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Re: v5.0 SoftRock design

 

Then it sounds good to me.

Bill

Tony Parks wrote:

Hi Bill,

No, actually v5.0 would lend itself nicely to being driven by a VFO with quadrature outputs such as AmQRP will soon be kitting, or maybe already is kitting. The comparitors on the main board will receive the two quadrature VFO inputs and provide the drive signals to the switches in the QSD circuit. A version of Osc/BPF board could help make for an easy connection of the external VFO. The VFO will operate at the fundamental frequency.

If a single band of operation is desired then the crystal oscillator will do nicely even with a simple phase shift network. With better sound cards this will give 96 kHz of band coverage. Additional Osc/BPF board would be needed for second, third, etc., band coverage. It should be noted that v5.0 will require only a fundamental frequency crystal and should help experimenters try various bands.

The double-ended header pins on the Osc/BPF board will provide for a third board to be added to the stack. What is in mind for the third board is a quadrature sampling exciter, QSE, and low power linear amplifier to produce RF output with modulation characteristics controled by the soundcard line-out.

Bill's and my intent with the SoftRock40 v4.0 design, and also with the v5.0, is to provide a low cost sample of what can be done with SDR.

73,
Tony KB9YIG

----- Original Message -----
From: "Bill Dumke" <billd@...>
To: <softrock40@...>
Sent: Wednesday, October 19, 2005 5:35 PM
Subject: Re: [softrock40] v5.0 SoftRock design



Tony,

I looked at the schematic of v5, but I don't understand why you
substituted the RC phase shifter for the digital one. This will prevent
the unit from being used at anything except one frequency. Driving it
with a DDS VFO will now be impossible. It seems like a step backward to me.

Bill, WB5TCO

Tony Parks wrote:


Good Morning All,

There have been a number of good comments concerning the v5.0 schematic.
Those comments along with my own concerns about certain things in the
posted
schematic have motivated me to make the following changes:

1) The present use of two of the switches in the FST3126 (U4) for a
receiver
mute function will change to use those two switches in parallel with
the the
two QSD switches to lower the signal path switch resistance. The
receiver
mute function will need to be done in the software. (Not a good
reason, but
I need to stay with the FST3126 part because I have over 1000 pieces left
from a minimum order buy for v4.0 kits. Anyone need any FST3126 parts?
:-) )
2) The BPF ground will connect to the antenna ground only but two vias
will
be provided to jumper the antenna ground to the circuit ground.
3) L21 and L22 as well as T21 will be wound on toroid cores so a kit
builder
may more easily adjust the BPF design and transformer turns ratio. (
I am
thinking about providing a set of cores in the kit to span the HF amateur
bands.)

The board layout is coming along pretty well and I will be making the
above
changes in the next few days. I will post a new schematic this
evening, but
will continue to be open to additional suggestions.

Thanks and 73,
Tony KB9YIG



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Re: SharpDSP Mini Console with Analog Meter

[email protected]
 

Hi, Leo

Phil gave a direct link and it dld OK.

Now I got an error message: (X)..... .NET Framework install location.

Do I need an additional program?

Thanks

Joe


Citando Leon Heller <leon.heller@...>:

<html><body>


<tt>

----- Original Message ----- <BR>
From: <zehelmer@...><BR>
To: <softrock40@...><BR>
Sent: Wednesday, October 19, 2005 11:03 PM<BR>
Subject: Re: [softrock40] SharpDSP Mini Console with Analog Meter<BR>
<BR>
<BR>
> Hi Phil,<BR>
><BR>
> It looks very nice and I would like to try it out... but the download is
<BR>
> not<BR>
> operational :-((<BR>
<BR>
It doesn't work with IE, try Mozilla Firefox.<BR>
<BR>
73, Leon <BR>
<BR>
__________________________________________________________
Pare de esbanjar dinheiro!
Compare o pre???o da sua liga??????o ??? Internet
Re: SharpDSP Mini Console with Analog Meter

Leon Heller
 

----- Original Message -----
From: <zehelmer@...>
To: <softrock40@...>
Sent: Wednesday, October 19, 2005 11:03 PM
Subject: Re: [softrock40] SharpDSP Mini Console with Analog Meter


Hi Phil,

It looks very nice and I would like to try it out... but the download is not
operational :-((
It doesn't work with IE, try Mozilla Firefox.

73, Leon

---
[This E-mail has been scanned for viruses but it is your responsibility to maintain up to date anti virus software on the device that you are
currently using to read this email. ]
10/19 v5.0 schematic now posted

kb9yig
 

Good Evening All,

I have modified the v5.0 schematic and posted it for comment.

