Return-Path: Received: from rly-me07.mx.aol.com (rly-me07.mail.aol.com [172.20.83.41]) by air-me07.mail.aol.com (v121.4) with ESMTP id MAILINME072-9c94781e7ba2b5; Mon, 07 Jan 2008 03:50:09 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-me07.mx.aol.com (v121.4) with ESMTP id MAILRELAYINME075-9c94781e7ba2b5; Mon, 07 Jan 2008 03:50:03 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JBnfy-0005do-GW for rs_out_1@blacksheep.org; Mon, 07 Jan 2008 08:49:42 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JBnfx-0005df-Qp for rsgb_lf_group@blacksheep.org; Mon, 07 Jan 2008 08:49:41 +0000 Received: from smtp-out2.blueyonder.co.uk ([195.188.213.5]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JBnft-0006Gs-58 for rsgb_lf_group@blacksheep.org; Mon, 07 Jan 2008 08:49:41 +0000 Received: from [172.23.170.145] (helo=anti-virus03-08) by smtp-out2.blueyonder.co.uk with smtp (Exim 4.52) id 1JBnfs-0002q8-LH for rsgb_lf_group@blacksheep.org; Mon, 07 Jan 2008 08:49:36 +0000 Received: from [82.40.42.71] (helo=p4) by asmtp-out1.blueyonder.co.uk with esmtp (Exim 4.52) id 1JBnUG-0002j9-Pg for rsgb_lf_group@blacksheep.org; Mon, 07 Jan 2008 08:37:36 +0000 Received: from 127.0.0.1 (AVG SMTP 7.5.516 [269.17.13/1211]); Mon, 07 Jan 2008 08:37:36 +0000 Message-ID: <00bc01c85108$8e258170$6401a8c0@p4> From: "Mark" To: References: <000001c84faf$f02de5b0$0301a8c0@shack> <219313.75403.qm@web26003.mail.ukl.yahoo.com> <20080106001112.6b836a89@lurcher.twatt.local> <8bf118410801061558h35df3d58r3b75e6bd0713df58@mail.gmail.com> Date: Mon, 7 Jan 2008 08:37:36 -0000 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 Mime-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: 500 grabbers Content-Type: multipart/mixed; boundary="=======AVGMAIL-4781E4D02246=======" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=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-IP: 193.82.116.20 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : ? --=======AVGMAIL-4781E4D02246======= Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B9_01C85108.8E0B42B0" ------=_NextPart_000_00B9_01C85108.8E0B42B0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Gents, having now built 2 of the softrock systems, I can recommend them for use as=20= grabbers. Being image cancelling systems they interface directly with the PC= soundcard and all the clever stuff is done by Spectrum lab (or software of=20= your choice that supports I & Q input). With a bog standard soundcard you ca= n get a display of +- 20 odd KHz from the centre freq. There is no AGC probl= em, as observed on other grabbers, and current consumption in minimal (about= 35mA inc a preamp which I fitted when I had a problem that turned out to be= the antenna). I received my kit a few days before Christmas, so a grabber c= an be set up in a reasonable timescale! These units are available direct from Tony Parks KB9YIG raparks%ctcisp.com=20= $13 inc shipping if I recall, for the 455KHz version (you then simply substi= tute a cheap 4MHz crystal for the one supplied) coverage is the 500KHz +- 20= KHz, I have chosen to display only 501 to 509 so as to be able to distingui= sh the close spaced beacons around 505 These are kits and they do use some surface mount components, but the end re= sult is a compact and highly effective receiver ideally suited to this appli= cation. Mine is even powered directly off the computer 12V line It would be great to see a grabber in the deep south, and coverage of the 50= 5 beacons included, which to me is perhaps the most interesting aspect of th= e use for these things substitute @ for % on Tony's email address. Cheers Mark GM4ISM ----- Original Message -----=20 From: Dave Pick=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Sunday, January 06, 2008 11:58 PM Subject: Re: LF: 500 grabbers Chaps On the subject of grabbers, I've swapped the receivers over so the TS850 i= s on the 500k grabber at the moment which means I can open up the IF a bit a= nd display the whole band (at the request of Finbar whose beacon was off the= bottom before!)=20 73 --=20 G3YXM IO92BK Birmingham UK=20 ----------------------------------------------------------------------------= -- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1211 - Release Date: 06/01/20= 08 11:57 ------=_NextPart_000_00B9_01C85108.8E0B42B0 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Gents,
having now built 2 of the softrock systems,= I can=20 recommend them for use as grabbers. Being image cancelling systems they=20 interface directly with the PC soundcard and all the clever stuff is done by= =20 Spectrum lab (or software of your choice that supports I & Q input). Wit= h a=20 bog standard soundcard you can get a display of +- 20 odd KHz from the centr= e=20 freq. There is no AGC problem, as observed on other grabbers, and current=20 consumption in minimal (about 35mA inc a preamp which I fitted when I had a=20 problem that turned out to be the antenna). I received my kit a few days bef= ore=20 Christmas, so a grabber can be set up in a reasonable timescale!
These units are available direct from Tony=20= Parks=20 KB9YIG  raparks%ctcisp.com&nb= sp;$13=20 inc shipping if I recall, for the 455KHz version (you then simply=20 substitute a cheap 4MHz crystal for the one supplied) coverage is the=20 500KHz +- 20 KHz, I have chosen to display only 501 to 509 so as to be able=20= to=20 distinguish the close spaced beacons around 505
These are kits and they do use some surface= mount=20 components, but the end result is a compact and highly effective receiver=20 ideally suited to this application. Mine is even powered directly off the=20 computer 12V line
It would be great to see a grabber in the d= eep=20 south, and coverage of the 505 beacons included, which to me is perhaps= the=20 most interesting aspect of the use for these things
substitute @ for % on Tony's email=20 address.
Cheers
Mark GM4ISM
----- Original Message -----
D= ave=20 Pick
Sent: Sunday, January 06, 2008 11:5= 8=20 PM
Subject: Re: LF: 500 grabbers

Chaps

On the subject of grabbers, I've swapped the=20 receivers over so the TS850 is on the 500k grabber at the moment which mea= ns I=20 can open up the IF a bit and display the whole band (at the request of Fin= bar=20 whose beacon was off the bottom before!)

73

--=20
G3YXM IO92BK Birmingham UK=20

No virus found in this incoming message.
Checked by AVG Free=20 Edition.
Version: 7.5.516 / Virus Database: 269.17.13/1211 - Release D= ate:=20 06/01/2008 11:57
------=_NextPart_000_00B9_01C85108.8E0B42B0-- --=======AVGMAIL-4781E4D02246======= Content-Type: text/plain; x-avg=cert; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-Description: "AVG certification" No virus found in this outgoing message. Checked by AVG Free Edition.=20 Version: 7.5.516 / Virus Database: 269.17.13/1211 - Release Date: 06/01/2008= 11:57 --=======AVGMAIL-4781E4D02246=======--