Re: [Elecraft] Need K3 Board

[David Gilbert]

LOL.  I bet you don't even know if the board is multilayer or not. I 
don't, and I'm not about to pull it out of the rig just to find out.


I had a KIO3 board go bad in the past and was lucky enough to be able to 
replace it then.  Pretty certain I'm screwed if it happens again.


Dave   AB7E


On 11/26/2021 11:37 PM, Ray wrote:


Its done Every Day.

Look at Russia and China !

Yes, it takes a very Special Skill set..

Ray WA6VAB K3

*From: *David Gilbert 
*Sent: *Friday, November 26, 2021 3:37 PM
*To: *elecraft@mailman.qth.net
*Subject: *Re: [Elecraft] Need K3 Board

Would you try to replicate that board from that schematic without having

access to the artwork for the board??  No frigging way.  It has to fit

into a fairly small space.

Dave   AB7E

On 11/26/2021 3:53 PM, Ray wrote:

> The schematic is Published, Check the Elecraft K3 site.

> Ray WA6VAB K3

>

>

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Re: [Elecraft] Need K3 Board

[Ray]

Its done Every Day.
Look at Russia and China !
Yes, it takes a very Special Skill set.. 
Ray WA6VAB K3 



From: David Gilbert
Sent: Friday, November 26, 2021 3:37 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Need K3 Board


Would you try to replicate that board from that schematic without having 
access to the artwork for the board??  No frigging way.  It has to fit 
into a fairly small space.

Dave   AB7E


On 11/26/2021 3:53 PM, Ray wrote:
> The schematic is Published, Check the Elecraft K3 site.
> Ray WA6VAB K3
>
>

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[Elecraft] Need K3 Board

[Bob McGraw]

In reading this, it brings a point of history to mind.  If the equipment 
was damaged by a thunderstorm or lightning, my personal experience, is 
that one's homeowner's insurance should pay replacement cost, less the 
deductible.   I'm no insurance specialist and I'm sure policies are 
different in this regard. However, what I learned is that an "electrical 
surge" which damaged equipment will be covered at the depreciated value 
of the equipment.  Yet, lightning damage which damaged equipment will be 
paid at replacement value.   There is a BIG DIFFERENCE!


Yes, one has to prove lightning damage, it can be done, but is it worth 
getting a new radio vs. having to scrounge around to find parts and 
repair an existing radio.    I know, in one instance, I had some $12K in 
damage from lightning.   I had to pay the $1000 deductible  but 
everything was replaced NEW!    TV's, surround sound systems, satellite 
receivers, telephones, microwave, ham radios, ham amplifiers,  garage 
door openers, and such.


Persistence pays!

73

Bob, K4TAX



On 11/26/2021 4:27 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 8
Date: Fri, 26 Nov 2021 10:31:48 -0600
From: "Gary H. Harmon, Jr."
To:
Subject: [Elecraft] Need K3 Board
Message-ID:<00be01d7e2e3$1bca3810$535ea830$@idworld.net>
Content-Type: text/plain;   charset="us-ascii"

A good friend's K3 was damaged in a thunderstorm several months ago.  After
thinking it was repaired he now knows the KIO3B Digital IO Board is flaky.
Elecraft has none.  Anyone have a good one for sale?

  


Thanks and 73,

  


Gary H. Harmon, Jr. - K5JWK

HAM Radio, HEATHKIT, and ATARI Archaeologist

6003 Archwood

San Antonio, TX 78239-1504


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[Elecraft] Background Noise with Mike Plugged in to Rear, , , Mike Jack

[Bob McGraw]

Victor makes a good point here.  One thing to examine and one point 
often overlooked and largely not understood by hams and manufactures has 
to do with baluns and common mode chokes.  All are not created equal, 
regardless of what the glossy advertising may say.   Baluns in tuners 
are largely incorrect designs and have been for years.


I recall that Jim, K9YC was asked to test a group of baluns of a certain 
company, in preparation for use at an off-shore DX station.  In summary, 
his results indicated they were barely, if at all, a balun.   Otherwise, 
expensive junk!


Personally, I have all of Jim's works in a binder.  I also subscribe to 
the work of Tom, W8JI and that of Rick, DJ0IP.  What they say and write 
is fact!  What is advertised is more "old ham lore" and they want you to 
drink the "kool-aid".


What ever your choice of antenna and feed line orientation is your 
choice.  Likewise the correct balun and common mode choke. The latter 
seems to create more incorrect information and results than favorable 
ones.   Follow the work of Jim, K9YC, Tom, W8JI and Rick, DJ0IP and 
build your own.  Do it correctly and they are easy and a whole lot less 
expensive, saving one $100's of dollars and getting much better 
results.   If there was a good commercial balun available, I'd recommend 
it.  Butsorry to say.I haven't found one.


73

Bob, K4TAX


Message: 6

Date: Fri, 26 Nov 2021 10:10:36 +0200
From: Victor Rosenthal 4X6GP
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] Background Noise with Mike Plugged in to Rear,
, Mike Jack
Message-ID:
Content-Type: text/plain; charset=UTF-8; format=flowed

In my experience, the single most important factor in reducing RFI
problems is to prevent RF from flowing back into the station via common
mode current on the feedline. This is easiest to do with balanced
antennas. If they are coax-fed, then you need the appropriate choke at
the feedpoint. And if the coax does not run perpendicular to the
antenna, then a choke will probably be required at the entry to the
shack as well.

Balanced antennas fed with balanced line like window line or open wire
line work best with true balanced antenna tuners. The common practice of
feeding a balanced line running a high SWR via an unbalanced tuner and a
balun is less efficient both from the standpoint of power loss (the
balun gets hot) and choking efficiency (the common mode current gets
through).

An inherently unbalanced antenna, like an OCF dipole, also requires
choking, but the demands on the choke(s) are higher.

RFI problems will vary according to the lengths of the feedlines and the
band in use. A system that is clean on one band may be dirty on others
if common mode currents aren't suppressed.

