Re: [Flexradio] SWR MALFUNCTION

2006-11-05 Thread K8MLM
 
Still trying to solve my high SWR fold back problem.
 
One other Flexer (K6JEK) had a problem with the J3 on the REF board  falling 
out and producing similar results. Mine is plugged in and fine, however  if I 
unplug the J3 I get the same response Jon ,K6JEK did... completely  bogus 
power out and reflected reading on the console -- 568 watts...   My reflected 
power reading is much higher than forward power... on the  console, reflected 
power reads 5-6 times higher than forward power...  obviously not correct.
 
Any other recommendations on what to look for?
 
Bob
K8MLM
 
In a message dated 11/4/2006 5:19:00 P.M. Eastern Standard Time,  
[EMAIL PROTECTED] writes:

I have a  strange fault.  The SWR bridge in the SDR-1000 seems to be   
malfunctioning.  

While on the air this morning the SWR jumped  and there didn't seem to be  
anything I could do to correct it.   I checked the SWR with another  
transceiver 
and verified it was  OK.  

It seems the SDR-1000 SWR bridge is reading in error and  causes  the 
amplifier to fold back.  In the SDR Tune position  the SWR reads  50:1 on all 
bands 
even to a dummy load and folds back  even with 1 watt  drive.

Has anyone ever experienced this?   Any recommendations.

I don't believe it is a software problem.   System ran correct before  the 
fault, receives fine and same SWR  problem exists after re-booting the  
computer 
and reloading the  software.

Bob
K8MLM
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Re: [Flexradio] SWR MALFUNCTION

2006-11-05 Thread Jim, W4ATK
Some time ago, I had a few questions regarding SWR metering. One of the
items brought out by Eric was that the SDR-1000 SWR metering interface is a
single wire on the parallel interface. The communication occurs serially
over this single line. Just how to resolve a problem in this area, I do not
have a clue other than to suggest you examine the connecions involved. In my
case I have the Z-100 turner and the above I would guess would also be true
in some measure if the tuner were not involved

73 Jim, W4ATK


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[Flexradio] Annoying audio anomaly after changing to another PC

2006-11-05 Thread Robert Cleve
I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an older
AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my transmit
audio using the P4 computer I now get a very short whooshing or swishing
sound immediately after every spoken word.  I use the Edirol FA66 audio
interface set to 194K sampling rate and I monitor RX/TX audio via headphones
plugged into the front of the FA66.
Here is how I have this PC set up:

MS Windows XP Home Ed 2002 with SP 2
Latest Windows updates including latest MS DirectX installed
CPU running at abut 48% utilization
No other applications running in the background
PowerSDR Setup:  Audio Buffer set at 2048 and Sampling Rate 192000
DSP Buffer set to 4096  with Hanning Window

Edirol FA66 Driver Settings:
Buffer Size set to MIN
WDM set to Smaller
ASIO set to Smaller

All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to nearly
0 dB.

Changing any of the above operating parameters has no effect on the audio
issue I've described.

I suspect this PC may be a bit undersized for this application but I'd
really like to continue using this PC for PowerSDR.  But,  I do have this
annoying audio issue that I'd like to clear up if possible.  I'd be grateful
for any suggestions.

Bob, KW4CQ

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Re: [Flexradio] L2 Cache effects on old processors

2006-11-05 Thread Ken - N9VV
Bob, I recall that the Sempron processors have a very small L2 cache 
(128KB or 256KB?) and that certainly will negatively affect Rx performance.

I started out on an inexpensive PC from Wal-Mart. It had a Celeron 
processor in it with 256KB L2 cache. XP worked like a charm on that box. 
With PowerSDR software Rx performance was only o.k. but I never 
experienced the thrills of great SAM, DRM, or 192Khz that many guys are 
expressing.  The CPU on that box is rated at 2.4Ghz, but that certainly 
is NOT the whole story - Bob N4HY is right that L2 cache is very 
important. Some newer processors (Dual-Core) have 2MB L2 cache. That 
must make a big difference.

