Re: [Elecraft] Elecraft T1 Tuner Issue

[Paul Jewell via Elecraft]

Hi Thomas,

I didn't solve it yet, but I haven't given up. I'm in Finland working at the 
moment, but will be home tomorrow - I'll find and forward the email I had from 
Elecraft giving some pointers about where to look.

Best regards,
Paul

24 Aug 2022 06:06:36 Tomas Bystrican :

> Hi Paul,
> 
> I m having the same issue with T1, the yellow led flashes in 4 flashes and 
> the unit won't turn off.
> It also struggles to run the tuning sometimes and I have to remove the 
> battery and start again.
> 
> Did you by any chance manage to solve the issue ?
> 
> THank you.
> 
> 
> 
> 
> 
> Kind regards,
> Tomas Bystrican
> 
> 
__
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 arch...@mail-archive.com 

Re: [Elecraft] [POSSIBLE SPAM] [K3] KIO3 failure mode

[Dr. William J. Schmidt]

Reverse engineered or just a better/ more modern design?  

 

 

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Al Lorona
Sent: Tuesday, August 23, 2022 4:06 PM
To: Elecraft Reflector 
Subject: [POSSIBLE SPAM] [Elecraft] [K3] KIO3 failure mode

 

Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
being struck by lightning might have what's necessary for a very lucrative 
business. Actually, I'm surprised that the board hasn't already been reverse 
engineered in China, enabling an aftermarket for KIO3 replacements. I bet 
everybody on this reflector living east of the Rockies would buy two of them in 
anticipation of future thunderstorms. Al  W6LX/4

 

__

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  
 b...@wjschmidt.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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Drew AF2Z]

Yep, series mode protectors. Got a few of them. But when tstms threaten, 
*everything* gets disconnected from the K3/K4, including headphones, key 
and speakers.


73,
Drew
AF2Z



On 08/23/22 18:07, Jim Brown wrote:

On 8/23/2022 2:47 PM, David Gilbert wrote:
If I remember correctly, the laptop power supply was even plugged into 
a quality surge protected UPS.


MOV Surge protectors short the phase and neutral conductors to the green 
wire in the event of a surge. In the event of a strike, the IR drop in 
the green wire raises the potential of the computer. It's common for the 
potential difference between the computer and the chassis of anything to 
which it's connected to fry either or both units. This is why MOV surge 
protectors are a bad idea -- in systems where interconnected components 
are powered from MOVs at different outlets, or to equipment that's 
grounded, they are as likely to CAUSE destructive failures as to protect 
anything.


We learned about this in the world of large sound systems more than 
twenty years ago, started using series-mode surge protectors, which 
store the surge in a very large inductor, then discharge it slowly. A 
company called SurgeX, for whom I did some tech writing and teaching at 
trade shows, licensed the patent for the pro audio market; two other 
companies licensed it for the computer world and home entertainment 
world respectively.


73, Jim K9YC
__
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 pu...@af2z.net

__
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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Jim Brown]

On 8/23/2022 2:47 PM, David Gilbert wrote:
If I remember correctly, the laptop power supply was even plugged into a 
quality surge protected UPS.


MOV Surge protectors short the phase and neutral conductors to the green 
wire in the event of a surge. In the event of a strike, the IR drop in 
the green wire raises the potential of the computer. It's common for the 
potential difference between the computer and the chassis of anything to 
which it's connected to fry either or both units. This is why MOV surge 
protectors are a bad idea -- in systems where interconnected components 
are powered from MOVs at different outlets, or to equipment that's 
grounded, they are as likely to CAUSE destructive failures as to protect 
anything.


We learned about this in the world of large sound systems more than 
twenty years ago, started using series-mode surge protectors, which 
store the surge in a very large inductor, then discharge it slowly. A 
company called SurgeX, for whom I did some tech writing and teaching at 
trade shows, licensed the patent for the pro audio market; two other 
companies licensed it for the computer world and home entertainment 
world respectively.


73, Jim K9YC
__
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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Jim Brown]

On 8/23/2022 2:15 PM, David Gilbert wrote:
That little board seems to have by far the poorest reliability history 
of anything in the K3.


I can think of two reasons. First, cable shields are not bonded to the 
chassis at the point of entry; instead, they are capacity-coupled, and I 
suspect that the board itself is not well bonded to the chassis. Second, 
far too many hams fail to do proper bonding in the shack and on the 
operating desk.


73, Jim K9YC
__
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 arch...@mail-archive.com 

Re: [Elecraft] Any progress on K3 modules?

