|
First I would like to say how impressed I have been with the little SoftRock40 and the PowerSDR software. It has been a long time since I have worked HF and this has really got me interested again. Thanks to everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a simple server reading the I/Q signals and serving them to clients that connect (limited by my uplink speed). What is interesting about this is that each client can then independently tune across the passband of the receiver. Imagine a whole network of these little receivers around the world. Want to check out the conditions on 40 Mtrs in Europe - just connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good development systems for these environments. I do not have any Microsoft development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use a socket connection to receive the I/Q data, and also looking at implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In particular I would be looking for someone that would be prepared to look at the PowerSDR Windows code to modify it to get the audio data from a socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
|
This is a terrific idea, what a wonderful concept. The possibilities are infinite. Wish I knew enough to help out, but please pursue this line of thinking. A world wide receiver linked by the Internet, Wow :-)
John Melton wrote:
toggle quoted message
Show quoted text
First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time since I
have worked HF and this has really got me interested again. Thanks to
everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a
simple server reading the I/Q signals and serving them to clients that
connect (limited by my uplink speed). What is interesting about this is
that each client can then independently tune across the passband of the
receiver. Imagine a whole network of these little receivers around the
world. Want to check out the conditions on 40 Mtrs in Europe - just
connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good
development systems for these environments. I do not have any Microsoft
development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use
a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared to look
at the PowerSDR Windows code to modify it to get the audio data from a
socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
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Regards,
John
=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================
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Although it's not a softrock, there is a 40 meter QSD based 40 meter receiver on the internet, it is not full time. Several weeks ago, I sent a string of slow cw and was able to see my signal on the screen as it was received in South America.....which was neat.
Don't know if it's still up.
Try
There are also quite a few LF monitoring stations connected via the nternet, although these are usually very expensive receivers dedicated to this function full time and they display visual snapshots of the spectrum rather than making audio available. Typically, they monitor the lowfer (160-190 Khz) license free band and the 137 Khz ham bands (for most of the world, or part 5 license band for the US at 137 Khz).
Despite my best efforts to publicize the softrock type receivers, the general population tends to think a Kenwood or Yaesu megabucks receiver is the only receiver worth using. I think these sort of people are missing the boat, but that's a topic for another day.
I just finished my design for a 400 Khz to DC using an inexpensive crystal oscillator module and a programmable divider. It does not use DDS or VCO technology. It is very inexpensive to build and makes use of a programmable divider to cover 400 Khz and below. I'm happy to email the schematic to anyone who is interested in it.
I'm looking for a 12.8 Mhz TCXO or OXCO for the prototype although most users will not need the high stability oscillator. If anyone has a source for them at reasonable prices, please email me (off list).
Regards,
Art
toggle quoted message
Show quoted text
This is a terrific idea, what a wonderful concept. The possibilities are
infinite. Wish I knew enough to help out, but please pursue this line of
thinking. A world wide receiver linked by the Internet, Wow :-)
John Melton wrote:
First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time since I
have worked HF and this has really got me interested again. Thanks to
everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a
simple server reading the I/Q signals and serving them to clients that
connect (limited by my uplink speed). What is interesting about this is
that each client can then independently tune across the passband of the
receiver. Imagine a whole network of these little receivers around the
world. Want to check out the conditions on 40 Mtrs in Europe - just
connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good
development systems for these environments. I do not have any Microsoft
development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use
a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared to look
at the PowerSDR Windows code to modify it to get the audio data from a
socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
------------------------------------------------------------------------
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 <>.
------------------------------------------------------------------------
--
Regards,
John
=========================================================
email: k5jhf@...
photos:
files:
web page:
call sign: K5JHF
=========================================================
Yahoo! Groups Links
|
John,
It's good to see you are still alive and well!
Your idea of networking receivers around the world reminded me of the
Universal Digital Reciever (UDR) Project at Ohio State University, under
Prof. Grant Hampson. In looking at my bookmarks, I have
Alas, the link is no good. So a Google search of
"universal digital receiver project"
(you must include the quotes) yields a cached version of the page that was
good as of Nov. 25, 2004. The page tells more of the receiver hardware and
not much information about the software and networking. It was this
hardware that inspired the SDR-14 by RFSpace ().
I thought you might find it interesting and maybe it has some leads into
networking multiple receivers. I think this would be a very cool project.
73,
- Steve, N7HPR
(n7hpr@...)
toggle quoted message
Show quoted text
-----Original Message-----
From: softrock40@... [mailto:softrock40@...]On
Behalf Of John Melton
Sent: Saturday, October 01, 2005 11:03 AM
To: softrock40@...