It looks like each board of the v5.0 two board stack will be 1.1
inches by 1.6 inches. Layout is coming along pretty well and I should
be able to post the board artwork by this weekend.

73,
Tony KB9YIG
Re: Rocky 1.05 released

Bruce Beford
 

Rocky 1.05 works on my P4 motherboard with SiS 7012 sound card built
in- I like it a lot. Still doesn't work properly with the SoundBlaster
Audigy 2 NX USB external sound "card". This USB device works fine with
the PowerSDR s/w and Phil Covington's SharpDSP Console for the
SoftRock. In Rocky, there is no I/Q correction at all- each signal
appears twice- at equal strength above and below the center freq. On
each of the other programs, however, I can null properly using their
manual controls for this.

Keep up the great work Alex!

73, Bruce N1RX

--- In softrock40@..., "Alex, VE3NEA" <alshovk@d...> wrote:

Rocky 1.05 is now available. I significantly re-worked the WDM part
of the
program. The new version may solve the remaining problems, or it may
not
work for you at all - make a backup copy of your old version before
installing 1.05.

73 Alex VE3NEA
Re: Rocky 1.05 released

 

Alex, VE3NEA wrote:

Rocky 1.05 is now available. I significantly re-worked the WDM part of the program. The new version may solve the remaining problems, or it may not work for you at all - make a backup copy of your old version before installing 1.05.

73 Alex VE3NEA
Alex,

Thanks for the 1.05 release. It works on my son's P4 with the on-board RealTek AC-97 sound system.

73, Milt W8NUE



--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 10/19/2005
Re: Rocky 1.05 released

[email protected]
 

Alex,

"Rocky1.05" works great with the Santa Cruz sound card. Excellent job !
....and thanks for your time and effort.

73 Kees K5BCQ
Re: Rocky 1.05 released

Michael Harnage
 

Hi Alex,

I just want to say thank you for Rocky! It is very
nice to have a simple interface that works FB for the
Softrock-40. I just got my sr-40 yesterday (last batch
and probably last mailing) put it together over lunch.
It worked immediately off the bench (whew!). Rocky
works great with the SoundMax at work and the nVidia
sound chip at home. Great job!

73 de w1mt
Mike

--- "Alex, VE3NEA" <alshovk@...> wrote:

Rocky 1.05 is now available. I significantly
re-worked the WDM part of the
program. The new version may solve the remaining
problems, or it may not
work for you at all - make a backup copy of your old
version before
installing 1.05.

73 Alex VE3NEA



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Re: Rocky 1.05 released

[email protected]
 

Hi, Alex

I was trying 1.03, working OK!

I missed 1.04 ... :-((

Now 1.05 doesn't work: RADIO ON/OFF button not active...

BYW, I'm using WinMe

73

de Joe - CT1AXG

Citando "Alex, VE3NEA" <alshovk@...>:

Rocky 1.05 is now available. I significantly re-worked the WDM part of the
program. The new version may solve the remaining problems, or it may not
work for you at all - make a backup copy of your old version before
installing 1.05.

73 Alex VE3NEA





Yahoo! Groups Links



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Re: v5.0 SoftRock design

Tony Parks
 

Hi Bill,

No, actually v5.0 would lend itself nicely to being driven by a VFO with quadrature outputs such as AmQRP will soon be kitting, or maybe already is kitting. The comparitors on the main board will receive the two quadrature VFO inputs and provide the drive signals to the switches in the QSD circuit. A version of Osc/BPF board could help make for an easy connection of the external VFO. The VFO will operate at the fundamental frequency.

If a single band of operation is desired then the crystal oscillator will do nicely even with a simple phase shift network. With better sound cards this will give 96 kHz of band coverage. Additional Osc/BPF board would be needed for second, third, etc., band coverage. It should be noted that v5.0 will require only a fundamental frequency crystal and should help experimenters try various bands.

The double-ended header pins on the Osc/BPF board will provide for a third board to be added to the stack. What is in mind for the third board is a quadrature sampling exciter, QSE, and low power linear amplifier to produce RF output with modulation characteristics controled by the soundcard line-out.

Bill's and my intent with the SoftRock40 v4.0 design, and also with the v5.0, is to provide a low cost sample of what can be done with SDR.

73,
Tony KB9YIG

----- Original Message -----
From: "Bill Dumke" <billd@...>
To: <softrock40@...>
Sent: Wednesday, October 19, 2005 5:35 PM
Subject: Re: [softrock40] v5.0 SoftRock design


Tony,

I looked at the schematic of v5, but I don't understand why you
substituted the RC phase shifter for the digital one. This will prevent
the unit from being used at anything except one frequency. Driving it
with a DDS VFO will now be impossible. It seems like a step backward to me.