The time to apply ferrites is AFTER you have done the best possible job
of reducing common mode currents, and after all your equipment is bonded
together. I found that bonding my metal operating desk to the system helped.

73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/


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Re: [Elecraft] Using KX3 Utility to decode CW, RTTY

[Bill Frantz]

My experience with the K3 may have some application here. When 
using the K3 to decode CW/RTTY, the decoded text can be 
displayed on the K3, on the P3, or have it sent to a computer. 
If you try to display it on the P3 and send it to the computer, 
both locations drop characters. If you want the computer to get 
the complete decode, turn off the display on the P3.


73 Bill AE6JV

On 11/26/21 at 8:34 PM, dhai...@bates.edu (David Haines) wrote:

Good observation, which I should have known.  Only the KX3 
decodes. The KX3 Utility displays only part of what is on the 
KX3 text display and must be losing something along the way.  
The PX3 seems to display what is on the KX3 text display, but 
often adds a lot of characters.  Has anybody had success using 
the KX3 Utility Terminal?  Fred Cady recommends it.


---
Bill Frantz| Truth and love must prevail  | Periwinkle
(408)348-7900  | over lies and hate.  | 150 
Rivermead Rd #235
www.pwpconsult.com |   - Vaclav Havel | 
Peterborough, NH 03458


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Re: [Elecraft] Using KX3 Utility to decode CW, RTTY

[David Haines]

Good observation, which I should have known.  Only the KX3 decodes. The 
KX3 Utility displays only part of what is on the KX3 text display and 
must be losing something along the way.  The PX3 seems to display what 
is on the KX3 text display, but often adds a lot of characters.  Has 
anybody had success using the KX3 Utility Terminal?  Fred Cady 
recommends it.


73,

david
KC1DNY

On 11/26/2021 8:09 PM, Julia Tuttle wrote:
The KX3 Utility doesn't *decode* digital signals, it just reads out 
the characters the KX3 has decoded, just like the PX3 does. I don't 
think you can have both the PX3 and a PC app showing decoded text at 
the same time; the manual says it's unsupported, and from the 
programmer's reference it seems technically possible but tricky. 
(There's a command to read received characters from the KX3, and both 
recipients would need to watch for responses to that command *even 
when they haven't asked for any*, or else they'll miss text sent in 
response to the other recipient's command.)


73,

Julie



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Re: [Elecraft] Using KX3 Utility to decode CW, RTTY

[Julia Tuttle]

The KX3 Utility doesn't *decode* digital signals, it just reads out the
characters the KX3 has decoded, just like the PX3 does. I don't think you
can have both the PX3 and a PC app showing decoded text at the same time;
the manual says it's unsupported, and from the programmer's reference it
seems technically possible but tricky. (There's a command to read received
characters from the KX3, and both recipients would need to watch for
responses to that command *even when they haven't asked for any*, or else
they'll miss text sent in response to the other recipient's command.)

73,

Julie
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[Elecraft] Using KX3 Utility to decode CW, RTTY

[David Haines]

The receive screen on my KX3 Utility/Terminal shows fewer characters 
than on the text screen on my PX3, also different from the text screen 
on the KX3.


I can decode CW better in my head than the KX3, PX3, or KX3Utility!

Does the KX3 Utility terminal decode digital signals at all?  I've never 
gotten it to work.


Setup is simple KX3, PX3 and Signalink.

73,
david haines
KC1DNY
in the woods of Maine
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[Elecraft] Fwd: Need K3 Board

[Dr. William J. Schmidt]

> 
> Reverse engineer it?  The schematics are readily available for it.  
> 
> I think fixing damaged nonworking boards os much easier.  So those who have 
> older nonfunctioning boards might think about selling them to those of us 
> that can fix them, thus having stock for the rest.  
> 
> 
> Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
> 
> email:  b...@wjschmidt.com
>  
> 
>>> On Nov 26, 2021, at 7:33 PM, David Gilbert  wrote:
>>> 
>> 
>> Both of those reasons are bogus in my opinion.
>> 
>> For the first, a digital interface board is way down the list of what would 
>> be actual intellectual property.  There is no software or special circuitry 
>> such as an LPGA or similar) involved at all.
>> 
>> For the second, I sincerely doubt that Elecraft used some special capacitor 
>> or some tight tolerance part or an obsolete digital chip for a simple 
>> digital interface.  They simply wouldn't have needed to.  Most of the 
>> products that Elecraft has discontinued have nothing to do with unavailable 
>> parts ... other than delays due to supply chain issues.   They discontinued 
>> those products because they had limited human resources to maintain that 
>> breadth of product line.
>> 
>> I'd bet that it would be possible to reverse engineer the KIO3 boards, which 
>> based upon the number of posts here to the reflector are fairly high on the 
>> list of chance for failure ... it would just be far easier to have the parts 
>> list and board artwork to work with.  Elecraft has nothing to lose (and a 
>> lot to gain in terms of good will) by making those things available for 
>> extending the life of products they once promised we could always count on 
>> them for.
>> 
>> Dave   AB7E
>> 
>> 
>> 
>>> On 11/26/2021 3:07 PM, Jim Brown wrote:
 On 11/26/2021 1:49 PM, Fred Jensen wrote:
 Elecraft has a very significant investment in those data [often called 
 Intellectual Property].  Can't really see them just giving it away.  
 Likewise computer codes. I'm not at all surprised that they're holding 
 their IP close to the chest.
>>> 
>>> More to the point, the reason Elecraft has stopped building certain 
>>> products is that key components are no longer available.
>>> 
>>> 73, Jim K9YC
>> 
>> __
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Re: [Elecraft] Need K3 Board

[Josh Fiden]

Because it’s old is no guarantee it’s gone. I have numerous through hole 
semiconductors dating back to early ‘90s designs that are still available. 
Making the blanket statement that it can’t be produced because components must 
have EOL is meaningless. If that parts had significant usage, they very likely 
still exist. Even if not, small qtys, say <50 can be found from brokers. 

