I have an extra 20m phone SoftRock that was recently built to test a
20m phone crystal in the SoftRock circuit.  The receiver uses a 18.869
MHz crystal in 1/3 sub-harmonic sampling to get a center frequency of
about 14.148 MHz.  Band coverage with a soundcard that can sample at
96 kHz is from 14.100 MHz to 14.196 MHz. Seems to play well.

If anyone would like to have this unit I can put it in the mail today,
September 1.  Price is the usual for a built unit, $27 for US/Canada
and $28 for DX.  PayPal to raparks @ ctcisp.com (remove spaces
around "@") will get it on its way today.

Thanks and 73,
Tony KB9YIG

----- Original Message -----

From: kb9yig

To: softrock40@yahoogroups.com

Sent: Friday, September 01, 2006 6:14 AM

Subject: [softrock40] Extra built 20m phone SoftRock

I have an extra 20m phone SoftRock that was recently built to test a
20m phone crystal in the SoftRock circuit. The receiver uses a 18.869
MHz crystal in 1/3 sub-harmonic sampling to get a center frequency of
about 14.148 MHz. Band coverage with a soundcard that can sample at
96 kHz is from 14.100 MHz to 14.196 MHz. Seems to play well.

If anyone would like to have this unit I can put it in the mail today,
September 1. Price is the usual for a built unit, $27 for US/Canada
and $28 for DX. PayPal to raparks @ ctcisp.com (remove spaces
around "@") will get it on its way today.

Thanks and 73,
Tony KB9YIG

Some are: Edson, PU1JTE/N1VTN and De Marco, PY2WM.

http://ewp.homelinux.net/SDRZero/SDRZero_History.php
(in Portuguese...)

Boaventura, PY5CEK

-----Mensagem original-----
De: softrock40@yahoogroups.com [mailto:softrock40@yahoogroups.com] Em
nome de Sam Morgan
Enviada em: quinta-feira, 31 de agosto de 2006 21:33
Para: softrock40@yahoogroups.com
Assunto: Re: RES: [softrock40] Re: Using at FT-1000D IF of 8215 KHz

Boaventura - PY5CEK wrote:
> I don't think so. There are others than Tony!
>
for those of us that are a little confused....
who, where, what are you trying to say, links please. . . .

--
GB & 73's
KA5OAI
Sam Morgan



Yahoo! Groups Links

Hi,
     Ive just finished building a softrock v6.1 board with the components
(band pass filter) for around 460khz. (Using the 1.843mhz xtal
==460khz'ish) from quick testing it seems extremely sensitive.

One problem was trying to wind 118turns onto a T30-2 core - I got as
far as 86 Turns and switched to "that'll do mode" :) - Tony had advised
me this was nigh impossible and has kindly sent some T50-1 cores, which
will be wound when they arrive.

Around 450khz it will easily detect RF fed via a signal generator at
-127dbm (making a switchable attenuator is on my to-do list..)

At 220 Khz (/8 and who's IF is there anyhow?) -81dbm seems the lowest.

At 2nd Harmonic "up" 910khz (not spot on but withing the range) a
signal at least -50dbm needs to be present before it starts to show
in the 460khz region (e.g 2nd harmonic)

Hooking up the signal generator to the crystal at at -7dbm output level,
its possible to tune the V6.1 (in 455Khz "kit" mode) from

320Khz to 16Mhz when JP1 is at /8 = Thats External Osc, which
corresponds to a frequency range of 40khz to 2Mhz. (to be verified
with another signal generator, I suspect > 100khz is the usable range)

Im pretty sure I saw some standard time transmission around 60khz,
does anyone have a spectral plot of such transmissions ?

-----------

I was originally going to modify an Icom IC1500 and tap the 455Khz IF
from the underside of the main pcb, however my soldering iron which has
a narrow tip looked like a tree trunk next to the components. Since the
"do I really want to risk trashing mr dc to light for a softrock
expeirment" reality check kicked in, Ive decided to switch to plan B
taking the 455khz (or 450?) IF from an AOR 2002 dinosaur this is Pending..

