Date   

Re: Proper way to show DX stations in New England QSO Party.

Christopher Scibelli
 

Sorry!  Wrong group.

NU1O


-----Original Message-----
From: Christopher Scibelli via groups.io <nu1oscar@...>
To: Elecraft-K3 <Elecraft-K3@groups.io>
Sent: Wed, May 6, 2020 3:53 pm
Subject: [Elecraft-K3] Proper way to show DX stations in New England QSO Party.

Perhaps somebody who is in New England and participated in the NEQP can help me out.

In the NEQP stations outside of the USA and Canada give their location as "DX", but the program doesn't accept DX as the location.  The program defaults to the actual country connected to the callsign.  For example, F6BEE is logged as France.  That ensures the multiplier count is accurate because each country counts as a multiplier. However, when I look at the Cabrillo file those DX contacts no longer have the individual country but "DX" as the QTH. F6BEE is not listed as France in the Cabrillo file but "DX".  All countries outside of the USA and Canada show as "DX" in the Cabrillo file.  My score is correct but I want to make sure the Cabrillo file is correct. 

I've been using N3FJP's program for the NEQP since 2012 or 2013 and I guess I just submitted the Cabrillo file without reviewing it. 

Any help would be appreciated.

73,

Chris  NU1O



-----Original Message-----
From: Rick Bates, NK7I <Rick.NK7I@...>
To: Elecraft-K3 <Elecraft-K3@groups.io>
Sent: Wed, May 6, 2020 1:28 pm
Subject: Re: [Elecraft-K3] Factory service still available?

Bob,

You must remember that lists like this rarely sing the praises of any
piece of soft/hardware.  The emails on such lists are HEAVILY biased
towards problems, complaints and whining.

My Elecraft gear is on 24/7/265 (walk in and work, or to remote into)
and has been near flawless, so not much reason to speak up (unless
answering someone).  The software I use to manage it, similar.

My SteppIR DB36/80 works at about 90% (still random issues on 40M). 
Together, I'm quite pleased with the station (still in progress).

Would that the sunspots take the hint, we'd all be too busy to complain.

73,
Rick NK7I


On 5/6/2020 9:38 AM, Bob McGraw - K4TAX wrote:
> In reading the various sites, reflectors, and discussion groups, I am
> constantly amazed at the issues hams seemingly are having with their
> equipment.   I sit here every day in front of my K3S, P3, KPA500, and
> KAT500 along with various software applications. These applications
> run on a laptop that was originally released with Windows Vista.  
> Today it is running Windows 10 Pro.   I have no issues or problems
> running Windows 10 Pro.    My antennas are basic wire antennas, center
> fed, with either coax and a 1:1 current balun at the feed point, or
> center fed with 450 ohm window line that runs from the feed point to
> the operating position. There is nothing challenging or difficult or
> complex about my station.  It is items which I purchased assembled
> from Elecraft or in the case of antennas, those I assembled and
> erected myself.
>
> My point, my system works as designed, and as expected, and does
> everything I want it to do, and that's 100% of the time.  Why then do
> others have the issues?  It isn't the equipment.   Perhaps they need
> to look in the mirror to observe the real source of the problem. 
> Windows 10 Pro is a different animal, it is more challenging, it
> requires a deeper understand.   The issues are not Windows 10 Pro
> related.    In general today I find that hams, many have obtained
> their license from the Extra Class prize out of a box of Cracker Jacks
> are the ones having the problems.  I know this statement will step on
> toes and offend some people.   However I find, in general, there is
> lack of knowledge and understanding.
>
> As a member of a local radio club, I was asked to assist with teaching
> new prospective hams in preparation for their license exam.  I
> inquired as to what I would be teaching?   The answer came back  "the
> test"!    HUH!!   Why not just sign the papers and give them an Extra
> Class license.   Needless to say I declined the offer to teach.
>
> For me, I started as a Novice Class operator, not an Extra Class as
> many have done today.  I kept and operated my Novice station for
> almost a year before becoming a General Class operator. Finally moving
> up to Advanced and then Extra Class license. Personally today, I think
> the VEC program is a horrible failure and done a grave injustice to
> the ham radio society.
>
> I'm glad I'm 77 years young, I have had my ham license since 1959 thus
> 61 years.  I'm also glad, the way things are going, I won't be around
> many more years to endure the mess.  This is just one step in the
> dumbing down of society in general.
>
> From experience, the Elecraft Factory service is among the best in the
> world.  They, like others, are taking precautions necessary to protect
> the staff.  Smart decision.
>
> 73
>
> Bob, K4TAX
>
>
>
>




Proper way to show DX stations in New England QSO Party.