73,
Josh W6XU

Sent from my iPad

> On Nov 26, 2021, at 2:20 PM, Fred Jensen  wrote:
> Yes indeed.  I wonder what the availability and useful life of the 6L6 or 807 
> types were?  They were ubiquitous in 1953 when I began, and they continued 
> well into the 70's before power semiconductors came on the scene.  Excluding 
> the NE555 which seems to have an infinite lifetime, if a semiconductor 
> component stays alive in the supply chain for 5 years, it's a long-hauler.

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Re: [Elecraft] Need K3 Board

[David Gilbert]

Would you try to replicate that board from that schematic without having 
access to the artwork for the board??  No frigging way.  It has to fit 
into a fairly small space.


Dave   AB7E


On 11/26/2021 3:53 PM, Ray wrote:

The schematic is Published, Check the Elecraft K3 site.
Ray WA6VAB K3




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Re: [Elecraft] Need K3 Board

[David Gilbert]

Both of those reasons are bogus in my opinion.

For the first, a digital interface board is way down the list of what 
would be actual intellectual property.  There is no software or special 
circuitry such as an LPGA or similar) involved at all.


For the second, I sincerely doubt that Elecraft used some special 
capacitor or some tight tolerance part or an obsolete digital chip for a 
simple digital interface.  They simply wouldn't have needed to.  Most of 
the products that Elecraft has discontinued have nothing to do with 
unavailable parts ... other than delays due to supply chain issues.   
They discontinued those products because they had limited human 
resources to maintain that breadth of product line.


I'd bet that it would be possible to reverse engineer the KIO3 boards, 
which based upon the number of posts here to the reflector are fairly 
high on the list of chance for failure ... it would just be far easier 
to have the parts list and board artwork to work with.  Elecraft has 
nothing to lose (and a lot to gain in terms of good will) by making 
those things available for extending the life of products they once 
promised we could always count on them for.


Dave   AB7E



On 11/26/2021 3:07 PM, Jim Brown wrote:

On 11/26/2021 1:49 PM, Fred Jensen wrote:
Elecraft has a very significant investment in those data [often 
called Intellectual Property].  Can't really see them just giving it 
away.  Likewise computer codes. I'm not at all surprised that they're 
holding their IP close to the chest.


More to the point, the reason Elecraft has stopped building certain 
products is that key components are no longer available.


73, Jim K9YC


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Re: [Elecraft] Need K3 Board

[Julia Tuttle]

Pardon, that's for the KIO2. The KIO3B is part of
https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740323%20K3s%20Schematic%20Files.pdf

On Fri, Nov 26, 2021 at 5:56 PM Julia Tuttle  wrote:

> So it is! Page 24 of
> https://ftp.elecraft.com/K2/Manuals%20Downloads/KIO2%20man%20rev%20C%20.pdf
>
> Thanks, Ray!
>
> 73,
>
> Julie
>
> On Fri, Nov 26, 2021 at 5:53 PM Ray  wrote:
>
>> The schematic is Published, Check the Elecraft K3 site.
>>
>> Ray WA6VAB K3
>>
>>
>>
>>
>>
>> *From: *Julia Tuttle 
>> *Sent: *Friday, November 26, 2021 2:27 PM
>> *To: *Fred Jensen 
>> *Cc: *Elecraft 
>> *Subject: *Re: [Elecraft] Need K3 Board
>>
>>
>>
>> I can see that for the radios themselves, but something like an IO board
>>
>> seems less likely to have competitively clever design tricks in it.
>>
>>
>>
>> I can also see keeping the designs of even simple expansion boards secret
>>
>> while the radio is actively being sold, since cheaper clones would
>> threaten
>>
>> the profit needed to recoup the R&D on the boards, plus the clones might
>>
>> use inferior parts.
>>
>>
>>
>> But it does seem like, at this point, releasing a schematic and board
>>
>> design would be helpful to users with less downside to Elecraft.
>>
>>
>>
>> 73,
>>
>>
>>
>> Julie
>>
>>
>>
>> On Fri, Nov 26, 2021, 16:50 Fred Jensen  wrote:
>>
>>
>>
>> > Hmmm ... Elecraft has a very significant investment in those data [often
>>
>> > called Intellectual Property].  Can't really see them just giving it
>>
>> > away.  Likewise computer codes.  I'm not at all surprised that they're
>>
>> > holding their IP close to the chest.
>>
>> >
>>
>> > 73,
>>
>> >
>>
>> > Fred ["Skip"] K6DGW
>>
>> > Sparks NV DM09dn
>>
>> > Washoe County
>>
>> >
>>
>> > David Gilbert wrote on 11/26/2021 8:45 AM:
>>
>> > >
>>
>> > > I wish that Elecraft would make available the board layout, parts
>>
>> > > lists, etc that would allow somebody to replicate these boards. Even
>>
>> > > if nobody wanted to produce them commercially, there are a raft of
>>
>> > > prototype houses that would build a one-off version at a reasonable
>>
>> > > price ... at least "reasonable" compared with the alternative of
>>
>> > > having a mostly useless rig if you are a contester.
>>
>> > >
>>
>> > > 73,
>>
>> > > Dave   AB7E
>>
>> >
>>
>> >
>>
>> >
>>
>> > --
>>
>> > This email has been checked for viruses by AVG.
>>
>> > https://www.avg.com
>>
>> > __
>>
>> > Elecraft mailing list
>>
>> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> > Help: http://mailman.qth.net/mmfaq.htm
>>
>> > Post: mailto:Elecraft@mailman.qth.net
>>
>> >
>>
>> > This list hosted by: http://www.qsl.net
>>
>> > Please help support this email list: http://www.qsl.net/donate.html
>>
>> > Message delivered to ju...@juliatuttle.net
>>
>> __
>>
>> Elecraft mailing list
>>
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>>
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>>
>>
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>>
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>>
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>>
>>
>>
>
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Re: [Elecraft] Need K3 Board

[Julia Tuttle]

So it is! Page 24 of
https://ftp.elecraft.com/K2/Manuals%20Downloads/KIO2%20man%20rev%20C%20.pdf

Thanks, Ray!

