Re: [Elecraft] K4 controlled by K3?

[Bob Wilson, N6TV]

On Tue, Jan 12, 2021, 3:15 PM weave...@usermail.com 
wrote:

Can the K3 (K3/0)  control the K4 remotely?


No, because the interface is too different.  A K4/0 is expected to provide
this capability.

73,
Bob, N6TV
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Re: [Elecraft] How to download firmware into K4

[Bob Wilson, N6TV]

Yes, you connect the K4 Ethernet port to your Router or Ethernet switch,
then software updates may be downloaded on demand direct from the Internet
by tapping Fn > UPDATE and following the prompts.

73,
Bob, N6TV
K4 Field Tester

On Tue, Jan 12, 2021, 2:19 PM Joseph Trombino, Jr 
wrote:

> Howdy Gang.
>
> Just went through a preliminary introduction to the K4 doc and didn’t see
> anything abut how to load new firmware into the K4.
>
> Is this where the Ethernet port comes into play?
>
> Any info appreciated.
>
> Take care, stay healthy and enjoy.
>
> 73, Joe W2KJ
> I QRP, therefore I am
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Re: [Elecraft] K4HD Availability Schedule

[Grant Youngman]

You have to REGISTER in order to get the Zoom meeting information, a slot for 
the meeting,  and a link to sign on.

Go to the Newsletter here:  https://mailchi.mp/elecraft/dec-2020-newsletter

Scroll down to "News and Updates", and you will see a brief description of the 
seminar and a blue button where you can register.

Grant NQ5T


> On Jan 13, 2021, at 10:31 PM, Ken B  wrote:
> 
> Could you.please share the zoom info.   My old eyes don't see as good as they 
> use to.   Remember I had a dianasour as a pet where as most people saw them 
> being drawn on the cave walls 
> 
> Sent from Yahoo Mail on Android
> 

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Re: [Elecraft] K4HD Availability Schedule

[Ken B via Elecraft]

Could you.please share the zoom info.   My old eyes don't see as good as they 
use to.   Remember I had a dianasour as a pet where as most people saw them 
being drawn on the cave walls 

Sent from Yahoo Mail on Android 
 
  On Wed, Jan 13, 2021 at 6:55 PM, Grant Youngman wrote:  
 It’s Friday week. The 22nd. 

Grant NQ5T

Sent from my iPhone

> On Jan 13, 2021, at 6:50 PM, Ken B via Elecraft  
> wrote:
> 
>  What meeting on Friday ? 
> 
>    On Wednesday, January 13, 2021, 05:47:36 PM EST, Paul Van Dyke 
> wrote:  
> 
> I would say that is a question for the Zoom meeting Friday
> 
> Paul Van Dyke    KB9AVO
> 
>> On Wed, Jan 13, 2021 at 11:55 AM w4sc  wrote:
>> 
>> Has estimated date of K4HD availability been revealed?  Been looking…….
>> 
>> Sent from Mail for Windows 10
>> 
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Re: [Elecraft] K3 AF/RF Gain unresponsive

[Mark Musick]

Mike,
What serial number is your K3?.
If it is an early serial number it could be corrosion on the front panel pins.

Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Mike March
Sent: Wednesday, January 13, 2021 22:40
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 AF/RF Gain unresponsive

The AF and RF Gain controls on my K3 fail to operate from time to time.
Powering off and on the rig seems to solve it (until it happens again).
Common problem?  Thanks.  Mike  K4QU
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Re: [Elecraft] Head Phones

[john]

This would be an easy choice for me. A week and a half ago I wore Sony
MDR-7506 headphones for 24 hours in the ARRL RTTY Roundup and there was
absolutely no discomfort plus they sound great.  I bought these years ago
after reading K9YC's comments and I never regretted it.

John KK9A  W4AAA in 2021 RTTY RU


Paul Ecker W2ECK Wrote:

Know this is a well worn out subject. But looking for a reasonably priced,
but comfortable set of headphones. Just the headphones, don't need a mic. A
set that is lightweight enough to wear for a few hours but reasonable
performance. Any recommendations?

