Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dg03.r1000.mx.aol.com (Internet Inbound) with ESMTP id EBC7B380001AA; Thu, 8 Sep 2011 09:34:24 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1R1ejL-00074i-FB for rs_out_1@blacksheep.org; Thu, 08 Sep 2011 14:33:23 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1R1ejK-00074Z-TM for rsgb_lf_group@blacksheep.org; Thu, 08 Sep 2011 14:33:22 +0100 Received: from mail-qw0-f46.google.com ([209.85.216.46]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1R1ejH-0008Rd-V3 for rsgb_lf_group@blacksheep.org; Thu, 08 Sep 2011 14:33:22 +0100 Received: by qwb7 with SMTP id 7so249309qwb.19 for ; Thu, 08 Sep 2011 06:33:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=TJEvBB4H8y+c3/b7cMdpnDPHPSdAD2vEuwC6Lt4tBic=; b=Q8GWqG+9u+Ndi3bUgP9SJc8qJm9fU+EJ1Czk8mEcQiC/mVuVV5wmBp6efhkN5lSIpj 1AzAjuLly/hMu702qgQVAkiOnC0KBb2O+HmfsD7CJP82IiUgRU+bi1vGbZPB/FkyJmQS Qjpl6toDcJGxEv/aFS899J/2jbZlz9eElm3H4= MIME-Version: 1.0 Received: by 10.68.118.135 with SMTP id km7mr1193060pbb.183.1315488792166; Thu, 08 Sep 2011 06:33:12 -0700 (PDT) Received: by 10.142.125.15 with HTTP; Thu, 8 Sep 2011 06:33:12 -0700 (PDT) In-Reply-To: References: <002001cc6e1b$e0b6caf0$ae01a8c0@youry0mkaz8jaq> <135A26CC-BAEF-411C-9B4A-C7A46810C6A2@gmail.com> <60DADF9AC0654400A3D262FD00F8996C@IBM7FFA209F07C> <4918D1ECBF4A43FDBF13FB205CAA9339@IBM7FFA209F07C> Date: Thu, 8 Sep 2011 14:33:12 +0100 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Re: 137.7682kHz QRSS30 beaconing - reports appreciated Content-Type: multipart/alternative; boundary=f46d044788bb29c21d04ac6e1aa1 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40, HTML_FONTCOLOR_UNSAFE,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: 0:2:521401248:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m269.2 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d410b4e68c45f093a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --f46d044788bb29c21d04ac6e1aa1 Content-Type: text/plain; charset=ISO-8859-1 Photos of (a) the 137kHz QRSS30 beacon and (b) the 137kHz transverter are on my blog page at http://g3xbm-qrp.blogspot.com/2011/09/lf-kit-improvements.html . Subject to test results, both may be tidied up and boxed later. Otherwise it is back to the bench. The PAs run almost cold, whereas my 50 ohm dummy load is very hot, suggesting very good efficiency from the IRF540 device in each case. 73s Roger G3XBM On 8 September 2011 14:19, Roger Lapthorn wrote: > If you are seeing me that would be encouraging Chris as you are in the > worst direction from here for the loop antenna. > > 73s > Roger G3XBM > > > On 8 September 2011 14:14, Chris wrote: > >> OK Roger, >> Thanks and see you put that now! Sorry. >> I am pretty sure I am seeing you, but it's a bit 'iffy'. Will keep an eye >> on it and make some captures. >> Vy 73, >> Chris, G4AYT, Whitstable. >> >> ----- Original Message ----- From: "Roger Lapthorn" < >> rogerlapthorn@gmail.com> >> To: >> Sent: Thursday, September 08, 2011 2:02 PM >> >> Subject: Re: LF: Re: 137.7682kHz QRSS30 beaconing - reports appreciated >> >> >> Probably on until 0800z Friday Chris. >> >> 73s >> Roger G3XBM >> >> Via my iPod Touch 4g 2.4GHz handheld. >> >> On 8 Sep 2011, at 13:34, "Chris" wrote: >> >> How long are you leaving it on, Roger? Looking now. >>> Chris, G4AYT, Whitstable, Kent. >>> ----- Original Message ----- From: "Roger Lapthorn" < >>> rogerlapthorn@gmail.com> >>> To: >>> Sent: Thursday, September 08, 2011 1:23 PM >>> Subject: Re: LF: Re: 137.7682kHz QRSS30 beaconing - reports appreciated >>> >>> >>> Martin/Stefan >>> >>> Many thanks and good luck. >>> >>> There is more ERP to come in a few weeks by increasing the PA supply >>> volts and thickening the loop wire. >>> >>> For now, small steps.... >>> >>> 73s >>> Roger G3XBM >>> >>> >>> >>> Via my iPod Touch 4g 2.4GHz handheld. >>> >>> On 8 Sep 2011, at 12:38, "Martin Evans" >>> wrote: >>> >>> I'll go and get things running on receive now, Roger. >>>> >>>> Who knows, this may be the day! >>>> >>>> Martin GW3UCJ Swansea. >>>> >>>> ##############################**########## >>>> >>>> >>>> >>>> Having increased the ERP of my QRSS30 beacon to ~0.2mW (23W from the >>>>> PA) >>>>> >>>> I'd >>>> >>>>> appreciate any reports please. The beacon is ON now and I hope to >>>>> leave >>>>> >>>> it >>>> >>>>> running from 1130z Thursday - 0800z Friday. >>>>> Roger G3XBM >>>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >> >> > > > -- > http://g3xbm-qrp.blogspot.com/ > http://www.g3xbm.co.uk > http://www.youtube.com/user/g3xbm > https://sites.google.com/site/sub9khz/ > > -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/g3xbm https://sites.google.com/site/sub9khz/ --f46d044788bb29c21d04ac6e1aa1 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Photos of (a) the 137kHz QRSS30 beacon and (b) the 137kHz transverter are o= n my blog page at http://g3xbm-qrp.blogspot.com/2011/09/lf-kit-improvements= .html .=A0 Subject to test results, both may be tidied up and boxed lat= er. Otherwise it is back to the bench.

