Return-Path: Received: from mtain-me07.r1000.mx.aol.com (mtain-me07.r1000.mx.aol.com [172.29.96.143]) by air-di05.mail.aol.com (v128.1) with ESMTP id MAILINDI051-eac64bbce37651; Wed, 07 Apr 2010 15:56:38 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-me07.r1000.mx.aol.com (Internet Inbound) with ESMTP id E71AA38000099; Wed, 7 Apr 2010 15:56:36 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NzbLZ-0006ke-Dh for rs_out_1@blacksheep.org; Wed, 07 Apr 2010 20:55:33 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NzbLY-0006kV-PK for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 20:55:32 +0100 Received: from web28106.mail.ukl.yahoo.com ([217.146.182.126]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1NzbLY-000642-Gn for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 20:55:32 +0100 Received: (qmail 97047 invoked by uid 60001); 7 Apr 2010 19:55:26 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1270670126; bh=7UWCBYtxu3ltVya+a9d91vCoYsKmQ2hIV2nEdQcsO5Y=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=jeq0dU1K0xIheO/GYV+6s1yuHaliXHnyFAfX0/eC7HNkn7BVfNmUt6RB22otMPJVUfQAtVufEZJjZbF6jK3UIjXSV7z85l2JTJXRRw8X1TgJO0j84GOP8gZDXMKGdfuCngNXoz5AMaYKlwkD8dFIelJTj1qh78FjsICqe53ypeA= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=nLqyKkn5MHd54aoJ99G2X8Q5ituhjzPQucX5WPxvZ217Dk3NY6XTcQOIeycj3ZQlv4FyNZR7Kg76ZbUDqE4PyMM+qCLJs/4dD24khrls2aAT/Ol7h/PffWkLKx2G7BCURr3p7MGY3OkJsBk5VC8NtYdu0d/3IJt7rOFKJxTvFeE=; Message-ID: <246800.97010.qm@web28106.mail.ukl.yahoo.com> X-YMail-OSG: WCAtO.kVM1mNDlRIRTLfkY4U3nevuWcG2u8QaVv9vzp7I05 7kftGF6wBpGtxheE3Bg9tUHwMJQKwkzX3J6CQQ.6GBPse6egBczzAt3ODWNj XzOjpkvH_Hd2daQmHbYFuy3SiT7kXyx27jBfH9jVKj8tRHC1JEXu6U1XceuP uM0X0JytE30FRaLrPdai44n4ABNO6U_RP5AOdsWWPoqpqnps_bzKUfjho1E4 2vJYg5Q2eDJCWeAB1fFcTf8Kh1O8P60aZ1aPUohK9nLkCefuU Received: from [86.147.176.209] by web28106.mail.ukl.yahoo.com via HTTP; Wed, 07 Apr 2010 12:55:25 PDT X-Mailer: YahooMailClassic/10.0.8 YahooMailWebService/0.8.100.260964 Date: Wed, 7 Apr 2010 12:55:25 -0700 (PDT) From: M0FMT To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner Content-Type: multipart/alternative; boundary="0-341696919-1270670125=:97010" 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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d231.1 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1d608f4bbce3740951 X-AOL-IP: 193.82.116.20 --0-341696919-1270670125=:97010 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Please see below reply from Joe Taylor on this very subject September last= year, This is the guy who actually wrote this application (you might say= from the Horse Mouth)=A0and he said :- =A0 On Mon, 7/9/09, Joe Taylor wrote: From: Joe Taylor Subject: Re: WSPR To: "M0FMT" Date: Monday, 7 September, 2009, 1:47 PM Hi Peter, > Does your Software have a data output that gives a hi lo i.e 0,1 on the= serial port other than the PTT Hi Lo? No. > If the software doesn't have this facility why not? Because there is no standard, nor even anything remotely approaching one,= that would permit hard-keying an oscillator to produce continuous-phase= 4-FSK with offset 1.465 Hz between tones. The WSPR program, as distributed, is essentially a sound card mode. With that said, it should be noted that a number of people have built spec= ial-purpose WSPR transmitters that implement the necessary 4-tone FSK capa= bility in hardware.=A0 Their keying is typically controlled from a=A0 micr= oprocessor, with the encoded message (sequence of tones) stored in ROM. =A0=A0=A0 -- 73, Joe, K1JT 73 es GL petefmt --- On Wed, 7/4/10, Rik Strobbe wrote: From: Rik Strobbe Subject: RE: LF: WSPR without an SSB TRX ? To: "rsgb_lf_group@blacksheep.org" Date: Wednesday, 7 April, 2010, 14:23 hello Chris, Jim, group, an alternative to a transverted would be a divider, let's say from 5MHz (f= rom a HF tranceiver) to 500kHz. That would limit the hardware to some resistors an a single CMOS or TTL IC= . I have written a small apllication that generates the appropriate WSPR aud= io signal based on the input frequency, output frequency and divider ratio= . It worked fine for some local tests, but due to lack of I did no real "DX= tests" so. But if anyone wants to try this route I will be happy to send the software= . 73, Rik=A0 ON7YD - OR7T ________________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.or= g] namens James Moritz [james.moritz@btopenworld.com] Verzonden: woensdag 7 april 2010 15:09 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: WSPR without an SSB TRX ? Dear Chris, Andy, LF Group, What Andy suggests is fine for generating a WSPR signal, but receiving WSP= R via the PIC might be a bit more difficult... But also at http://www.g4jnt.com/LFUpconv.pdf is Andy's simple phasing up-converter, which could be used to convert a PC audio output to 500kHz= and be used in place of the VCO in your TX. Trawling through the Forum topics on the WSPRnet.org website (you might ha= ve to sign up to see all the material) will reveal many designs for homebrew= HF WSPR beacons that could mostly be adapted to 500k. Cheers, Jim Moritz 73 de M0BMU =20 --0-341696919-1270670125=:97010 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Please see below reply from Joe Taylor= on this very subject September last year, This is the guy who actually wr= ote this application (you might say from the Horse Mouth) and he said= :-
 
