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Re: My receiver

Chuck Carpenter
 

Phil,

Agreed. I'm well over 70 now and technology is rapidly passing me by. But I make every effort to stay with it as best I can. To complain and find fault with what others are doing for us and who do understand and do nothing about helping yourself is rediculous.


At 12:03 PM 10/25/2005 +0000, you wrote:
--- In softrock40@..., Richard Gagnon <richg_1998@y...> wrote:

Ok, but a simple .exe file would have been much easier.

Richard
Ha! Comments like this never cease to amaze me. Bill Tracey has
generously donated his time and effort by providing (and maintaining)
a way to use PowerSDR with the SoftRock 40. If it were not for Bill's
efforts there would not have been any software to use with the SR40
initially. All of the other programs, whether open or closed source,
became available or were learned to work with the SR40 afterwards.

If you want the software distributed in an exe file then why don't YOU
take up the effort to do it instead of just complaining? It would be
nice if we could get more contibutors to balance out the users. Tony
and Bill made have put considerable time and effort into the SR40
project without expecting anything in return. So before you think to
criticize the way the software is distributed maybe you should think
about this first.

Phil N8VB


Chuck Carpenter, W5USJ, Point, TX -|- Rains Co. -|- EM22cv -|- 72 es 73
50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since 1984.
www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.com
Re: New file uploaded to softrock40

 

This 2x LO is exact the same as used in the great "QRP2001 Project"
by Jan Verduyn (G0BBL), Steve Farthing (G0XAR), John Law (G8BTR) and
Alan Rowe (M0PUB).



Look at

Regards
Chris


--- In softrock40@..., brainerd@b... wrote:

I just downloaded the a schematic of my Tayloe Detector. It
requires LO at 2 times the RF rather than 4
times. I just tested it yesterday using the Micro 908 VFO output as
the LO. Using the SDR program, I was
able to get close to 60dB opposite sideband supression.
The first 74XX86 converts the sinewave to a squarewave. The next
two, produce a 0 and 180 degree output.
The fourth gate provides an easy way in hardware to select the sideband.

Dave - WB6DHW

Hello,
This email message is a notification to let you know that
a file has been uploaded to the Files area of the softrock40
group.

File : /2X-LO Tayloe Detector.pdf
Uploaded by : brainerdd <brainerd@...>
Description : Tayloe Detector with 2X LO circuit

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

brainerdd <brainerd@...>
Re: My receiver

 

--- In softrock40@..., Richard Gagnon <richg_1998@y...> wrote:

Ok, but a simple .exe file would have been much easier.

Richard
Ha! Comments like this never cease to amaze me. Bill Tracey has
generously donated his time and effort by providing (and maintaining)
a way to use PowerSDR with the SoftRock 40. If it were not for Bill's
efforts there would not have been any software to use with the SR40
initially. All of the other programs, whether open or closed source,
became available or were learned to work with the SR40 afterwards.

If you want the software distributed in an exe file then why don't YOU
take up the effort to do it instead of just complaining? It would be
nice if we could get more contibutors to balance out the users. Tony
and Bill made have put considerable time and effort into the SR40
project without expecting anything in return. So before you think to
criticize the way the software is distributed maybe you should think
about this first.

Phil N8VB
Re: FW: 9958

 

I definitely feel this is worth looking in to :-) I think you have a terrifc
idea here. I don't know what functions are available in a FPGA, but think
all the way to the antenna. Perhaps samplers, perhaps numerically controlled
oscillators for the DDS (accumulator and delta_phase register), perhaps A/D
functions are available or can be implimented. And then on to the MAC , DSP
etc. It's well worth looking in to :-) Thanks for your thoughts,

Regards,
John

----- Original Message -----
From: "Philip Covington" <p.covington@...>
To: "John H. Fisher" <k5jhf@...>
Cc: "David WardenDurkee" <dwarden2@...>; "AQRP"
<aqrp@...>; "Bob Hillard" <rhillard@...>; "David
Warden-Durkee" <dwarden@...>; "Milton Cram" <mecram@...>;
<softrock40@...>
Sent: Monday, October 24, 2005 12:23 PM
Subject: Re: FW: [softrock40] 9958


Hi John,

I have been toying with the idea of implementing my own custom DSP
engine within a FPGA. That way only logic functions specific to the
SDR application need be present.