Christopher Scibelli
 

Perhaps somebody who is in New England and participated in the NEQP can help me out.

In the NEQP stations outside of the USA and Canada give their location as "DX", but the program doesn't accept DX as the location.  The program defaults to the actual country connected to the callsign.  For example, F6BEE is logged as France.  That ensures the multiplier count is accurate because each country counts as a multiplier. However, when I look at the Cabrillo file those DX contacts no longer have the individual country but "DX" as the QTH. F6BEE is not listed as France in the Cabrillo file but "DX".  All countries outside of the USA and Canada show as "DX" in the Cabrillo file.  My score is correct but I want to make sure the Cabrillo file is correct. 

I've been using N3FJP's program for the NEQP since 2012 or 2013 and I guess I just submitted the Cabrillo file without reviewing it. 

Any help would be appreciated.

73,

Chris  NU1O



-----Original Message-----
From: Rick Bates, NK7I <Rick.NK7I@...>
To: Elecraft-K3 <Elecraft-K3@groups.io>
Sent: Wed, May 6, 2020 1:28 pm
Subject: Re: [Elecraft-K3] Factory service still available?

Bob,

You must remember that lists like this rarely sing the praises of any
piece of soft/hardware.  The emails on such lists are HEAVILY biased
towards problems, complaints and whining.

My Elecraft gear is on 24/7/265 (walk in and work, or to remote into)
and has been near flawless, so not much reason to speak up (unless
answering someone).  The software I use to manage it, similar.

My SteppIR DB36/80 works at about 90% (still random issues on 40M). 
Together, I'm quite pleased with the station (still in progress).

Would that the sunspots take the hint, we'd all be too busy to complain.

73,
Rick NK7I


On 5/6/2020 9:38 AM, Bob McGraw - K4TAX wrote:
> In reading the various sites, reflectors, and discussion groups, I am
> constantly amazed at the issues hams seemingly are having with their
> equipment.   I sit here every day in front of my K3S, P3, KPA500, and
> KAT500 along with various software applications. These applications
> run on a laptop that was originally released with Windows Vista.  
> Today it is running Windows 10 Pro.   I have no issues or problems
> running Windows 10 Pro.    My antennas are basic wire antennas, center
> fed, with either coax and a 1:1 current balun at the feed point, or
> center fed with 450 ohm window line that runs from the feed point to
> the operating position. There is nothing challenging or difficult or
> complex about my station.  It is items which I purchased assembled
> from Elecraft or in the case of antennas, those I assembled and
> erected myself.
>
> My point, my system works as designed, and as expected, and does
> everything I want it to do, and that's 100% of the time.  Why then do
> others have the issues?  It isn't the equipment.   Perhaps they need
> to look in the mirror to observe the real source of the problem. 
> Windows 10 Pro is a different animal, it is more challenging, it
> requires a deeper understand.   The issues are not Windows 10 Pro
> related.    In general today I find that hams, many have obtained
> their license from the Extra Class prize out of a box of Cracker Jacks
> are the ones having the problems.  I know this statement will step on
> toes and offend some people.   However I find, in general, there is
> lack of knowledge and understanding.
>
> As a member of a local radio club, I was asked to assist with teaching
> new prospective hams in preparation for their license exam.  I
> inquired as to what I would be teaching?   The answer came back  "the
> test"!    HUH!!   Why not just sign the papers and give them an Extra
> Class license.   Needless to say I declined the offer to teach.
>
> For me, I started as a Novice Class operator, not an Extra Class as
> many have done today.  I kept and operated my Novice station for
> almost a year before becoming a General Class operator. Finally moving
> up to Advanced and then Extra Class license. Personally today, I think
> the VEC program is a horrible failure and done a grave injustice to
> the ham radio society.
>
> I'm glad I'm 77 years young, I have had my ham license since 1959 thus
> 61 years.  I'm also glad, the way things are going, I won't be around
> many more years to endure the mess.  This is just one step in the
> dumbing down of society in general.
>
> From experience, the Elecraft Factory service is among the best in the
> world.  They, like others, are taking precautions necessary to protect
> the staff.  Smart decision.
>
> 73
>
> Bob, K4TAX
>
>
>
>




Re: Factory service still available?