73 Paul w2eck

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Re: [Elecraft] Head Phones

[Charlie T]

Yeah BUT.
The Sony's have much better high freq response.
I have severe hearing loss up in the treble range, where the harmonics of a
trumpet & snare drum as well as the ring of a Gibson Hummingbird reside.
The Yamaha's are good IF your hearing is normal, but I can tell a YUGE
difference using the MDR-7506's.


73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Jim Brown
Sent: Wednesday, January 13, 2021 5:02 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Head Phones

On 1/13/2021 1:38 PM, Clark Macaulay wrote:
> I've used Sony MDR-7506 and heartily recommend it.

Yes, very nice. BUT -- Yamaha CM500, which includes a mic and which I also
like a lot, is quite comfortable and about 2/3 the cost. The Sony is
considerably more ruggedly built; I own three pairs and I've never had a
failure. I've had un-repairble broken wiring in two CM500s.

73, Jim K9YC
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Re: [Elecraft] K4HD Availability Schedule

[Grant Youngman]

It’s Friday week. The 22nd. 

Grant NQ5T

Sent from my iPhone

> On Jan 13, 2021, at 6:50 PM, Ken B via Elecraft  
> wrote:
> 
>  What meeting on Friday ? 
> 
>On Wednesday, January 13, 2021, 05:47:36 PM EST, Paul Van Dyke 
>  wrote:  
> 
> I would say that is a question for the Zoom meeting Friday
> 
> Paul Van DykeKB9AVO
> 
>> On Wed, Jan 13, 2021 at 11:55 AM w4sc  wrote:
>> 
>> Has estimated date of K4HD availability been revealed?  Been looking…….
>> 
>> Sent from Mail for Windows 10
>> 
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Re: [Elecraft] K4HD Availability Schedule

[Ken B via Elecraft]

 What meeting on Friday ? 

On Wednesday, January 13, 2021, 05:47:36 PM EST, Paul Van Dyke 
 wrote:  
 
 I would say that is a question for the Zoom meeting Friday

Paul Van Dyke    KB9AVO

On Wed, Jan 13, 2021 at 11:55 AM w4sc  wrote:

> Has estimated date of K4HD availability been revealed?  Been looking…….
>
> Sent from Mail for Windows 10
>
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Re: [Elecraft] K3 ATU problem

[Keith Trinity WE6R]

If an ATU tune finishes like that, with --, then it did not find a 
match! (and will be in a random state).

You don't have enough power for a successful Tune.
Try running the TX gain calibration with the K3 Utility.

Or, with a dummy load, ATU in BYP, make sure TUN PWR is at "nor", then 
set pwr to 5.0 watts exactly and long press XMIT to send a carrier for 
several seconds. (That will do a manual tx gain cal on that freq).


Then engage ATU and do an ATU TUNE and it should find a match.
If the TX gain cal fails, something is wrong with the LPA.
Keith WE6R Elecraft Tech.
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Re: [Elecraft] Head Phones

[Louandzip via Elecraft]

 
My MDR-1506 are ~20 years old.  Love them.  Recently replaced the pads again.  
There are many many different ear pads available on Amazon. 
On Wednesday, January 13, 2021, 3:51:37 PM MST, JP Douglas 
 wrote:  
 
 
I’ve got a Sennheiser headphone as well, they rock!
Also have the Yamaha headset, it’s not as good for noise cancelling as the 
Senheiser but it does have the mic.
Unless I’m in a situation where I have to use a headset with mic, I always go 
for the Senheiser.

73 de Jose Douglas KB1TCD

> On Jan 13, 2021, at 5:06 PM, Bill Frantz  wrote:
> 
> I have had some Sennheiser noise canceling headphones for perhaps 10 years. 
> They are still going strong with no significant signs of wear.
> 
> They work well for public service events involving parades because they make 
> it possible to hear while a high school band is playing in your ear. (You 
> also need a noise canceling mic so others can hear you over the band.)
> 
> I've never found them to be uncomfortable, even on extended airplane trip, 
> where they reduce the cabin noise level. I use them even if I'm not listening 
> to anything just to reduce the noise level.
> 
> 73 Bill AE6JV
> 
> On 1/13/21 at 4:17 PM, ecke...@gmail.com (Paul Ecker) wrote:
> 
>> Know this is a well worn out subject. But looking for a reasonably priced,
>> but comfortable set of headphones. Just the headphones, don't need a mic. A
>> set that is lightweight enough to wear for a few hours but reasonable
>> performance. Any recommendations?
>> 
>> 73 Paul w2eck
> 
> ---
> Bill Frantz        | Re: Computer reliability, performance, and security:
> 408-348-7900      | The guy who *is* wearing a parachute is *not* the
> www.pwpconsult.com | first to reach the ground.  - Terence Kelly
> 
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Re: [Elecraft] Head Phones