Things like cost and power requirements would have to be looked at but
if there is some interest in this I might place it higher up the stack
of things to do.

73 de Phil N8VB
Re: FW: 9958

 

Hi John,

I have been toying with the idea of implementing my own custom DSP
engine within a FPGA. That way only logic functions specific to the
SDR application need be present.

Things like cost and power requirements would have to be looked at but
if there is some interest in this I might place it higher up the stack
of things to do.

73 de Phil N8VB


On 10/23/05, John H. Fisher <k5jhf@...> wrote:
Dave, the dsPIC33F with 16KB RAM isn't available yet. I will be testing
with the dsPIC30F 512 to 2K RAM until the 33's are available around
December or January :-)

However I am in the process of analyzing whether the 16 bit DSP is
sufficient for the job. Milt Cram is helping me to determine the
necessary dynamic range. We may need to go to an Analog Devices 24 bit
DSP to get the necessary filter performance. Thanks for asking :-)

Here's part of the analysis:

One byte equals 256. The log10 of 256 is 2.4 or 24 decibels.

So each byte represents 24 db.

A 16 bit processor equals 24+24 = 48 db dynamic range.

A 24 bit DSP equals 24+24+24 = 72 db dynamic range.

Of course a floating point DSP has almost infinite dynamic range.

It's beginning to look like the 16 bit DSP controller chip might not
have the dynamic range necessary to give performance comparable to the
PC SDR software. So we might have to move up to a dedicated DSP chip and
augment it with a microcontroller :-)

Of course the usual disclaimer applies... I may not know what I am
talking about :-)

Does anyone else have any thoughts on this analysis ? Thanks very much,

Regards,
John

David WardenDurkee wrote:

Hi John,
What PIC are you going to be using?
I'd like to get an order off to Digikey and or Mouser.

I'm thinking about getting a bunch of building blocks to try out new
ideas and experiment.

Dave


------------------------------------------------------------------------
**
--
Regards,
John

=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================


--
Philip A Covington
Re: FW: 9958

Robert McGwier
 

John:

You are doing power and the "quantization amplitudes" measure by the bits are voltages.

24 bits is theoretically 144 dB dynamic range and 16 bits is 96. This is because you 20log (voltage)
not 10log (power).

A floating DSP does not have infinite dynamic range. If it is 32 bit floats, then 24 bits are the fraction
and the rest exponent and sign.

Bob
N4HY

John H. Fisher wrote:

Dave, the dsPIC33F with 16KB RAM isn't available yet. I will be testing with the dsPIC30F 512 to 2K RAM until the 33's are available around December or January :-)

However I am in the process of analyzing whether the 16 bit DSP is sufficient for the job. Milt Cram is helping me to determine the necessary dynamic range. We may need to go to an Analog Devices 24 bit DSP to get the necessary filter performance. Thanks for asking :-)

Here's part of the analysis:

One byte equals 256. The log10 of 256 is 2.4 or 24 decibels.

So each byte represents 24 db.

A 16 bit processor equals 24+24 = 48 db dynamic range.

A 24 bit DSP equals 24+24+24 = 72 db dynamic range.

Of course a floating point DSP has almost infinite dynamic range.

It's beginning to look like the 16 bit DSP controller chip might not have the dynamic range necessary to give performance comparable to the PC SDR software. So we might have to move up to a dedicated DSP chip and augment it with a microcontroller :-)

Of course the usual disclaimer applies... I may not know what I am talking about :-)

Does anyone else have any thoughts on this analysis ? Thanks very much,

Regards,
John

--
Laziness is the number one inspiration for ingenuity. Guilty as charged!
Re: V5.0 alpha testers needed

Stan Rife
 

¿ªÔÆÌåÓý

basicEparts has 16 of them, also. Don't know if that is worth the effort
?
???
?
?