[Ed Cole]

Howard-WA4PSC. and all:

Just had a personal experience that show this:  I ordered 15 ferrite 
beads in an order to Digi-Key on April-18, this year.  They were 
back-ordered  an I received notice they are shipping them, today!  Only 
a four month delay.  Good thing I hadn't started on that 1200w amplifier 
kit, yet.


73, Ed - KL7uW
__
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 arch...@mail-archive.com 

Re: [Elecraft] Looking for a KIO3 board.

[Larry Shapiro]

I will look tonight and see if I have one?
Larry k6ro

www.LSRarecoins.com
310-710-2869

> On Aug 23, 2022, at 1:33 PM, Robert Hayes via Elecraft 
>  wrote:
> 
> Hello Elecraft users,
> Lightning struck the SW tower here on Sunday afternoon.  Among many other 
> things, it blew out the KIO3 RS-232 serial interface on one of my K3's in the 
> process.Does anyone have one available?
> 73 Bob KW8N  (k...@aol.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 k6r...@gmail.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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Chuck via Elecraft]

A local ham friend had most electronics in his house destroyed by 
lightningnot a direct hit, but one where his ground returns 
provided a path.  We have some of the worst lightning storms in the USA 
(Central Florida) and its a daily chase to make sure as much of our gear is not 
connected during the daily T-storms.  There are some who are beginning to 
disconnect the RF and Electrical grounding of their gear due to the nature of 
lightning and its ability to find a route to true ground.  Tough stuff, this 
lightning!  I hope each of us does the best we can to minimize our exposure to 
the effects of a lightning discharge.  Good luck to us all after we've done our 
best to disconnect from all sources of lightning intervention.
Best 73 to all.
ChuckW4MIL




-Original Message-
From: David Gilbert 
To: cemil...@aol.com; elecraft@mailman.qth.net 
Sent: Tue, Aug 23, 2022 5:47 pm
Subject: Re: [Elecraft] [K3] KIO3 failure mode

  
 
 When my KIO3 got zapped, I had everything disconnected.  Antenna and all 
accessories from the K3 ... power supply as well.  The one thing I didn't have 
disconnected was the RS-232 link between the laptop and the KIO3.  Somehow a 
transient from a nearby lightning strike (not a direct one to my tower) 
traveled through the laptop power brick and to an otherwise completely floating 
K3.  If I remember correctly, the laptop power supply was even plugged into a 
quality surge protected UPS.
 
 It takes very little to zap the KIO3.  I now disconnect EVERYTHING in the 
shack during lightning season.
 
 I was able to get a replacement set of KIO3 boards from Don, and even in that 
case the audio board I got from him was blown.  Luckily my original audio board 
was OK and all I had to do was replace the RS-232 board.  I don't know what I 
would do if the KIO3 goes south again since the primary use of my K3 is for 
contesting and I absolutely need connection to the logger for that.
 
 Dave   AB7E
 
  
 
 On 8/23/2022 2:31 PM, cemil...@aol.com wrote:
  
 Not owning a K3, but have the KX3..and other rigs!  Perhaps 
disconnecting the antenna (before and during an electrical storm)  from the 
shack hardware makes little boards like the K103 enjoy a longer life.  Just 
suggesting.  No disrespect in this comment. 
  73 Chuck W4MIL
 
 
 -Original Message-
 From: David Gilbert 
 To: elecraft@mailman.qth.net
 Sent: Tue, Aug 23, 2022 5:15 pm
 Subject: Re: [Elecraft] [K3] KIO3 failure mode
 
 
  
  Yes, for sure.  That little board seems to have by far the poorest 
  reliability history of anything in the K3.
  
  Dave   AB7E
  
  
  On 8/23/2022 2:05 PM, Al Lorona wrote:
  > Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
being struck by lightning might have what's necessary for a very lucrative 
business.
  > Actually, I'm surprised that the board hasn't already been reverse 
engineered in China, enabling an aftermarket for KIO3 replacements. I bet 
everybody on this reflector living east of the Rockies would buy two of them in 
anticipation of future thunderstorms.
  > Al  W6LX/4
  >
  > __
  > 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 ab7e...@gmail.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 cemil...@aol.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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Udo Langenohl - DK5YA]

Even in Europe (east of the Rockies somewhat...). Got still 2 spares in 
the box for my three K3's. There's a reason.