Bill, WB5TCO

Tony Parks wrote:

Good Morning All,

There have been a number of good comments concerning the v5.0 schematic.
Those comments along with my own concerns about certain things in the
posted
schematic have motivated me to make the following changes:

1) The present use of two of the switches in the FST3126 (U4) for a
receiver
mute function will change to use those two switches in parallel with
the the
two QSD switches to lower the signal path switch resistance. The
receiver
mute function will need to be done in the software. (Not a good
reason, but
I need to stay with the FST3126 part because I have over 1000 pieces left
from a minimum order buy for v4.0 kits. Anyone need any FST3126 parts?
:-) )
2) The BPF ground will connect to the antenna ground only but two vias
will
be provided to jumper the antenna ground to the circuit ground.
3) L21 and L22 as well as T21 will be wound on toroid cores so a kit
builder
may more easily adjust the BPF design and transformer turns ratio. (
I am
thinking about providing a set of cores in the kit to span the HF amateur
bands.)

The board layout is coming along pretty well and I will be making the
above
changes in the next few days. I will post a new schematic this
evening, but
will continue to be open to additional suggestions.

Thanks and 73,
Tony KB9YIG



SPONSORED LINKS
Icom ham radio
<>
Shortwave receivers
<>
Ham radio
<>



------------------------------------------------------------------------
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* Visit your group "softrock40
<>" on the web.

* To unsubscribe from this group, send an email to:
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Re: SharpDSP Mini Console with Analog Meter

[email protected]
 

Hi,

Yes and I'm new at this level :-)

Now it dld THANKS but an error (X) appears concerning the .NET Framework
install location!

Do I need an additional Program?

73

de Joe - CT1AXG

Citando Phil Covington <p.covington@...>:

<html><body>


<tt>
You are probably using IE?&nbsp; <BR>
<BR>
Here is a direct link:<BR>
<BR>
<a

href=">htt
p://www.philcovington.com/SDR/files/SharpDSPMiniConsole_Binary.zip</a><BR>
<BR>
<BR>

__________________________________________________________
Porque insiste em pagar o dobro?
Compare o pre???o da sua liga??????o ??? Internet
Rocky 1.05 released

 

Rocky 1.05 is now available. I significantly re-worked the WDM part of the program. The new version may solve the remaining problems, or it may not work for you at all - make a backup copy of your old version before installing 1.05.

73 Alex VE3NEA
Re: v5.0 SoftRock design

 

Tony,

I looked at the schematic of v5, but I don't understand why you substituted the RC phase shifter for the digital one. This will prevent the unit from being used at anything except one frequency. Driving it with a DDS VFO will now be impossible. It seems like a step backward to me.

Bill, WB5TCO

Tony Parks wrote:

Good Morning All,

There have been a number of good comments concerning the v5.0 schematic.
Those comments along with my own concerns about certain things in the posted
schematic have motivated me to make the following changes:

1) The present use of two of the switches in the FST3126 (U4) for a receiver
mute function will change to use those two switches in parallel with the the
two QSD switches to lower the signal path switch resistance. The receiver
mute function will need to be done in the software. (Not a good reason, but
I need to stay with the FST3126 part because I have over 1000 pieces left
from a minimum order buy for v4.0 kits. Anyone need any FST3126 parts?
:-) )
2) The BPF ground will connect to the antenna ground only but two vias will
be provided to jumper the antenna ground to the circuit ground.
3) L21 and L22 as well as T21 will be wound on toroid cores so a kit builder
may more easily adjust the BPF design and transformer turns ratio. ( I am
thinking about providing a set of cores in the kit to span the HF amateur
bands.)

The board layout is coming along pretty well and I will be making the above
changes in the next few days. I will post a new schematic this evening, but
will continue to be open to additional suggestions.

Thanks and 73,
Tony KB9YIG



SPONSORED LINKS
Icom ham radio <> Shortwave receivers <> Ham radio <>


------------------------------------------------------------------------
YAHOO! GROUPS LINKS

* Visit your group "softrock40
<>" on the web.
* To unsubscribe from this group, send an email to:
softrock40-unsubscribe@...
<mailto:softrock40-unsubscribe@...?subject=Unsubscribe>
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Re: SharpDSP Mini Console with Analog Meter

 

--- In softrock40@..., zehelmer@p... wrote:

Hi Phil,

It looks very nice and I would like to try it out... but the
download is not
operational :-((
I had the same problem:
Go to www...../DSP/Files or something like that (you can see the
name when the mouse pass other the button) and download the file.