73,

Julie

On Fri, Nov 26, 2021 at 5:53 PM Ray  wrote:

> The schematic is Published, Check the Elecraft K3 site.
>
> Ray WA6VAB K3
>
>
>
>
>
> *From: *Julia Tuttle 
> *Sent: *Friday, November 26, 2021 2:27 PM
> *To: *Fred Jensen 
> *Cc: *Elecraft 
> *Subject: *Re: [Elecraft] Need K3 Board
>
>
>
> I can see that for the radios themselves, but something like an IO board
>
> seems less likely to have competitively clever design tricks in it.
>
>
>
> I can also see keeping the designs of even simple expansion boards secret
>
> while the radio is actively being sold, since cheaper clones would threaten
>
> the profit needed to recoup the R&D on the boards, plus the clones might
>
> use inferior parts.
>
>
>
> But it does seem like, at this point, releasing a schematic and board
>
> design would be helpful to users with less downside to Elecraft.
>
>
>
> 73,
>
>
>
> Julie
>
>
>
> On Fri, Nov 26, 2021, 16:50 Fred Jensen  wrote:
>
>
>
> > Hmmm ... Elecraft has a very significant investment in those data [often
>
> > called Intellectual Property].  Can't really see them just giving it
>
> > away.  Likewise computer codes.  I'm not at all surprised that they're
>
> > holding their IP close to the chest.
>
> >
>
> > 73,
>
> >
>
> > Fred ["Skip"] K6DGW
>
> > Sparks NV DM09dn
>
> > Washoe County
>
> >
>
> > David Gilbert wrote on 11/26/2021 8:45 AM:
>
> > >
>
> > > I wish that Elecraft would make available the board layout, parts
>
> > > lists, etc that would allow somebody to replicate these boards. Even
>
> > > if nobody wanted to produce them commercially, there are a raft of
>
> > > prototype houses that would build a one-off version at a reasonable
>
> > > price ... at least "reasonable" compared with the alternative of
>
> > > having a mostly useless rig if you are a contester.
>
> > >
>
> > > 73,
>
> > > Dave   AB7E
>
> >
>
> >
>
> >
>
> > --
>
> > This email has been checked for viruses by AVG.
>
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Re: [Elecraft] Need K3 Board

[Ray]

The schematic is Published, Check the Elecraft K3 site.
Ray WA6VAB K3


From: Julia Tuttle
Sent: Friday, November 26, 2021 2:27 PM
To: Fred Jensen
Cc: Elecraft
Subject: Re: [Elecraft] Need K3 Board

I can see that for the radios themselves, but something like an IO board
seems less likely to have competitively clever design tricks in it.

I can also see keeping the designs of even simple expansion boards secret
while the radio is actively being sold, since cheaper clones would threaten
the profit needed to recoup the R&D on the boards, plus the clones might
use inferior parts.

But it does seem like, at this point, releasing a schematic and board
design would be helpful to users with less downside to Elecraft.

73,

Julie

On Fri, Nov 26, 2021, 16:50 Fred Jensen  wrote:

> Hmmm ... Elecraft has a very significant investment in those data [often
> called Intellectual Property].  Can't really see them just giving it
> away.  Likewise computer codes.  I'm not at all surprised that they're
> holding their IP close to the chest.
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> David Gilbert wrote on 11/26/2021 8:45 AM:
> >
> > I wish that Elecraft would make available the board layout, parts
> > lists, etc that would allow somebody to replicate these boards. Even
> > if nobody wanted to produce them commercially, there are a raft of
> > prototype houses that would build a one-off version at a reasonable
> > price ... at least "reasonable" compared with the alternative of
> > having a mostly useless rig if you are a contester.
> >
> > 73,
> > Dave   AB7E
>
>
>
> --
> This email has been checked for viruses by AVG.
> https://www.avg.com
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Re: [Elecraft] [K2] Cheap power supply for KBT2

[Douglas Hagerman via Elecraft]

Thanks for the comments and ideas for a K2 battery charger. This would simply 
be to charge the battery when away from home, so I don’t really care about RF 
noise.

Doug, W0UHU.

> Subject: Re: [Elecraft] [K2] Cheap power supply for KBT2
> 
> Hi Jim,
> 
> Excellent article.  I haven't checked if it is a source of noise, but it
> doesn't quite matter because this is a charger, not a power supply.  I only
> use it when I need to charge a battery, so it is OK.
> 
> Best 73,
> 
> Chris KM1B

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Re: [Elecraft] Legal Limit With FT8

[Julia Tuttle]

...also, I don't think there *would* be anything wrong with sharing the
factual details of a dispute if you've made a good faith effort to resolve
it privately and gotten nowhere?

"Don't say anything disparaging about anyone else in the group" can end up
papering over a *ton* of (technical or social) harm being done and
preventing it from being resolved.

73,

Julie

On Fri, Nov 26, 2021, 17:23 Richard  wrote:

> It might have been derogatory if I had named the other guy as you asked me
> to do; the information I shared is absolutely true. What's your problem?
>
> Richard
>
> > On Nov 26, 2021, at 4:52 PM, Bob McGraw  wrote:
> >
> > Richard:
> >
> > May I suggest you refrain from posting derogatory or incorrect
> information on any ham radio site. It is in the best interest of all of us.
> >
> > 73
> >
> > Bob, K4TAX
> >
> >
> > On 11/26/2021 3:38 PM, Richard wrote:
> >>> I'd like to know more about the high power station running FT-8 which
> is allegedly causing you issues. Who is he (call), where's he located, what
> band(s) are affected, when does this occur?
>
> >> This was about two years ago, nothing is current. Anyway, I wouldn't
> give you that information; I'm not registering a complaint. Let sleeping
> dogs lie.
> >
>
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Re: [Elecraft] Need K3 Board

[Julia Tuttle]

I can see that for the radios themselves, but something like an IO board
seems less likely to have competitively clever design tricks in it.