It would be great if there were some sort of a standardized benchmark 
that we could run on ANY PC to measure it's relative strength for 
running PowerSDR with various Audio cards (Delta-44, Firewire,...). But 
in 2+ yrs no one has come up with such a test.  This week we discovered 
there is even a PCI LATENCY value that we totally hidden inside the PC 
BIOS. Now we have a way to manipulate that value, but it has gone 
unknown and hindering good performance for at 2+ yrs of PowerSDR.

One thing to do first is to shut off ALL applications except PowerSDR. 
That means no virus protection, no Windows Defender, no AIM, no junk.

You might find the XP Optimization tricks and tips useful from the Flex 
Knowledge Base that Tim Ellison put together:

  http://kb.flex-radio.com/article.aspx?id=10307
  http://kb.flex-radio.com/article.aspx?id=10133

BK de ken n9vv


Robert Cleve wrote:
 I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an older
 AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my transmit
 audio using the P4 computer I now get a very short whooshing or swishing
 sound immediately after every spoken word.  I use the Edirol FA66 audio
 interface set to 194K sampling rate and I monitor RX/TX audio via headphones
 plugged into the front of the FA66.
 Here is how I have this PC set up:
 
 MS Windows XP Home Ed 2002 with SP 2
 Latest Windows updates including latest MS DirectX installed
 CPU running at abut 48% utilization
 No other applications running in the background
 PowerSDR Setup:  Audio Buffer set at 2048 and Sampling Rate 192000
 DSP Buffer set to 4096  with Hanning Window
 
 Edirol FA66 Driver Settings:
 Buffer Size set to MIN
 WDM set to Smaller
 ASIO set to Smaller
 
 All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to nearly
 0 dB.
 
 Changing any of the above operating parameters has no effect on the audio
 issue I've described.
 
 I suspect this PC may be a bit undersized for this application but I'd
 really like to continue using this PC for PowerSDR.  But,  I do have this
 annoying audio issue that I'd like to clear up if possible.  I'd be grateful
 for any suggestions.
 
 Bob, KW4CQ

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Re: [Flexradio] Wave File Recording - Frequency Errors in Playback

2006-11-05 Thread Robert McGwier
Yes,  I do it all of the time.  All of the work I have done on the 
impulse response measurements and impulsive noise migitation has been 
done on windows using audacity because of the ease with which I can fire 
the impulse generator inside PowerSDR.

Bob
N4HY


Frank Brickle wrote:
 Has anybody tried using Audacity as the record/playback tool,
 hooking up to PowerSDR through VAC?

 On Linux there's a nice little tool called timemachine which
 constantly monitors selected audio channels. There's a tiny
 console. If you punch a button on it, the last 10 seconds (or
 whatever) of audio is written to a file. It's very handy to have a
 facility like that.

 73
 Frank
 AB2KT

   

-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
You see, wire telegraph is a kind of a very, very long cat.
You pull his tail in New York and his head is meowing in Los
Angeles. Do you understand this? And radio operates exactly
the same way: you send signals here, they receive them there.
The only difference is that there is no cat. - Einstein


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[Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06

2006-11-05 Thread Eric Ellison
Folks

 

Here is the link to the Teamspeak Town Hall Meeting held by Gerald, Eric and
John on Teamspeak this morning. The first Town Hall Meeting was held on Nov
20 2004 and had about 30 participants. Today we had a peak of 92
participants. Thanks Everyone for coming!

 

Thanks Gerald - K5SDR and Company for keeping us up to date on happenings. I
look forward to all the fascinating projections made today and the next
Meeting. 

Things with SDR-1000 and PowerSDR have moved Light Years in just a short
time!

 

Audio:

 

 

http://www.hamsdr.com/personaldirectory.aspx?id=452

 

 

 

Have a Great Week!

Eric2 - AA4SW

 

 

Soapbox Comments and Participants:

 

[07:58:12] Connecting to 70.84.228.202:9274

[07:58:12] Connected to server Ham Radio Teamspeak Server

[07:58:12] Flex - AMSAT - AmQRP

 

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[11:09:25] *chan* Ken - N9VV:  

 

Popcorn, peanuts, cracker jacks, hot dogs,  get em' while they are HOT

 

Souvenier Programs printed in beautiful color only $$ you can't tell the
players without a program.

