When JT65A first became available several years ago I used it with great
success. Then I went on to other modes and stopped using it. I came back to it
about a year ago but for the life of me I haven't been able to get it to
function so I guess it is time to ask for help.

I cannot get the program to decode any more than about 5% of transmissions
making qsos impossible. I set gain to 0db, use an xp computer with 2.0 gig
processor, and an FT-897D transceiver. I have tried strong signals, weak signals
and in between. The program just does not want to copy JT65A signals though it
does decode a very few which makes this very peculier. I have tried different
settings and went through the bozo guide several times with no success.

Any suggestions or assistance as to why this is happening is much appreciated.

Oliver

 

When JT65A first became available several years ago I used it with great success. Then I went on to other modes and stopped using it. I came back to it about a year ago but for the life of me I haven't been able to get it to function so I guess it is time to ask for help.

I cannot get the program to decode any more than about 5% of transmissions making qsos impossible. I set gain to 0db, use an xp computer with 2.0 gig processor, and an FT-897D transceiver. I have tried strong signals, weak signals and in between. The program just does not want to copy JT65A signals though it does decode a very few which makes this very peculier. I have tried different settings and went through the bozo guide several times with no success.

Any suggestions or assistance as to why this is happening is much appreciated.

Oliver

Hello Oliver,

Here is my set up checklist for new JT65A users:

http://www.bigskyspaces.com/w7gj/JT65.pdf

Make sure to enter the sound card correction factors too!  GL and VY 73, Lance


On 9/3/2012 3:29 AM, ollieoxen27 wrote:
> When JT65A first became available several years ago I used it with great
success. Then I went on to other modes and stopped using it. I came back to it
about a year ago but for the life of me I haven't been able to get it to
function so I guess it is time to ask for help.
>
> I cannot get the program to decode any more than about 5% of transmissions
making qsos impossible. I set gain to 0db, use an xp computer with 2.0 gig
processor, and an FT-897D transceiver. I have tried strong signals, weak signals
and in between. The program just does not want to copy JT65A signals though it
does decode a very few which makes this very peculier. I have tried different
settings and went through the bozo guide several times with no success.
>
> Any suggestions or assistance as to why this is happening is much appreciated.
>
> Oliver
>
>
>
>
>
> ------------------------------------
>
> To unsubscribe, send an email to:
> wsjtgroup-unsubscribe@yahoogroups.com
>
> WSJTGroup HomePage http://www.ykc.com/wa5ufh/
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>


--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M)
P.O. Box 73
Frenchtown, MT   59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Windows Messenger: W7GJ@...
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!

If you're only using JT65A, W6CQZ's JT65-HF software is much easier to
use than WSJT and provides a multi-decoder. You must, of course, pay the
same careful attention the clock, sound card timing, and setting audio
levels between the radio and the computer. The only thing that JT65-HF
lacks is the "deep search" function that compares the received signal to
a database of callsigns and expected exchanges to copy signals about 2dB
deeper into the noise.

It has also been my experience that digital modes benefit GREATLY from a
decent (but not expensive) USB sound card.  The Tascam US122 is a
particularly good buy.

73, Jim K9YC

On 9/2/2012 10:54 PM, Lance Collister, W7GJ wrote:
> Hello Oliver,
>
> Here is my set up checklist for new JT65A users:
>
> http://www.bigskyspaces.com/w7gj/JT65.pdf
>
> Make sure to enter the sound card correction factors too!  GL and VY 73, Lance
>
>
> On 9/3/2012 3:29 AM, ollieoxen27 wrote:
>> When JT65A first became available several years ago I used it with great
success. Then I went on to other modes and stopped using it. I came back to it
about a year ago but for the life of me I haven't been able to get it to
function so I guess it is time to ask for help.
>>
>> I cannot get the program to decode any more than about 5% of transmissions
making qsos impossible. I set gain to 0db, use an xp computer with 2.0 gig
processor, and an FT-897D transceiver. I have tried strong signals, weak signals
and in between. The program just does not want to copy JT65A signals though it
does decode a very few which makes this very peculier. I have tried different
settings and went through the bozo guide several times with no success.
>>
>> Any suggestions or assistance as to why this is happening is much
appreciated.
>>
>> Oliver
>>
>>
>>
>>
>>
>> ------------------------------------
>>
>> To unsubscribe, send an email to:
>> wsjtgroup-unsubscribe@yahoogroups.com
>>
>> WSJTGroup HomePage http://www.ykc.com/wa5ufh/
>>
>>
>>
>>
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>