I can also see keeping the designs of even simple expansion boards secret
while the radio is actively being sold, since cheaper clones would threaten
the profit needed to recoup the R&D on the boards, plus the clones might
use inferior parts.

But it does seem like, at this point, releasing a schematic and board
design would be helpful to users with less downside to Elecraft.

73,

Julie

On Fri, Nov 26, 2021, 16:50 Fred Jensen  wrote:

> Hmmm ... Elecraft has a very significant investment in those data [often
> called Intellectual Property].  Can't really see them just giving it
> away.  Likewise computer codes.  I'm not at all surprised that they're
> holding their IP close to the chest.
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> David Gilbert wrote on 11/26/2021 8:45 AM:
> >
> > I wish that Elecraft would make available the board layout, parts
> > lists, etc that would allow somebody to replicate these boards. Even
> > if nobody wanted to produce them commercially, there are a raft of
> > prototype houses that would build a one-off version at a reasonable
> > price ... at least "reasonable" compared with the alternative of
> > having a mostly useless rig if you are a contester.
> >
> > 73,
> > Dave   AB7E
>
>
>
> --
> This email has been checked for viruses by AVG.
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Re: [Elecraft] Legal Limit With FT8

[Richard]

It might have been derogatory if I had named the other guy as you asked me to 
do; the information I shared is absolutely true. What's your problem?

Richard

> On Nov 26, 2021, at 4:52 PM, Bob McGraw  wrote:
> 
> Richard:
> 
> May I suggest you refrain from posting derogatory or incorrect information on 
> any ham radio site. It is in the best interest of all of us.
> 
> 73
> 
> Bob, K4TAX
> 
> 
> On 11/26/2021 3:38 PM, Richard wrote:
>>> I'd like to know more about the high power station running FT-8 which is 
>>> allegedly causing you issues. Who is he (call), where's he located, what 
>>> band(s) are affected, when does this occur?

>> This was about two years ago, nothing is current. Anyway, I wouldn't give 
>> you that information; I'm not registering a complaint. Let sleeping dogs lie.
> 

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Re: [Elecraft] Need K3 Board

[Fred Jensen]

Yes indeed.  I wonder what the availability and useful life of the 6L6 
or 807 types were?  They were ubiquitous in 1953 when I began, and they 
continued well into the 70's before power semiconductors came on the 
scene.  Excluding the NE555 which seems to have an infinite lifetime, if 
a semiconductor component stays alive in the supply chain for 5 years, 
it's a long-hauler. 😉


73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Jim Brown wrote on 11/26/2021 2:07 PM:

On 11/26/2021 1:49 PM, Fred Jensen wrote:
Elecraft has a very significant investment in those data [often 
called Intellectual Property].  Can't really see them just giving it 
away. Likewise computer codes.  I'm not at all surprised that they're 
holding their IP close to the chest.


More to the point, the reason Elecraft has stopped building certain 
products is that key components are no longer available.


73, Jim K9YC




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Re: [Elecraft] No bars at all on KX3 digital mode transmit

[Julia Tuttle]

Oh, I get that, I just don't understand why the radio doesn't more clearly
indicate what's happening, with something like flashing full bars or an
error code ("HI MIC"?). As it stands, an operator can't tell "input is too
low to trigger ALC at all" from "input is so high the radio is ignoring it
entirely".

On Fri, Nov 26, 2021, 17:05 Don Wilhelm  wrote:

> Julia,
>
> That is designed in to prevent the audio front end from being damaged by
> a high audio level.
> For those who have read my document on setting the audio levels, I was
> careful to state that one should start with each audio level (computer
> and KX3) to mid-range for a starting point and adjust from there a bit
> at a time.
>
> 73,
> Don W3FPR
>
> On 11/23/2021 8:34 PM, Julia Tuttle wrote:
> > Does anyone know *why* it does that? It's confusing when no bars means
> > either "way too high" or "way too low".
> >
> > On Tue, Nov 23, 2021, 20:22 AL7CR  wrote:
> >
> >> A classic problem.  You have TOO MUCH input gain.  Counterintuitively
> the
> >> KX 3 ALC will display nothing if over driven.  Turn the input way down
> and
> >> then increase in small steps.  You will find the right setting to show
> ALC
> >> that way.
> >> On Tue, Nov 23, 2021, at 2:57 PM, Frank O'Donnell wrote:
> >>> After not having used my KX3 in a while, today I set it up with a
> laptop
> >>> on the front porch to send FT8 in WSJT-X with a new AX1 antenna.
> >>>
> >>> I went through the procedure in Don W3FPR's document "Setting Elecraft
> >>> Transceivers for soundcard digital," setting in and out audio levels on
> >>> my MacBook Pro for the thumbnail-sized Sabrent USB soundcard; Mic Gain
> >>> on the KX3; and the power slider in WSJT-X. CAT control is working
> fine,
> >>> and the KX3 is in DATA A mode. The waterfall of incoming signals
> appears
> >>> normal.
> >>>
> >>> I seem to be getting a good signal out, with -1 dB reported from
> Alaska,
> >>> and -7 to -10 dB from the U.S. east coast with the above settings
> around
> >>> midrange, and with the KX3 set for 15w out. However, I don't see any
> >>> bars at all on the ALC meter at any time, even when the USB soundcard
> >>> out, KX3 Mic Gain and WSJT-X power slider are set as high as their
> >> maximums.
> >>> Am I forgetting a setting? Anything I can look at to troubleshoot the
> >>> ALC meter function?
> >>>
> >>> Thanks much,
> >>>
> >>> Frank K6FOD
> >>> Southern California
> >>>
> >>>
> >>> __
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Re: [Elecraft] Need K3 Board

[Jim Brown]

On 11/26/2021 1:49 PM, Fred Jensen wrote:
Elecraft has a very significant investment in those data [often called 
Intellectual Property].  Can't really see them just giving it away.  
Likewise computer codes.  I'm not at all surprised that they're holding 
their IP close to the chest.