[JP Douglas]

I’ve got a Sennheiser headphone as well, they rock!
Also have the Yamaha headset, it’s not as good for noise cancelling as the 
Senheiser but it does have the mic.
Unless I’m in a situation where I have to use a headset with mic, I always go 
for the Senheiser.

73 de Jose Douglas KB1TCD

> On Jan 13, 2021, at 5:06 PM, Bill Frantz  wrote:
> 
> I have had some Sennheiser noise canceling headphones for perhaps 10 years. 
> They are still going strong with no significant signs of wear.
> 
> They work well for public service events involving parades because they make 
> it possible to hear while a high school band is playing in your ear. (You 
> also need a noise canceling mic so others can hear you over the band.)
> 
> I've never found them to be uncomfortable, even on extended airplane trip, 
> where they reduce the cabin noise level. I use them even if I'm not listening 
> to anything just to reduce the noise level.
> 
> 73 Bill AE6JV
> 
> On 1/13/21 at 4:17 PM, ecke...@gmail.com (Paul Ecker) wrote:
> 
>> Know this is a well worn out subject. But looking for a reasonably priced,
>> but comfortable set of headphones. Just the headphones, don't need a mic. A
>> set that is lightweight enough to wear for a few hours but reasonable
>> performance. Any recommendations?
>> 
>> 73 Paul w2eck
> 
> ---
> Bill Frantz| Re: Computer reliability, performance, and security:
> 408-348-7900   | The guy who *is* wearing a parachute is *not* the
> www.pwpconsult.com | first to reach the ground.  - Terence Kelly
> 
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Re: [Elecraft] K4HD Availability Schedule

[Paul Van Dyke]

I would say that is a question for the Zoom meeting Friday

Paul Van DykeKB9AVO

On Wed, Jan 13, 2021 at 11:55 AM w4sc  wrote:

> Has estimated date of K4HD availability been revealed?  Been looking…….
>
> Sent from Mail for Windows 10
>
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[Elecraft] K3 AF/RF Gain unresponsive

[Mike March]

The AF and RF Gain controls on my K3 fail to operate from time to time.
Powering off and on the rig seems to solve it (until it happens again).
Common problem?  Thanks.  Mike  K4QU
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Re: [Elecraft] Head Phones

[Walter Underwood]

The Sony is fine for listening to music, so it should be fine for speech or CW. 
I tried my Yamaha CM500s for music after my Grado SR-60 headphones finally 
died, and the Yamaha phones were unlistenable. I went back to Apple ear buds 
until I got new Grados. OK for speech, but not good enough for music.

The Sony MDR-V6 has fairly flat response, the MDR-7506 has an upper midrange 
(presence) boost. Get the one that is on sale.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jan 13, 2021, at 2:02 PM, Jim Brown  wrote:
> 
> On 1/13/2021 1:38 PM, Clark Macaulay wrote:
>> I've used Sony MDR-7506 and heartily recommend it.
> 
> Yes, very nice. BUT -- Yamaha CM500, which includes a mic and which I also 
> like a lot, is quite comfortable and about 2/3 the cost. The Sony is 
> considerably more ruggedly built; I own three pairs and I've never had a 
> failure. I've had un-repairble broken wiring in two CM500s.
> 
> 73, Jim K9YC
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Re: [Elecraft] Head Phones

[Bill Frantz]

I have had some Sennheiser noise canceling headphones for 
perhaps 10 years. They are still going strong with no 
significant signs of wear.


They work well for public service events involving parades 
because they make it possible to hear while a high school band 
is playing in your ear. (You also need a noise canceling mic so 
others can hear you over the band.)


I've never found them to be uncomfortable, even on extended 
airplane trip, where they reduce the cabin noise level. I use 
them even if I'm not listening to anything just to reduce the 
noise level.