 

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Re: [Flexradio] Annoying audio anomaly after changing to another PC

2006-11-05 Thread FlexRadio - Eric
Bob,

Try going to 96kHz.  I agree that you are pushing that Sempron pretty hard.
While the average CPU may be 48% (as this the performance monitor really
does present an average I believe), you are probably pushing closer to 100%
curing peaks like redrawing the screen.  Try turning of the display and see
if you get different results.

If the issue is not CPU load, it is probably related to stray RF.  Try
turning the Drive down to 0 and see if it goes away.  If it does, then you
need to hunt down where you are getting RF into the lines.


Eric Wachsmann
FlexRadio Systems

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
 radio.biz] On Behalf Of Robert Cleve
 Sent: Sunday, November 05, 2006 9:48 AM
 To: Flexradio
 Subject: [Flexradio] Annoying audio anomaly after changing to another PC
 
 I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an
 older
 AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my
 transmit
 audio using the P4 computer I now get a very short whooshing or swishing
 sound immediately after every spoken word.  I use the Edirol FA66 audio
 interface set to 194K sampling rate and I monitor RX/TX audio via
 headphones
 plugged into the front of the FA66.
 Here is how I have this PC set up:
 
 MS Windows XP Home Ed 2002 with SP 2
 Latest Windows updates including latest MS DirectX installed
 CPU running at abut 48% utilization
 No other applications running in the background
 PowerSDR Setup:  Audio Buffer set at 2048 and Sampling Rate 192000
 DSP Buffer set to 4096  with Hanning Window
 
 Edirol FA66 Driver Settings:
 Buffer Size set to MIN
 WDM set to Smaller
 ASIO set to Smaller
 
 All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to
 nearly
 0 dB.
 
 Changing any of the above operating parameters has no effect on the audio
 issue I've described.
 
 I suspect this PC may be a bit undersized for this application but I'd
 really like to continue using this PC for PowerSDR.  But,  I do have this
 annoying audio issue that I'd like to clear up if possible.  I'd be
 grateful
 for any suggestions.
 
 Bob, KW4CQ
 
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Re: [Flexradio] SWR MALFUNCTION

2006-11-05 Thread ah6jr
try some ferrite beads on the interface cable between the SDR 1000 and your 
computer. Place them close to your computer as possible.
This solution worked for me.

Stan
AH6JR


On Sunday 05 November 2006 04:31, Jim, W4ATK wrote:
   Some time ago, I had a few questions regarding SWR metering. One of the
 items brought out by Eric was that the SDR-1000 SWR metering interface is a
 single wire on the parallel interface. The communication occurs serially
 over this single line. Just how to resolve a problem in this area, I do not
 have a clue other than to suggest you examine the connecions involved. In
 my case I have the Z-100 turner and the above I would guess would also be
 true in some measure if the tuner were not involved

 73 Jim, W4ATK


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[Flexradio] [Fwd: IQOUT: Test tool for SDR transmitters]

2006-11-05 Thread Ken - N9VV
F.Y.I. Duncan M0KGK has coded a really nifty Tx testing program



 Original Message 
Subject: [softrock40] IQOUT: Test tool for SDR transmitters
Date:   Sun, 05 Nov 2006 18:37:17 -
From:   Duncan Munro [EMAIL PROTECTED]

For those doing the run of the latest Softrock transmitter, I've put
together a test tool to exercise the TX side.

As well as the mandatory tone generation with 90 degree spacing, it
also has adjustments for the following:

* Overall output
* Frequency
* I/Q amplitude ratio
* I/Q phase difference
* Mute left or right

It will use either normal Windows driver soundcards or ASIO cards for
output. Finally, it can key the Softrock TX on and off using the
serial port.

The mute left or right might seem a bit pointless, but I've been
suffering from 100% imaging on TX output. Muting left makes the TX
silent, muting right does nothing so that gives me a few clues as to
where to look :-)

Download is from http://www.m0kgk.co.uk/sdr/download.php
http://www.m0kgk.co.uk/sdr/download.php second item
on the list.

73,

Duncan M0KGK

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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06

2006-11-05 Thread Joe - AB1DO
Thank you!

