Return-Path: Received: from mtain-mg05.r1000.mx.aol.com (mtain-mg05.r1000.mx.aol.com [172.29.96.205]) by air-md01.mail.aol.com (v128.1) with ESMTP id MAILINMD011-8b744bbcee302f3; Wed, 07 Apr 2010 16:42:24 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 97042380000EE; Wed, 7 Apr 2010 16:42:22 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Nzc3h-00079Z-Bj for rs_out_1@blacksheep.org; Wed, 07 Apr 2010 21:41:09 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Nzc3g-00079Q-Ov for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 21:41:08 +0100 Received: from web28105.mail.ukl.yahoo.com ([217.146.182.125]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Nzc3g-0006NS-Ep for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 21:41:08 +0100 Received: (qmail 77308 invoked by uid 60001); 7 Apr 2010 20:41:02 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1270672862; bh=HqOyrwu9gyYSQ8edxC10V364n8HZfrNEJpFKp82tKPU=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=FOVgutIu6FtXPex1akJqG40zCSUKQ7Wd68+215znkVRx86wXUmRkts8p0DQtrNHedtV4KuGbv9lhXxOuKOMhOI+p46n2JBg7U9UXsw2Tofi7zuHbYEPAbbl7lftuAVlSnoQDGadRKXkFOQG066TfGXeQPEsBXnjCvgr34d+HKUQ= 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=NRFAaA+4RrwdGkmAbdu3h5bOSnooIUoQO27BVGExRASZhR22655/cRTqm2fafWRc4hGXN3figZJrgKBzXM2KWYBCs7yCamOYMGjHcndt+YAYne4Pjxt64/YQJY5nq8oV99Zfmb1O5mvvGk70zZPqv4rSG7yVBJYmhCwwZkddHlU=; Message-ID: <771416.76510.qm@web28105.mail.ukl.yahoo.com> X-YMail-OSG: lA3p83kVM1mx6m5ER7uyNqAmOv5g3G49YLgmWKlGHjhcDw1 nbetMmCqLwrkcLPtwG_M49iK41PCoxWZtGOkXzS5E_YRGoG1fyPwBjzzQD58 .NxYIURjKTCKyey7t7FHiLJc9XUpmM1wyeQjowWgOu23n5GsqO13VJMXGWDd 5OmfUOMGzblOuBSSdvHgtlFEPLOqPR8alQ53O7EoETqDGX_ja.p8yGcKyePG xhsPbUeEfw_ZH1Ec4fH2_vkgoyvfhEDWkizOiUBluTciJAONn Received: from [86.147.176.209] by web28105.mail.ukl.yahoo.com via HTTP; Wed, 07 Apr 2010 13:41:02 PDT X-Mailer: YahooMailClassic/10.0.8 YahooMailWebService/0.8.100.260964 Date: Wed, 7 Apr 2010 13:41:02 -0700 (PDT) From: M0FMT To: rsgb_lf_group@blacksheep.org In-Reply-To: <246800.97010.qm@web28106.mail.ukl.yahoo.com> 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="0-1895274215-1270672862=:76510" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=HTML_MESSAGE, HTML_TAG_EXISTS_TBODY 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-m289.1 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039ac1d60cd4bbcee2e68ec X-AOL-IP: 193.82.116.20 --0-1895274215-1270672862=:76510 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi Group=A0 =A0 I think we have been here before but this is my contribution:- =A0 Do the whole thing with software WSPR - VAC - SDR software - Hardware Tayl= oe detector in reverse using a Multiplex chip. This may not be the simplest technique taking the Applications involved i.= e. writing the software. but it already exists so it is just a matter of= integrating them to make a system. The Tayloe detector exists as a kit by= Softrock. You do need however to=A0amplify linearly from the detector out= put up to final o/p power level.=20 =A0 I use the reverse for WSPR RX on MF and LF. And have played with the TX si= de on 30m at about 1Watt O/P. =A0 I can demonstrate this method if you are interested Chris, assuming=A0watc= hing paint drying (srri=A0I mean WSPR) is the new attraction...hee.=A0 =A0 73 es GL petefmt t@yahoo.co.uk> wrote: From: M0FMT Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner To: rsgb_lf_group@blacksheep.org Date: Wednesday, 7 April, 2010, 20:55 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 --0-1895274215-1270672862=:76510 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
=20 --0-1895274215-1270672862=:76510--
Hi Group 
 
I think we have been here before but this is my contribution:-
 
Do the whole thing with software WSPR - VAC - SDR software - Hardware= Tayloe detector in reverse using a Multiplex chip.
This may not be the simplest technique taking the Applications involv= ed i.e. writing the software. but it already exists so it is just a matter= of integrating them to make a system. The Tayloe detector exists as a kit= by Softrock. You do need however to amplify linearly from the detect= or output up to final o/p power level.
 
I use the reverse for WSPR RX on MF and LF. And have played with the= TX side on 30m at about 1Watt O/P.
 
I can demonstrate this method if you are interested Chris, assuming&n= bsp;watching paint drying (srri I mean WSPR) is the new attraction...= hee. 
 
73 es GL petefmt



t@yahoo.co.uk><= /I> wrote:

From: M0FMT <m0fmt@yahoo.co.uk>
Subje= ct: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner
To: rsgb_= lf_group@blacksheep.org
Date: Wednesday, 7 April, 2010, 20:55

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) 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.or= g [owner-rsgb_lf_gr= oup@blacksheep.org] namens James Moritz [james.moritz@b= topenworld.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 WSPR
via the PIC might be a bit more difficult...
But also at http://www.g4jnt.com/LFUpconv.pdf is Andy's simple ph= asing
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 thr= ough the Forum topics on the WSPRnet.org website (you might have
to sig= n up to see all the material) will reveal many designs for homebrew HF
WSPR beacons that could mostl= y be adapted to 500k.

Cheers, Jim Moritz
73 de M0BMU