73 Mike,
OH2FCZ.

Mike wrote:
> Hi,
>     Ive just finished building a softrock v6.1 board with the components
> (band pass filter) for around 460khz. (Using the 1.843mhz xtal
> ==460khz'ish) from quick testing it seems extremely sensitive.
>
> One problem was trying to wind 118turns onto a T30-2 core - I got as
> far as 86 Turns and switched to "that'll do mode" :) - Tony had advised
> me this was nigh impossible and has kindly sent some T50-1 cores, which
> will be wound when they arrive.
>
> Around 450khz it will easily detect RF fed via a signal generator at
> -127dbm (making a switchable attenuator is on my to-do list..)
>
> At 220 Khz (/8 and who's IF is there anyhow?) -81dbm seems the lowest.
>
> At 2nd Harmonic "up" 910khz (not spot on but withing the range) a
> signal at least -50dbm needs to be present before it starts to show
> in the 460khz region (e.g 2nd harmonic)
>
> Hooking up the signal generator to the crystal at at -7dbm output level,
> its possible to tune the V6.1 (in 455Khz "kit" mode) from
>
> 320Khz to 16Mhz when JP1 is at /8 = Thats External Osc, which
> corresponds to a frequency range of 40khz to 2Mhz. (to be verified
> with another signal generator, I suspect > 100khz is the usable range)
>
> Im pretty sure I saw some standard time transmission around 60khz,
> does anyone have a spectral plot of such transmissions ?
>
> -----------
>
> I was originally going to modify an Icom IC1500 and tap the 455Khz IF
> from the underside of the main pcb, however my soldering iron which has
> a narrow tip looked like a tree trunk next to the components. Since the
> "do I really want to risk trashing mr dc to light for a softrock
> expeirment" reality check kicked in, Ive decided to switch to plan B
> taking the 455khz (or 450?) IF from an AOR 2002 dinosaur this is Pending..
>
> 73 Mike,
> OH2FCZ.
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
For 455KHz or 10.7MHz and actually several in-between I.F.'s you can use
   very inexpensive commercial I.F. cans that can be bought for a
fraction of a dollar.

Also there is no need for 118 turns when using cores, at that low a
frequency type 2 cores is the wrong type to use, a more practical core
would be type FT37-43 Ferrite core were you would only need a small
fraction of those turns. For use at frequencies lower down a FT37-77
core could be quite useful.

For experimenting with Softrocks these items can be found at a
reasonable size Hamfest if one does not want to incur minimum order
sizes. Some outfits offer core samplers at a low price that might have
several different type of cores in one package.
--

Cecil
KD5NWA
www.qrpradio.com www.hpsdr.com

"Sacred Cows make the best Hamburger!" Don Seglio Batuna

I should have included a link to get you started.

Dan's Small parts, you name it he has it, if you are a parts junkie, "do
not look into the light".

< http://www.danssmallpartsandkits.net/ >


--

Cecil
KD5NWA
www.qrpradio.com www.hpsdr.com

"Sacred Cows make the best Hamburger!" Don Seglio Batuna

Hi Tony and others,
I too am thinking of following the 8125Khz IF route but with an FT757.
Some while ago, I seem to remember someone suggesting that the BPF may
not be needed as the receiver would do the filtering.
Would you care to comment.
73 de Pat G3MNV

Hi Tony,

I'm late in asking - but do you still have any of the 28.636MHz
crystals available?  I would like to try it out.

