Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Gary Hinson 
There's also a step zero, Paul, that doesn't involve digging out, dusting
off and connecting your dummy load: simply turn down your TX power output.
Unless you are VERY unfortunate, a few watts or milliwatts of RF is unlikely
to cause problems.  

 

Gradually increase your TX power until the problems occur, and you have a
strong indication that RF is the culprit.  You then have the option to stay
below the problematic level and carry on working stuff, meanwhile attempting
to fix the issue with shielding, grounding, ferrites, layout changes, better
feeders etc. until you're OK with higher power (if you need it).

 

Problems that only occur on one or some bands are another clue that RF is
probably the issue. 

 

73

Gary  ZL2iFB

 

From: Paul Randall  
Sent: 21 November 2019 10:31
To: WSJT software development 
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

 

Anyone who experiences peculiar behaviour from their station on some
band/frequency/antenna/rig upon activating the transmitter should firstly
perform this most basic test.

 

STEP 1A1A1 - Try to reproduce the problem with the transmitter directly
connected to a dummy load. This test should virtually eliminate the
possibility that simple EMI is the culprit (which it is in most cases).

 

Having suffered the problem myself, I know first hand that the above is
excellent advice.

 

Kind regards and good DX to all,

Paul G3NJV

 

 

 

  _  

From: Jim Jennings mailto:w...@comcast.net> >
Sent: 20 November 2019 16:55
To: WSJT software development mailto:wsjt-devel@lists.sourceforge.net> >
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 

 

The symptoms suggest to me RF getting into a USB cable between computer and
the rig's CI-V USB port.  My cousin had a similar situation with his
FTDX-3000 on 40 and 30M FT8, where the rig would abruptly quit transmitting
if he tried to exceed about 25 watts.  The problem was solved by winding
some of the "spare" length of the computer to CAT USB cable on a ferrite
toroid (FT240-43 used in this case).  He can now increase to full output
power of the rig (100W) without anything "flinching."  Just a thought.  73,

 

Jim, W7XZ

 

From: Christopher Diederich via wsjt-devel 

Sent: Wednesday, November 20, 2019 05:01

To: Paul Randall ; WSJT software development ;
wsjt-devel-ow...@lists.sourceforge.net
<mailto:wsjt-devel-ow...@lists.sourceforge.net>  

Cc: Christopher Diederich 

Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

 

I will run it into a dummy load to check though. Thanks for the suggestion. 

 

Chris

 

Get Outlook for iOS <https://aka.ms/o0ukef> 





On Wed, Nov 20, 2019 at 7:53 AM -0500, "Christopher Diederich"
mailto:k1...@yahoo.com> > wrote:

I have not tested with a dummy load.  Other digital modes and phone don't
have the same issue, and SWR is 2.5:1 into OCF 80 meter dipole, which is
tuned easily with my LDG. 

 

Get Outlook for iOS <https://aka.ms/o0ukef> 





On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall"
mailto:paulfrand...@hotmail.com> > wrote:

Does it do it when the rig is running into a dummy load?

 

 

 

Sent from my Samsung Galaxy smartphone.

 

 

 Original message 

From: Christopher Diederich via wsjt-devel mailto:wsjt-devel@lists.sourceforge.net> > 

Date: 20/11/2019 01:59 (GMT+00:00) 

To: wsjt-devel@lists.sourceforge.net
<mailto:wsjt-devel@lists.sourceforge.net> ,
wsjt-devel-ow...@lists.sourceforge.net
<mailto:wsjt-devel-ow...@lists.sourceforge.net>  

Cc: Christopher Diederich mailto:k1...@yahoo.com> > 

Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 

 

 

Get Outlook for iOS <https://aka.ms/o0ukef> 


  _  


From: Christopher Diederich mailto:k1...@yahoo.com> >
Sent: Tuesday, November 19, 2019 8:26 PM
To: wsjtgr...@yahoogroups.com <mailto:wsjtgr...@yahoogroups.com> 
Subject: 40 Meter Power USB-D issue 

 

Good evening,

 

I am experiencing a recent issue that has arisen where my IC-7300 is
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other
digital modes and phone work fine, and no other bands have the low power
issue.  Also, the rig occasionally changes from USB-D to USB when keying.
Any ideas?

 

IC-7300

Win 10 Pro 64 bit

HRD version 6.7.0.244

WSJT-X version 2.1.0

 

73

Chris Diederich K1LDO

 

 

  _  

  _  

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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Paul Randall 
Anyone who experiences peculiar behaviour from their station on some 
band/frequency/antenna/rig upon activating the transmitter should firstly 
perform this most basic test.

