That is a bandaid, and not a real fix. Now you are forced to send high
speed retuning commands as you dial through the band. The problem is the
software offset is not being shared properly in the interop with CWSkimmer.
This is a bug, most likely in the interface program and needs to be fixed.
Ed:
I understand much better now. I see no impediment to adding the changes you
made to Callback 2 to Callback1 other than the ones you have alluded to. I
have loaned out my SDR-1000's to the state of Maryland and the junk box. I
don't even have the high end sound cards in my computer any
I don't understand all of this. Explain it more slowly. I WROTE THE VAC
INTERFACE IN PRETTY MUCH ITS CURRENT FORM on the SDR-1000.
If it doesn't work, I think we broke something.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
You have no idea how many times I have wanted to rid us of that opening into
the gates of Hades (Access/Jet). This would finally get it done so I hope
you are right.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Don't despair, not
Thanks!!
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Don't despair, not even over the fact that you don't despair. , Kafka
-Original Message-
From: Neal Campbell [mailto:[EMAIL PROTECTED]
Sent: Sunday, November 09, 2008 6:30
My apologies to all the users who are going WHAT THE HECK?
I sent the original link to the wrong address.
Back to my hole.
Thanks again, Neal.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Don't despair, not even over the fact
I am looking for anything remotely resembling expert advice on AJAX. I am
looking for recommendations on books, development tools, etc.
Please respond directly to me. I am doing an open source project and I want
to do a lot of the work using AJAX.
Such as
http://www.n2yo.com
VERY sound advice.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Lux, James P
Sent: Tuesday, October
The meter reads, as it is should, the sum (integral) of all the power inside
the filter. The noise floor on the panadapter will ALWAYS be less than the
meter as a result. This is correct and is why the meter is about the most
accurate one in amateur radio.
Bob
ARRL SDR Working Group Chair
I am sure that some of you have been seeing me speak up in other groups
about small footprint computers that are available for SDR activities.
The beagle board (http://beagleboard.org) is a very powerful low power
engine based on the OMAP3530 from TI. GnuRadio is being ported to it
(Philip
At long long last. I have been begging him since I discovered VAC for our
use.
Thanks for pointing it out.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original Message-
From:
It is impossible for me to count the number of times I have wanted to write
I would like to recall the message... Usually about 1 second after I hit
the send key.
;-).
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow
The 5000 has band tunable carrier suppression. These numbers are stored in
the radio memory at the factory during calibration.
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original
In other words, with the rich set of resources with more fine grained
control, and easier to get at components, the DESIGNERS will have all the
tools they will need if we do our job right. What we have had for several
years is the monolithic program almost (even though there were clear parts),
McGwier
Cc: Tim Ellison (W4TME); [EMAIL PROTECTED]; flexradio@flex-radio.biz
Subject: Re: [Flexradio] New Model from FlexRadio?
On Sun, Jul 27, 2008 at 7:10 PM, Bob McGwier [EMAIL PROTECTED] wrote:
Frank and I differ. The ultimate capabilities are profoundly revolutionary,
as revolutionary
Frank and I differ. The ultimate capabilities are profoundly revolutionary,
as revolutionary an impact on radio as say CW Skimmer is having on CW
contesting/operating. That said, the opening salvos will be functional,
not glitzy and the glitz will come with time.
Bob
ARRL SDR Working Group
Yes we are working with it. Eric got jackmp to show up in PowerSDR
yesterday. This can and eventually will replace VAC. It is under rapid,
and I mean almost hard to follow, development and they have not done release
one. Netjack 2 just became semifunctional. There is a lot to do but the
real
To tell you how bad Vista is, most seem to have forgotten that XP was
released with ten thousand DOCUMENTED bugs.
Welcome to lala land of MS.
I will never forget ME. My mother in law did not speak to me for a year
after I installed it on her computer. Where can I buy ten more copies?
;-).
What a fantastic idea. This is the first thing that has made me the
slightest bit down that I will be in Dublin, Ireland that weekend!
Bob
ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
There are some not understood faults in the use of VAC, it being closed
source, etc.
The following is a general rule of thumb. Open on the PowerSDR side, a VAC
cable that is a integer divisor of the sample rate in the radio.
Open the MixW, etc. AFTER this cable has been opened by PowerSDR.
-Original Message-
From: Brian Lloyd [mailto:[EMAIL PROTECTED]
Sent: Sunday, July 20, 2008 3:18 PM
To: Jerry Flanders
Cc: Bob McGwier; flexradio@flex-radio.biz
Subject: Re: [Flexradio] differences between PSK31 demodulators
On Jul 20, 2008, at 11:53 AM, Jerry Flanders wrote:
At 02:28
What Frank suggests and what Brian suggested before: modify threading
priorities, has been done for the audio threads in PowerSDR for, literally,
years. All threads in PowerSDR can be run at real time through a setting in
the Setup panel but this is not necessary since what we really care about
http://flac.sourceforge.net/
ARRL SDR Working Group Chair, AMSAT VP Engineering.