Stan Rife
W5EWA
Houston, TX
K2 S/N 4216
?

-----Original Message-----
From: softrock40@... [mailto:softrock40@...] On Behalf Of kb9yig
Sent: Monday, October 24, 2005 7:58 AM
To: softrock40@...
Subject: [softrock40] V5.0 alpha testers needed

The v5.0 ptototype boards are now on order for delivery later this
week.? Most of the parts are also on order with most in stock.? One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.

I am needing ten more alpha testers for the v5.0 design.? I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components.? I would appreciate having alpha testers who are
already experimenting with v4.0.? Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.

If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.

Thanks and 73,
Tony KB9YIG
Re: V5.0 alpha testers needed

KY1K
 

One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.
Tony,

Rochester Electronics has 74 of them in stock. I have not dealt with them myself and don't know if they have minimum orders or high service charges.



Art
Re: V5.0 alpha testers needed

Tony Parks
 

That was fast. All ten alpha testers slots have been filled.

I will let the testers know when the kit have been shipped.

Thanks to all for your interest in the project.

73,
Tony KB9YIG

----- Original Message -----
From: "kb9yig" <raparks@...>
To: <softrock40@...>
Sent: Monday, October 24, 2005 7:58 AM
Subject: [softrock40] V5.0 alpha testers needed


The v5.0 ptototype boards are now on order for delivery later this
week. Most of the parts are also on order with most in stock. One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.

I am needing ten more alpha testers for the v5.0 design. I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components. I would appreciate having alpha testers who are
already experimenting with v4.0. Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.

If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.

Thanks and 73,
Tony KB9YIG







Yahoo! Groups Links
Re: V5.0 alpha testers needed

Tony Parks
 

¿ªÔÆÌåÓý

Great Kees.? I am glad to hear you would like to be one of the testers.? I hope to send out the kits at the end of this week or early next week.? No payment until I actually send the kit.
?
Thanks and 73,
Tony KB9YIG
?

----- Original Message -----
Sent: Monday, October 24, 2005 10:00 AM
Subject: Fw: Re: [softrock40] V5.0 alpha testers needed

I volunteer for alpha testing also, Tony.
?
73 Kees K5BCQ
?
Fw: Re: V5.0 alpha testers needed

[email protected]
 

¿ªÔÆÌåÓý

I volunteer for alpha testing also, Tony.
?
73 Kees K5BCQ
?
Re: V5.0 alpha testers needed

George Ransford
 

Hi Tony:? I would be more than happy to try the V.5.? My V.4 works like a champ!!

kb9yig wrote:

The v5.0 ptototype boards are now on order for delivery later this
week.? Most of the parts are also on order with most in stock.? One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.

I am needing ten more alpha testers for the v5.0 design.? I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components.? I would appreciate having alpha testers who are
already experimenting with v4.0.? Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.

If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.

Thanks and 73,
Tony KB9YIG





SPONSORED LINKS

Re: V5.0 alpha testers needed

Tony Parks
 

Sure, that would be great John. I will put you on the list. Please send me your address and payment after I ship the kits would be fine.

Thanks and 73,
Tony KB9YIG

----- Original Message -----
From: "John Melton" <john.melton@...>
To: <softrock40@...>
Sent: Monday, October 24, 2005 8:59 AM
Subject: Re: [softrock40] V5.0 alpha testers needed


Hi Tony,

if you don't mind an alpha tester in the UK I would be delighted to help
out.

regards,

John g0orx/n6lyt

----

John Melton
SunIT CTO
x21708 (+44 1252 421708)


kb9yig wrote:
The v5.0 ptototype boards are now on order for delivery later this
week. Most of the parts are also on order with most in stock. One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.

I am needing ten more alpha testers for the v5.0 design. I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components. I would appreciate having alpha testers who are
already experimenting with v4.0. Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.

If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.