STEP 1A1A1 - Try to reproduce the problem with the transmitter directly 
connected to a dummy load. This test should virtually eliminate the possibility 
that simple EMI is the culprit (which it is in most cases).

Having suffered the problem myself, I know first hand that the above is 
excellent advice.

Kind regards and good DX to all,
Paul G3NJV




From: Jim Jennings 
Sent: 20 November 2019 16:55
To: WSJT software development 
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

The symptoms suggest to me RF getting into a USB cable between computer and the 
rig’s CI-V USB port.  My cousin had a similar situation with his FTDX-3000 on 
40 and 30M FT8, where the rig would abruptly quit transmitting if he tried to 
exceed about 25 watts.  The problem was solved by winding some of the “spare” 
length of the computer to CAT USB cable on a ferrite toroid (FT240-43 used in 
this case).  He can now increase to full output power of the rig (100W) without 
anything “flinching.”  Just a thought.  73,

Jim, W7XZ

From: Christopher Diederich via wsjt-devel
Sent: Wednesday, November 20, 2019 05:01
To: Paul Randall ; WSJT software development ; 
wsjt-devel-ow...@lists.sourceforge.net
Cc: Christopher Diederich
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

I will run it into a dummy load to check though. Thanks for the suggestion.

Chris

Get Outlook for iOS<https://aka.ms/o0ukef>



On Wed, Nov 20, 2019 at 7:53 AM -0500, "Christopher Diederich" 
 wrote:

I have not tested with a dummy load.  Other digital modes and phone don’t have 
the same issue, and SWR is 2.5:1 into OCF 80 meter dipole, which is tuned 
easily with my LDG.

Get Outlook for iOS<https://aka.ms/o0ukef>



On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall" 
 wrote:

Does it do it when the rig is running into a dummy load?



Sent from my Samsung Galaxy smartphone.


 Original message 
From: Christopher Diederich via wsjt-devel 
Date: 20/11/2019 01:59 (GMT+00:00)
To: wsjt-devel@lists.sourceforge.net, wsjt-devel-ow...@lists.sourceforge.net
Cc: Christopher Diederich 
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue


Get Outlook for iOS<https://aka.ms/o0ukef>

From: Christopher Diederich 
Sent: Tuesday, November 19, 2019 8:26 PM
To: wsjtgr...@yahoogroups.com
Subject: 40 Meter Power USB-D issue

Good evening,

I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes from USB-D to USB when keying. Any ideas?

IC-7300
Win 10 Pro 64 bit
HRD version 6.7.0.244
WSJT-X version 2.1.0

73
Chris Diederich K1LDO






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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Christopher Diederich via wsjt-devel 

  
  
  

Thanks for the assistance. I have a shielded USB cable wrapped in a 
toroid connecting the two, and have a powered USB hub to hopefully further 
isolate the computer from the radio. This was in response to the rig/pc 
connection dropping previously. 
I’ll double check the setup and connections. 



‘73de K1LDOChris Diederich

  




On Wed, Nov 20, 2019 at 12:01 PM -0500, "Jim Jennings"  wrote:














The symptoms suggest to me RF getting into a USB cable between computer and 
the rig’s CI-V USB port.  My cousin had a similar situation with his 
FTDX-3000 on 40 and 30M FT8, where the rig would abruptly quit transmitting if 
he tried to exceed about 25 watts.  The problem was solved by winding some 
of the “spare” length of the computer to CAT USB cable on a ferrite toroid 
(FT240-43 used in this case).  He can now increase to full output power of 
the rig (100W) without anything “flinching.”  Just a thought.  
73,
 
Jim, W7XZ


 

From: Christopher Diederich via wsjt-devel 

Sent: Wednesday, November 20, 2019 05:01
To: Paul Randall ; WSJT software development ; 
wsjt-devel-ow...@lists.sourceforge.net 

Cc: Christopher Diederich 
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D 
issue
 



I will run it into a dummy load to check though. 
Thanks for the suggestion. 
 
Chris
 
Get Outlook 
for iOS



On Wed, Nov 20, 2019 at 7:53 AM -0500, "Christopher 
Diederich"  
wrote:



  
  
  
  I have not tested with a dummy load.  Other 
  digital modes and phone don’t have the same issue, and SWR is 2.5:1 into OCF 
  80 meter dipole, which is tuned easily with my LDG. 
   
  Get Outlook for iOS



  On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall" 
   
  wrote:


  


Does it do it when the rig is running into a dummy load?
 
 
 

Sent from my Samsung Galaxy 
smartphone.
 