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
John:
You may already know about this stuff but I thought I would share it with
everyone.
The polyphaser stuff that I have in my verticals and wire antennas have paid
for themselves many times over.
http://www.polyphaser.com/
ARRL SDR Working Group Chair, AMSAT VP Engineering.
Member: ARRL,
Yes, it can be locked.
ARRL SDR Working Group Chair, AMSAT VP Engineering.
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Brian Lloyd
Congratulations on the new harmonic and subharmonic. ;-).
Best of luck.
Bob
ARRL SDR Working Group Chair, AMSAT VP Engineering.
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Trample the slow Hurdle the dead
-Original Message-
From: [EMAIL
Joe:
Hey buddy. Welcome to the party! I think we might have enough neighbors to
start a Friends of Flex Radio coffee klatch here and meet a bunch of new
people!
Bob
ARRL SDR Working Group Chair, AMSAT VP Engineering.
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
Brian:
The firmware is indeed closed as this IS REQUIRED to be in compliance with
law. We are not violating any FSF rules because the firmware runs under .
We have been promised a full technical manual, which would include the API.
My old pal Brian needs to join dttsp-linux where the
m3pkr wrote:
Hi everyone
I was wondering if people find the F.M. quality somewhat lacking, is this due
to software or is just me.
SDR-1000 , Edirol FA-66, Aiwa powered speaker
Barry
M3PKR
Barry:
It is the software. I need to revisit it after the major work is done
on getting the
I have downloaded the latest CamStudio. I am attempting to capture me
processing some NASTY IQ files submitted by an Indian ham friend of mine
(VU2RDD) with the features of PowerSDR in a multimedia presentation.
The video is captured beautifully. The audio, which I am sending to the
SoundMax
Bill:
I was just going to say you need a front end loader to wade into mine.
The sedimentation filing system still works for me.
Bill, please send me some details privately on your FANTASTIC weather
web site. I have a wire full of one wire instruments and at one time I
was going to learn a
Dan Scott wrote:
The Transmit Equalizer no longer has the 160Hz Notch Filter. For us that
needed this, will it be coming back?
Thanks,
Dan
I am writing an sse/sse2/3dnow library that will help DttSP, GnuRadio,
Flex, etc. do lots of different things faster. It is about 1/2 done for
Try the $10 Syba card everyone is referring to. The Lucent Agere chip
set seems to be a winner and how wrong can you go for $10?
Bob
Philip M. Lanese wrote:
Thanks for the heads-up Bob.
The P4C800 Deluxe is the MOBO I switched to in order to run my original 3
board
set and it still
If you go to Andy's fantastic site for his remarkable shack, look at
the for sale page:
http://members.cox.net/analogservice/gear%20for%20sale-1.htm
You can find the piece of gear that inspired me to do the panadapter
with Eric. The Heathkit HO-13 was a work of art for its time.
Bob
N4HY
True but I think you already know I did HMM using mixtures of Gaussians
in 1986 in possibly the best set of technical papers I ever wrote at
our common place of business. In a more refined version of it later,
applied to Markov chains and not to continuous time and space stochastic
Phil:
I measured the MDS on my radio (a beta, not a production unit but with
all known issues fixed on the 6 meter amplifier) and it had an MDS of
-130 dBm at 50.125.
While this is not deaf as a stone by any stretch of the imagination, I
would suggest at least a 10 dB preamp, one of the newer
Gerd:
They just reopened for business in Florida. They like telephone orders
or web orders. Call them, Sandra will help you.
73's
Bob
N4HY
Gerd Loch wrote:
Hi,
I tried to get informations on the int. shipping costs from DownEast on
their webpages but it seems impossible to get it and I
Here is the grand experiment we are going to try when we finally get to
calm down from the Flex5000 rush to finish. I have done enough
matlab/octave experimentation to expect it to work so long as we define
what it is we mean by work.
Suppose you are listening to weak signal A. Strong
Mike Naruta wrote:
YES!
