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Message-ID: <15055.69446.qm@web28103.mail.ukl.yahoo.com>
Date: Wed, 7 Apr 2010 16:03:53 -0700 (PDT)
From: M0FMT <m0fmt@yahoo.co.uk>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <000001cad6a2$66c84f50$0202a8c0@laptopcore2>
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Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner
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Hi Eddie
I have mentioned your method of using the 74HC84 chip with two xtals in an=
 earlier Mail. I think I understand that way of generating the WSPR signal=
 but the "magic" is in the PIC program. Have you ever considered offering=
 programed PIC because I would like to try your method. I am guessing the=
 PIC just carries your call, loc and power and is not alterable with out=
 reprogramming the chip?
Have you written your rig up anywhere? I saw the 6m experiment article but=
 as far as I could see it was a means of eliminating the PC and soundcard=
 the output being a 1500c/s tone 4 FSK phase shited.
Anyway a very interesting practical solution.

73 es GL petefmt

--- On Wed, 7/4/10, g3zjo <g3zjo@npton.plus.com> wrote:


From: g3zjo <g3zjo@npton.plus.com>
Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner
To: rsgb_lf_group@blacksheep.org
Date: Wednesday, 7 April, 2010, 23:33








Hi Chris
=C2=A0
Just a bit more for you to mull over.=20
=C2=A0
I don=E2=80=99t think anyone has mentioned the MP3 approach where a 2min=
 WSPR data stream is recorded at audio and used to modulate the TX with su=
itable start stop timing.
=C2=A0
Then there is my audio WSPR system which I call the XORgan, this generates=
 WSPR at audio at a very stable base frequency derived from the difference=
 between 2 identical xtals, one pulled 1,500Hz the other modulated, using=
 an XOR chip.
=C2=A0
Then there is Gene Marcus follow on of that idea with the tones generated=
 directly by an audio oscillator, its frequency being varied by WSPR code.
Both of these methods need the WSPR to be coded in a PIC.
=C2=A0
As I understand your application, with VCO facility there is no need for=
 the audio mixing you mention, just use the PIC to modulate the VCO.=20
My WSPR on 503.810kHz uses this method, no GPS clocking just some accurate=
 timing in the programming which has been running now for 2 years, recentl=
y I have had to attack the capacitance values due to Xtal ageing, it had=
 gone outside the range of the trimmer. The timing thus needed correction=
 within 24 hours, today, now I have done the mod, I did a reset after 4 da=
ys whether it needed it or not.
=C2=A0
73
=C2=A0

Eddie G3ZJO
=C2=A0
-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@black=
sheep.org] On Behalf Of Chris Osborn
Sent: 07 April 2010 22:41
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner
=C2=A0


Many thanks for all the contributions and suggestions.
I have been reading them and trying to understand but I am no 'boffin'.

Basically I have a 'decent' PC and appear to be receiving WSPR ok.
My rig is home built with a DC receiver and a simple CW type TX with VCO=
 facility.

I am not at home with PIC's or programming and was hoping someone would co=
me
up with an analogue solution.
I know I need to do more 'reading up' but was trying the lazy-man's approa=
ch.

My initial thoughts were that the PC is giving out a 1500 Hz tone + / - 5=
 Hz.
This is used to generate USB signals from an SSB TX (?)
I was hoping to mix these tones with a stable frequency of 1400 Hz (say)=
 ending up
with 100 Hz + / - 5 Hz - thence to an F-V converter - gain / level adjuste=
d and thence
to the TX VCO input.

Ready and awaiting the brickbats.

73 Chris G3XIZ

=C2=A0




From: M0FMT <m0fmt@yahoo.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Wed, 7 April, 2010 21:41:02
Subject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner





Hi Group=C2=A0

=C2=A0

I think we have been here before but this is my contribution:-

=C2=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=C2=A0amplify linearly from the detector=
 output up to final o/p power level.=20

=C2=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.