 
 Original message 
From: Christopher Diederich via wsjt-devel 
 
Date: 20/11/2019 01:59 (GMT+00:00) 
To: wsjt-devel@lists.sourceforge.net, 
wsjt-devel-ow...@lists.sourceforge.net 
Cc: Christopher Diederich  
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 
 







 
Get Outlook for iOS



From: 
Christopher Diederich 
Sent: Tuesday, 
November 19, 2019 8:26 PM
To: 
wsjtgr...@yahoogroups.com
Subject: 40 Meter Power USB-D issue 
 








Good evening,
 
I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  
Other digital modes and phone work fine, and no other bands have the low 
power issue.  Also, the rig occasionally changes from USB-D to USB when 
keying. Any ideas?
 
IC-7300
Win 10 Pro 64 bit
HRD version 6.7.0.244
WSJT-X version 2.1.0
 
73
Chris Diederich K1LDO
 
 









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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Jim Jennings 
The symptoms suggest to me RF getting into a USB cable between computer and the 
rig’s CI-V USB port.  My cousin had a similar situation with his FTDX-3000 on 
40 and 30M FT8, where the rig would abruptly quit transmitting if he tried to 
exceed about 25 watts.  The problem was solved by winding some of the “spare” 
length of the computer to CAT USB cable on a ferrite toroid (FT240-43 used in 
this case).  He can now increase to full output power of the rig (100W) without 
anything “flinching.”  Just a thought.  73,

Jim, W7XZ

From: Christopher Diederich via wsjt-devel 
Sent: Wednesday, November 20, 2019 05:01
To: Paul Randall ; WSJT software development ; 
wsjt-devel-ow...@lists.sourceforge.net 
Cc: Christopher Diederich 
Subject: Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

I will run it into a dummy load to check though. Thanks for the suggestion. 

Chris

Get Outlook for iOS




On Wed, Nov 20, 2019 at 7:53 AM -0500, "Christopher Diederich" 
 wrote:


  I have not tested with a dummy load.  Other digital modes and phone don’t 
have the same issue, and SWR is 2.5:1 into OCF 80 meter dipole, which is tuned 
easily with my LDG. 

  Get Outlook for iOS




  On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall" 
 wrote:


Does it do it when the rig is running into a dummy load?



Sent from my Samsung Galaxy smartphone.


 Original message 
From: Christopher Diederich via wsjt-devel 
 
Date: 20/11/2019 01:59 (GMT+00:00) 
To: wsjt-devel@lists.sourceforge.net, 
wsjt-devel-ow...@lists.sourceforge.net 
Cc: Christopher Diederich  
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 


Get Outlook for iOS



From: Christopher Diederich 
Sent: Tuesday, November 19, 2019 8:26 PM
To: wsjtgr...@yahoogroups.com
Subject: 40 Meter Power USB-D issue 

Good evening,

I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes from USB-D to USB when keying. Any ideas?

IC-7300
Win 10 Pro 64 bit
HRD version 6.7.0.244
WSJT-X version 2.1.0

73
Chris Diederich K1LDO









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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Christopher Diederich via wsjt-devel 

  
  
  

I will run it into a dummy load to check though. Thanks for the 
suggestion. 
Chris



Get Outlook for iOS

  




On Wed, Nov 20, 2019 at 7:53 AM -0500, "Christopher Diederich" 
 wrote:











  
  
  

I have not tested with a dummy load.  Other digital modes and phone 
don’t have the same issue, and SWR is 2.5:1 into OCF 80 meter dipole, which is 
tuned easily with my LDG. 



Get Outlook for iOS

  




On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall" 
 wrote:
















Does it do it when the rig is running into a dummy load?










Sent from my Samsung Galaxy smartphone.







 Original message 
From: Christopher Diederich via wsjt-devel 

Date: 20/11/2019 01:59 (GMT+00:00) 
To: wsjt-devel@lists.sourceforge.net, wsjt-devel-ow...@lists.sourceforge.net

Cc: Christopher Diederich  
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 














Get 
Outlook for iOS



From: Christopher Diederich 

Sent: Tuesday, November 19, 2019 8:26 PM

To: wsjtgr...@yahoogroups.com

Subject: 40 Meter Power USB-D issue
 










Good evening,





I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes
 from USB-D to USB when keying. Any ideas?