Time to upgrade my PC again. :)
Na. We are not using the power of some of the measliest graphics
cards out there. I never even warm up my two generation old AGP Radeon
card. Why? We are insisting on continuing to use this resource hogging
GDI because
This one shows the RF insides that I did not capture at Dayton:
http://www.qrpradio.com/pub/Ham/Dayton2007/2848x2132/00071.jpg
Every major RF stage in the exciter and receiver is in it own shielded
box. The amplifier is on the other side of the heat sink and is a very
multilayer board with
Lee A Crocker wrote:
Jim
I would be interested in hearing more about the proper nomenclature to
describe the signal path in a SDR. I think this might be the key to being
able to adequately describe in simple terms to the average ham how a SDR
works. I have been writing some stuff to try
We made HUGE advances in the CW TX latency, etc. when we moved to full
duplex transmit before and during a trip I made to Austin in support of
work activities. Eric complete broke the way the radio is instantiated
and replaced it with a radio class architecture which allows complete
memory
William Hein wrote:
The reported Flex-5000 2-kHz 105-dB IM3 figures are very impressive and would
land at #2 on W8JI's rx performance chart if tested by Tom and assuming the
figures hold:
http://w8ji.com/receiver%20IM3%20sorted.htm
A figure I don't see reported for the Flex-5000 is
I agree with this completely. We should not throw out the baby with the
bath water. This hoopla will die down once the radio is introduced and
I for one definitely prefer having all messages dealing with software
radio issues as applied to Flex in one place.
Since the SDR-1000, which is
Many can see in the SDR-X branch in the PowerSDR svn repository and that
some changes have been made to the sdr code to accommodate the new Flex
5000.
I would like to discuss these, why they have been done, why they will
NOT be there long term, why we are still following the basic vision of
Brian:
What is happening is MixW is changing the radio's mode from DigU to USB
and you have VAC enable in digital modes checked in your setup box.
This is VERY aggravating. We need Bob to make a change to CAT: If we
are in DigU and we are told to go to USB, we lie and say we did and we
This issue will be completely eliminated soon for both SDR-1000 and Flex
5000 series. You gotta love software radio.
Bob
N4HY
Jeff Anderson wrote:
We shouldn't forget that the flex *does* have an image (at 22 KHz), and that
there can be image rejection issues if the signal at the image
It is my understanding from Gerald that he has an OEM license for XP
that is good for quite some time (years).
Bob
N4HY
Philip Covington wrote:
Re: Q23
Could someone from Flex please give a general overview of the hardware
design changes in the SDR-5000 from the SDR-1000 design? I think
Maarten wrote:
Could the sampling of the Noise Blanker be done with another Sub RX? You
could park the Noise Blanker sampling Sub RX in a quiet section of the band.
-
Yes. In the new code being developed for dttsp, we are going to be
training the code for the impulse response of the
KA5MIR wrote:
At my noisy qth, I have to use the noise blankers. This results in strong
signals OUTSIDE the filtered bandwidth, anywhere in the 96kc passband,
modulating the noise blanker INSIDE the filtered frequency range. It often
causes desired signals in the filtered range to be
Jean-marc BORD wrote:
Hi Tim,
Thank you for your feedback, I love your marketing and your sales
addiction.
As least when you say No, one would love to have a minimum explanation
rather than just 'No'.
I can cope with answer 37 as it is pure hardware design, but 38 is just
not a fair
That oscillator is utterly spectacular.
Have a good time with it!
Bob
N4HY
Mike Monnier wrote:
Hello,
I picked up a Brandywine GPS4 time and frequency standard that I hope to use
with my SDR 1000. I would like you to look at the phase noise specifications
and tell me if this item is
, this will be
most welcome.
THANK YOU BOB MCGWIER!
73',
Jeff
On Thursday 12 April 2007 11:11:55 am you wrote:
Maarten wrote:
Could the sampling of the Noise Blanker be done with another Sub RX? You
could park the Noise Blanker sampling Sub RX in a quiet section of the
band
This is a done deal on Linux and on Windows it is conceptually trivial
but would require custom software to do it since jack does not exist on
Windows yet. There is supposedly a windows jack effort underway. But I
would like breathing to be a long term thing so I am not holding my
breath
Robert McGwier wrote:
Ignacio:
This is even stranger. Where the calibration is done in the code is in
console.cs There are NO differences between John Eckerts console.cs
calibration and the official console.cs in svn 807.
I got the code module wrong, but the idea right. I can find
Philip Covington wrote:
On 1/3/07, Bob McGwier [EMAIL PROTECTED] wrote:
snip
After we have the radio running either stand alone with a Linux box in
it (or in the case of SDR-1000, by it) we can then work out the delivery
of audio across the room, across town, across the planet
Lyle Johnson wrote:
... It makes no sense to run anything but Linux on the embedded
controllers and then have them be a server.
Um, I respectfully disagree. It may make no sense to run Vista / XP /
Windows-flavor-of-the-era on an embedded controller, but if, for
example, one wants to
Frank Brickle wrote:
Many of the Cognitive Radio functions are likely to eat a lot of
cycles. This is particularly true for the ones that require
adaptive calculations, where there isn't a lot of offline work you
can do in advance, or those which need intricate probability
models with
Yes! This diagram and the accompanying text makes it explicit. It does
support USB.