Best regards,
Scott


--- In softrock40@yahoogroups.com, Jerry <no2t@...> wrote:
>
> Hi Tony
>
>  Would like one of these crystals. Also putting together a
presentation for
> 3 clubs in my area. have a .PPT presentation but would really like
to have
> a hands on demo with voice. The range shown below would do a nice
job.
>
> 	 73 de Jerry NO2T
>
> At 01:26 PM 8/17/2006 +0000, you wrote:
> >Good Morning All,
> >
> >Several have ask about a SoftRock set for a phone band to use in
> >demonstrating SDR to non-CW folks.  I have some SMT 28.636 MHz
> >crystals so I built a 40m/80m SoftRock this morning using one of
the
> >crystals for a 40m center frequency of 7.158 MHz.  With 96 kHz
> >sampling the band coverage is 7.112 MHz to 7.206 MHz for some SSB
> >coverage. R17 at 22.1k was needed to get enough signal out of Q2
to
> >drive the divider ICs.  The 40m SSB SoftRock is playing nicely as
I
> >type this note.
> >
> >I have a good supply of these crystals if any would like to give
it a
> >try.
> >
> >73,
> >Tony KB9YIG
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>

--- In softrock40@yahoogroups.com, Cecil Bayona <KD5NWA@...> wrote:
>
>
> I should have included a link to get you started.
>
> Dan's Small parts, you name it he has it, if you are a parts junkie,
"do
> not look into the light".
>
> < http://www.danssmallpartsandkits.net/ >
>

Auuugggghhhhhh!! I looked. Damn your eyes!
This is going to cost me...

Seriously, thanks for posting that link

Neil
KX2Y

bofh47 wrote:
> --- In softrock40@yahoogroups.com, Cecil Bayona <KD5NWA@...> wrote:
>>
>> I should have included a link to get you started.
>>
>> Dan's Small parts, you name it he has it, if you are a parts junkie,
> "do
>> not look into the light".
>>
>> < http://www.danssmallpartsandkits.net/ >
>>
>
> Auuugggghhhhhh!! I looked. Damn your eyes!
> This is going to cost me...
>
> Seriously, thanks for posting that link
>
> Neil
> KX2Y
>
>
>
>SNIP
>
The funny part is in the last few years I have been in Missoula Montana
several times and I wasn't aware that his business was there, had I know
   my son would have had to knock me out to get me out of the building.

Next time I go there I will take a wad of cash with me.


--

Cecil
KD5NWA
www.qrpradio.com www.hpsdr.com

"Sacred Cows make the best Hamburger!" Don Seglio Batuna

Cecil Bayona wrote:
>>
> The funny part is in the last few years I have been in Missoula Montana
> several times and I wasn't aware that his business was there, had I know
>   my son would have had to knock me out to get me out of the building.
>
> Next time I go there I will take a wad of cash with me.
>
Hmmm, not sure you will be able to do that.... from their Web pages :

--------------------------------------------------------------------
DAN'S SMALL PARTS AND KITS IS A MAIL ORDER COMPANY ONLY

DAN'S IS NOT SET UP FOR WALK IN TRAFFIC..PLEASE DO NOT ASK..THANKS
--------------------------------------------------------------------


73  Alberto  I2PHD

Good afternoon all,

I just uploaded a few photos to the photo section of an enclosure I made
for the Delta 44 Interface Board Kit.  It uses a Ten-Tec TPB-11
enclosure, which I bought direct from Ten-Tec's webpage for under $7.
(I ordered other enclosures at the same time so I don't know what
shipping would have been on just the TPB-11 enclosure)

Four 1/4" holes were drilled to match the jacks on the Interface Board
and a slot cut into the back panel for the DB-15 connector.  I used a
pair of sheet metal nibblers to "nibble" the slot.  I match-drilled
holes for the DB-15 mounting ears and secured the DB-15 to the case with
   a pair of screws with a threaded male section and a female section.
The male section was threaded 4-40 and I retained them with a single
4-40 nut.

A grounding lead was connected from the DB-15 connector shell to one of
the grounded pads on the Interface Board.

I used four stick-on feet on the bottom of the box.

It looks nice and seems to work very well.

Comments welcome.

thanks and 73,
ben, kd5byb

Hi all,

I am a newbie to SoftRock. I got my Soft Rock version 6.1 today. I was
looking for stereo cable and antenna , couldn't fidn them. Can you
please let me know if we need to purchase seperately, if so can you
please recommend me what type of antenna would be good and where I can
buy them. Will I able to get the antenna from RadioShack.