More to the point, the reason Elecraft has stopped building certain 
products is that key components are no longer available.


73, Jim K9YC
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Re: [Elecraft] No bars at all on KX3 digital mode transmit

[Don Wilhelm]

Julia,

That is designed in to prevent the audio front end from being damaged by 
a high audio level.
For those who have read my document on setting the audio levels, I was 
careful to state that one should start with each audio level (computer 
and KX3) to mid-range for a starting point and adjust from there a bit 
at a time.


73,
Don W3FPR

On 11/23/2021 8:34 PM, Julia Tuttle wrote:

Does anyone know *why* it does that? It's confusing when no bars means
either "way too high" or "way too low".

On Tue, Nov 23, 2021, 20:22 AL7CR  wrote:


A classic problem.  You have TOO MUCH input gain.  Counterintuitively the
KX 3 ALC will display nothing if over driven.  Turn the input way down and
then increase in small steps.  You will find the right setting to show ALC
that way.
On Tue, Nov 23, 2021, at 2:57 PM, Frank O'Donnell wrote:

After not having used my KX3 in a while, today I set it up with a laptop
on the front porch to send FT8 in WSJT-X with a new AX1 antenna.

I went through the procedure in Don W3FPR's document "Setting Elecraft
Transceivers for soundcard digital," setting in and out audio levels on
my MacBook Pro for the thumbnail-sized Sabrent USB soundcard; Mic Gain
on the KX3; and the power slider in WSJT-X. CAT control is working fine,
and the KX3 is in DATA A mode. The waterfall of incoming signals appears
normal.

I seem to be getting a good signal out, with -1 dB reported from Alaska,
and -7 to -10 dB from the U.S. east coast with the above settings around
midrange, and with the KX3 set for 15w out. However, I don't see any
bars at all on the ALC meter at any time, even when the USB soundcard
out, KX3 Mic Gain and WSJT-X power slider are set as high as their

maximums.

Am I forgetting a setting? Anything I can look at to troubleshoot the
ALC meter function?

Thanks much,

Frank K6FOD
Southern California


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Re: [Elecraft] Elecraft K1 VFO reading

[Mike Smith VE9AA]

Thank you very much Don !

This is exactly the type of FB information I was looking for.

I rec'd a few emails telling me to calibrate it, however the VFO reads right 
smack dab on perfect, so I didn't
wish to mess with it by redoing something that may not help.

I'll probably just leave it (at least for now), but your info is very much 
appreciated and I'll save it for a rainy day perhaps.  
The only time I would ever make a QSO above 7068 or 14063 would be in a 
contest, and this would not be the rig I'd be contesting with, hi

I have a ton of other rigs (some Elecrafts tooKX3, KX2(on order) and a K3) 
and some Japanese rigs too.All are much better suited to contesting.

This lil' guy will see light duty as a Motorcycle mobile (portable, really) rig 
for Parks or Islands on the air and the occasional Wednesday "CWT" (an activity 
event like a contest).  I like its simplicity and very small size.  Good for 
the Harley.

Thanks again Don and all.

What a great bunch !

Maybe see some of you (all of a sudden!) in CQWW CW this weekend.  I'll be 15m 
single band.

Mike VE9AA

Mike, Coreen & Corey
Keswick Ridge, NB


-Original Message-
From: Don Wilhelm [mailto:d...@w3fpr.com] 
Sent: November 26, 2021 5:52 PM
To: Mike Smith VE9AA; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Elecraft K1 VFO reading

Mike,

The K1 must tune a bit below the low end of each band.  That is to 
compensate for the crystals on the band board not being precision 
crystals - so your K1 is behaving as normal.

You CAN tweak it by a small amount on ONE band (the 2nd band will change 
too).

In your case, I would choose 40 meters since it is only low by 20 kHz 
while 20 meters is low by 26 kHz.
You can do this in receive by looking at the frequency display because 
you have already confirmed it is showing the correct frequency.

Tune the VFO to the low end of 40 meters and then spread (or compress) 
the turns of L1 a little at a time until the display shows about 
6995kHz, then check 20 meters to make sure it is a bit below the band 
edge too.
That is the best compromise that you can do without losing a bit of the 
bottom edge of the band.

73,
Don W3FPR

On 11/26/2021 3:17 PM, Mike Smith VE9AA wrote:
> Just bought a K1..an oldie but a goodie, I guess.
>
> NB board and 2 bands board (20/40) No tuner.
>
>   
>
> So, just playing around, getting familiarized with this new-to-me little rig
> before transmitting or hooking it up to a real antenna and I notice:
>
>   
>
> on 20m:  it tunes from 13.974MHz - 14.063MHz
>
>   
>
> and on it tunes from 40m from 6.980MHz-7.068MHz
>
>   
>
> When I transmit on a nearby rig or compare frequencies to DX cluster spots,
> just using a chunk of wire for an antenna, and listen for the various
> stations it looks like the VFO is reading pretty much bang on.
>
>   
>
> So, is this a matter of incorrect components installed or a poor alignment
> or the (re)seller messing with the "CAL" in the menu or ??
>
>   
>
> I don't really want to mess with it too much, but I am missing 20-25kHz of
> usable bandwidth on each band. (seems like I have about 88kHz of tuning
> range, but 20-26kHz of it is below the bands---oof !)
>
>   
>
>

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Re: [Elecraft] Elecraft K1 VFO reading

[Don Wilhelm]

Mike,

The K1 must tune a bit below the low end of each band.  That is to 
compensate for the crystals on the band board not being precision 
crystals - so your K1 is behaving as normal.


You CAN tweak it by a small amount on ONE band (the 2nd band will change 
too).


In your case, I would choose 40 meters since it is only low by 20 kHz 
while 20 meters is low by 26 kHz.
You can do this in receive by looking at the frequency display because 
you have already confirmed it is showing the correct frequency.


Tune the VFO to the low end of 40 meters and then spread (or compress) 
the turns of L1 a little at a time until the display shows about 
6995kHz, then check 20 meters to make sure it is a bit below the band 
edge too.
That is the best compromise that you can do without losing a bit of the 
bottom edge of the band.


