Re: [Flexradio] Fw: SDR1000 and WSJT
Hi Ross,
I am not able to make a duplicate of your system at present here,
but try to pinpoint the problem area.
Recap
- QRP1k with PowerSDR (and 2 meter convertor) works OK
>> or (I realise now) that you are using the K6JCA console?
>> tried it with PwrSDR?
- same QRP1k connected to WSJT trough VAC goes haywire
>> I am a bit confused on the signal strength reading (on K6JCA or WSJT or
>> other??)
>> Try PowerSDR and WSJT, what does the Smeter of PwrSDR do?
>> As it looks now something could be wrong in the VAC and/or Audio mixer
I have no experiance with VAC
>> Can you try another program connectet trough VAC with the same settings??
>> Try to swap computers, the QRP1k and 100W1k.
Someone with other ideas?
73 peter
groeten Peter websitewww.pa0pvn.tk <http://www.pa0pvn.tk/>
petervn-at-hetnet-nl pa0pvn-at-hetnet-nl pa0pvn-at-amsat-org
only large files:pa0pvn-at-gmail-com
There are 10 kind of people, those who can count to 1010 on their fingers,
and those who count to 11.
Van: Ross [mailto:[EMAIL PROTECTED]
Verzonden: ma 14-1-2008 20:52
Aan: [EMAIL PROTECTED]
CC: FlexRadio@flex-radio.biz
Onderwerp: Re: [Flexradio] Fw: SDR1000 and WSJT
Hi Peter,
Thanks for your questions. My answers are below.
Connection to WSJT:VAC1 input VAC 2 output .
Software versions,:currently using the latest K6JCA, but I have tried
all versions down to 1.8.0
Receiving or transmitting, I am not sure what you mean, but I want to fix the
rx problem first, I haven't checked
the tx side fully to see if there is a
problem, but from various short checks, I dont think the problem is on tx.
Signal strength: preamp on low, SDR reading within -78 to -80db,
fluctuating as the 2m signal varies slightly. The WSJT
The WSJT was adjusted to give a good waterfall at
8db, which iswithin the allowable parameters for WSJT of 1 to 10db
but within a minute or so the strength indicated on
WSJT (using SpecJT) varied from -20db to -4db, and of course
the waterfall was unusable.
testing on same computer: No I haven't done that yet, but it is certainly the
one item to try. I will put the QRP SDR onto the Vista machine, but
I will have to set up a new SDR
software for the QRP machine. And swap all the cables of course.
QRP normal without WSJT: Yes it seems to work perfectly, and is very happy
running for hours monitoring a 2m beacon.
Any further questions are very welcome.
I purchased the QRP SDR1000 just to drive my EME setup,as it is ideal for
driving the DB6NT transverters, on 2m or 70cm,. The transverters
require only a very low level input a few milliwatts to give 30watts output,
and it is possible to overdrive the input, resulting in a package back to
Germany for repair, you can guess I have done that already.
Best wishes
Ross
ZL1WN
- Original Message -
From: [EMAIL PROTECTED]
To: Ross <mailto:[EMAIL PROTECTED]> ; FlexRadio@flex-radio.biz
Sent: Tuesday, January 15, 2008 12:48 AM
Subject: RE: [Flexradio] Fw: SDR1000 and WSJT
Hi Ross,
Tried to get a mental picture of your system,
some (stupid??) questions
- How is WSJT connected to PowerSDR? (cable to another PC or VAC or ...)
- Versions of software
- Only receiving or transmitting in between
- The signal stenth is read from PowerSDR?
- QRP1k and 100W1k have been teste on same computer and PowerSDR
version?
- The QRP1k behaves without WSJT "normal" ?? (with the transvertor ??)
- On first sight it looks like a harware problem in the QRP SDR1kto me
Flexers: other ideas?
73 peter pa0pvn
groeten Peter websitewww.pa0pvn.tk <http://www.pa0pvn.tk/>
petervn-at-hetnet-nl pa0pvn-at-hetnet-nl pa0pvn-at-amsat-org
only large files:pa0pvn-at-gmail-com
There are 10 kind of people, those who can count to 1010 on their
fingers,
and those who count to 11.