Subject: [softrock40] softrock40 on the internet!
First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time since I
have worked HF and this has really got me interested again. Thanks to
everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a
simple server reading the I/Q signals and serving them to clients that
connect (limited by my uplink speed). What is interesting about this is
that each client can then independently tune across the passband of the
receiver. Imagine a whole network of these little receivers around the
world. Want to check out the conditions on 40 Mtrs in Europe - just
connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good
development systems for these environments. I do not have any Microsoft
development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use
a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared to look
at the PowerSDR Windows code to modify it to get the audio data from a
socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
|
Would it be really much fun having some super server streaming high resolution raw 20 meter or 144 Mhz
wide band data of the moon? { Aracibo )
73 Rein W6/PA0ZN
Steven Bible wrote:
toggle quoted message
Show quoted text
John,
It's good to see you are still alive and well!
Your idea of networking receivers around the world reminded me of the
Universal Digital Reciever (UDR) Project at Ohio State University, under
Prof. Grant Hampson. In looking at my bookmarks, I have
<>
Alas, the link is no good. So a Google search of
"universal digital receiver project"
(you must include the quotes) yields a cached version of the page that was
good as of Nov. 25, 2004. The page tells more of the receiver hardware and
not much information about the software and networking. It was this
hardware that inspired the SDR-14 by RFSpace (). <.>
I thought you might find it interesting and maybe it has some leads into
networking multiple receivers. I think this would be a very cool project.
73,
- Steve, N7HPR
(n7hpr@...)
-----Original Message-----
From: softrock40@... [mailto:softrock40@...]On
Behalf Of John Melton
Sent: Saturday, October 01, 2005 11:03 AM
To: softrock40@...
Subject: [softrock40] softrock40 on the internet!
First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time since I
have worked HF and this has really got me interested again. Thanks to
everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a
simple server reading the I/Q signals and serving them to clients that
connect (limited by my uplink speed). What is interesting about this is
that each client can then independently tune across the passband of the
receiver. Imagine a whole network of these little receivers around the
world. Want to check out the conditions on 40 Mtrs in Europe - just
connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good
development systems for these environments. I do not have any Microsoft
development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use
a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared to look
at the PowerSDR Windows code to modify it to get the audio data from a
socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
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 <>.
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--- In softrock40@..., John Melton <john.melton@s...> wrote: First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time since I have worked HF and this has really got me interested again. Thanks to everyone who has put this together.
I have been thinking about putting the SoftRock40 on the internet with a simple server reading the I/Q signals and serving them to clients that connect (limited by my uplink speed). What is interesting about this is that each client can then independently tune across the passband of the receiver. Imagine a whole network of these little receivers around the world. Want to check out the conditions on 40 Mtrs in Europe - just connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good development systems for these environments. I do not have any Microsoft development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on this to use a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared to look at the PowerSDR Windows code to modify it to get the audio data from a socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt I wish I could help I couldn't code my way out of a wet paper bag in C, C++, or C#. But Phil Covington N8VB seems to be working on a similar slant, his page www.philcovington.com, under software projects has a couple of intersting parts and with Mono someone might be able to get something started.
|
Hi Art, The 40m Spectrometer is in the process of being relocated to a new QTH. It was in the urban QTH of William, PY2GN, but William had to move and for a few weeks the spectrometer was temporarily in the QTH of William's friend. It is currently off-the-air and will be reactivated in William's rural QTH, a much quieter location. 73, -- Edson, pu1jte, n1vtn, 7n4ncl --- In softrock40@..., KY1K <ky1k@p...> wrote: Although it's not a softrock, there is a 40 meter QSD based 40 meter
receiver on the internet, it is not full time. Several weeks ago, I
sent a string of slow cw and was able to see my signal on the screen
as it was received in South America.....which was neat.
Don't know if it's still up.
Try
There are also quite a few LF monitoring stations connected via the
nternet, although these are usually very expensive receivers
dedicated to this function full time and they display visual
snapshots of the spectrum rather than making audio available.
Typically, they monitor the lowfer (160-190 Khz) license free band
and the 137 Khz ham bands (for most of the world, or part 5 license
band for the US at 137 Khz).
Despite my best efforts to publicize the softrock type receivers, the
general population tends to think a Kenwood or Yaesu megabucks
receiver is the only receiver worth using. I think these sort of
people are missing the boat, but that's a topic for another day.