Udo DK5YA

Am 23.08.2022 um 23:05 schrieb Al Lorona:

Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
being struck by lightning might have what's necessary for a very lucrative 
business.
Actually, I'm surprised that the board hasn't already been reverse engineered 
in China, enabling an aftermarket for KIO3 replacements. I bet everybody on 
this reflector living east of the Rockies would buy two of them in anticipation 
of future thunderstorms.
Al  W6LX/4

__
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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[David Gilbert]

When my KIO3 got zapped, I had everything disconnected.  Antenna and all 
accessories from the K3 ... power supply as well.  The one thing I 
didn't have disconnected was the RS-232 link between the laptop and the 
KIO3.  Somehow a transient from a nearby lightning strike (not a direct 
one to my tower) traveled through the laptop power brick and to an 
otherwise completely floating K3.  If I remember correctly, the laptop 
power supply was even plugged into a quality surge protected UPS.


It takes very little to zap the KIO3.  I now disconnect EVERYTHING in 
the shack during lightning season.


I was able to get a replacement set of KIO3 boards from Don, and even in 
that case the audio board I got from him was blown.  Luckily my original 
audio board was OK and all I had to do was replace the RS-232 board.  I 
don't know what I would do if the KIO3 goes south again since the 
primary use of my K3 is for contesting and I absolutely need connection 
to the logger for that.


Dave   AB7E



On 8/23/2022 2:31 PM, cemil...@aol.com wrote:
Not owning a K3, but have the KX3..and other rigs! Perhaps 
disconnecting the antenna (before and during an electrical storm)  
from the shack hardware makes little boards like the K103 enjoy a 
longer life.  Just suggesting.  No disrespect in this comment.


73
Chuck
W4MIL


-Original Message-
From: David Gilbert 
To: elecraft@mailman.qth.net
Sent: Tue, Aug 23, 2022 5:15 pm
Subject: Re: [Elecraft] [K3] KIO3 failure mode



Yes, for sure.  That little board seems to have by far the poorest
reliability history of anything in the K3.

Dave   AB7E


On 8/23/2022 2:05 PM, Al Lorona wrote:
> Ah, lightning. Whoever performs an analysis of the KIO3 failure mode 
after being struck by lightning might have what's necessary for a very 
lucrative business.
> Actually, I'm surprised that the board hasn't already been reverse 
engineered in China, enabling an aftermarket for KIO3 replacements. I 
bet everybody on this reflector living east of the Rockies would buy 
two of them in anticipation of future thunderstorms.

> Al  W6LX/4
>
> __
> 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 ab7e...@gmail.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 cemil...@aol.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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[Chuck via Elecraft]

Not owning a K3, but have the KX3..and other rigs!  Perhaps 
disconnecting the antenna (before and during an electrical storm)  from the 
shack hardware makes little boards like the K103 enjoy a longer life.  Just 
suggesting.  No disrespect in this comment.
73ChuckW4MIL


-Original Message-
From: David Gilbert 
To: elecraft@mailman.qth.net
Sent: Tue, Aug 23, 2022 5:15 pm
Subject: Re: [Elecraft] [K3] KIO3 failure mode



Yes, for sure.  That little board seems to have by far the poorest 
reliability history of anything in the K3.

Dave   AB7E


On 8/23/2022 2:05 PM, Al Lorona wrote:
> Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
> being struck by lightning might have what's necessary for a very lucrative 
> business.
> Actually, I'm surprised that the board hasn't already been reverse engineered 
> in China, enabling an aftermarket for KIO3 replacements. I bet everybody on 
> this reflector living east of the Rockies would buy two of them in 
> anticipation of future thunderstorms.
> Al  W6LX/4
>
> __
> 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 ab7e...@gmail.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 cemil...@aol.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 arch...@mail-archive.com 

[Elecraft] KX3 and its "TUNE" selection. (With mag loop)

[Geoffrey Feldman]

If your antenna is a magloop - DO NOT USE the tune button. In fact, clear
the tuner memory for your band per instructions.   The tuner feature
(assuming you have the option) is great with other antennas, especially
random wire but it doesn't go well with mag loops.  The xmit button is
simply "PTT".

 

For any mag loop, choose a frequency you wish to start work, somewhere in
the middle of the band.  Mag Loops are high Q antennas, that is they are
effective in a very narrow range of frequencies to which they are adjusted
with the tuning box.  This fact should inform your thoughts on effective
use.

Turn the tuning dial (ON THE MAG LOOP) until you hear the maximum amount of
noise (or blessed with a real signal).   The antenna and the radio are now
tuned.

Turn the KX3 tuning knob SLOWLY until you hear some kind of interesting
signal.  (PX3 is great for this too).  

Tweak the tuning knob on the mag loop to get the strongest signal for your
exact frequency. (just a tweak).   This is important even if you hear the
signal, to get the most efficient use of transmitter.

If while seeking a station you hear a lot less static, adjust the mag loop
as above.