Ollie,

I had the same problem when going to a new old computer.  Old puter correction
was .9788, which in fact did not work.  I followed Jim K9YCs advice and put a
Tascam US 122 mkII usb soundcard on it and voila!  One caveat--use the latest
driver AND firmware from the Tascam site.  Mine would not work without them.  A
plus on this card are nice big knobs for adjusting gain.  I think my correction
now is. 9998, which is pretty damn good for a $70 card.

  73

Eric WD6DBM

iPhone Free since 2/12 and Never Going Back

Is WSPR decoding too intensive for low power processors?  Does it require
floating point?  Has anyone written a decoder for a micro, DSP or FPGA? I am
just wonder how difficult it would be to make a low-power receiver/decoder. I
guess an embedded Linux solution is possible.

Thanks.
Andy WA3LTJ

 

Is WSPR decoding too intensive for low power processors? Does it require floating point? Has anyone written a decoder for a micro, DSP or FPGA? I am just wonder how difficult it would be to make a low-power receiver/decoder. I guess an embedded Linux solution is possible.

Thanks.
Andy WA3LTJ

This may have ben posted here already but I could noit find it when I searched.
New install was crashing because I misconfigured the sound options.
When I ran wsjt from the command line I could see the error.
But I had difficulty knowing where the application stored it's user data at.
Re-installing the application did not help.
I finally found it and manually modifed the text file.
On win7 it is located in:
C:\Users\sdl\AppData\Local\VirtualStore\Program Files (x86)\WSJT9

Note that "sdl" is the user name.

Steve
N3PU

PS Maybe I can find my own post ~2 years down the road when I do the same thing
again!

Hi Steve and all,

A better course of action is to follow the advice in the WSJT 9.0
Supplement to User's Guide:
http://physics.princeton.edu/pulsar/K1JT/WSJT_9.0_Supplement.pdf .

Install WSJT in a directory such as C:\HamRadio\WSJT9.  Then everything
related to WSJT will be in a single, easy-to-find location.

	 -- 73, Joe, K1JT

On 9/5/2012 6:24 AM, Steve wrote:
> This may have ben posted here already but I could noit find it when I
searched.
> New install was crashing because I misconfigured the sound options.
> When I ran wsjt from the command line I could see the error.
> But I had difficulty knowing where the application stored it's user data at.
> Re-installing the application did not help.
> I finally found it and manually modifed the text file.
> On win7 it is located in:
> C:\Users\sdl\AppData\Local\VirtualStore\Program Files (x86)\WSJT9
>
> Note that "sdl" is the user name.
>
> Steve
> N3PU
>
> PS Maybe I can find my own post ~2 years down the road when I do the same
thing again!
>
>
>
>
>
> ------------------------------------
>
> To unsubscribe, send an email to:
> wsjtgroup-unsubscribe@yahoogroups.com
>
> WSJTGroup HomePage http://www.ykc.com/wa5ufh/
>
>
>
>
>
> Yahoo! Groups Links
>
>
>

Hi Andy, Kristoff, and all,

>> Is WSPR decoding too intensive for low power processors? Does it
>> require floating point? Has anyone written a decoder for a micro, DSP
>> or FPGA? I am just wonder how difficult it would be to make a
>> low-power receiver/decoder. I guess an embedded Linux solution is
>> possible.
>>
> Yes, that is possible.
> I have WSPR running on a pandaboard and on a raspberry pi.
>
> it does require a FPU; so non-FPU ARM systems are out of the question.

Kristoff answered a rather different question from the one that was asked.

Can the existing source code for WSPR (e.g., taken from the SVN
repository) be compiled for a system without floating-point support?

    NO.

Could a decoder for the WSPR protocol be written for a processor that
has only only fixed-point arithmetic?

    YES (but it would be a major programming job).