Van: [EMAIL PROTECTED] namens Ross
Verzonden: ma 14-1-2008 3:11
Aan: FlexRadio@flex-radio.biz
Onderwerp: [Flexradio] Fw: SDR1000 and WSJT
I have 2 SDR1000's a 100watt model and the QRP version.
I would like to be able to use WSJT with the QRP version, but here is
the problem.
On the QRP version,WSJT starts ok with the received signal strength
steady at a setting of say 5db. But after a short while the signal strength
starts to vary widely from approx -20db to the correct setting
of say 5
Re: [Flexradio] Fw: SDR1000 and WSJT
[Flexradio] Fw: SDR1000 and WSJTHi Peter, Thanks for your questions. My answers are below. Connection to WSJT:VAC1 input VAC 2 output . Software versions,:currently using the latest K6JCA, but I have tried all versions down to 1.8.0 Receiving or transmitting, I am not sure what you mean, but I want to fix the rx problem first, I haven't checked the tx side fully to see if there is a problem, but from various short checks, I dont think the problem is on tx. Signal strength: preamp on low, SDR reading within -78 to -80db, fluctuating as the 2m signal varies slightly. The WSJT The WSJT was adjusted to give a good waterfall at 8db, which iswithin the allowable parameters for WSJT of 1 to 10db but within a minute or so the strength indicated on WSJT (using SpecJT) varied from -20db to -4db, and of course the waterfall was unusable. testing on same computer: No I haven't done that yet, but it is certainly the one item to try. I will put the QRP SDR onto the Vista machine, but I will have to set up a new SDR software for the QRP machine. And swap all the cables of course. QRP normal without WSJT: Yes it seems to work perfectly, and is very happy running for hours monitoring a 2m beacon. Any further questions are very welcome. I purchased the QRP SDR1000 just to drive my EME setup,as it is ideal for driving the DB6NT transverters, on 2m or 70cm,. The transverters require only a very low level input a few milliwatts to give 30watts output, and it is possible to overdrive the input, resulting in a package back to Germany for repair, you can guess I have done that already. Best wishes Ross ZL1WN - Original Message - From: [EMAIL PROTECTED] To: Ross ; FlexRadio@flex-radio.biz Sent: Tuesday, January 15, 2008 12:48 AM Subject: RE: [Flexradio] Fw: SDR1000 and WSJT Hi Ross, Tried to get a mental picture of your system, some (stupid??) questions - How is WSJT connected to PowerSDR? (cable to another PC or VAC or ...) - Versions of software - Only receiving or transmitting in between - The signal stenth is read from PowerSDR? - QRP1k and 100W1k have been teste on same computer and PowerSDR version? - The QRP1k behaves without WSJT "normal" ?? (with the transvertor ??) - On first sight it looks like a harware problem in the QRP SDR1kto me Flexers: other ideas? 73 peter pa0pvn groeten Peter websitewww.pa0pvn.tk petervn-at-hetnet-nl pa0pvn-at-hetnet-nl pa0pvn-at-amsat-org only large files:pa0pvn-at-gmail-com There are 10 kind of people, those who can count to 1010 on their fingers, and those who count to 11. -- Van: [EMAIL PROTECTED] namens Ross Verzonden: ma 14-1-2008 3:11 Aan: FlexRadio@flex-radio.biz Onderwerp: [Flexradio] Fw: SDR1000 and WSJT I have 2 SDR1000's a 100watt model and the QRP version. I would like to be able to use WSJT with the QRP version, but here is the problem. On the QRP version,WSJT starts ok with the received signal strength steady at a setting of say 5db. But after a short while the signal strength starts to vary widely from approx -20db to the correct setting of say 5db. This wide fluctuation of couse totally ruins any chance of picking up a signal. The QRP version is on 28mhz being fed from a DB6NT transverter 28-144. It is running on a machine using Windowas XP and a M-Audio delta 44 sound card. But I have had the same problem with the Presonus Firebox card. Note if I swap the DB6NT to my Orion II input and run WSJT , I get a perfect signal without the wide signal strength swings, using the same computer and DB6NT transverter. On another computer, my 100watt SDR1000, runs WSJT perfectly with no signal fluctuation, using an Edirol FA66, with Vista Business. On this basis it would appear to be a problem with the QRP version, but what sort of problem and how do I fix it? This is not a new problem with the QRP SDR1000, I had it last year with the same results and had to use my Orion II for 2m EME. Ideas please Ross Zl1WN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ __ NOD32 2789 (20080114) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailma
Re: [Flexradio] Fw: SDR1000 and WSJT
Hi Ross, Tried to get a mental picture of your system, some (stupid??) questions - How is WSJT connected to PowerSDR? (cable to another PC or VAC or ...) - Versions of software - Only receiving or transmitting in between - The signal stenth is read from PowerSDR? - QRP1k and 100W1k have been teste on same computer and PowerSDR version? - The QRP1k behaves without WSJT "normal" ?? (with the transvertor ??) - On first sight it looks like a harware problem in the QRP SDR1kto me Flexers: other ideas? 73 peter pa0pvn groeten Peter websitewww.pa0pvn.tk <http://www.pa0pvn.tk/> petervn-at-hetnet-nl pa0pvn-at-hetnet-nl pa0pvn-at-amsat-org only large files:pa0pvn-at-gmail-com There are 10 kind of people, those who can count to 1010 on their fingers, and those who count to 11. Van: [EMAIL PROTECTED] namens Ross Verzonden: ma 14-1-2008 3:11 Aan: FlexRadio@flex-radio.biz Onderwerp: [Flexradio] Fw: SDR1000 and WSJT I have 2 SDR1000's a 100watt model and the QRP version. I would like to be able to use WSJT with the QRP version, but here is the problem. On the QRP version,WSJT starts ok with the received signal strength steady at a setting of say 5db. But after a short while the signal strength starts to vary widely from approx -20db to the correct setting of say 5db. This wide fluctuation of couse totally ruins any chance of picking up a signal. The QRP version is on 28mhz being fed from a DB6NT transverter 28-144. It is running on a machine using Windowas XP and a M-Audio delta 44 sound card. But I have had the same problem with the Presonus Firebox card. Note if I swap the DB6NT to my Orion II input and run WSJT , I get a perfect signal without the wide signal strength swings, using the same computer and DB6NT transverter. On another computer, my 100watt SDR1000, runs WSJT perfectly with no signal fluctuation, using an Edirol FA66, with Vista Business. On this basis it would appear to be a problem with the QRP version, but what sort of problem and how do I fix it? This is not a new problem with the QRP SDR1000, I had it last year with the same results and had to use my Orion II for 2m EME. Ideas please Ross Zl1WN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Fw: SDR1000 and WSJT
Just one idea - interconnection between boards QRP SDR. Thanks vy 73! Serge, RV3APM ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Fw: SDR1000 and WSJT
I have 2 SDR1000's a 100watt model and the QRP version. I would like to be able to use WSJT with the QRP version, but here is the problem. On the QRP version,WSJT starts ok with the received signal strength steady at a setting of say 5db. But after a short while the signal strength starts to vary widely from approx -20db to the correct setting of say 5db. This wide fluctuation of couse totally ruins any chance of picking up a signal. The QRP version is on 28mhz being fed from a DB6NT transverter 28-144. It is running on a machine using Windowas XP and a M-Audio delta 44 sound card. But I have had the same problem with the Presonus Firebox card. Note if I swap the DB6NT to my Orion II input and run WSJT , I get a perfect signal without the wide signal strength swings, using the same computer and DB6NT transverter. On another computer, my 100watt SDR1000, runs WSJT perfectly with no signal fluctuation, using an Edirol FA66, with Vista Business. On this basis it would appear to be a problem with the QRP version, but what sort of problem and how do I fix it? This is not a new problem with the QRP SDR1000, I had it last year with the same results and had to use my Orion II for 2m EME. Ideas please Ross Zl1WN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