=C2=A0

I can demonstrate this method if you are interested Chris, assuming=C2=A0w=
atching paint drying (srri=C2=A0I mean WSPR) is the new attraction...hee.=
=C2=A0

=C2=A0

73 es GL petefmt



t@yahoo.co.uk> wrote:


From: M0FMT <m0fmt@yahoo.co.uk>
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)=C2=A0and he said :-

=C2=A0

On Mon, 7/9/09, Joe Taylor <joe@Princeton.EDU> wrote:

From: Joe Taylor <joe@Princeton.EDU>
Subject: Re: WSPR
To: "M0FMT" <m0fmt@yahoo.co.uk>
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.=C2=A0 Their keying is typically controlled from a=C2=
=A0 microprocessor, with the encoded message (sequence of tones) stored in=
 ROM.
=C2=A0=C2=A0=C2=A0 -- 73, Joe, K1JT


73 es GL petefmt



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


From: Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>
Subject: RE: LF: WSPR without an SSB TRX ?
To: "rsgb_lf_group@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 (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=C2=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

=C2=A0
=C2=A0
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.800 / Virus Database: 271.1.1/2796 - Release Date: 04/07/10=
 07:32:00



     =20

--0-1278219389-1270681433=:69446
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<table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D=
"top" style=3D"font: inherit;"><DIV>Hi Eddie</DIV>
<DIV>I have mentioned your method of using the 74HC84 chip with two xtals=
 in an earlier Mail. I think I understand that way of generating the WSPR=
 signal but the "magic" is in the PIC program. Have you ever considered of=
fering programed PIC because I would like to try your method. I am guessin=
g the PIC just carries your call, loc and power and is not alterable with=
 out reprogramming the chip?</DIV>
<DIV>Have you written your rig up anywhere? I saw the 6m experiment articl=
e but as far as I could see it was a means of eliminating the PC and sound=
card the output being a 1500c/s tone 4 FSK phase shited.</DIV>
<DIV>Anyway a very interesting practical solution.<BR><BR>73 es GL petefmt=
<BR><BR>--- On <B>Wed, 7/4/10, g3zjo <I>&lt;g3zjo@npton.plus.com&gt;</I></=
B> wrote:<BR></DIV>
<BLOCKQUOTE style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT:=
 5px; MARGIN-LEFT: 5px"><BR>From: g3zjo &lt;g3zjo@npton.plus.com&gt;<BR>Su=
bject: RE: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner<BR>To: rs=
gb_lf_group@blacksheep.org<BR>Date: Wednesday, 7 April, 2010, 23:33<BR><BR=
>
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<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Hi Chris</SPAN></FON=
T></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Just a bit more for=
 you to mull over. </SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">I don=E2=80=99t thin=
k anyone has mentioned the MP3 approach where a 2min WSPR data stream is=
 recorded at audio and used to modulate the TX with suitable start stop ti=
ming.</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Then there is my aud=
io WSPR system which I call the XORgan, this generates WSPR at audio at a=
 very stable base frequency derived from the difference between 2 identica=
l xtals, one pulled 1,500Hz the other modulated, using an XOR chip.</SPAN>=
</FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Then there is Gene=
 Marcus follow on of that idea with the tones generated directly by an aud=
io oscillator, its frequency being varied by WSPR code.</SPAN></FONT></DIV=
>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Both of these method=
s need the WSPR to be coded in a PIC.</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">As I understand your=
 application, with VCO facility there is no need for the audio mixing you=
 mention, just use the PIC to modulate the VCO. </SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">My WSPR on 503.810kH=
z uses this method, no GPS clocking just some accurate timing in the progr=
amming which has been running now for 2 years, recently I have had to atta=