	 -- 73, Joe, K1JT

I was thinking about how to detect WSPR stations with > 2 sec clock error (DT)?
Here are two possible ways.

Record 4 minutes of audio, then

1.  Widen sync signal search
Search for a best fit DT and DF across the entire recording. The current sync162
imposes a narrow search. Perhaps that is not essential. (Is there any reason
candidate MEPT_JT sync signals cannot be extracted from a long record?) After
collecting the candidates, decode based on each candidate and look for valid
records.

2.  Sliding window
Use a 2-minute sliding window in 2-second steps. Apply the standard code to each
window, then look for valid records. Doing this quickly would require a
multicore implementation. There would be 120 2-second steps. If each decode
takes about 5 seconds, the complete search would take 10 minutes on a single
processor. With an 8 core CPU, 2 processes per core, decode would take about 38
seconds. (Real-time would require porting to something like a Nvidia Tesla GPU.)

Method #2 could be tested using the existing code. A recorded audio could be
chopped up and then fed to the wspr command line. (I would use Matlab, although
there may be more audio-specific programs that could do this as well.)  It will
be interesting to see how many stations are transmitting out of time spec. Using
the calculations from above, 4 hours of recordings can be processed in about 10
hours on a regular PC. You could also use the same dataset to track stations
that start out within +/- 1 sec UTC, but drift with time.


Andy WA3LTJ

Hi All,

I will be up on a mountaintop for the VHF contest this weekend. For info about
my operation see my QRZ page: www.qrz.com/db/KB5HMU

I'll be operating SSB and WSJT modes. Hope to work many of you!

Contest info: www.arrl.org/september-vhf

73,
Larry
KB5HMU

Hi all,

I am never giving up ;)

Calling CQ on 28.140 in ISCAT now.

la5vna S

-- Vy 73 de OZ1PIF/5Q2M, Peter
*****************************************
** Genius is one per cent inspiration, **
** and ninety-nine per cent **
** perspiration. **
** -- Thomas A. Edison **
*****************************************
email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
*****************************************

Capture on 28.140:

............


194830  -19   43      CQ G4DJB
194900  -20 -151
194930  -20   22
195000  -20 -151
195030  -16   43      CQ G4DJB
195100  -20 -301
195130  -14   43      CQ G4DJB
195200  -20 -323
195930  -15   43      IW4EQE RRRR G4DJB


................


LA5VNA S

Hi Group,

On Sept. 17th I will be presenting a seminar on getting started with WSJT MS to
the BITTERROOT AMATEUR RADIO CLUB in Hamilton, Mt (DN26wf). There are usually
20+ amateurs present. Some of these Hams live in rare grids like DN25 and DN35.
It would be great to have regular VHF stations operating there!

After the presentation, I will have a station setup for live demonstration
period. I am asking for many of you to saturate the calling frequency all at the
same time. Use an offset and we'll come work you. The time for live should be
about 8PM MTN (0200GMT). We will be listening on 50.260 for callers. Please use
2nd sequence as I will start calling 1st seq. I will also post on PJ as soon as
we start to CQ.

I hope you see the need for adding to our ranks. Here is your opportunity to
help if you are within about 800 miles or QRO at up to 1200 miles.

Just in case Es are occurring, I will transmit the message "QRP" if someone is
over saturating us.

Thanks to all in advance and please contact me with questions or to confirm that
you will be transmitting.

73,

Larry
KB5HMU
About Me: http://qrz.com/db/KB5HMU

Hi all,

I am calling CQ 1st now

LA5VNA S


Den 12.09.2012 00:03, skrev Peter Frenning [OZ1PIF]:
> Closing down the station for the night now - QRT....
>

Den 12-09-2012 07:53, Steinar Aanesland skrev:
> Hi all,
>
> I am calling CQ 1st now
>
> LA5VNA S
>
And I am doing the same 2nd - good luck!

And please: anybody out there copying either of us pls report!

--
Vy 73 de OZ1PIF/5Q2M, Peter

*****************************************
** Genius is one per cent inspiration, **
** and ninety-nine per cent            **
** perspiration.                       **
**               -- Thomas A. Edison   **
*****************************************
email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
*****************************************

Den 12-09-2012 07:53, Steinar Aanesland skrev:

Hi all,

I am calling CQ 1st now

LA5VNA S

And I am doing the same 2nd - good luck!