73,
Don W3FPR

On 11/26/2021 3:17 PM, Mike Smith VE9AA wrote:

Just bought a K1..an oldie but a goodie, I guess.

NB board and 2 bands board (20/40) No tuner.

  


So, just playing around, getting familiarized with this new-to-me little rig
before transmitting or hooking it up to a real antenna and I notice:

  


on 20m:  it tunes from 13.974MHz - 14.063MHz

  


and on it tunes from 40m from 6.980MHz-7.068MHz

  


When I transmit on a nearby rig or compare frequencies to DX cluster spots,
just using a chunk of wire for an antenna, and listen for the various
stations it looks like the VFO is reading pretty much bang on.

  


So, is this a matter of incorrect components installed or a poor alignment
or the (re)seller messing with the "CAL" in the menu or ??

  


I don't really want to mess with it too much, but I am missing 20-25kHz of
usable bandwidth on each band. (seems like I have about 88kHz of tuning
range, but 20-26kHz of it is below the bands---oof !)

  





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Re: [Elecraft] Need K3 Board

[Fred Jensen]

Hmmm ... Elecraft has a very significant investment in those data [often 
called Intellectual Property].  Can't really see them just giving it 
away.  Likewise computer codes.  I'm not at all surprised that they're 
holding their IP close to the chest.


73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

David Gilbert wrote on 11/26/2021 8:45 AM:


I wish that Elecraft would make available the board layout, parts 
lists, etc that would allow somebody to replicate these boards. Even 
if nobody wanted to produce them commercially, there are a raft of 
prototype houses that would build a one-off version at a reasonable 
price ... at least "reasonable" compared with the alternative of 
having a mostly useless rig if you are a contester.


73,
Dave   AB7E




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Re: [Elecraft] Elecraft K1 VFO reading

[Brian Hunt]

I think what you are seeing is probably typical. I have a K1-4 that tunes down 
to 6988 and 13982 on 40 and 20 respectively. My tuning range is a little wider 
at 93 kHz. 

The Owner’s Manual has a detailed section on VFO alignment. If you didn’t get a 
manual with the radio you can probably download one from Elecraft. 

Good luck and have fun with this little beauty. 

73,
Brian, K0DTJ

> On Nov 26, 2021, at 12:18, Mike Smith VE9AA  wrote:
> 
> Just bought a K1..an oldie but a goodie, I guess.
> 
> NB board and 2 bands board (20/40) No tuner.
> 
> 
> 
> So, just playing around, getting familiarized with this new-to-me little rig
> before transmitting or hooking it up to a real antenna and I notice:
> 
> 
> 
> on 20m:  it tunes from 13.974MHz - 14.063MHz
> 
> 
> 
> and on it tunes from 40m from 6.980MHz-7.068MHz
> 
> 
> 
> When I transmit on a nearby rig or compare frequencies to DX cluster spots,
> just using a chunk of wire for an antenna, and listen for the various
> stations it looks like the VFO is reading pretty much bang on. 
> 
> 
> 
> So, is this a matter of incorrect components installed or a poor alignment
> or the (re)seller messing with the "CAL" in the menu or ??
> 
> 
> 
> I don't really want to mess with it too much, but I am missing 20-25kHz of
> usable bandwidth on each band. (seems like I have about 88kHz of tuning
> range, but 20-26kHz of it is below the bands---oof !)
> 
> 
> 
> Ideas?
> 
> 
> 
> TIA !
> 
> 
> 
> 73 Mike VE9AA  
> 
> 
> 
> Mike, Coreen & Corey
> 
> Keswick Ridge, NB
> 
> 
> 
> __
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> Message delivered to huntin...@coastside.net 

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Re: [Elecraft] Elecraft K1 VFO reading

[Louandzip via Elecraft]

 Mine that I built around 20 years ago tunes:
40m 6999.9 - 7088.820m 13994.2 - 14083.4

See page 28 of the manual.  The tuning range depends on the value of C2.  The 
range can be further adjusted by the number and spacing of turns on L1.
It would be a good idea to go through a complete alignment on the rig, 
especially to ensure RX offset agrees with with TX/displayed freq (C13, page 
47). 

Lou W7HV. 
On Friday, November 26, 2021, 01:19:42 PM MST, Mike Smith VE9AA 
 wrote:  
 
 Just bought a K1..an oldie but a goodie, I guess.

NB board and 2 bands board (20/40) No tuner.

 

So, just playing around, getting familiarized with this new-to-me little rig
before transmitting or hooking it up to a real antenna and I notice:

 

on 20m:  it tunes from 13.974MHz - 14.063MHz

 

and on it tunes from 40m from 6.980MHz-7.068MHz

 

When I transmit on a nearby rig or compare frequencies to DX cluster spots,
just using a chunk of wire for an antenna, and listen for the various
stations it looks like the VFO is reading pretty much bang on. 

 

So, is this a matter of incorrect components installed or a poor alignment
or the (re)seller messing with the "CAL" in the menu or ??

 

I don't really want to mess with it too much, but I am missing 20-25kHz of
usable bandwidth on each band. (seems like I have about 88kHz of tuning
range, but 20-26kHz of it is below the bands---oof !)

 

Ideas?

 

TIA !

 

73 Mike VE9AA  

 

Mike, Coreen & Corey

Keswick Ridge, NB

 

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[Elecraft] Elecraft K1 VFO reading

[Mike Smith VE9AA]

Just bought a K1..an oldie but a goodie, I guess.

NB board and 2 bands board (20/40) No tuner.

 

So, just playing around, getting familiarized with this new-to-me little rig
before transmitting or hooking it up to a real antenna and I notice:

 

on 20m:  it tunes from 13.974MHz - 14.063MHz

 

and on it tunes from 40m from 6.980MHz-7.068MHz

 

When I transmit on a nearby rig or compare frequencies to DX cluster spots,
just using a chunk of wire for an antenna, and listen for the various
stations it looks like the VFO is reading pretty much bang on. 