73 Bill AE6JV

On 1/13/21 at 4:17 PM, ecke...@gmail.com (Paul Ecker) wrote:


Know this is a well worn out subject. But looking for a reasonably priced,
but comfortable set of headphones. Just the headphones, don't need a mic. A
set that is lightweight enough to wear for a few hours but reasonable
performance. Any recommendations?

73 Paul w2eck


---
Bill Frantz| Re: Computer reliability, performance, and security:
408-348-7900   | The guy who *is* wearing a parachute is 
*not* the

www.pwpconsult.com | first to reach the ground.  - Terence Kelly

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Re: [Elecraft] Head Phones

[Logan R Zintsmaster]

I wear a pair of the Sony 7506 headphones on a regular basis for several hours 
at a time. Very comfortable and sound good. 

Logan, KE7AZ 

Entropy is winning. 

> On Jan 13, 2021, at 2:38 PM, Clark Macaulay  wrote:
> 
> Paul,
> 
> I've used Sony MDR-7506 and heartily recommend it. Like you, I don't need a
> mic, so these were a cut above the lower priced spread.
> 
> 
> Virus-free.
> www.avast.com
> 
> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> 
>> On Wed, Jan 13, 2021 at 4:19 PM Paul Ecker  wrote:
>> 
>> Know this is a well worn out subject. But looking for a reasonably priced,
>> but comfortable set of headphones. Just the headphones, don't need a mic. A
>> set that is lightweight enough to wear for a few hours but reasonable
>> performance. Any recommendations?
>> 
>> 73 Paul w2eck
>> __
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>> 
> 
> 
> -- 
> 73,
> 
> Clark, WU4B
> Little Pistol With Wires
> QRPARCI #10815
> SKCC #3892
> NAQCC #5055
> CWOPS #1869
> Collins Collectors #AC90-12432
> Southeastern DX Club 
> North Georgia QRP Club 
> 
> 
> *"It is vain to do with more what can be done with less."*
> *Attributed to *William of Occam (1288 AD - 1348 AD)
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Re: [Elecraft] Head Phones

[Jim Brown]

On 1/13/2021 1:38 PM, Clark Macaulay wrote:

I've used Sony MDR-7506 and heartily recommend it.


Yes, very nice. BUT -- Yamaha CM500, which includes a mic and which I 
also like a lot, is quite comfortable and about 2/3 the cost. The Sony 
is considerably more ruggedly built; I own three pairs and I've never 
had a failure. I've had un-repairble broken wiring in two CM500s.


73, Jim K9YC
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Re: [Elecraft] Head Phones

[Clark Macaulay]

Paul,

I've used Sony MDR-7506 and heartily recommend it. Like you, I don't need a
mic, so these were a cut above the lower priced spread.


Virus-free.
www.avast.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Wed, Jan 13, 2021 at 4:19 PM Paul Ecker  wrote:

> Know this is a well worn out subject. But looking for a reasonably priced,
> but comfortable set of headphones. Just the headphones, don't need a mic. A
> set that is lightweight enough to wear for a few hours but reasonable
> performance. Any recommendations?
>
> 73 Paul w2eck
> __
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> Message delivered to clark.macau...@gmail.com
>


-- 
73,

Clark, WU4B
Little Pistol With Wires
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club 
North Georgia QRP Club 


*"It is vain to do with more what can be done with less."*
*Attributed to *William of Occam (1288 AD - 1348 AD)
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[Elecraft] Head Phones

[Paul Ecker]

Know this is a well worn out subject. But looking for a reasonably priced,
but comfortable set of headphones. Just the headphones, don't need a mic. A
set that is lightweight enough to wear for a few hours but reasonable
performance. Any recommendations?

73 Paul w2eck
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Re: [Elecraft] K3 ATU problem

[Fred Jensen]

First thought, is your ATU is in bypass?  Is the "ATU" icon showing 
below the 4th digit of VFO A display?


73,

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

On 1/13/2021 6:43 AM, Eric Rosenberg wrote:
When I tap ATU TUNE, I hear the relays clicking, see no output from 
the radio.  The op right corner of the screen shows  "--"


When I then transit, it appears that the SWR hasn't changed... the 
tuner hasn't actually done anything,


Is there a way to troubleshoot this?