Thanks and 73,
Tony KB9YIG





SPONSORED LINKS
Shortwave receivers
<>
Ham radio
<>



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

* To unsubscribe from this group, send an email to:
softrock40-unsubscribe@...
<mailto:softrock40-unsubscribe@...?subject=Unsubscribe>

* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
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Yahoo! Groups Links
Re: V5.0 alpha testers needed

John Melton
 

Hi Tony,

if you don't mind an alpha tester in the UK I would be delighted to help out.

regards,

John g0orx/n6lyt

----

John Melton
SunIT CTO
x21708 (+44 1252 421708)


kb9yig wrote:

The v5.0 ptototype boards are now on order for delivery later this
week. Most of the parts are also on order with most in stock. One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.
I am needing ten more alpha testers for the v5.0 design. I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components. I would appreciate having alpha testers who are
already experimenting with v4.0. Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.
If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.
Thanks and 73,
Tony KB9YIG
SPONSORED LINKS
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>
* Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service <>.
------------------------------------------------------------------------
My Softrock-40

qrper723
 

Hi,

I've built yesterday and using PIC-EL/DDS Daughter card.
It can cover full 40m band and really nice job.
The ploblem is that the image-signal of both side can not
be rejected.

I will try to check the I-Q balance with scope.



72!

hidehiko ja9mat
V5.0 alpha testers needed

kb9yig
 

The v5.0 ptototype boards are now on order for delivery later this
week. Most of the parts are also on order with most in stock. One
problem is the low-noise amplifier chip, the OPA2228UA, is on back
order so I will probably need to make a sub for alpha board sets.

I am needing ten more alpha testers for the v5.0 design. I will need
to ask for $25 per alpha test kit to help cover the cost of the boards
and components. I would appreciate having alpha testers who are
already experimenting with v4.0. Please send me an e-mail at
raparks@... if you would like to be a v5.0 alpha tester.

If alpha testing show the design is reasonable for a kit run then I am
planning a run of 200 kits with an extra 300 of the Osc/BPF kits.

Thanks and 73,
Tony KB9YIG
Re: My receiver

Tony Parks
 

Hi Richard,

Glad that the SoftRock is at least working with one program for you. I would recomend at least trying to run with Rocky. Very nice easy to use program.

73,
Tony KB9YIG

----- Original Message -----
From: "Richard Gagnon" <richg_1998@...>
To: <softrock40@...>
Sent: Monday, October 24, 2005 7:38 AM
Subject: Re: [softrock40] My receiver


Hi Tony

Thank you but I have gone with Alberto's. It works. Rocky might not work with
98SE either according to the web site. I refuse to go with xp so maybe I might
start using my Linux (Linspire 5.0) computer and look around for software.
Someone did say they had a Linux version.

I am also considering selling off all the dds stuff and stick with my Icom R75
and Palstar R30C for receivers. Unfortunately I just ordered a bunch of parts
for LF use with the softrock.

Richard



--- Tony Parks <raparks@...> wrote:

Hi Richard,

I understand that PowerSDR will not run on a computer with W98SE. A SDR
programs that may run on W98SE is the Rocky program by by Alex VE3NEA. Go
to to down load Rocky.

Hope it will play for you.

73,
Tony KB9YIG

----- Original Message -----
From: "Richard Gagnon" <richg_1998@...>
To: <softrock40@...>
Sent: Sunday, October 23, 2005 8:33 PM
Subject: [softrock40] My receiver


Hello All

I am ready to use my softrock receiver that was built by Tony but the
instructions for installing the software are not very clear to me. I
went to this page:


Terms like overlay, binary release, source, etc are confusing, plus
all the updates and corrections of the software.

How about a straightforward set of instructions for this installation?

I do not care to take software course to operate this receiver.

I have W98SE, a 1.3g cpu and the sound card is on the motherboard. I
know the sound card works when I click on an audio file and it is
stereo. Thank you in advance.

Richard Gagnon









Yahoo! Groups Links









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Yahoo! FareChase: Search multiple travel sites in one click.