Rick NK7I
 

Bob,

You must remember that lists like this rarely sing the praises of any piece of soft/hardware.  The emails on such lists are HEAVILY biased towards problems, complaints and whining.

My Elecraft gear is on 24/7/265 (walk in and work, or to remote into) and has been near flawless, so not much reason to speak up (unless answering someone).  The software I use to manage it, similar.

My SteppIR DB36/80 works at about 90% (still random issues on 40M).  Together, I'm quite pleased with the station (still in progress).

Would that the sunspots take the hint, we'd all be too busy to complain.

73,
Rick NK7I

On 5/6/2020 9:38 AM, Bob McGraw - K4TAX wrote:
In reading the various sites, reflectors, and discussion groups, I am constantly amazed at the issues hams seemingly are having with their equipment.   I sit here every day in front of my K3S, P3, KPA500, and KAT500 along with various software applications. These applications run on a laptop that was originally released with Windows Vista.   Today it is running Windows 10 Pro.   I have no issues or problems running Windows 10 Pro.    My antennas are basic wire antennas, center fed, with either coax and a 1:1 current balun at the feed point, or center fed with 450 ohm window line that runs from the feed point to the operating position. There is nothing challenging or difficult or complex about my station.  It is items which I purchased assembled from Elecraft or in the case of antennas, those I assembled and erected myself.

My point, my system works as designed, and as expected, and does everything I want it to do, and that's 100% of the time.  Why then do others have the issues?  It isn't the equipment.   Perhaps they need to look in the mirror to observe the real source of the problem.  Windows 10 Pro is a different animal, it is more challenging, it requires a deeper understand.   The issues are not Windows 10 Pro related.    In general today I find that hams, many have obtained their license from the Extra Class prize out of a box of Cracker Jacks are the ones having the problems.  I know this statement will step on toes and offend some people.   However I find, in general, there is lack of knowledge and understanding.

As a member of a local radio club, I was asked to assist with teaching new prospective hams in preparation for their license exam.  I inquired as to what I would be teaching?   The answer came back  "the test"!    HUH!!   Why not just sign the papers and give them an Extra Class license.   Needless to say I declined the offer to teach.

For me, I started as a Novice Class operator, not an Extra Class as many have done today.  I kept and operated my Novice station for almost a year before becoming a General Class operator. Finally moving up to Advanced and then Extra Class license. Personally today, I think the VEC program is a horrible failure and done a grave injustice to the ham radio society.

I'm glad I'm 77 years young, I have had my ham license since 1959 thus 61 years.  I'm also glad, the way things are going, I won't be around many more years to endure the mess.  This is just one step in the dumbing down of society in general.

From experience, the Elecraft Factory service is among the best in the world.  They, like others, are taking precautions necessary to protect the staff.  Smart decision.

73

Bob, K4TAX



Re: Factory service still available?

Michael Kopec
 

Well said, on all, Bob. And Yes, Elecraft provides the best factory service I have experienced in Ham Radio or any other unrelated product that I have purchased. They are one of the few. if not the only, manufacture that helps and encourages you to repair or build their equipment. Hey, stick around a bunch more years, sit back, chuckle, even laugh at times at this current state of Ham Radio. 73 de Mike K8NS.

On Wednesday, May 6, 2020, 12:42:40 PM EDT, Bob McGraw - K4TAX <rmcgraw@...> wrote:


In reading the various sites, reflectors, and discussion groups, I am
constantly amazed at the issues hams seemingly are having with their
equipment.   I sit here every day in front of my K3S, P3, KPA500, and
KAT500 along with various software applications. These applications run
on a laptop that was originally released with Windows Vista.   Today it
is running Windows 10 Pro.   I have no issues or problems running
Windows 10 Pro.    My antennas are basic wire antennas, center fed, with
either coax and a 1:1 current balun at the feed point, or center fed
with 450 ohm window line that runs from the feed point to the operating
position. There is nothing challenging or difficult or complex about my
station.  It is items which I purchased assembled from Elecraft or in
the case of antennas, those I assembled and erected myself.

My point, my system works as designed, and as expected, and does
everything I want it to do, and that's 100% of the time.  Why then do
others have the issues?  It isn't the equipment.   Perhaps they need to
look in the mirror to observe the real source of the problem.  Windows
10 Pro is a different animal, it is more challenging, it requires a
deeper understand.   The issues are not Windows 10 Pro related.    In
general today I find that hams, many have obtained their license from
the Extra Class prize out of a box of Cracker Jacks are the ones having
the problems.  I know this statement will step on toes and offend some
people.   However I find, in general, there is lack of knowledge and
understanding.