Thanks & 73,
Eric W3DQ
Washington, DC


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Re: [Elecraft] KRC2

[Paul GACEK via Elecraft]

Hi Geert 

Irrespective of Elecraft support position I have successfully run the code on 
Windows 10 PCs.

Here is my build and couple of snaps of it running on windows 10.

https://nomadic.blog/2019/01/07/suitcase-dxpedition-station-automation-step-1-the-elecraft-krc2/

Paul
W6PNG/M0SNA 

> On Jan 13, 2021, at 6:25 AM, Geert Jan de Groot  wrote:
> 
> 
>> Tom - I will give you some unsolicited advice-
> 
> Another point of consideration is that the KRC2 is programmable, but the 
> programming code is old and doesn't run on today's platforms.
> 
> "KRC2 Firmware Loader Supported Platforms Available for Windows 98, 2000, ME, 
> XP" - that's a while back.
> 
> I understand if Elecraft doesn't want to maintain these and wants to focus on 
> newer products, but publishing the interface would allow someone else to step 
> up and create a new tool. And today's new product will be obsolete in the 
> future, and having interfaces published increases the value of the product.
> 
> Geert Jan
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[Elecraft] K4HD Availability Schedule

[w4sc]

Has estimated date of K4HD availability been revealed?  Been looking…….

Sent from Mail for Windows 10

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[Elecraft] SSB Net 1-10-2021

[Eric Lanzl]

List of stations checking in to the 20m net. Thank you to the relay stations. 

20m net meets on Sundays at 1800Z on 14.303.5 alternate around 14.31040m net 
meets at 1900Z on 728075m net meets at 0100Z on 3817All stations are welcome to 
join the net. WB0JNZ


Call  Name    State  Radio    Serial #  QRP 
    Notes

WB9JNZ    Eric IL   K3  
4017      NetControl

K8NU Carl OH K3S    
10996  

NC0JW  Jim  CO KX3   
1356    RelayStation

WM6P    Steve   GA K3S    
11453  RelayStation

K1NW    Brian   RI   K3 
 4974    
RelayStation

KB9AVO   Paul    IN   K3S    
11103  

K2VJK   Vern   NY K3S    
10151  

K7BRR   Bill  AZ  Yaesu 
FTDX101MP     

N6PGQ  Bob CA K3  
5891    

AE6JV   Bill  NH K3 
 6299    

W7QHD Kurt    AZ  K3  
6388    

NS7P  Phil OR K3
  1826    
RelayStation

ZL1PWD    Peter   NZ  K3  
139  

AB7CE   Roy MT K2/100   40  
  

AA5R Droy   TX  Flex    
6600    

N7YW    Ken AZ  K3  
8183    

KS6F  Guy    CA K3S    
10650  

W9EJB   Ken IN   K3 
 1593    

N0MPM Mike   IA   K3S    
10514  

NK9A Stan    MI  Yaesu 
757  

AD1G    Dick    MA    K3  
3782    

KE7HGE    Ken WA    KX3/QRP  4540   
     

K9YEQ  Bill  WI  K3S    
11410  

K6VWE  Stan    MI  K3  
650  

AA7NN Doug  WA    Icom   756 
Pro    

WN8A    Jim  MI  K3 
 3480   1st Time check in  

VA6ORO   Mike   AB Icom   7300  
  

KA6MOK  John    CA K2  1251 
  QRP 

K8DSS   Ed   FL  KX2   
3085    

WB2MSB  Maruy VT  Icom   718
  

KC9JXJ  Hy  IL   Kenwood    
590SG      

[Elecraft] ATU in K3

[w5sum]

I have a pair of K3's.  One is my main station hooked to a KPA1500 and is 
used to reach out and snag the hard to get DX stations.  The other K3 is 
pretty much dedicated to Digital Operations.  BOTH have the built in ATU.


I am daily impressed with the built in atu's.  I have several different 
external auto tuners, and with the exception of my Palstar HFAuto, the 
internal atu's in the K3's will outperform the other external atu's on 
virtually every type of weird wire antenna I play with.  The other external 
ATU's just simply cannot tune them (again, with the exception of the HF 
Auto)


Thanks Elecraft.. for the fine job..   You folks are simply amazing.