Jean-Claude PJ2BVU

73

de Joe


Citando Phil Covington <p.covington@g...>:

<html><body>


<tt>
Hi all,<BR>
<BR>
I just posted a new version of the SharpDSP Mini Console for
the<BR>
SoftRock 40 to my website at:<BR>
<BR>
<a

__________________________________________________________
Para grandes mails, grandes contas
Portugalmail: 2 000 MB de espa?o
Re: SharpDSP Mini Console with Analog Meter

 

You are probably using IE?

Here is a direct link:




--- In softrock40@..., zehelmer@p... wrote:

Hi Phil,

It looks very nice and I would like to try it out... but the
download is not
operational :-((

73

de Joe


Citando Phil Covington <p.covington@g...>:

<html><body>


<tt>
Hi all,<BR>
<BR>
I just posted a new version of the SharpDSP Mini Console for the<BR>
SoftRock 40 to my website at:<BR>
<BR>
<a

__________________________________________________________
Para grandes mails, grandes contas
Portugalmail: 2 000 MB de espa?o
Re: SharpDSP Mini Console with Analog Meter

[email protected]
 

Hi Phil,

It looks very nice and I would like to try it out... but the download is not
operational :-((

73

de Joe


Citando Phil Covington <p.covington@...>:

<html><body>


<tt>
Hi all,<BR>
<BR>
I just posted a new version of the SharpDSP Mini Console for the<BR>
SoftRock 40 to my website at:<BR>
<BR>
<a

__________________________________________________________
Para grandes mails, grandes contas
Portugalmail: 2 000 MB de espa???o
Re: Noise floor at -85dBm

hb9ajp
 

Hi Tony and Art
Ha, ha, I have resolved the problem: was not a noise floor but a
signal problem. Hardly dare to tell you: soldered the inner conductor
of the koax (signal in) to ground... Of course I only noticed it after
having unsoldered the transformer, hi. Sorry for the disturbance.
It's a great little radio, I will lend it to my friends in order to
show them the principal of the sdr-1000, which I also got recently.
73, Chris


--- In softrock40@..., "Tony Parks" <raparks@c...> wrote:

Hi Chris,

I have now built more than 90 of the v4.0 SoftRock40 receiver. All
have
worked properly, but some required additional effort. My number one
problem
was with my SMT soldering. Look very carefully for opens and solder
bridges. Also check to make sure the center-tap voltage to T1 and
pins 3
and 5 of U5 is at about 2.2 volts.

T1 has been a problem for a number of SoftRock builders. A quick
test, but
not a complete test of proper winding and mounting of T1, is to
measure the
resistance to circuit ground for the six vias where T1 in mounted. The
primary vias, (two closest to board edge), should read zero ohms.
The other
four should read around 7.0 k ohms.

Hope you are able to get it working fairly quickly.

73,
Tony KB9YIG


A couple additional suggestions for what to check.
1) Check carefully the soldering around the SMT components.
----- Original Message -----
From: "hb9ajp" <hb9ajp@b...>
To: <softrock40@...>
Sent: Sunday, October 16, 2005 3:37 PM
Subject: [softrock40] Noise floor at -85dBm


Hi all
I am new to the group. I have finished my SoftRock40 today and
everything seemed to work fine. But then, after calibrating with an
external signal, the noise foor went up to -85dBm and stays there. So
only few strong singnals can be received at the antenna.
Any suggestions?
73 Chris HB9AJP







Yahoo! Groups Links
Re: v5.0 SoftRock design

KD5NWA
 

The present SR-40 design with Logic could be re-designed with the same parts to have all quadrature signals clock together and only need a 2X crystal or DDS frequency source. The advantage would be higher frequency reach, and no changing of components over a wide frequency range, good for using a DDS and a multi-band pre-selector.

Somewhere in the garage I have a box with a old Ameco pre-selector, using Nuvistors for the amplifier. The frequency range is from the bottom of the AM band to 30 MHz, I need to keep an eye out for it and set it aside.


At 10:37 AM 10/19/2005, you wrote:
Design list.........

What I would like to see is a SR-40 with Rocky software (could be Power
SDR at the expense of CPU cycles) and the following changes. Add an
AD9850 DDS with parallel port loading via the Rocky code to set the DDS
when the frequency is selected. The method of I/Q generation TBD. It
could be the dual LT1719s withn a phase shift network (seems "stability"
difficult to me) or the original FFs (seems easier but upper frequency
limited due to 4x). A tuneable BPF frontend, either several manually
selectable BPFs (the present BPF is good for 7-11Mhz, make one for
3-5Mhz, and 13-19Mhz) or make it manually tuneable like the preselectors
in many of the older radios.