As a member of a local radio club, I was asked to assist with teaching
new prospective hams in preparation for their license exam.  I inquired
as to what I would be teaching?   The answer came back  "the test"!   
HUH!!   Why not just sign the papers and give them an Extra Class
license.   Needless to say I declined the offer to teach.

For me, I started as a Novice Class operator, not an Extra Class as many
have done today.  I kept and operated my Novice station for almost a
year before becoming a General Class operator. Finally moving up to
Advanced and then Extra Class license. Personally today, I think the VEC
program is a horrible failure and done a grave injustice to the ham
radio society.

I'm glad I'm 77 years young, I have had my ham license since 1959 thus
61 years.  I'm also glad, the way things are going, I won't be around
many more years to endure the mess.  This is just one step in the
dumbing down of society in general.

From experience, the Elecraft Factory service is among the best in the
world.  They, like others, are taking precautions necessary to protect
the staff.  Smart decision.

73

Bob, K4TAX





Re: Factory service still available?

Bob McGraw - K4TAX
 

In reading the various sites, reflectors, and discussion groups, I am constantly amazed at the issues hams seemingly are having with their equipment.   I sit here every day in front of my K3S, P3, KPA500, and KAT500 along with various software applications. These applications run on a laptop that was originally released with Windows Vista.   Today it is running Windows 10 Pro.   I have no issues or problems running Windows 10 Pro.    My antennas are basic wire antennas, center fed, with either coax and a 1:1 current balun at the feed point, or center fed with 450 ohm window line that runs from the feed point to the operating position. There is nothing challenging or difficult or complex about my station.  It is items which I purchased assembled from Elecraft or in the case of antennas, those I assembled and erected myself.

My point, my system works as designed, and as expected, and does everything I want it to do, and that's 100% of the time.  Why then do others have the issues?  It isn't the equipment.   Perhaps they need to look in the mirror to observe the real source of the problem.  Windows 10 Pro is a different animal, it is more challenging, it requires a deeper understand.   The issues are not Windows 10 Pro related.    In general today I find that hams, many have obtained their license from the Extra Class prize out of a box of Cracker Jacks are the ones having the problems.  I know this statement will step on toes and offend some people.   However I find, in general, there is lack of knowledge and understanding.

As a member of a local radio club, I was asked to assist with teaching new prospective hams in preparation for their license exam.  I inquired as to what I would be teaching?   The answer came back  "the test"!    HUH!!   Why not just sign the papers and give them an Extra Class license.   Needless to say I declined the offer to teach.

For me, I started as a Novice Class operator, not an Extra Class as many have done today.  I kept and operated my Novice station for almost a year before becoming a General Class operator. Finally moving up to Advanced and then Extra Class license. Personally today, I think the VEC program is a horrible failure and done a grave injustice to the ham radio society.

I'm glad I'm 77 years young, I have had my ham license since 1959 thus 61 years.  I'm also glad, the way things are going, I won't be around many more years to endure the mess.  This is just one step in the dumbing down of society in general.

From experience, the Elecraft Factory service is among the best in the world.  They, like others, are taking precautions necessary to protect the staff.  Smart decision.

73

Bob, K4TAX


Re: Factory service still available?

John Canfield
 

No, it's not uSoft. I just looked at the website for Classic Shell and the original developer quit the project 12/2017. It's now called Open Shell and it's on GitHub. Classic Shell works fine though, I have it installed on five or six PCs.
-- end of off-topic--


Re: Factory service still available?

Charlie T, k3ICH
 

Is that an official µSoft product, or after-market?

Sounds like a great program for us old W-7 users.

 

I have been holding off changing over to W-Ø, mainly because of all the grief everyone seem to have with it.

I know it’s inevitable, but so far, have been ignoring the little pop-up that reminds me every couple, days.

I have a good anti-virus, phishing etc. program running and have never had a problem.

That, plus the computer is put-to-sleep whenever I’m not actually using it.

 

Thanks for the little OT diversion, Charlie k3ICH

 

 

 

 

From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> On Behalf Of John Canfield
Sent: Tuesday, May 05, 2020 8:50 AM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] Factory service still available?

 

You can make Win10 more user friendly by installing Classic Shell (free) which replaces the standard menu, which I intensely hate. Classic Shell brings the familiar W7 menu back.