Ronnie W5SUM 


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Re: [Elecraft] KRC2

[Gordon LaPoint]

I use the KRC2 programing software on Win10, pro an home, on two sites 
and it works fine.

Gordon - N1MGO

On 1/13/2021 9:24 AM, Geert Jan de Groot wrote:



Tom - I will give you some unsolicited advice-


Another point of consideration is that the KRC2 is programmable, but 
the programming code is old and doesn't run on today's platforms.


"KRC2 Firmware Loader Supported Platforms Available for Windows 98, 
2000, ME, XP" - that's a while back.


I understand if Elecraft doesn't want to maintain these and wants to 
focus on newer products, but publishing the interface would allow 
someone else to step up and create a new tool. And today's new product 
will be obsolete in the future, and having interfaces published 
increases the value of the product.


Geert Jan
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[Elecraft] K3 ATU problem

[Eric Rosenberg]

When I tap ATU TUNE, I hear the relays clicking, see no output from the 
radio.  The op right corner of the screen shows  "--"


When I then transit, it appears that the SWR hasn't changed... the tuner 
hasn't actually done anything,


Is there a way to troubleshoot this?

Thanks & 73,
Eric W3DQ
Washington, DC
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Re: [Elecraft] KRC2

[Geert Jan de Groot]

Tom - I will give you some unsolicited advice-


Another point of consideration is that the KRC2 is programmable, but the 
programming code is old and doesn't run on today's platforms.


"KRC2 Firmware Loader Supported Platforms Available for Windows 98, 
2000, ME, XP" - that's a while back.


I understand if Elecraft doesn't want to maintain these and wants to 
focus on newer products, but publishing the interface would allow 
someone else to step up and create a new tool. And today's new product 
will be obsolete in the future, and having interfaces published 
increases the value of the product.


Geert Jan
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Re: [Elecraft] KPA1500 goes into firmware load

[rocketnj]

I use the Wake on LAN packet via Ethernet to turn on my KPA1500. This is sent 
from a flow I wrote in Node Red running on a Raspberry Pi. It allows me control 
and monitoring of the amp (meters, power on/off, op/standby, ant 1/2) from any 
web browser, including smartphones with two factor authentication.
Using this method I have not had the KPA1500 go into firmware upload mode.

73
Dave wo2x


-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Gary Johnson
Sent: Tuesday, January 12, 2021 6:34 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500 goes into firmware load

Dick has pointed me at the mechanism. I had forgotten that the REM input is fed 
from the K3 12V output, and that is what turns the amp on. If that input is at 
12V when applying 240V, you go into firmware load. 

So a slight mystery remains, as reported by others, that this sometimes occurs 
for no apparent reason, at times when we’re "pretty sure" the 240V is already 
on.  When dead-starting and turning on the 240V, I always wait a few sec before 
turning on the K3 remotely. But sometimes it comes up in firmware load anyway. 
Thankfully this is always recoverable.

FYI: You can also turn on a KPA1500 or 500 by pulsing a line in the Aux bus via 
a K3 macro. Info on this is on p. 21 of the K3 Remote Owner's Manual.

Gary NA6O


>On Jan 12, 2021, at 11:23 AM, Dick Dievendorff  wrote:

If you have 12v on the KPA1500 REM line when the KPA1500 AC lower is turned on, 
it interprets this as a hold down of a power button, causing entry into the 
firmware loader.  Do you have anything connected to the KPA1500 REM RCA 
connector?

73 de Dick, K6KR

>>On Jan 12, 2021, at 11:16, Gary Johnson  wrote:

We have a K3 and KPA1500 at a remote site. The KPA has 240V applied to it all 
the time, and actually turns on with the K3 via the Aux Bus. We use the remote 
control application via Ethernet. Works great. Occasionally, the amp won’t turn 
on, and when we investigate, it’s in the firmware load state. The KPA1500 
Utility is then able to reload it via USB, and we’re operational again. Nothing 
on the computer should be accessing its USB port to cause it to go into that 
state. I have noticed that if we cycle the 240V power, sometimes that will put 
it in firmware load as well. Is there a common cause here?

-Gary NA6O
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