Thanks,
Kalyan

Alberto I2PHD wrote:
> Cecil Bayona wrote:
>> The funny part is in the last few years I have been in Missoula Montana
>> several times and I wasn't aware that his business was there, had I know
>>   my son would have had to knock me out to get me out of the building.
>>
>> Next time I go there I will take a wad of cash with me.
>>
> Hmmm, not sure you will be able to do that.... from their Web pages :
>
> --------------------------------------------------------------------
> DAN'S SMALL PARTS AND KITS IS A MAIL ORDER COMPANY ONLY
>
> DAN'S IS NOT SET UP FOR WALK IN TRAFFIC..PLEASE DO NOT ASK..THANKS
> --------------------------------------------------------------------
>
>
> 73  Alberto  I2PHD
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
Translated that means it's a warehouse with parts all over the place not
organized at all, stuff all over and only he knows where the stuff is.

--

Cecil
KD5NWA
www.qrpradio.com www.hpsdr.com

"Sacred Cows make the best Hamburger!" Don Seglio Batuna

--- In softrock40@yahoogroups.com, "kalyanramuv" <kalyanramuv@...> wrote:
>
> Hi all,
>
> I am a newbie to SoftRock. I got my Soft Rock version 6.1 today. I was
> looking for stereo cable and antenna , couldn't fidn them. Can you
> please let me know if we need to purchase seperately, if so can you
> please recommend me what type of antenna would be good and where I can
> buy them. Will I able to get the antenna from RadioShack.
>
> Thanks,
> Kalyan
>
Kalyan, I bought my cables from razern on ebay, cheap and fast
shipping, just paste
6' 3.5mm 1/8" male mini plug stereo
or
12' 3.5mm 1/8" male mini plug stereo
in search and you will find it. As for antennas, just a 10, 20 foot or
what ever piece of wire plus a good ground does help (speaker wire or
?). If you want to get fansy, radio shack should have a shortwave
antenna kit or wind-up antenna.
Lew.

--- In softrock40@yahoogroups.com, "photosbydonovan"
<photosbydonovan@...> wrote:
>
> Is there an actual order page or do I just send money via paypal?
>
> Mike Donovan  VE7EPQ
>

this might help ...

http://www.kkn.net/archives/html/QRP-L/2006-04/msg00195.html

--- In softrock40@yahoogroups.com, "kalyanramuv" <kalyanramuv@...> wrote:
>
> Hi all,
>
> I am a newbie to SoftRock. I got my Soft Rock version 6.1 today. I was
> looking for stereo cable and antenna , couldn't fidn them. Can you
> please let me know if we need to purchase seperately, if so can you
> please recommend me what type of antenna would be good and where I can
> buy them. Will I able to get the antenna from RadioShack.
>
> Thanks,
> Kalyan
>
Kalyan, I bought my cables from razern on ebay, cheap and fast
shipping, just paste
6' 3.5mm 1/8" male mini plug stereo
or
12' 3.5mm 1/8" male mini plug stereo
in search and you will find it. As for antennas, just a 10, 20 foot or
what ever piece of wire plus a good ground does help (speaker wire or
?). If you want to get fansy, radio shack should have a shortwave
antenna kit or wind-up antenna.
Lew.

Hi Tony,
Would this xtal work in a normal 20m V7? Not sure what you mean by sub harmonic
sampling, but I am after this sort of coverage for my V7.

Cheers

John de VK4JWT
---- kb9yig <raparks@...> wrote:
> I have an extra 20m phone SoftRock that was recently built to test a
> 20m phone crystal in the SoftRock circuit.  The receiver uses a 18.869
> MHz crystal in 1/3 sub-harmonic sampling to get a center frequency of
> about 14.148 MHz.  Band coverage with a soundcard that can sample at
> 96 kHz is from 14.100 MHz to 14.196 MHz. Seems to play well.
>
> If anyone would like to have this unit I can put it in the mail today,
> September 1.  Price is the usual for a built unit, $27 for US/Canada
> and $28 for DX.  PayPal to raparks @ ctcisp.com (remove spaces
> around "@") will get it on its way today.
>
> Thanks and 73,
> Tony KB9YIG
>
>
>

I am shopping for a sound card. I see the M-audio series is available
in 4 channel, 6 channel, and 10 channel versions.