_._,_._,_

 


Re: Factory service still available?

radio@ebillsharp.com
 

Thanks Mel.

Sherm
w8hi

On May 4, 2020, at 11:50 PM, Ray Maxfield <wa6vab@...> wrote:

I hate Win 10………… wa6vab
 
From: Mel Marcus
Sent: Monday, May 4, 2020 6:01 PM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] Factory service still available?
 
the problem I had with the soundcard after a w10 upgrade was that it changed it from stereo to surround sound. I could hear it slightly but since it was looking for a center speaker, it was muffled. see if that is the case and change it back to stereo
 
Mel
NE9A
-------- Original Message --------
Subject: Re: [Elecraft-K3] Factory service still available?
From: "John Canfield" <bucket@...>
Date: Mon, May 04, 2020 5:33 pm
To: Elecraft-K3@groups.io

Think I have narrowed the problem down to W10 doing something with the sound card. I looked at the device properties and then all seems normal now.  At this point I'm ruling out RFI or at least that's on the back burner for now.

Thanks again everyone for the ideas, I appreciate the advice. 

John wb5tht  

 


Re: Factory service still available?

John Canfield
 

You can make Win10 more user friendly by installing Classic Shell (free) which replaces the standard menu, which I intensely hate. Classic Shell brings the familiar W7 menu back.


Re: Factory service still available?

Ray Maxfield
 

I hate Win 10………… wa6vab

 

From: Mel Marcus
Sent: Monday, May 4, 2020 6:01 PM
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] Factory service still available?

 

the problem I had with the soundcard after a w10 upgrade was that it changed it from stereo to surround sound. I could hear it slightly but since it was looking for a center speaker, it was muffled. see if that is the case and change it back to stereo

 

Mel

NE9A

-------- Original Message --------
Subject: Re: [Elecraft-K3] Factory service still available?
From: "John Canfield" <bucket@...>
Date: Mon, May 04, 2020 5:33 pm
To: Elecraft-K3@groups.io

Think I have narrowed the problem down to W10 doing something with the sound card. I looked at the device properties and then all seems normal now.  At this point I'm ruling out RFI or at least that's on the back burner for now.

Thanks again everyone for the ideas, I appreciate the advice. 

John wb5tht 

 


Re: Factory service still available?

Mel Marcus
 

the problem I had with the soundcard after a w10 upgrade was that it changed it from stereo to surround sound. I could hear it slightly but since it was looking for a center speaker, it was muffled. see if that is the case and change it back to stereo

Mel
NE9A

-------- Original Message --------
Subject: Re: [Elecraft-K3] Factory service still available?
From: "John Canfield" <bucket@...>
Date: Mon, May 04, 2020 5:33 pm
To: Elecraft-K3@groups.io

Think I have narrowed the problem down to W10 doing something with the sound card. I looked at the device properties and then all seems normal now.  At this point I'm ruling out RFI or at least that's on the back burner for now.

Thanks again everyone for the ideas, I appreciate the advice. 

John wb5tht 


Re: Factory service still available?

John Canfield
 

Think I have narrowed the problem down to W10 doing something with the sound card. I looked at the device properties and then all seems normal now.  At this point I'm ruling out RFI or at least that's on the back burner for now.

Thanks again everyone for the ideas, I appreciate the advice. 

John wb5tht 


Re: Factory service still available?

Bob McGraw - K4TAX
 

On more than one occasion, and not limited to all bands, but perhaps only one or two bands, I have found RF is getting into the computer via the USB cable between the radio and computer.  Using one of the snap-on ferrite cores used for RG-8 where I can get 2 or 3 turns of the cable through the snap-on core resolved the issue.  The core is best located at the computer end of the cable.  

Also, one might do well to nvestigate instances of Common Mode Current on feed lines coming into the operating position. 

73
Bob, K4TAX


Re: Factory service still available?

John Canfield
 

I'll check those settings, thanks for the tip Bob.

John WB5THT
K3S, P3, SP3, KPA1500


Re: Factory service still available? [WSJT-X bug?]

John Canfield
 

The weird thing is my K3S, PC and WSJT-X were all happy (aside from some operational issues with the app) and playing together nicely since about mid-December. The fly in the ointment could be a Win10 update hosed something up, I think I've had maybe two or three of those this year.

I wonder if Dr. Taylor is tracking bugs, I know there's a developer email list.


Re: Factory service still available?