73 Kees K5BCQ




Yahoo! Groups Links



Cecil Bayona
KD5NWA
www.qrpradio.com

I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ...
Fw: Re: Fw: Re: v5.0 SoftRock design

jkraeme
 

Kees,

There is another AMQRP group working on a AD9854 DDS project similar
to Softrock-40. They are about to come out with their next generation
VFO which includes I and Q outputs (with software phase adjustments),
a digital readout driven by an encoder.

Why reinvent the wheel when you can buy another really cool kit and
double your fun? Additionally with I/Q available, a transceiver is
much closer to realization. :-0

Significant work would have to be done on the front-end from L21 thru
T21 on the OSC/BPF board but that would just be another area of
research. It might be nice to have a SoftRock-XX, where XX is the
band of your choice.

Jim AD6UY

--- In softrock40@..., windy10605@j... wrote:

I see three basic areas.........

1) The standalone SR-40 based unit without a "large external computer".
Similar to the "futures...." project which George mentions (and what
"made" me subscribe to the Homebrewer CD ;o). I think there are
several
groups working on various implementations of something like this,
including our local AQRP group. Those 2x16 backlit displays look great.

2) Using less CPU intensive SW for DSP/Tuning like "Rocky" on an average
laptop. Since you have the screen/keyboard, use it to load DDS
frequencies and loading them in 48Khz increments is fine. May even
incorporate keyboard data entry for CW and (slap me upside the head) CW
decoding for those of us more "CW challenged". CW Tx would be
straightforward and not use the computer other than to set the DDS
frequency (offset or not) and keying functions.

3) Using the larger, more powerful desktop computers with Rocky or
PowerSDR. basically what we are doing today, but expand the SR-40 to
include a loadable DDS (48Khz band segment) and a manually tuned BPF
into
the SR-40.

73 Kees K5BCQ

--------- Forwarded message ----------
From: George Heron N2APB <n2apb-2@c...>
To: softrock40@..., windy10605@j...
Date: Wed, 19 Oct 2005 12:11:44 -0400
Subject: Re: Fw: Re: [softrock40] v5.0 SoftRock design
Message-ID: <20051019161806.452FC1F2773@m...>

That's certainly the idea. See



which is also elaborated on in a current Homebrewer Mag article.

The prototype is now much further along than either of these

descriptions indicate.



73, George N2APB





On Wed Oct 19 10:52 , windy10605@j... sent:



Cont.........
The next step would be standalone DSP+ with a 2x16 backlit
display and

tuner knob with shaft encoder. The one following that has a
simple (and separate

...don't require a computer to process outgoing CW) CW Tx with
appropriate

keyer, etc
73 Kees K5BCQ
----- Forwarded Message -----
From: windy10605@j...
To: softrock40@...
Date: Wed, 19 Oct 2005 10:37:23 -0500
Subject: Re: [softrock40] v5.0 SoftRock design
Message-ID: <20051019.103724.2088.11.windy10605@j...>
Design list.........
What I would like to see is a
SR-40 with Rocky software (could be Power
SDR at the expense of CPU cycles)
and the following changes. Add an
AD9850 DDS with parallel port loading via
the Rocky code to set the DDS
when the frequency is selected. The method of
I/Q generation TBD. It
could be the dual LT1719s withn a phase shift network
(seems "stability"
difficult to me) or the original FFs (seems easier but
upper frequency
limited due to 4x). A tuneable BPF frontend, either several
manually
selectable BPFs (the present BPF is good for 7-11Mhz, make one
for
3-5Mhz, and 13-19Mhz) or make it manually tuneable like the
preselectors
in many of the older radios.
73 Kees K5BCQ
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Visit your group "softrock40" on the web.
To unsubscribe from this group, send an email to:
softrock40-unsubscribe@...
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Service.
Re: SharpDSP Mini Console with Analog Meter

EricJ
 

The analog meter is a beautiful addition to the
Console, Phil. With SDR's we can, once again, enjoy
the beauty and utility of analog meters since they are
essentially free. I hope more designers treat us to
these visual delights instead of the ugliness of
computer rendered LED bargraphs which were used in
hardware radios for economic reasons.

Eric
KE6US
www.ke6us.com

--- Phil Covington <p.covington@...> wrote:

Hi all,

I just posted a new version of the SharpDSP Mini
Console for the
SoftRock 40 to my website at:



Please see my Blog entry for 10-19-2005 for details
about this release:



The default meter face supplied is not calibrated,
it is included for
demonstration.

73 de Phil N8VB





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