Delta 44 (4 channel):
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96845&is=REG&addedTroughType=search

Delta 66 (6 channel):
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96846&is=REG&addedTroughType=search

Delta 1010LT (8 channel):
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=2\
50599&is=REG&addedTroughType=search

Not much price difference between them. Would the 6 or 8 channel
version work as well for SDR applications? It might be nice to have
those extra channels available for other processing needs if there is
no downside.

Jerry W4UK

Jerry Flanders wrote:
>
> I am shopping for a sound card. I see the M-audio series is available
> in 4 channel, 6 channel, and 10 channel versions.
>
> Delta 44 (4 channel):
>
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96845&is=REG&addedTroughType=search
>
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
196845&is=REG&addedTroughType=search>
>
> Delta 66 (6 channel):
>
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96846&is=REG&addedTroughType=search
>
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
196846&is=REG&addedTroughType=search>
>
> Delta 1010LT (8 channel):
>
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=2\
50599&is=REG&addedTroughType=search
>
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
250599&is=REG&addedTroughType=search>
>
> Not much price difference between them. Would the 6 or 8 channel
> version work as well for SDR applications? It might be nice to have
> those extra channels available for other processing needs if there is
> no downside.
>
> Jerry W4UK
>


>
>























Hi Jerry
I'm using a 66 here, there is often very little difference inb price
between the delta 44 and delta 66,
Its worth having those extra 2 inputs/outputs , they are not on the main
interface but on the sound card and are digital IO.
Not sure about the 1010 .
HTH
Richard g8jvm

Hi,
    After rewinding L2 with 77 turns on a T50-1 core, softrock v6.1
with 1.8432 crystal (460.737 actual lo) and supply at 13.5v (drawing
around 20-30ma) I made some crude mds tests, using my "did the tone
just stop?" and "the waterfall monitor line just vanished" highly
scientific methods.

With M0KGK software, mds was around -125dbm at 455khz rx (thats
-125dbm on the generator rather than the software, which was
calibrated to -73dbm S9 and tracks rather nicely to +-0.5dbm the
generator!)

set as divide by 4,

For VLF - I saw another post on this topic?

at 100khz rx, (400khz on generator / external clock) mds was -61dbm
at 55khz rx, "audio" mds was around -47dbm e.g a signal of -47dbm was
needed to get any response (audio or change in spectral peak)

Using winrad
at 55khz rx, at -72dbm the waterfall line / spectral peak was at noise
floor. (considering -73dbm is S9 the bandpass filter is doing its job)
although the sim gives -22dbm at 55khz for the bpf = 94dbm, which is
curiously too close to the soundcards theoretical 96db so maybe thats
what was being measured rather than any directly converted signal by
the softrock board?

73,
Mike.

Look at the M-Audio 192, it has 24bit/192khz but only 2 channels.
Dave
--- In softrock40@yahoogroups.com, richard <richard.bown@...> wrote:
>
> Jerry Flanders wrote:
> >
> > I am shopping for a sound card. I see the M-audio series is available
> > in 4 channel, 6 channel, and 10 channel versions.
> >
> > Delta 44 (4 channel):
> >
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96845&is=REG&addedTroughType=search

> >
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
196845&is=REG&addedTroughType=search>
> >
> > Delta 66 (6 channel):
> >
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=1\
96846&is=REG&addedTroughType=search

> >
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
196846&is=REG&addedTroughType=search>
> >
> > Delta 1010LT (8 channel):
> >
http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=2\
50599&is=REG&addedTroughType=search