When I click on the link, the audio immediately starts streaming. I would 
rather save the file to disk first and then play it. Anyone know how to do 
that?

Thanks
73 de Joe - AB1DO

- Original Message - 
From: Eric Ellison [EMAIL PROTECTED]
To: 'Flex-radio Reflector' flexradio@flex-radio.biz
Sent: Saturday, November 04, 2006 19:58
Subject: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06


 Folks



 Here is the link to the Teamspeak Town Hall Meeting held by Gerald, Eric 
 and
 John on Teamspeak this morning. The first Town Hall Meeting was held on 
 Nov
 20 2004 and had about 30 participants. Today we had a peak of 92
 participants. Thanks Everyone for coming!



 Thanks Gerald - K5SDR and Company for keeping us up to date on happenings. 
 I
 look forward to all the fascinating projections made today and the next
 Meeting.

 Things with SDR-1000 and PowerSDR have moved Light Years in just a short
 time!



 Audio:





 http://www.hamsdr.com/personaldirectory.aspx?id=452







 Have a Great Week!

 Eric2 - AA4SW


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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06

2006-11-05 Thread KD5NWA
Joe - AB1DO wrote:
 Thank you!
 
 When I click on the link, the audio immediately starts streaming. I would 
 rather save the file to disk first and then play it. Anyone know how to do 
 that?
 
 Thanks
 73 de Joe - AB1DO
 
I have never understood the idea of giving out a link to a ASP program 
that then downloads the files, how about just giving a link to the file 
itself?

You can't right click it and save it as a ASP link.

-- 

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

Sacred Cows make the best Hamburger!  Don Seglio Batuna

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Re: [Flexradio] Annoying audio anomaly after changing to another PC

2006-11-05 Thread Dudley Hurry
Bob,

You might also move the Process Priority up a notch or even to
Real-Time,  but you maybe running out of CPU cycles to refresh the
screen..  

73,
Dudley 
WA5QPZ


On Sun, 2006-11-05 at 13:24 -0600, FlexRadio - Eric wrote:
 Bob,
 
 Try going to 96kHz.  I agree that you are pushing that Sempron pretty hard.
 While the average CPU may be 48% (as this the performance monitor really
 does present an average I believe), you are probably pushing closer to 100%
 curing peaks like redrawing the screen.  Try turning of the display and see
 if you get different results.
 
 If the issue is not CPU load, it is probably related to stray RF.  Try
 turning the Drive down to 0 and see if it goes away.  If it does, then you
 need to hunt down where you are getting RF into the lines.
 
 
 Eric Wachsmann
 FlexRadio Systems
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
  radio.biz] On Behalf Of Robert Cleve
  Sent: Sunday, November 05, 2006 9:48 AM
  To: Flexradio
  Subject: [Flexradio] Annoying audio anomaly after changing to another PC
  
  I have switched running PowerSDR Beta 1.6.3 from my P4 computer to an
  older
  AMD Sempron 2400 1.6 GHz + 1 MB DDRAM and unlike when monitoring my
  transmit
  audio using the P4 computer I now get a very short whooshing or swishing
  sound immediately after every spoken word.  I use the Edirol FA66 audio
  interface set to 194K sampling rate and I monitor RX/TX audio via
  headphones
  plugged into the front of the FA66.
  Here is how I have this PC set up:
  
  MS Windows XP Home Ed 2002 with SP 2
  Latest Windows updates including latest MS DirectX installed
  CPU running at abut 48% utilization
  No other applications running in the background
  PowerSDR Setup:  Audio Buffer set at 2048 and Sampling Rate 192000
  DSP Buffer set to 4096  with Hanning Window
  
  Edirol FA66 Driver Settings:
  Buffer Size set to MIN
  WDM set to Smaller
  ASIO set to Smaller
  
  All Mode Specific controls set to 0 and MIC at 27 peaking TX audio to
  nearly
  0 dB.
  
  Changing any of the above operating parameters has no effect on the audio
  issue I've described.
  
  I suspect this PC may be a bit undersized for this application but I'd
  really like to continue using this PC for PowerSDR.  But,  I do have this
  annoying audio issue that I'd like to clear up if possible.  I'd be
  grateful
  for any suggestions.
  