On Mon, 7/9/09, Joe Taylor <joe@Princeton.EDU> wr= ote:

From: Joe Taylor <joe@Princeton.EDU>
Subject: Re: WSP= R
To: "M0FMT" <m0fmt@yahoo.co.uk>
Date: Monday, 7 September,= 2009, 1:47 PM

Hi Peter,

> Does your Software have a dat= a output that gives a hi lo i.e 0,1 on the serial port other than the PTT= Hi Lo?

No.

> If the software doesn't have this facility= why not?

Because there is no standard, nor even anything remotely= approaching one, that would permit hard-keying an oscillator to produce= continuous-phase 4-FSK with offset 1.465 Hz between tones.

The WSP= R program, as distributed, is essentially a sound card mode.

With= that said, it should be noted that a number of people have built special-= purpose WSPR transmitters that implement the necessary 4-tone FSK capabili= ty in hardware.  Their keying is typically controlled from a  mi= croprocessor, with the encoded message (sequence of tones) stored in ROM.<= BR>    -- 73, Joe, K1JT

73 es GL petefmt


--- On Wed, 7/4/10, Rik Strobbe <R= ik.Strobbe@fys.kuleuven.be> wrote:

From: Rik Strobbe <Rik.Strobbe@fys.kuleuven= .be>
Subject: RE: LF: WSPR without an SSB TRX ?
To: "rsgb_lf_grou= p@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Wednesday,= 7 April, 2010, 14:23

hello Chris, Jim, group,

an alternative to= a transverted would be a divider, let's say from 5MHz (from a HF tranceiv= er) to 500kHz.
That would limit the hardware to some resistors an a sin= gle CMOS or TTL IC.
I have written a small apllication that generates= the appropriate WSPR audio signal based on the input frequency, output fr= equency and divider ratio.
It worked fine for some local tests, but due= to lack of I did no real "DX tests" so.
But if anyone wants to try thi= s route I will be happy to send the software.

73, Rik  ON7YD= - OR7T

________________________________________
Van: owner-rsgb= _lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] na= mens James Moritz [james.moritz@btopenworld.com]
Verzonden: woensdag 7 april 20= 10 15:09
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: WSPR without= an SSB TRX ?

Dear Chris, Andy, LF Group,

What Andy suggests= is fine for generating a WSPR signal, but receiving WSPR
via the PIC= might be a bit more difficult...

But also at http://www.g4jnt.com/LFUpconv.pdf= is Andy's simple phasing
up-converter, which could be used to conv= ert a PC audio output to 500kHz and
be used in place of the VCO in your TX.

Trawling through the Forum topics on the WSPRnet.org website= (you might have
to sign up to see all the material) will reveal many= designs for homebrew HF
WSPR beacons that could mostly be adapted to= 500k.

Cheers, Jim Moritz
73 de M0BMU

=20 --0-341696919-1270670125=:97010--