I just finished my design for a 400 Khz to DC using an inexpensive
crystal oscillator module and a programmable divider. It does not use
DDS or VCO technology. It is very inexpensive to build and makes use
of a programmable divider to cover 400 Khz and below. I'm happy to
email the schematic to anyone who is interested in it.
I'm looking for a 12.8 Mhz TCXO or OXCO for the prototype although
most users will not need the high stability oscillator. If anyone has
a source for them at reasonable prices, please email me (off list).
Regards,
Art
This is a terrific idea, what a wonderful concept. The possibilities are infinite. Wish I knew enough to help out, but please pursue this
line of thinking. A world wide receiver linked by the Internet, Wow :-)
John Melton wrote:
First I would like to say how impressed I have been with the little
SoftRock40 and the PowerSDR software. It has been a long time
since I have worked HF and this has really got me interested again.
Thanks to everyone who has put this together.
I have been thinking about putting the SoftRock40 on the
internet with a simple server reading the I/Q signals and serving them to
clients that connect (limited by my uplink speed). What is interesting about
this is that each client can then independently tune across the passband
of the receiver. Imagine a whole network of these little receivers
around the world. Want to check out the conditions on 40 Mtrs in Europe - just
connect to one in Europe and tune around!
I am a Unix/Linux/Java software engineer by profession and have good
development systems for these environments. I do not have any
Microsoft development systems - note the email address ;-).
I have downloaded the Linux code and am currently working on
this to use a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java.
Would anyone be interested in helping with this development? In
particular I would be looking for someone that would be prepared
to look at the PowerSDR Windows code to modify it to get the audio data
from a socket rather than the audio device or a Wave file.
let me know what you think and if you can be of any help.
Regards,
John Melton, g0orx/n6lyt
------------------------------------------------------------------------ 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 <>.
------------------------------------------------------------------------ --
Regards,
John
=========================================================
email: k5jhf@s...
photos: ...
files: ...
web page: ...
call sign: K5JHF
=========================================================
Yahoo! Groups Links
|
Thanks for the info Edson. I must have caught it when it was running and it indicated my 100 watts was very readable there (from Maine). I'd appreciate knowing when it is activated again and what the new URL is.
I hope to have a similar setup using the softrock-LF available via the internet from my house someday. Having DSL is nice even though it isn't terribly fast:<:
Regards,
Art
toggle quoted message
Show quoted text
At 10:58 PM 10/1/2005, you wrote: Hi Art,
The 40m Spectrometer is in the process of being relocated to a new
QTH. It was in the urban QTH of William, PY2GN, but William had to
move and for a few weeks the spectrometer was temporarily in the QTH
of William's friend. It is currently off-the-air and will be
reactivated in William's rural QTH, a much quieter location.
73,
-- Edson, pu1jte, n1vtn, 7n4ncl
|
--- In softrock40@..., John Melton <john.melton@s...> wrote: I have downloaded the Linux code and am currently working on this to use a socket connection to receive the I/Q data, and also looking at
implementing a GUI interface - possibly in Java. John -- As far as the Linux code goes, it's pretty straightforward to implement networked sources and sinks for jack data without programming. The hooks to jack are made using ecasound. The hooks from ecasound to the network are accomplished by starting ecasound as a child of one of the netpipes programs (hose or faucet). This all happens at the command-line level. It's a little heavyweight to use for production, but it's an easy way to get off the ground at the start. 73 Frank AB2KT
|
Hi Frank,
thanks for the info. I will be away on vacation for the next week but will get back to looking at this when I get back.
Regards,
-- John g0orx/n6lyt
Frank Brickle wrote:
toggle quoted message
Show quoted text
--- In softrock40@..., John Melton <john.melton@s...> wrote:
> I have downloaded the Linux code and am currently working on this to
use
> a socket connection to receive the I/Q data, and also looking at
> implementing a GUI interface - possibly in Java.
John --
As far as the Linux code goes, it's pretty straightforward to
implement networked sources and sinks for jack data without programming.
The hooks to jack are made using ecasound. The hooks from ecasound to
the network are accomplished by starting ecasound as a child of one of
the netpipes programs (hose or faucet).
This all happens at the command-line level. It's a little heavyweight
to use for production, but it's an easy way to get off the ground at
the start.
73
Frank
AB2KT
SPONSORED LINKS
Shortwave receivers <> Ham radio <> ------------------------------------------------------------------------
YAHOO! GROUPS LINKS
* Visit your group "softrock40
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* To unsubscribe from this group, send an email to:
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<mailto:softrock40-unsubscribe@...?subject=Unsubscribe>
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John H. Fisher