 

IF seeking up and down the band, just rinse and repeat as above until you
get a station to work.

 

Once the mag loop is tuned to the band, you won't have to adjust it much to
tune it for the particular part of the band you are on. Gentle tweaks is the
way.  Notice too, mag loops are very directional. Consult the manufacturing
manual for where it's sensitive and turn it along a great circle to where
you want to go.  (In Boston, where I live, Europe is north east by great
circle.

 

I note there is something about tuning the radio in some mag loop
instructions.  I find this not necessary with the KX3.  What I describe here
is what I do and it works well.

 

I have contacted Europe USB with a KX3 at 15 watts and a mag loop.  The
antenna was on the top floor of my wood frame town house for this, not even
outdoors.  If you think about what I wrote, you want the antenna in arm's
length while working the radio.  Don't worry about your body affecting the
near field. Mag Loops are not like that.

 

-73-

W1GCF

Geoff

__
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 arch...@mail-archive.com 

Re: [Elecraft] KX3 and its "TUNE" selection.

[Fred Jensen]

Jerry:  Just in case you are not [yet] aware ... Small so-called 
"magnetic loops" must be exactly resonant meaning that you go to TUNE 
mode [i.e. feeding power to the loop] and then adjust the loop for exact 
resonance.  While exact resonance is indicated by zero reactance looking 
into the feedline, min SWR will usually work pretty good.  But it really 
has to be at the minimum which is often quite sharp.  Getting the loop 
tuning close, and then letting the ATU do the rest is a very quick way 
to create a dummy load.


73,

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

Lee Hiers wrote on 8/23/2022 1:18 PM:

1) the KX3
2) it's just a carrier

You can ID either before or after the Tune process.

73 de Lee, AA4GA



On Tue, Aug 23, 2022 at 4:07 PM JEROME SODUS  wrote:


Hello,

Yesterday, I was re-reading the KX3-manual to prepare for putting into use
a magnetic-loop-antenna.

The KX3 manual, on page 14, has this wording "TUNE is used to put out a CW
signal at the power level selected by the PWR control.".
This is new territory for me as I have never have used  "TUNE" or "XMIT"
button.

Neither the manual nor the great book "The Elecraft KX3-Portable" by Fred
KE7X (SK) have answers to my questions, which are:
1. From where does this CW signal come?
2. What information is in that CW signal?
The concern I have is the CW signal will get out from my mag-loop-antenna
into the "ether", so my call-sign needs to be there to satisfy the FCC.

TIA for any assistance.
73 jerry km3k KX3#6088
__
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 lee.hi...@gmail.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 k6dg...@gmail.com




--
This email has been checked for viruses by AVG antivirus software.
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 arch...@mail-archive.com 

Re: [Elecraft] [K3] KIO3 failure mode

[David Gilbert]

Yes, for sure.  That little board seems to have by far the poorest 
reliability history of anything in the K3.


Dave   AB7E


On 8/23/2022 2:05 PM, Al Lorona wrote:

Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
being struck by lightning might have what's necessary for a very lucrative 
business.
Actually, I'm surprised that the board hasn't already been reverse engineered 
in China, enabling an aftermarket for KIO3 replacements. I bet everybody on 
this reflector living east of the Rockies would buy two of them in anticipation 
of future thunderstorms.
Al  W6LX/4

__
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 ab7e...@gmail.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 arch...@mail-archive.com 

[Elecraft] [K3] KIO3 failure mode

[Al Lorona]

Ah, lightning. Whoever performs an analysis of the KIO3 failure mode after 
being struck by lightning might have what's necessary for a very lucrative 
business. 
Actually, I'm surprised that the board hasn't already been reverse engineered 
in China, enabling an aftermarket for KIO3 replacements. I bet everybody on 
this reflector living east of the Rockies would buy two of them in anticipation 
of future thunderstorms. 
Al  W6LX/4

__
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 arch...@mail-archive.com 

Re: [Elecraft] Problem with KAT500 firmware v. 2.05

[Bill Mader]

While this may be an old thread, I have an input which could be interesting
to some.  I recently noticed the KAT500 I am currently using had V1.75 of
the firmware installed.  I use it with an IC-7610 and trained it on each HF
band, placed the MODE switch in MAN and tuned it for the FT8 frequencies.
This worked well until I updated the firmware to V2.05.

After that, the KAT500 failed to use the memorized tuning solutions even
though its frequency counter correctly identified the frequency.  It would
operate in AUTO mode but the tuning took too long for my purposes.  I
reverted the firmware to V1.75 and it performed as it should.