  Bob, KW4CQ
  
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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06 - (right-click to save)

2006-11-05 Thread Dale Boresz
Folks -- I've added a link to the file download section of hamsdr that 
will allow you to save the file.

To do so:
- Go to http://www.hamsdr.com/dnld.aspx
- Note the Town Hall meeting file is the first one in the list
- Right-click the Right-click to Save link in the fourth column, and 
select Save Target As ... or Save Link As ... from your browser's 
fly-out contect menu, and save the file wherever you wish.

73, Dale
WA8SRA



Joe - AB1DO wrote:

Thank you!

When I click on the link, the audio immediately starts streaming. I would 
rather save the file to disk first and then play it. Anyone know how to do 
that?

Thanks
73 de Joe - AB1DO

- Original Message - 
From: Eric Ellison [EMAIL PROTECTED]
To: 'Flex-radio Reflector' flexradio@flex-radio.biz
Sent: Saturday, November 04, 2006 19:58
Subject: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06


  

Folks



Here is the link to the Teamspeak Town Hall Meeting held by Gerald, Eric 
and
John on Teamspeak this morning. The first Town Hall Meeting was held on 
Nov
20 2004 and had about 30 participants. Today we had a peak of 92
participants. Thanks Everyone for coming!



Thanks Gerald - K5SDR and Company for keeping us up to date on happenings. 
I
look forward to all the fascinating projections made today and the next
Meeting.

Things with SDR-1000 and PowerSDR have moved Light Years in just a short
time!



Audio:





http://www.hamsdr.com/personaldirectory.aspx?id=452







Have a Great Week!

Eric2 - AA4SW




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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06 - (right-click to save)

2006-11-05 Thread KD5NWA
Dale Boresz wrote:
 Folks -- I've added a link to the file download section of hamsdr that 
 will allow you to save the file.
 
 To do so:
 - Go to http://www.hamsdr.com/dnld.aspx
 - Note the Town Hall meeting file is the first one in the list
 - Right-click the Right-click to Save link in the fourth column, and 
 select Save Target As ... or Save Link As ... from your browser's 
 fly-out contect menu, and save the file wherever you wish.
 
 73, Dale
 WA8SRA
 
 
 
 Joe - AB1DO wrote:
 
 Thank you!

 When I click on the link, the audio immediately starts streaming. I would 
 rather save the file to disk first and then play it. Anyone know how to do 
 that?

 Thanks
 73 de Joe - AB1DO


Good going, I'm sure many would love to download the file and listen at 
their convenience on their iPods or MP3 players.

Thanks
-- 

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

Sacred Cows make the best Hamburger!  Don Seglio Batuna

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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06

2006-11-05 Thread Dale Boresz
Ray -- I fixed the problem after Joe reported it, so the link wasn't 
there when he had tried earlier.

73, Dale
WA8SRA


Ray J wrote:

what os are you using?

I click on the link supplied and it then askes me if I want to save or 
open the file...

W9RAY



KD5NWA wrote:

  

Joe - AB1DO wrote:
 



Thank you!

When I click on the link, the audio immediately starts streaming. I would 
rather save the file to disk first and then play it. Anyone know how to do 
that?

Thanks
73 de Joe - AB1DO

   

  

I have never understood the idea of giving out a link to a ASP program 
that then downloads the files, how about just giving a link to the file 
itself?

You can't right click it and save it as a ASP link.

 





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.

  



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Re: [Flexradio] Teamspeak Audio Town Hall Meeting 11-04-06

2006-11-05 Thread Tom Thompson
KD5NWA wrote:

Joe - AB1DO wrote:
  

Thank you!

When I click on the link, the audio immediately starts streaming. I would 
rather save the file to disk first and then play it. Anyone know how to do 
that?

Thanks
73 de Joe - AB1DO



I have never understood the idea of giving out a link to a ASP program 
that then downloads the files, how about just giving a link to the file 
itself?

You can't right click it and save it as a ASP link.

  

When I click on the link, my browser gives me the choice of playing it 
or downloading it (Netscape 7.2).

Tom   W0IVJ
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