Return-Path: Received: from rly-dc08.mx.aol.com (rly-dc08.mail.aol.com [172.19.136.37]) by air-dc07.mail.aol.com (v121_r4.4) with ESMTP id MAILINDC072-b3c496463a7eb; Wed, 07 Jan 2009 03:11:28 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dc08.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDC088-b3c496463a7eb; Wed, 07 Jan 2009 03:11:22 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LKTV8-0002mp-5Y for rs_out_1@blacksheep.org; Wed, 07 Jan 2009 08:10:54 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LKTV7-0002mg-Km for rsgb_lf_group@blacksheep.org; Wed, 07 Jan 2009 08:10:53 +0000 Received: from cavuit02.kulnet.kuleuven.be ([134.58.240.44]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LKTV5-0002Fa-Hl for rsgb_lf_group@blacksheep.org; Wed, 07 Jan 2009 08:10:53 +0000 Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id B383A51C011 for ; Wed, 7 Jan 2009 09:10:40 +0100 (CET) Received: from smtps02.kuleuven.be (localhost [127.0.0.1]) by smtps02.kuleuven.be (Postfix) with ESMTP id 776F5F3863 for ; Wed, 7 Jan 2009 09:10:40 +0100 (CET) Received: from dell-rik.fys.kuleuven.be (dhcp-10-33-85-199.fys.kuleuven.be [10.33.85.199]) by smtps02.kuleuven.be (Postfix) with ESMTP id 2FA89F3862 for ; Wed, 7 Jan 2009 09:10:40 +0100 (CET) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Wed, 07 Jan 2009 09:11:17 +0100 To: rsgb_lf_group@blacksheep.org X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: <1LKLYw-0Bsx4S0@fwd08.t-online.de> References: <1LKLYw-0Bsx4S0@fwd08.t-online.de> Mime-Version: 1.0 Message-Id: <20090107081040.2FA89F3862@smtps02.kuleuven.be> X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Karma: 0: X-Spam-Score: 0.5 (/) X-Spam-Report: autolearn=disabled,HTML_FONT_FACE_BAD=0.452,HTML_MESSAGE=0.001 Subject: Re: LF: Razor blade RX .... Try a Cohere? Content-Type: multipart/alternative; boundary="=====================_55902187==.ALT" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=CLICK_BELOW,HTML_20_30, HTML_LINK_CLICK_HERE,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 --=====================_55902187==.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed MCW: what a waste of bandwidth, Mal will allert OFCOM ! 73, Rik ON7YD - OR7T At 00:42 7/01/2009, you wrote: > No problem! Use MCW! Has been typical for 500 kHz. > >73 DJ1ZB > > > "M0FMT" schrieb: >Hi Mal and LF > >I am disapointed in you Mal to be considering an envelope detector. >A true CW man, I would have thought, should only entertain the use >of a Cohere detector! > >Having played with them, I was surprised how well they work over a >range 136kc/s to 433mc/s (the extent of my power RF O/P) probably >work over a much lager range of frequencies but not tested by me. > >http://home.earthlink.net/~lenyr/coherer.htm > >73 pefmt > > > > > >--- On Tue, 6/1/09, mal hamilton wrote: >From: mal hamilton >Subject: Re: LF: Razor blade RX >To: rsgb_lf_group@blacksheep.org >Date: Tuesday, 6 January, 2009, 9:21 PM > >Your own cct and ideas and the headphone construction. Not info from the web. >g3kev > >----- Original Message ----- >From: riese-k3djc@juno.com >To: rsgb_lf_group@blacksheep.org >Sent: Tuesday, January 06, 2009 7:58 PM >Subject: Re: LF: Razor blade RX > >310113517964 E bay too > >On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" ><g3kevmal@talktalk.net> writes: >Since I mentioned a Razor blade and fence wire RX a while back I >have had several requests for a circuit. To give others the >opportunity to submit a cct I will await replies. This method was >used successfully at Coldiz and other POW camps to receive BBC broadcasts. >Let us know how you would approach the subject. This is applicable >to MF/LF since the broadcasts at the time were receicved on these bands. >Build one and have a QSO using this RX >g3kev > > > > > >____________________________________________________________ >Fashion >Design Education - Click Here! > >---------- > >No virus found in this incoming message. >Checked by AVG - http://www.avg.com >Version: 8.0.176 / Virus Database: 270.10.3/1877 - Release Date: >1/5/2009 7:20 PM > > > Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm --=====================_55902187==.ALT Content-Type: text/html; charset="us-ascii" MCW: what a waste of bandwidth, Mal will allert OFCOM !

73, Rik  ON7YD - OR7T

At 00:42 7/01/2009, you wrote:
 No problem! Use MCW! Has been typical for 500 kHz.

73 DJ1ZB


 "M0FMT" <m0fmt@yahoo.co.uk> schrieb:
Hi Mal and LF
 
I am disapointed in you Mal to be considering an envelope detector. A true CW man, I would have thought, should only entertain the use of a Cohere detector!
 
Having played with them, I was surprised how well they work over a range 136kc/s to 433mc/s (the extent of my power RF O/P) probably work over a much lager range of frequencies but not tested by me.
 
http://home.earthlink.net/~lenyr/coherer.htm
 
73 pefmt


 


--- On Tue, 6/1/09, mal hamilton <g3kevmal@talktalk.net> wrote:
From: mal hamilton <g3kevmal@talktalk.net>
Subject: Re: LF: Razor blade RX
To: rsgb_lf_group@blacksheep.org
Date: Tuesday, 6 January, 2009, 9:21 PM

Your own cct and ideas and the headphone construction. Not info from the web.
g3kev
 
----- Original Message -----
From: riese-k3djc@juno.com
To: rsgb_lf_group@blacksheep.org
Sent: Tuesday, January 06, 2009 7:58 PM
Subject: Re: LF: Razor blade RX

310113517964   E bay too
 
On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton" <g3kevmal@talktalk.net> writes:
Since I mentioned a Razor blade and fence wire RX a while back I have had several requests for a circuit. To give others the opportunity to submit a cct I will await replies. This method was used successfully  at Coldiz and other POW camps to receive BBC broadcasts.
Let us know how you would approach the subject. This is applicable to MF/LF since the broadcasts at the time were receicved on these bands.
Build one and have a QSO using this RX
g3kev
 
 



____________________________________________________________
Fashion Design Education - Click Here!

No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.3/1877 - Release Date: 1/5/2009 7:20 PM


 


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