The question is why does V2.05 appear to ignore what should be memorized
tuning solutions?

73, Bill Mader, K8TE
ARRL New Mexico Section Manager
*ARRL - The national association for Amateur Radio**™*
Secretary/Treasurer and Past President, Albuquerque DX Association
W6H NM Coordinator, Route 66 On-the-Air 10-18 Sep 2022
New Mexico QSO Party 8 Apr 2023
Duke City Hamfest Chairman www.dukecityhamfest.org 15-17 Sep 2023
__
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 arch...@mail-archive.com 

[Elecraft] Looking for a KIO3 board.

[Robert Hayes via Elecraft]

Hello Elecraft users,
Lightning struck the SW tower here on Sunday afternoon.  Among many other 
things, it blew out the KIO3 RS-232 serial interface on one of my K3's in the 
process.Does anyone have one available?
73 Bob KW8N  (k...@aol.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 arch...@mail-archive.com 

Re: [Elecraft] KX3 and its "TUNE" selection.

[Julia Tuttle]

Hi Jerry,

The CW signal from TUNE (or ATU TUNE) is *truly* continuous, not pulsed on
and off to spell things in Morse. It's like holding down a straight key,
except it's a toggle so you still have both hands free. As Lee noted, you
can ID before or after tuning, or just roll it into your next transmission
on the same frequency.

In CW mode, the KX3 can be keyed by a key, paddles, keyer memory, or serial
port. If VOX is on, the rig always transmits when keyed. If VOX is off,
XMIT manually toggles whether the rig transmits when keyed. The latter is
useful if you're operating on a crowded desk and bumping the key or paddle
between transmissions is a possibility.

73,

Julie

On Tue, Aug 23, 2022 at 4:08 PM JEROME SODUS  wrote:

> Hello,
>
> Yesterday, I was re-reading the KX3-manual to prepare for putting into use
> a magnetic-loop-antenna.
>
> The KX3 manual, on page 14, has this wording "TUNE is used to put out a CW
> signal at the power level selected by the PWR control.".
> This is new territory for me as I have never have used  "TUNE" or "XMIT"
> button.
>
> Neither the manual nor the great book "The Elecraft KX3-Portable" by Fred
> KE7X (SK) have answers to my questions, which are:
> 1. From where does this CW signal come?
> 2. What information is in that CW signal?
> The concern I have is the CW signal will get out from my mag-loop-antenna
> into the "ether", so my call-sign needs to be there to satisfy the FCC.
>
> TIA for any assistance.
> 73 jerry km3k KX3#6088
> __
> 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
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 arch...@mail-archive.com 

Re: [Elecraft] KX3 and its "TUNE" selection.

[Lee Hiers]

1) the KX3
2) it's just a carrier

You can ID either before or after the Tune process.

73 de Lee, AA4GA



On Tue, Aug 23, 2022 at 4:07 PM JEROME SODUS  wrote:

> Hello,
>
> Yesterday, I was re-reading the KX3-manual to prepare for putting into use
> a magnetic-loop-antenna.
>
> The KX3 manual, on page 14, has this wording "TUNE is used to put out a CW
> signal at the power level selected by the PWR control.".
> This is new territory for me as I have never have used  "TUNE" or "XMIT"
> button.
>
> Neither the manual nor the great book "The Elecraft KX3-Portable" by Fred
> KE7X (SK) have answers to my questions, which are:
> 1. From where does this CW signal come?
> 2. What information is in that CW signal?
> The concern I have is the CW signal will get out from my mag-loop-antenna
> into the "ether", so my call-sign needs to be there to satisfy the FCC.
>
> TIA for any assistance.
> 73 jerry km3k KX3#6088
> __
> 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 lee.hi...@gmail.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 arch...@mail-archive.com 

[Elecraft] KX3 and its "TUNE" selection.

[JEROME SODUS]

Hello,

Yesterday, I was re-reading the KX3-manual to prepare for putting into use a 
magnetic-loop-antenna.

The KX3 manual, on page 14, has this wording "TUNE is used to put out a CW 
signal at the power level selected by the PWR control.".
This is new territory for me as I have never have used  "TUNE" or "XMIT" button.

Neither the manual nor the great book "The Elecraft KX3-Portable" by Fred KE7X 
(SK) have answers to my questions, which are:
1. From where does this CW signal come?
2. What information is in that CW signal?
The concern I have is the CW signal will get out from my mag-loop-antenna into 
the "ether", so my call-sign needs to be there to satisfy the FCC.

TIA for any assistance.
73 jerry km3k KX3#6088
__
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 arch...@mail-archive.com