Bob Benedict, KD8CGH
 

I had that intermittent TX problem with my K3. I had to power cycle the K3 to reset it to again TX. After a few email exchanges with Elecraft I think these recommended settings fixed it:
TX INH setting - Suggest set to OFF.
PTT setting - suggest OFF_OFF.
   73
     Bob   KD8CGH


Re: Factory service still available? [WSJT-X bug?]

Bob Bennett
 

I think it is the computer operating system which likes to go back to its factory set default. The Flex Radio SmartSDR has the same problem and the developers seemed, at least in Windows, to concede to Win10 and tell users not to use the Flex audio settings as the default Windows sound settings. 


Bob NZ2Z 


Re: Factory service still available?

John Canfield
 

Thank you Bob for the ideas. I just put the K3s into Tune and sure enough I was seeing the usual 20 watts (what I usually use with the amplifier) out on my station monitor so there's not an RF problem with the radio. Yesterday I rebooted the adjunct PC with no change. I haven't checked all bands - I usually operate on 20 and 40m so I need to do a thorough evaluation.

I'll have to look in the parts box for some toroids.


Re: 100 watt PA issue

Jeffrey griffin
 

I honestly don’t think I ran the K3 at more than 7 watts, to drive the AMP there is much info on this in the archives about the 12 watt usage, I just don’t remember. Unless 7 watts data usage is a problem?  Or the failure must have been brought on by the occasional 100 watts data usage? Most of the time, about 99%, I would just use the KPA500 with the K3 at around 20 watts drive on the data modes. The KAT500 in all operating modes was always on line. I’m using a fan dipole that is pretty close to resonant on the banks in question. So maybe the KAT500 has an issue? Anyway I’m going to call Elecraft and see if I can order a replacement L23. I’m going to replace it and do some testing. Hopefully I just did do something dumb, and this fixes the problem…

 

73 Jeff kb2m

 

From: Elecraft-K3@groups.io <Elecraft-K3@groups.io> On Behalf Of robert hammond via groups.io
Sent: Monday, May 04, 2020 4:21
To: Elecraft-K3@groups.io
Subject: Re: [Elecraft-K3] 100 watt PA issue

 

Jeff,
The “Achilles heel “ in the K3 power stages is the 12 watt amplifier which is only conduction cooled. In normal use on SSB/ CW modes it seem to be fine all day at 12 watts out ( 8 watts out on 50MHz) Running data modes with 100% duty cycle at fully rated power 12 watts you can feel the back of the K3 chassis is uncomfortably hot after 30 minutes “running” . 

Running a K3 at 100 watts out,  the 12 watt amp is probably running 10 watts plus to drive the PA? The fan will cool the PA but don’t know how effective that is at cooling the 12 watt amp stage. 
Having said that ....have run my  K3 at 100 watts in CQ WW RTTY for long periods without problems .... 

Maybe the clever guys at Elecraft could introduce a mod to set the max power out of the 12 watt amp to only say 6 watts when running data modes? , and thus engaging the final PA stage sooner than is currently the case? 

I have a choice here on data modes running either 75 watts out of the KPA500 using a conservative 6-7 watts out of the K3 , or to set 14 watts out of the K3 to run around 175 watts out of the KPA500. This avoids the 12 watt PA being run greater than half power on 100% duty modes. 

73

Bob G4DBW


Re: 100 watt PA issue

Bob Hammond G4DBW
 

Jeff,
The “Achilles heel “ in the K3 power stages is the 12 watt amplifier which is only conduction cooled. In normal use on SSB/ CW modes it seem to be fine all day at 12 watts out ( 8 watts out on 50MHz) Running data modes with 100% duty cycle at fully rated power 12 watts you can feel the back of the K3 chassis is uncomfortably hot after 30 minutes “running” . 

Running a K3 at 100 watts out,  the 12 watt amp is probably running 10 watts plus to drive the PA? The fan will cool the PA but don’t know how effective that is at cooling the 12 watt amp stage. 
Having said that ....have run my  K3 at 100 watts in CQ WW RTTY for long periods without problems .... 

Maybe the clever guys at Elecraft could introduce a mod to set the max power out of the 12 watt amp to only say 6 watts when running data modes? , and thus engaging the final PA stage sooner than is currently the case? 

I have a choice here on data modes running either 75 watts out of the KPA500 using a conservative 6-7 watts out of the K3 , or to set 14 watts out of the K3 to run around 175 watts out of the KPA500. This avoids the 12 watt PA being run greater than half power on 100% duty modes. 

73

Bob G4DBW