ck the capacitance values due to Xtal ageing, it had gone outside the rang=
e of the trimmer. The timing thus needed correction within 24 hours, today=
, now I have done the mod, I did a reset after 4 days whether it needed it=
 or not.</SPAN></FONT></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">73</SPAN></FONT></DI=
V>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<DIV>
<P class=3DMsoAutoSig><B><I><FONT color=3Dnavy size=3D3 face=3D"Times New=
 Roman"><SPAN style=3D"FONT-STYLE: italic; COLOR: navy; FONT-SIZE: 12pt;=
 FONT-WEIGHT: bold">Eddie</SPAN></FONT></I></B><B><I><FONT color=3Dnavy><S=
PAN style=3D"FONT-STYLE: italic; COLOR: navy; FONT-WEIGHT: bold"> G3ZJO</S=
PAN></FONT></I></B></DIV></DIV>
<P class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN style=
=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT>=
</DIV>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D2 face=3DTah=
oma><SPAN style=3D"FONT-FAMILY: Tahoma; FONT-SIZE: 10pt" lang=3DEN-US>----=
-Original Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: bold">From:</SPAN=
></B> owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@black=
sheep.org] <B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Ch=
ris Osborn<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> 07 Apr=
il 2010 22:41<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> rsgb_=
lf_group@blacksheep.org<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Subject:</=
SPAN></B> Re: LF: WSPR without an SSB TRX ? FRM Joe Taylor NPwinner</SPAN>=
</FONT></DIV>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D3 face=3D"Ti=
mes New Roman"><SPAN style=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV>
<DIV>
<DIV>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D3 face=3D"Ti=
mes New Roman"><SPAN style=3D"FONT-SIZE: 12pt">Many thanks for all the con=
tributions and suggestions.<BR>I have been reading them and trying to unde=
rstand but I am no 'boffin'.<BR><BR>Basically I have a 'decent' PC and app=
ear to be <U>receiving</U> WSPR ok.<BR>My rig is home built with a DC rece=
iver and a simple CW type TX with VCO facility.<BR><BR>I am not at home wi=
th PIC's or programming and was hoping someone would come<BR>up with an an=
alogue solution.<BR>I know I need to do more 'reading up' but was trying=
 the lazy-man's approach.<BR><BR>My initial thoughts were that the PC is=
 giving out a 1500 Hz tone + / - 5 Hz.<BR>This is used to generate USB sig=
nals from an SSB TX (?)<BR>I was hoping to mix these tones with a stable=
 frequency of 1400 Hz (say) ending up<BR>with 100 Hz + / - 5 Hz - thence=
 to an F-V converter - gain / level adjusted and thence<BR>to the TX VCO=
 input.<BR><BR>Ready and
 awaiting the brickbats.<BR><BR>73 Chris G3XIZ</SPAN></FONT></DIV></DIV>
<DIV>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D3 face=3D"Ti=
mes New Roman"><SPAN style=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV>
<DIV>
<DIV style=3D"TEXT-ALIGN: center; MARGIN-LEFT: 36pt" class=3DMsoNormal ali=
gn=3Dcenter><FONT size=3D2 face=3DTahoma><SPAN style=3D"FONT-FAMILY: Tahom=
a; FONT-SIZE: 10pt">
<HR align=3Dcenter SIZE=3D1 width=3D"100%">
</SPAN></FONT></DIV>
<P style=3D"MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm" cla=
ss=3DMsoNormal><B><FONT size=3D2 face=3DTahoma><SPAN style=3D"FONT-FAMILY:=
 Tahoma; FONT-SIZE: 10pt; FONT-WEIGHT: bold">From:</SPAN></FONT></B><FONT=
 size=3D2 face=3DTahoma><SPAN style=3D"FONT-FAMILY: Tahoma; FONT-SIZE: 10p=
t"> M0FMT &lt;m0fmt@yahoo.co.uk&gt;<BR><B><SPAN style=3D"FONT-WEIGHT: bold=
">To:</SPAN></B> rsgb_lf_group@blacksheep.org<BR><B><SPAN style=3D"FONT-WE=
IGHT: bold">Sent:</SPAN></B> Wed, 7 April, 2010 21:41:02<BR><B><SPAN style=
=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: LF: WSPR without an SSB TRX=
 ? FRM Joe Taylor NPwinner</SPAN></FONT></DIV>
<TABLE style=3D"WIDTH: 415.3pt; MARGIN-LEFT: 36pt" class=3DMsoNormalTable=
 border=3D0 cellSpacing=3D0 cellPadding=3D0 width=3D554>
<TBODY>
<TR>
<TD style=3D"PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm;=
