258916835; bh=uSVzEZcLd5gtJc65qRH+guTwz5VIu0C1//Q6szBtuu0=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=BqqDIaSCHtrNLE37f9M88X1eQaBFCm8QVQsORxNt0TLBx/nbGpRvhfKhSnJHCGeS54qKMaB4tboN1MPKY3X/M+q/jaJDd0gg4j1uc9Vg1eNuYT+GB5aaDT3zuc8V5OMVLhLu8y2ek19mlqCoKVjdP+cP53mxz8P1jgcAfLtVaVA= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=qKQro5SNzFUGllO6Qxr5fjjCpeL4AI2oqQV3urEfRuMkzb/yijiauKnAQzok8wdvdnbtL8S9forXplOHj+fC2nhCuuvKcTW2J2VhjlVS0fKMymIeUhYXUSmTNauMkP/HUxv5DRfiJUpy1/haF0MTz70FqoXlvqbeZC2s7ZCdtsc=; Message-ID: <827245.52377.qm@web28516.mail.ukl.yahoo.com> X-YMail-OSG: uDqcOXQVM1l91sE9czKtoAkomBFWdASct2BtPGXAziodY9iVl00CHDlk_Mlk7bz5751WHpuQ.RUoBS8UX0WS_MR_LYT5I9GFsk9JZJ2l1Td7iRLV_ZuOP7lW.qfOBAd3sZH32ZPj2S98MMhll8tQ3gucE2NEIUGvEGhB5nOZSCuS11Y_vvBKnfukulc3oyJCVAImNJDUslzEXtePnXEftDzRT.xVpMTUTMSZTPnDgZNkbo9SFZaAdb_iF9SOrrKk9RrUt2Cm6gY1RUyRR_bv0qyMcKg_vqsV6YpeoOIQXKsT Received: from [80.6.43.68] by web28516.mail.ukl.yahoo.com via HTTP; Sun, 22 Nov 2009 19:07:15 GMT X-Mailer: YahooMailRC/211.6 YahooMailWebService/0.8.100.260964 References: Date: Sun, 22 Nov 2009 19:07:15 +0000 (GMT) From: Chris Osborn To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: Re: LF: [500 khz] M0JXM & G3XIZ Content-Type: multipart/alternative; boundary="0-930089136-1258916835=:52377" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.6 required=5.0 tests=HTML_40_50,HTML_FONTCOLOR_BLUE, HTML_MESSAGE,MAILTO_TO_SPAM_ADDR 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-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m280.2 ; domain : yahoo.co.uk DKIM : pass --0-930089136-1258916835=:52377 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Thanks for those very interesting measurements Dave. I was running 50 watts of RF to a 40m inverted 'L' at 10m. I've measure my field strength as being 640 mW ERP . .=20 Hopefully these parameters all tie up . .=20 if not then it's back to the drawing board. 73 Chris G3XIZ IO92UB ________________________________ From: Dave G3WCB To: rsgb_lf_group@blacksheep.org Sent: Sun, 22 November, 2009 12:10:45 Subject: LF: [500 khz] M0JXM & G3XIZ =20 Hi,=20 Dennis and Chris. =20 I=20 checked your relative signal strengths during your QSO on 500 kHz this mor= ning,=20 using the Wandel & Golterman SPM-30. M0JXM was averaging -74 dBm, and G3XI= Z=20 was averaging -62 dBm, i.e. 12 dB stronger. If you know how much RF power= you=20 were each using, you can deduce your relative antenna=20 efficiencies. =20 Hope=20 this is useful. =20 73,=20 Dave G3WCB IO91RM -----Original Message----- >From: > owner-rsgb_lf_group@blacksheep.org=20 > [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Dave=20 > G3WCB >Sent: 21 November 2009 11:38 >To: > rsgb_lf_group@blacksheep.org >Subject: LF: [500 khz]=20 > M0JXM... > > >Hi,=20 > Dennis. >=20 >Your=20 > signals are RST 579 here this morning. I can also hear G3DXZ at 349/QSB= , but=20 > he's sending too fast for reliable copy at this end.=20 >=20 > My antenna is a 20m long=20 > double wire "tee" at 5m, and the RX is a W&G SPM-30 with a tuned J310= =20 > pre-amp. 73, Dave G3WCB IO91RM, nr Windsor, s.e.=20 > England >-----Original Message----- >>From: >> owner-rsgb_lf_group@blacksheep.org=20 >> [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of DENNIS=20 >> EASTERLING >>Sent: 18 November 2009 17:16 >>To: >> rsgb_lf_group@blacksheep.org >>Subject: LF: Lost=20 >> QSO >> >> >>Hello Mal >>=20 >>Sorry if I left you in the lurch 16.5=20 >> today, after giving you a report 599 something happened and a single= =20 >> frequency signal came up on top of you and slowly drifted down=20 >> frequency, perhaps someone tuning? >>=20 >>Better luck next time. >>=20 >>73 Dennis=20 >>M0JXM =20 --0-930089136-1258916835=:52377 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Thanks for those very interesting measurements Dave.
I was running 50 watts of RF to a 40m inverted 'L' at 10m.
I've= measure my field strength as being 640 mW ERP . .
Hopefully these par= ameters all tie up . .
if not then it's back to the drawing board.
=
73
Chris G3XIZ
IO92UB

To: rsgb_lf_group@blacksheep.o= rg
Sent: Sun, 22 Novem= ber, 2009 12:10:45
Subject: LF:= [500 khz] M0JXM & G3XIZ

=20 =20
Hi,=20 Dennis and Chris.
 
I=20 checked your relative signal strengths during your QSO on 500 kHz this mor= ning,=20 using the Wandel & Golterman SPM-30. M0JXM was averaging -74 dBm, and= G3XIZ=20 was averaging -62 dBm, i.e. 12 dB stronger. If you know how much RF power= you=20 were each using, you can deduce your relative antenna=20 efficiencies.
 
Hope=20 this is useful.
 
73,=20 Dave G3WCB IO91RM
-----Original Message-----
From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Dave=20 G3WCB
Sent: 21 November 2009 11:38
To:=20 rsgb_lf_group@blacksheep.org
Subject: LF: [500 khz]=20 M0JXM...

Hi,=20 Dennis.
 
Your=20 signals are RST 579 here this morning. I can also hear G3DXZ at 349/QSB,= but=20 he's sending too fast for reliable copy at this end.=20
 
My antenna is a 20m long=20 double wire "tee" at 5m, and the RX is a W&G SPM-30 with a tuned J31= 0=20 pre-amp. 73, Dave G3WCB IO91RM, nr Windsor, s.e= .=20 England
-----Original Message-----
From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of DENNIS= =20 EASTERLING
Sent: 18 November 2009 17:16
To:=20 rsgb_lf_group@blacksheep.org
Subject: LF: Lost=20 QSO

Hello Mal
 
Sorry if I left you in the lurch&= nbsp; 16.5=20 today, after giving you a report 599 something happened and a single= =20 frequency signal came up on top of you and slowly drifted down=20 frequency, perhaps someone tuning?
 
Better luck next time.
 
73 Dennis=20 M0JXM

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