And please: anybody out there copying either of us pls report!

-- Vy 73 de OZ1PIF/5Q2M, Peter
*****************************************
** Genius is one per cent inspiration, **
** and ninety-nine per cent **
** perspiration. **
** -- Thomas A. Edison **
*****************************************
email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
*****************************************

Den 12-09-2012 08:15, Peter Frenning [OZ1PIF] skrev:

Den 12-09-2012 07:53, Steinar Aanesland skrev:

Hi all,

I am calling CQ 1st now

LA5VNA S

And I am doing the same 2nd - good luck!

And please: anybody out there copying either of us pls report!

Just had the weakest of pings, with a partial decode (not enough for positive identification)
062900    -20    22        HQ XA5E6F

-- Vy 73 de OZ1PIF/5Q2M, Peter
*****************************************
** Genius is one per cent inspiration, **
** and ninety-nine per cent **
** perspiration. **
** -- Thomas A. Edison **
*****************************************
email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
*****************************************

---

From: wsjtgroup@yahoogroups.com [mailto:wsjtgroup@yahoogroups.com] On Behalf Of eric norris
Sent: Wednesday, September 12, 2012 3:15 AM
To: wsjtgroup@yahoogroups.com
Subject: [wsjtgroup] Odd Decode Problem between WSPR and WSJT/JT65-HF

 

Dear Gang:

I am trying to get a new old computer running as my shack computer.  It is a Sony Vaio with Centrino Duo 1.6 GHz I think.  The sound card is awful.  WSJT shows it running at .9795

This computer runs WSPR without a problem, but when I run either WSJT, or especially JT65-HF, no one can decode me even with the sampling rate correction entered in--although I can decode some but not all stations I see on the WSPR screen.  When I use a Tascam 122 MkII external USB soundcard, WSJT and JT65-HF both work fine, but then no one can decode me in WSPR.  I have checked everything I can think of.  I ran WSPR for a number of hours on multiple bands with the Tascam soundcard and no one ever decoded me.  I switched to the native soundcard and in 10 minutes I saw uploaded spots.  The WSJT and JT65 situation is exactly the reverse.  Any ideas?

Thanks,

Eric WD6DBM

The antenna is in north /south direction

la5vna S

RX now , but I will be back :)

la5vna S




Den 12.09.2012 18:44, skrev Steinar Aanesland:
> The antenna is in north /south direction
>
> la5vna S
>
>

The antenna is in north /south direction

la5vna S

I am getting runtime errors on 9.0  Getting this on FSK441 and JT65.  I am
running the program from a separate folder, not from Program Files.

My PC is a Pentium 2.4 ghz, 480M ram and XP-SP3

Any ideas would be appreciated.

Tnx,  Lloyd   K8DIO

-- Vy 73 de OZ1PIF/5Q2M, Peter
*****************************************
** Genius is one per cent inspiration, **
** and ninety-nine per cent **
** perspiration. **
** -- Thomas A. Edison **
*****************************************
email: peter(no-spam filler)@frenning.dk
http://www.frenning.dk/oz1pif.htm
Ph. +45 4619 3239
Snailmail:
Peter Frenning
Ternevej 23
DK-4130 Viby Sj.
Denmark
*****************************************

I have been monitoring 28.140 for several hours, beam pointed towards
Europe. Have heard many odd signals, including MS pings of some sort but
nothing identifiable as ISCAT. Will keep looking for a while yet.

73,

Larry - W7IUV
central WA - DN07dg


On 12-Sep-12 2:08 PM, Peter Frenning [OZ1PIF] wrote:
>
>
> Nuff said, will run till 2200z

Thanks for the FSK QSOs during last weekend's ARRL VHF contest.

I had operated during the CQ contest and taken advantage of Ping Jockey as
allowed by the CQ rules.  Despite not being able to use PJ for the ARRL contest
I made more QSOs.

These QSOs have been uploaded to LOTW from K6EU/R so you will need to specify
K6EU/R to get a match.  LOTW will not match if you upload with K6EU as the call.

73,

Tom K6EU aka K6EU/R