 PADDING-TOP: 0cm; font-size-adjust: inherit; font-stretch: inherit" vAlig=
n=3Dtop>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">Hi Group&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">I think we have been here before but this=
 is my contribution:-</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">Do the whole thing with software WSPR - VAC=
 - SDR software - Hardware Tayloe detector in reverse using a Multiplex ch=
ip.</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">This may not be the simplest technique taki=
ng the Applications involved i.e. writing the software. but it already exi=
sts so it is just a matter of integrating them to make a system. The Taylo=
e detector exists as a kit by Softrock. You do need however to&nbsp;amplif=
y linearly from the detector output up to final o/p power level. </SPAN></=
FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">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.</SPAN></FONT>=
</DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">I can demonstrate this method if you are in=
terested Chris, assuming&nbsp;watching paint drying (srri&nbsp;I mean WSPR=
) is the new attraction...hee.&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3Dinherit><SPAN style=3D"FONT-FAM=
ILY: inherit; FONT-SIZE: 12pt">73 es GL petefmt<BR><BR><BR><BR><B><I><SPAN=
 style=3D"FONT-STYLE: italic; FONT-WEIGHT: bold">t@yahoo.co.uk&gt;</SPAN><=
/I></B> wrote:</SPAN></FONT></DIV></DIV>
<BLOCKQUOTE style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: #1010ff 1.5p=
t solid; PADDING-BOTTOM: 0cm; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; PADDING-=
RIGHT: 0cm; MARGIN-BOTTOM: 5pt; MARGIN-LEFT: 3.75pt; BORDER-TOP: medium no=
ne; BORDER-RIGHT: medium none; PADDING-TOP: 0cm">
<P style=3D"MARGIN-BOTTOM: 12pt" class=3DMsoNormal><FONT size=3D3 face=3Di=
nherit><SPAN style=3D"FONT-FAMILY: inherit; FONT-SIZE: 12pt"><BR>From: M0F=
MT &lt;m0fmt@yahoo.co.uk&gt;<BR>Subject: RE: LF: WSPR without an SSB TRX=
 ? FRM Joe Taylor NPwinner<BR>To: rsgb_lf_group@blacksheep.org<BR>Date: We=
dnesday, 7 April, 2010, 20:55</SPAN></FONT></DIV>
<DIV id=3Dyiv707666767>
<TABLE class=3DMsoNormalTable border=3D0 cellSpacing=3D0 cellPadding=3D0>
<TBODY>
<TR>
<TD style=3D"PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm;=
 PADDING-TOP: 0cm" vAlign=3Dtop>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt">Please see below reply from Joe Taylor on this very=
 subject September last year, This is the guy who actually wrote this appl=
ication (you might say from the Horse Mouth)&nbsp;and he said :-</SPAN></F=
ONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV></DIV>
<DIV>
<P style=3D"MARGIN-BOTTOM: 12pt" class=3DMsoNormal><FONT size=3D3 face=3D"=
Times New Roman"><SPAN style=3D"FONT-SIZE: 12pt">On <B><SPAN style=3D"FONT=
-WEIGHT: bold">Mon, 7/9/09, Joe Taylor <I><SPAN style=3D"FONT-STYLE: itali=
c">&lt;joe@Princeton.EDU&gt;</SPAN></I></SPAN></B> wrote:<BR><BR>From: Joe=
 Taylor &lt;joe@Princeton.EDU&gt;<BR>Subject: Re: WSPR<BR>To: "M0FMT" &lt;=
m0fmt@yahoo.co.uk&gt;<BR>Date: Monday, 7 September, 2009, 1:47 PM</SPAN></=
FONT></DIV></DIV>
<BLOCKQUOTE style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: #1010ff 1.5p=
t solid; PADDING-BOTTOM: 0cm; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; PADDING-=
RIGHT: 0cm; MARGIN-BOTTOM: 5pt; MARGIN-LEFT: 3.75pt; BORDER-TOP: medium no=
ne; BORDER-RIGHT: medium none; PADDING-TOP: 0cm">
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt">Hi Peter,<BR><BR>&gt; 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?<BR><BR>No.<BR><BR>&gt; If the software doesn't have this facility=
 why not?<BR><BR>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.<BR><BR>The WSP=
R program, as distributed, is essentially a sound card mode.<BR><BR>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.&nbsp; Their keying is typically controlled from a&nbsp; mi=
croprocessor, with the encoded message (sequence of tones) stored in ROM.<=