Bob
Philip Covington wrote:
* High Performance Software Defined Radio Discussion List *
On 12/7/06, lyle johnson [EMAIL PROTECTED] wrote:
We need to figure out if we plan to support
the
I whipped up a twenty button GUI and picture box using Monodevelop and
GTK# and the stetic form developer in about 20 minutes. 15 of those
were learning my way around the toolbars, etc. However, anyone doing
it will find it has a familiar feel if they have used VS before. It is
the same
John:
Why don't we give you a BRANCH in the svn tree?
Bob
[EMAIL PROTECTED] wrote:
-Original Message-
From: ECKERT,JOHN (A-USA,ex1)
Sent: Monday, October 23, 2006 1:38 PM
Hi,
I want to use Tortoise SVN to manage my customized PowerSDR source code. I
make a lot of changes to
I know you will be happy that the generation and shaping you suggest is
exactly what we do and what can be done either on the PC or the Janus
board (new USB widget). The shaping derived by Frank for CW produces
the most gorgeous scope patterns one can imagine for the elements.
Predistortion
John:
Could you please pass along the part number/supplier for the particular
power supply you used? I would like to regain full use of my bench
power supply and I have just been too busy (too lazy?) to do any research.
Bob
[EMAIL PROTECTED] wrote:
Hi Folks,
I just wanted to let you know
What he said!
Jim Lux wrote:
At 06:36 AM 9/20/2006, Robert McGwier wrote:
I believe that Peter has probably hit on the correct interpretation. If
so (and I will test this today) and TortoiseSVN is NOT giving a cannot
write error message, this is a bug since this cannot be allowed to
Jerald:
Hover over the VFOb numbers (on the right at the top of the display)
and use the mouse wheel to tune both VFO's to exactly the same
frequency. Then hover over the 100 Hz position and mouse wheel up and
down. You should see the green box for the subRX move around with
respect to the
I agree with Bill on this both from my understanding of how the sound
hosts work, the drivers work on D44, Presonus, and Lynx (my
understanding is not applicable to others) and better yet, on
observation using my 4 trace oscilloscope making measurements!
Bob
N4HY
Bill Tracey wrote:
Don't
On the other hand I use the QRP output for my 222 MHz, 70cm, 902/3 MHz
transverters from DEMI and they work perfectly.
Bob
[EMAIL PROTECTED] wrote:
Hi Larry,
Here are your answers:
Question 1: Down East Microwave
Question 2: No
73,
Dan KB5MY
Hello all:
I have a question
Simon:
By the time I figured out the 30-th or was it 40-th value to put into a
struct member to use this routine, I decided to stick with what we
have. I know you have a wicked sense of humor but I missed the humor
here altogether :-P . We can modify what we have on the try/catch
approach
to make a fractional dB noise figure front end (say EME
style), you still have a positive system input IP3. This is important
in areas where you have strong signals such as all over the northeast or
the signal of the ham neighbor down the street you have to talk to.
Bob
Bob McGwier N4HY
The MDS is six meters is no better than it is on the lower bands (~128
dBm on 20 meters) and is probably a little bit worse.Six meter rigs
with any serious intent need to have an MDS about 20 dB better than
this. This system is clearly intended to be used with external stuff,
both an
David:
We have an impulse generator we have been moving at a glacial space
towards utilizing. This impulse generator will back out the entire
chain, front end through A/D's with a few simple measurements since we
can directly measure the impulse response.
It will come but not until after
FYI. Eugene Muzychenko is the author of VAC.
Bob
Sergey Kuzmin wrote:
Hello
New beta 3
http://www.asio4all.com/
a.. Add intersection checking. Thanks to Eugene Muzychenko once again for
having me have another look into this and figuring out how it _might_ work.
As a matter of fact, it
If you are one of those poor souls who gets Invalid Putty Port when
attempting to use TortoiseSVN (which has made my productivity level from
my office just about zero) the fix is beyond simple. I finally whined
in enough places that the correct answer was retrieved (in my opinion A
BUG that
Upon release of 1.6.0 on the web site, we contemporaneously reorganized
the SVN structure. It was basically a blow up and start over
operation and was undertaken using Tortoise/SVN sledge hammers. After
consulting with Eric and receiving advice from others we made the
changes, and then made
It can be implemented in hardware and it should be along with the proper
keyer and sidetone where they both belong. We should be taking the CW
sidetone and doing demod/remod.
Thank you for being gentle with out ineptitude.
Bob
N4HY
Mark Ericksen wrote:
Hello everyone, I am a soon to
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