> >
<http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=\
250599&is=REG&addedTroughType=search>
> >
> > Not much price difference between them. Would the 6 or 8 channel
> > version work as well for SDR applications? It might be nice to have
> > those extra channels available for other processing needs if there is
> > no downside.
> >
> > Jerry W4UK
> >

DAVID wrote:
> Look at the M-Audio 192, it has 24bit/192khz but only 2 channels.
> Dave

Or, if you have a surplus of cash, the ultimate in quality are the EMU-1820M
(PCI bus) or the EMU-1616M (PCMCIA
interface). 192 kHz, 24 bit. From a rapid test they seem to have 8 dB more
dynamic range than the Delta 44, but at a
price...

73  Alberto  I2PHD

I finally finished a "production" version of a Softrock receiver. By
production, I mean everything in one box with proper connectors
instead of a bunch of pieces scattered around the bench. In the box
is a SR-6, a DDS-60 and a MS-DDS-60 (Controller).
I am using a SoundBlaster MP3+ so I can use it with any computer with
USB (especially laptop).
The Rocky display looks the same with the DDS-60 or the 28.224
crystal. The output of the DDS-60 directly replaces the crystal via a
short piece of small coax.
One of the nice features of the controller is that it displays 7.056
but actually puts out 28.224 for the SR-6.
You set the center frequency on the controller. Then transfer that
number (like 7.056) on the display to the appropriate field in Rocky
setup.
The DDS-60 goes to 60MHZ so this configuration will work to 15 MHZ.
This includes lots of ham bands, short wave bands, and most IF's. Now
I need to do some work on switching the band pass filter for higher
frequency coverage than the "stock" SR-6.

Now, if Rocky only supported AM and maybe FM (hint hint).
There have been several questions lately about the use of the DDS60.
I have found it very successful.

http://www.amqrp.org/kits/dds60/index.html
http://kd1jv.qrpradio.com/msdds60/msdds60.HTM

Tom KM5H

ian mcphedran wrote:
> I read your email (below) with interest and decided to do the same. On
> July 24 I ordered a DDS-60 from AMQRP and a MS-DDS-60 from KD1JV but
> although Paypal have paid the money needed to both parties, neither
> has acknowledged the order or payments. Can anyone suggest a way of
> getting a result with this?
> GM3GTQ
>






Ian when I ordered a DDS60 it came very quickly, but there was no
acknowledgment when I ordered.
Mine was sent snail mail, no hold ups in customs.

HTH

Richard g8jvm

Tom's mail triggers the same action, MS-DDS-60 came 1 week ago, but
DDS60 same not yet arrive nor an acknowledgment.  Now looking for
enclosure idea, pictures anyone?

Ling SM
ian mcphedran wrote:
>
>
> I read your email (below) with interest and decided to do the same. On
> July 24 I ordered a DDS-60 from AMQRP and a MS-DDS-60 from KD1JV but
> although Paypal have paid the money needed to both parties, neither has
> acknowledged the order or payments. Can anyone suggest a way of getting
> a result with this?
> GM3GTQ

Ian, on page 2 of my paypal receipt it gives an email address
amqrpkits@... for questions about delivery and tracking.  My
DDS-60 has not been on order that long but I think it deserves s a
question of them...

It could also just be stuck in the UK post office customs office which
we will get charged for.  As I remember it cost £13 plus import duty
for some Inrad filters purchased on eBay.

Clive Lorton G8POC

> ian mcphedran wrote:
> >
> >
> > I read your email (below) with interest and decided to do the
same. On
> > July 24 I ordered a DDS-60 from AMQRP and a MS-DDS-60 from KD1JV but
> > although Paypal have paid the money needed to both parties,
neither has
> > acknowledged the order or payments. Can anyone suggest a way of
getting
> > a result with this?
> > GM3GTQ
>

Hi,

Just to say that I have had a prompt response from Bryan Williams at
amqrp to my email stating delivery times and that my DDS=60 will be
delivered within that time.

Clive Lorton G8POC