BR>&nbsp;&nbsp;&nbsp; -- 73, Joe, K1JT</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt"><BR>73 es GL petefmt</SPAN></FONT></DIV></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt"><BR><BR>--- On <B><SPAN style=3D"FONT-WEIGHT: bold">W=
ed, 7/4/10, Rik Strobbe <I><SPAN style=3D"FONT-STYLE: italic">&lt;Rik.Stro=
bbe@fys.kuleuven.be&gt;</SPAN></I></SPAN></B> wrote:</SPAN></FONT></DIV></=
DIV></BLOCKQUOTE>
<BLOCKQUOTE style=3D"BORDER-BOTTOM: medium none; BORDER-LEFT: #1010ff 1.5p=
t solid; PADDING-BOTTOM: 0cm; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; PADDING-=
RIGHT: 0cm; MARGIN-BOTTOM: 5pt; MARGIN-LEFT: 3.75pt; BORDER-TOP: medium no=
ne; BORDER-RIGHT: medium none; PADDING-TOP: 0cm">
<P style=3D"MARGIN-BOTTOM: 12pt" class=3DMsoNormal><FONT size=3D3 face=3D"=
Times New Roman"><SPAN style=3D"FONT-SIZE: 12pt"><BR>From: Rik Strobbe &lt=
;Rik.Strobbe@fys.kuleuven.be&gt;<BR>Subject: RE: LF: WSPR without an SSB=
 TRX ?<BR>To: "rsgb_lf_group@blacksheep.org" &lt;rsgb_lf_group@blacksheep.=
org&gt;<BR>Date: Wednesday, 7 April, 2010, 14:23</SPAN></FONT></DIV>
<DIV>
<P class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt">hello Chris, Jim, group,<BR><BR>an alternative to a=
 transverted would be a divider, let's say from 5MHz (from a HF tranceiver=
) to 500kHz.<BR>That would limit the hardware to some resistors an a singl=
e CMOS or TTL IC.<BR>I have written a small apllication that generates the=
 appropriate WSPR audio signal based on the input frequency, output freque=
ncy and divider ratio.<BR>It worked fine for some local tests, but due to=
 lack of I did no real "DX tests" so.<BR>But if anyone wants to try this=
 route I will be happy to send the software.<BR><BR>73, Rik&nbsp; ON7YD -=
 OR7T<BR><BR>________________________________________<BR>Van: <A href=3D"h=
ttp://uk.mc281.mail.yahoo.com/mc/compose?to=3Downer-rsgb_lf_group@blackshe=
ep.org" rel=3Dnofollow target=3D_blank>owner-rsgb_lf_group@blacksheep.org<=
/A> [<A href=3D"http://uk.mc281.mail.yahoo.com/mc/compose?to=3Downer-rsgb_=
lf_group@blacksheep.org"   rel=3Dnofollow target=3D_blank>owner-rsgb_lf_gr=
oup@blacksheep.org</A>] namens James Moritz [<A href=3D"http://uk.mc281.ma=
il.yahoo.com/mc/compose?to=3Djames.moritz@btopenworld.com" rel=3Dnofollow=
 target=3D_blank>james.moritz@btopenworld.com</A>]<BR>Verzonden: woensdag=
 7 april 2010 15:09<BR>Aan: <A href=3D"http://uk.mc281.mail.yahoo.com/mc/c=
ompose?to=3Drsgb_lf_group@blacksheep.org" rel=3Dnofollow target=3D_blank>r=
sgb_lf_group@blacksheep.org</A><BR>Onderwerp: Re: LF: WSPR without an SSB=
 TRX ?<BR><BR>Dear Chris, Andy, LF Group,<BR><BR>What Andy suggests is fin=
e for generating a WSPR signal, but receiving WSPR<BR>via the PIC might be=
 a bit more difficult...<BR><BR>But also at <A href=3D"http://www.g4jnt.co=
m/LFUpconv.pdf" rel=3Dnofollow target=3D_blank>http://www.g4jnt.com/LFUpco=
nv.pdf</A> is Andy's simple phasing<BR>up-converter, which could be used=
 to convert a PC audio output to 500kHz and<BR>be used in place of the VCO=
 in your TX.<BR><BR>Trawling through the Forum topics on the
 WSPRnet.org website (you might have<BR>to sign up to see all the material=
) will reveal many designs for homebrew HF<BR>WSPR beacons that could most=
ly be adapted to 500k.<BR><BR>Cheers, Jim Moritz<BR>73 de M0BMU</SPAN></FO=
NT></DIV></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE>
<P class=3DMsoNormal></DIV></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D3 face=3D"Ti=
mes New Roman"><SPAN style=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV><=
/DIV></DIV></DIV>
<P style=3D"MARGIN-LEFT: 36pt" class=3DMsoNormal><FONT size=3D3 face=3D"Ti=
mes New Roman"><SPAN style=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></DIV><=
/DIV>
<DIV><FONT size=3D2 face=3DArial>No virus found in this incoming message.<=
BR>Checked by AVG - www.avg.com<BR>Version: 9.0.800 / Virus Database: 271.=
1.1/2796 - Release Date: 04/07/10 07:32:00<BR></FONT></DIV></DIV></BLOCKQU=
OTE></td></tr></table><br>



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