The PAs run almost cold, whereas my 50 ohm dummy load is very hot, sugg= esting very good efficiency from the IRF540 device in each case.

73= s
Roger G3XBM




On 8 Septemb= er 2011 14:19, Roger Lapthorn <rogerlapthorn@gmail.com> wrote:
If you are seeing me that would be encourag= ing Chris as you are in the worst direction from here for the loop antenna.=

73s
Roger G3XBM


On 8 September 2011 14:14, Chris <c.ashby435@btin= ternet.com> wrote:
OK Roger,
Thanks and see you put that now! Sorry.
I am pretty sure I am seeing you, but it's a bit 'iffy'. Will k= eep an eye on it and make some captures.
Vy 73,
Chris, G4AYT, Whitstable.

----- Original Message ----- From: "Roger Lapthorn" <rogerlapthorn@gmail.c= om>
To: <r= sgb_lf_group@blacksheep.org>
Sent: Thursday, September 08, 2011 2:02 PM

Subject: Re: LF: Re: 137.7682kHz QRSS30 beaconing - reports appreciated


Probably on until 0800z Friday Chris.

73s
Roger G3XBM

Via my iPod Touch 4g 2.4GHz handheld.

On 8 Sep 2011, at 13:34, "Chris" <c.ashby435@btinternet.com> wrote:=

How long are you leaving it on, Roger? Looking now.
Chris, G4AYT, Whitstable, Kent.
----- Original Message ----- From: "Roger Lapthorn" <rogerlapthorn@gmail.c= om>
To: <r= sgb_lf_group@blacksheep.org>
Sent: Thursday, September 08, 2011 1:23 PM
Subject: Re: LF: Re: 137.7682kHz QRSS30 beaconing - reports appreciated


Martin/Stefan

Many thanks and good luck.

There is more ERP to come in a few weeks by increasing the PA supply volts = and thickening the loop wire.

For now, small steps....

73s
Roger G3XBM



Via my iPod Touch 4g 2.4GHz handheld.

On 8 Sep 2011, at 12:38, "Martin Evans" <books@mollies.freeserve.co.uk= > wrote:

I'll go and get things running on receive now, Roger.

Who knows, this may be the day!

Martin =A0GW3UCJ Swansea.

########################################



Having increased the ERP of my QRSS30 beacon to ~0.2mW (23W from the PA)
I'd
appreciate any reports please. =A0The beacon is ON now and I hope to leave<= br>
it
running =A0from 1130z Thursday - 0800z Friday.
Roger G3XBM











--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.= youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/




--
http://g3xbm-qrp.blogspot.com/=
http://www.g3x= bm.co.uk
http://www.= youtube.com/user/g3xbm
https://sites.google.com/site/sub9khz/

--f46d044788bb29c21d04ac6e1aa1--