Return-Path: Received: from mtain-dc09.r1000.mx.aol.com (mtain-dc09.r1000.mx.aol.com [172.29.64.137]) by air-db04.mail.aol.com (v129.4) with ESMTP id MAILINDB042-861e4cd68f002ce; Sun, 07 Nov 2010 06:35:28 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc09.r1000.mx.aol.com (Internet Inbound) with ESMTP id 29E0538000089; Sun, 7 Nov 2010 06:35:25 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PF3Vd-0004An-86 for rs_out_1@blacksheep.org; Sun, 07 Nov 2010 11:34:05 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PF3Vc-0004Ae-Ny for rsgb_lf_group@blacksheep.org; Sun, 07 Nov 2010 11:34:04 +0000 Received: from mail-iw0-f171.google.com ([209.85.214.171]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PF3VZ-0003x1-S7 for rsgb_lf_group@blacksheep.org; Sun, 07 Nov 2010 11:34:04 +0000 Received: by iwn38 with SMTP id 38so4319038iwn.16 for ; Sun, 07 Nov 2010 03:34:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=61n3TltlAvOS9Dyd4BByOU3D92eaADxyu9b+hONIcGs=; b=Zh/hP55wh+KBrdO0o/OVRAYcaPVMcY/42sJxItORSR7lk40xKlc9WQ3rjajEYw22Ye h4VdReTQKV7RU2z+3lbqHpYxS1i12YCpsnffuR3/9ezBPj7lnR2RoYGN74/zXZPVlPac iAwXDEG9xw1a3uJ2x3RYDpWuVCw8hr7+6M8Lc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=jZsW5mdSCyd7AO/Jm8CiXo5k37bYY+JlqTEZJhFvMKfDcNw2Cb4yI9pk5ZlFqX5PwM 0xKxRluTXqwajKPS9frLcyyGrGV2iTiYj0uo6A5KTG9CI0sZeGkgSV2A8Xa5rCn06Dpq eoQorwilbZu8D5e2xH31kZTiCgC1QW4EYefSc= MIME-Version: 1.0 Received: by 10.42.241.193 with SMTP id lf1mr2738350icb.17.1289129639269; Sun, 07 Nov 2010 03:33:59 -0800 (PST) Received: by 10.231.79.69 with HTTP; Sun, 7 Nov 2010 03:33:59 -0800 (PST) In-Reply-To: <4CD6856F.7020802@wanadoo.fr> References: <000c01cb7da9$23b1a1e0$8d01a8c0@JAYDELL> <000d01cb7e30$2f5041f0$8d01a8c0@JAYDELL> <4CD6856F.7020802@wanadoo.fr> Date: Sun, 7 Nov 2010 11:33:59 +0000 Message-ID: From: Andy Talbot 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: exciter for 137 and 500 kHz Content-Type: multipart/alternative; boundary=20cf30549db337d5c3049474e23d X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,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-m276.2 ; domain : googlemail.com DKIM : pass x-aol-sid: 3039ac1d40894cd68efc6ab7 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --20cf30549db337d5c3049474e23d Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable yes please. May even help my rusty - learnt-at-evening-class German Andy www.g4jnt.com On 7 November 2010 10:54, cricri wrote: > Hello Andy , > I'll send you a copy of the german UKW version ! > > If you need it . Says and I do ! > > > Formulas are same ... :-) :-) :-) > > 73 > > > Xtian / F1VL > > > Le 07/11/2010 11:03, Andy Talbot a =E9crit : > > Nice little prog - I'd love to see the source code :-) > > Taken from that reference :- > "*The calculations to derive the time constants and therefore the 90 > degree frequencies, and the component values, were based on equations in= the > article by Dr. (Eng) Ralph Oppelt, DB2NP, published in VHF Communication= s > Volume No. 18, Summer, 2/1987.*" > > Does anyone have back copies of VHF Comms ??? > > Andy > www.g4jnt.com > > > On 7 November 2010 03:59, wrote: > >> Andy >> >> It's been a while ... but believe I used this online calculator. >> >> http://www.werewoolf.org.je/apf.htm >> >> Jay >> >> >> >> ----- Original Message ----- >> *From:* Andy Talbot >> *To:* rsgb_lf_group@blacksheep.org >> *Sent:* Saturday, November 06, 2010 9:59 AM >> *Subject:* Re: LF: exciter for 137 and 500 kHz >> >> Very Interesting. >> Where did you find the design data for the allpass network? I've only >> been able to find the values for up to 3+3 allpass stages. >> >> Mind you, at that number of chips a DSPic begins to look attractive. >> >> >> Andy >> www.g4jnt.com >> >> >> On 6 November 2010 11:52, wrote: >> >>> Nothing earth shattering ... another way to skin the cat. The 137 and= 500 >>> kHz units have been in use for a few years ... just now getting around= to >>> the write up. >>> >>> http://www.w1vd.com/137-500Phasingexciter.html >>> >>> Jay W1VD WD2XNS WE2XGR/2 >>> >>> >> > --20cf30549db337d5c3049474e23d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
yes please.=A0=A0
=A0
May even help my rusty - learnt-at-evening-class German
On 7 November 2010 10:54, cricri <cricri.f1vl@wanadoo.fr> wrote:
Hello Andy ,
I'll send yo= u a copy of the german UKW version=A0 !

If you need it . Says and= I do=A0 !


Formulas are same ... :-) = :-) :-)

73


Xtian / F1VL


Le 07/11/2010 11:03, Andy Talbot= a =E9crit=A0:=20
Nice little prog - I'd love to see the source code :-)
=A0
Taken from that reference :-
"The calculations to derive the time constants and therefore= the 90 degree frequencies, and the component values, were based on equati= ons in the article by Dr. (Eng) Ralph Oppelt, DB2NP, published in VHF Comm= unications Volume No. 18, Summer, 2/1987."

Does anyone have back copies of VHF Comms ???

Andy
www.g4jnt.c= om


On 7 November 2010 03:59, <= ;jrusgrove@comc= ast.net> wrote:
Andy
=A0
It's been a while ...=A0but=A0bel= ieve I used this online calculator.
=A0
=A0
Jay
=A0
=A0
----- Original Message -----
From:= Andy Talbot
Sent: Saturday, November 06, 2010= 9:59 AM
Subject: Re: LF: exciter for 137 an= d 500 kHz

Very Interesting.=A0=A0
Where did you find the design data for=A0the allpass network?=A0=A0= I've only been able to find the values for up to 3+3 allpass stages.<= /div>
=A0
Mind you,=A0at that number of=A0chips a DSPic begins to look attracti= ve.
=A0
On 6 November 2010 11:52, <= ;jrusgrove@comc= ast.net> wrote:
Nothing earth sha= ttering ... another way to skin the cat. The 137 and 500 kHz units have be= en in use for a few years ... just now getting around to the write up.

http://www.w1vd.com/137-500Phasingexciter.html

Jay W1VD= =A0WD2XNS =A0WE2XGR/2


<= /div>

<= br> --20cf30549db337d5c3049474e23d--