Yahoo! Groups Links
Re: My receiver

Richard Gagnon
 

Hi Tony

Thank you but I have gone with Alberto's. It works. Rocky might not work with
98SE either according to the web site. I refuse to go with xp so maybe I might
start using my Linux (Linspire 5.0) computer and look around for software.
Someone did say they had a Linux version.

I am also considering selling off all the dds stuff and stick with my Icom R75
and Palstar R30C for receivers. Unfortunately I just ordered a bunch of parts
for LF use with the softrock.

Richard



--- Tony Parks <raparks@...> wrote:

Hi Richard,

I understand that PowerSDR will not run on a computer with W98SE. A SDR
programs that may run on W98SE is the Rocky program by by Alex VE3NEA. Go
to to down load Rocky.

Hope it will play for you.

73,
Tony KB9YIG

----- Original Message -----
From: "Richard Gagnon" <richg_1998@...>
To: <softrock40@...>
Sent: Sunday, October 23, 2005 8:33 PM
Subject: [softrock40] My receiver


Hello All

I am ready to use my softrock receiver that was built by Tony but the
instructions for installing the software are not very clear to me. I
went to this page:


Terms like overlay, binary release, source, etc are confusing, plus
all the updates and corrections of the software.

How about a straightforward set of instructions for this installation?

I do not care to take software course to operate this receiver.

I have W98SE, a 1.3g cpu and the sound card is on the motherboard. I
know the sound card works when I click on an audio file and it is
stereo. Thank you in advance.

Richard Gagnon









Yahoo! Groups Links









Yahoo! Groups Links








__________________________________
Yahoo! FareChase: Search multiple travel sites in one click.
Re: SDR front ends - discussion

 

Thanks Dick, an excellent list. I checked with partsandkits and
Diz does not have any PCB available. He does post the layout and it
is an ExpressPC board. One could purchase three for $61 from
ExpressPC which is high.

I have not checked for PCB availability with the CDG2000 or picastar
groups but they would be another alternative.

But we do need a different front end and they all would fill the
bill.

For those who have not used a roofing filter or a sharp RF front end
the immediate effect is improved weak signal reception due to
improved AGC action and noise reduction.

Another narrow band technique would be to use xtals like the Rock
Mite and Warbler circuits from Small Wonder Labs. The key word here
is 'narrow' and you lose the 48 khz wide band of the SDR, but would
improve the narrow slice around 7040 or maybe move it up to 7030 for
a better DX window.

The old glowbugs, the SP600 and R390A, were kings in this regard.
Even today if equipted with a SoftRock40 as a detector these old
boat anchors could provide superior reception to any 602 based mixer
circuit.

Anyhow, some nice DSP IF/audio programs are now available for us
(free)to experiment with, several different methods of 1f, 2f, and
4f switching QSD mixer circuits, reasonable priced DDS so with
winter setting in; now is the time to see what we all can build.

Tony's two board approach to the v5.0 SR40 would make it easier to
experiment with the frontend.

Stan AK0B

--- In softrock40@..., "patt896" <d.patten@a...> wrote:

Here are some good designs:

RF board from Radcom CDG2000.


RF board from MulitPig+ Kit.


LNA Boards from R2Pro.


RF board from Pic a Star


RF board from Heath SB-104A

Dick Patten
Re: My receiver

Leon Heller
 

----- Original Message -----
From: "Richard Gagnon" <richg_1998@...>
To: <softrock40@...>
Sent: Monday, October 24, 2005 3:06 AM
Subject: Re: [softrock40] My receiver


Well that did not seem to work. While trying to install I am told to go to
Microsoft and download something that wants to download and install at the same
time I am trying to install power sdr. I will not do that because I do not want
my computrer messed up and unusable. If anyone has a better answer I would
appreciate it. Thank you.
Try Alberto's SDRadio, it's much easier to install and use, although it seems to have a few bugs and crashes sometimes:



73, Leon
--
Leon Heller, G1HSM
leon.heller@...


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