 

So, is this a matter of incorrect components installed or a poor alignment
or the (re)seller messing with the "CAL" in the menu or ??

 

I don't really want to mess with it too much, but I am missing 20-25kHz of
usable bandwidth on each band. (seems like I have about 88kHz of tuning
range, but 20-26kHz of it is below the bands---oof !)

 

Ideas?

 

TIA !

 

73 Mike VE9AA  

 

Mike, Coreen & Corey

Keswick Ridge, NB

 

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[Elecraft] Vibration noise from KPA500

[Dave]

Hello,

I have a KPA500, (working fine), however, at one, and only one, fan 
speed there is a resonant vibration coming out of the amp.  It is one 
speed above just starting...


It is also clearly a resonance vibration, not a PS hum.  It is also only 
present when the fan goes up one speed from whatever is the first speed.


Has anyone else experienced this, and if so, what was the fix?

--
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
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[Elecraft] Bug or a feature

[Rajiv Dewan]

I am trying to use cross band SO2V with my new K4D.

For instance, I have my VFO A set to the 20m band, and the VFO B set to 
the 40m band.


A/B (or B/A) does not work any more as the appropriate band filters are 
not selected.


(Split not working is somewhat understandable, but A/B not working is a 
bug in my mind.)


Raj, N2RD
--
Rajiv Dewan
rmde...@gmail.com
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Re: [Elecraft] Need K3 Board

[David Gilbert]

I wish that Elecraft would make available the board layout, parts lists, 
etc that would allow somebody to replicate these boards. Even if nobody 
wanted to produce them commercially, there are a raft of prototype 
houses that would build a one-off version at a reasonable price ... at 
least "reasonable" compared with the alternative of having a mostly 
useless rig if you are a contester.


73,
Dave   AB7E




On 11/26/2021 9:31 AM, Gary H. Harmon, Jr. wrote:

A good friend's K3 was damaged in a thunderstorm several months ago.  After
thinking it was repaired he now knows the KIO3B Digital IO Board is flaky.
Elecraft has none.  Anyone have a good one for sale?

  


Thanks and 73,

Gary H. Harmon, Jr. - K5JWK


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[Elecraft] Need K3 Board

[Gary H. Harmon, Jr.]

A good friend's K3 was damaged in a thunderstorm several months ago.  After
thinking it was repaired he now knows the KIO3B Digital IO Board is flaky.
Elecraft has none.  Anyone have a good one for sale?

 

Thanks and 73,

 

Gary H. Harmon, Jr. - K5JWK

HAM Radio, HEATHKIT, and ATARI Archaeologist

6003 Archwood

San Antonio, TX 78239-1504

(210) 657-1549 

(210) 884-6926 

ghar...@idworld.net

 

"Retirement = Every day is a Saturday except Sunday"

"Real radios glow in the dark"

"Too many projects, not enough time"

 

http://www.grissomroadcoc.org

 

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Re: [Elecraft] Background Noise with Mike Plugged in to Rear, , Mike Jack

[Jim Brown]

Hi Vic,

I'm quoting only the lead sentence for context, but ALL of this post is 
absolutely right! The only thing I would add is that proper bonding in 
the shack and in the home is also critical.


BTW -- you and I have been working each other since about 1957!

73, Jim K9YC (ex-W8FNI)

On 11/26/2021 12:10 AM, Victor Rosenthal 4X6GP wrote:
In my experience, the single most important factor in reducing RFI 
problems is to prevent RF from flowing back into the station via common 
mode current on the feedline.



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Re: [Elecraft] Background Noise with Mike Plugged in to Rear, , Mike Jack

[Victor Rosenthal 4X6GP]

In my experience, the single most important factor in reducing RFI 
problems is to prevent RF from flowing back into the station via common 
mode current on the feedline. This is easiest to do with balanced 
antennas. If they are coax-fed, then you need the appropriate choke at 
the feedpoint. And if the coax does not run perpendicular to the 
antenna, then a choke will probably be required at the entry to the 
shack as well.


Balanced antennas fed with balanced line like window line or open wire 
line work best with true balanced antenna tuners. The common practice of 
feeding a balanced line running a high SWR via an unbalanced tuner and a 
balun is less efficient both from the standpoint of power loss (the 
balun gets hot) and choking efficiency (the common mode current gets 
through).


An inherently unbalanced antenna, like an OCF dipole, also requires 
choking, but the demands on the choke(s) are higher.


RFI problems will vary according to the lengths of the feedlines and the 
band in use. A system that is clean on one band may be dirty on others 
if common mode currents aren't suppressed.


The time to apply ferrites is AFTER you have done the best possible job 
of reducing common mode currents, and after all your equipment is bonded 
together. I found that bonding my metal operating desk to the system helped.


73,
Victor, 4X6GP
Rehovot, Israel
CWops #5
Formerly K2VCO
https://www.qsl.net/k2vco/

On 26/11/2021 9:25, JR wrote:
Re - Bob, K4TAX,  on whether to use ferrite beads to solve station 
issues ...

___

Several years ago, when I was a new ham, Bob K4TAX encouraged me to 
solve RFI/EMI and other issues, instead of populating the station with 
ferrite beads, and this admonition has served me well ever since. Rather 
than toss toroids at a problem, I diligently determine the exact cause 
and fix it.  Sometimes it is something simple, such as routing a 
microphone and computer cables away from, and not parallel with, coax 
patch cables.  One time, it was as simple as cinching a coax connector 
up tight.   As an ersatz musician, I have a pile of audio and recording 
gear along with my ham station in the shack, and I suffer no issues on 
any front.  All too often, hams claim the problem is "RF in the shack" 
and toss ferrite toroids on every cable in the place, which masks or 
conceals, but does not solve, the problem.   Thanks, Bob, for pushing me 
to locate the real problem every time.  Do whatever diligence is due 
under the circumstances, and you will surely have better results.   K8JHR

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