IC-7300

Win 10 Pro 64 bit

HRD version 6.7.0.244

WSJT-X version 2.1.0





73

Chris Diederich K1LDO






























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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Christopher Diederich via wsjt-devel 

  
  
  

Hi Kevin,
I’ll check it with a dummy load. Figured since PSK31 (7.070)is so close to the 
FT8 freq (7.074) and the power output is fine using PSK31 the antenna was fine. 
Doesn’t hurt to rule the antenna out. Thanks. 
Chris 



Get Outlook for iOS

  




On Tue, Nov 19, 2019 at 9:59 PM -0500, "Kevin McQuiggin"  
wrote:










Hi Chris:
Possibly a suggestion that you have already checked, but how does the power 
look into a dummy load?  Perhaps the power reduction on 40m is due to a new 
mismatch.  It may be a hardware issue rather than a WSJT-X issue!
73,
Kevin 

On Nov 19, 2019, at 5:55 PM, Christopher Diederich via wsjt-devel 
 wrote:




Get Outlook for iOS  From: Christopher Diederich 
Sent: Tuesday, November 19, 2019 8:26 PM
To: wsjtgr...@yahoogroups.com
Subject: 40 Meter Power USB-D issue Good evening,
I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes from USB-D to USB when keying. Any ideas?
IC-7300Win 10 Pro 64 bitHRD version 6.7.0.244WSJT-X version 2.1.0
73Chris Diederich K1LDO

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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Christopher Diederich via wsjt-devel 

  
  
  

I have not tested with a dummy load.  Other digital modes and phone 
don’t have the same issue, and SWR is 2.5:1 into OCF 80 meter dipole, which is 
tuned easily with my LDG. 



Get Outlook for iOS

  




On Wed, Nov 20, 2019 at 5:12 AM -0500, "Paul Randall" 
 wrote:
















Does it do it when the rig is running into a dummy load?










Sent from my Samsung Galaxy smartphone.







 Original message 
From: Christopher Diederich via wsjt-devel 

Date: 20/11/2019 01:59 (GMT+00:00) 
To: wsjt-devel@lists.sourceforge.net, wsjt-devel-ow...@lists.sourceforge.net

Cc: Christopher Diederich  
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue 














Get 
Outlook for iOS



From: Christopher Diederich 

Sent: Tuesday, November 19, 2019 8:26 PM

To: wsjtgr...@yahoogroups.com

Subject: 40 Meter Power USB-D issue
 










Good evening,





I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes
 from USB-D to USB when keying. Any ideas?





IC-7300

Win 10 Pro 64 bit

HRD version 6.7.0.244

WSJT-X version 2.1.0





73

Chris Diederich K1LDO

























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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-20 Thread Paul Randall 
Does it do it when the rig is running into a dummy load?



Sent from my Samsung Galaxy smartphone.


 Original message 
From: Christopher Diederich via wsjt-devel 
Date: 20/11/2019 01:59 (GMT+00:00)
To: wsjt-devel@lists.sourceforge.net, wsjt-devel-ow...@lists.sourceforge.net
Cc: Christopher Diederich 
Subject: [wsjt-devel] Fwd: 40 Meter Power USB-D issue


Get Outlook for iOS

From: Christopher Diederich 
Sent: Tuesday, November 19, 2019 8:26 PM
To: wsjtgr...@yahoogroups.com
Subject: 40 Meter Power USB-D issue

Good evening,

I am experiencing a recent issue that has arisen where my IC-7300 is 
transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
digital modes and phone work fine, and no other bands have the low power issue. 
 Also, the rig occasionally changes from USB-D to USB when keying. Any ideas?

IC-7300
Win 10 Pro 64 bit
HRD version 6.7.0.244
WSJT-X version 2.1.0

73
Chris Diederich K1LDO


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Re: [wsjt-devel] Fwd: 40 Meter Power USB-D issue

2019-11-19 Thread Kevin McQuiggin 
Hi Chris:

Possibly a suggestion that you have already checked, but how does the power 
look into a dummy load?  Perhaps the power reduction on 40m is due to a new 
mismatch.  It may be a hardware issue rather than a WSJT-X issue!

73,

Kevin


> On Nov 19, 2019, at 5:55 PM, Christopher Diederich via wsjt-devel 
>  wrote:
> 
> 
> Get Outlook for iOS 
> From: Christopher Diederich 
> Sent: Tuesday, November 19, 2019 8:26 PM
> To: wsjtgr...@yahoogroups.com
> Subject: 40 Meter Power USB-D issue
> 
> Good evening,
> 
> I am experiencing a recent issue that has arisen where my IC-7300 is 
> transmitting on reduced power on 40 meters using FT8 with WSJT-X.  Other 
> digital modes and phone work fine, and no other bands have the low power 
> issue.  Also, the rig occasionally changes from USB-D to USB when keying. Any 
> ideas?
> 
> IC-7300
> Win 10 Pro 64 bit
> HRD version 6.7.0.244
> WSJT-X version 2.1.0
> 
> 73
> Chris Diederich K1LDO
> 
> 
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