[Elecraft] FOR SALE: Elecraft K3/100 160-6m Transceiver — KAT3 ATU—KPA100 Amplifier—XRX3 Subreceiver

[Charles Tropp]

Elecraft K3/100 160-6m Transceiver Serial #2502 with the standard 2.7 kHz
filter, the KAT3 Internal Auto Antenna Tuner, KPA100W Amplifier and XRX3
Subreceiver.  The subreceiver is identical to the main receiver and has its
own 400Hz filter. It can tune the same range of frequencies as the main
receiver and is terrific at busting DX pileups.

   - This K3 also comes with lots of extras including:
   - Three (3) additional CW Filters: 700Hz, 400Hz and 250Hz for the utmost
   in selectivity.
   - KXV3A Interface Option which provides a separate receive antenna input
   and output, an input and output for use with an external transverter, and a
   buffered i.f. output. (Handy for adding an external Panadapter or SDR).
   - The K3 has been upgraded with the KSYN3A synthesizers in both the Main
   and Subreceiver. The synthesizer produces cleaner synthesized signals
   leading to better transmitter and receiver performance and has a better
   switch time to improve TX/RX switching for high speed CW.
   - There is no internal sound card in this K3, but included in this
   bundle is the TigerTronics Signal Link USB interface which adds an external
   sound card and comes with the Elecraft connection cable and complete
   documentation. Just what you need to work the new digital modes such as FT8.
   - You can connect a PC that has a serial port to download firmware and
   software upgrades as well as to allow computer control of the K3 with your
   favorite contest and general loggers. No serial port? No problem—I include
   the original Elecraft KUSB Universal Serial Bus Adapter cable which allows
   you to simply plug the K3 into an available USB port.
   - This K3 was upgraded, calibrated and aligned by the Elecraft Factory
   in 2015 to meet or exceed all factory specifications.
   - The installation and operation manuals are included as well as all
   upgrade and repair documentation.
   - This unit is sold *AS IS *and subject to the following *caveat* which
   may or may not be of concern to you: I am unable to get my Begali Single
   Lever Paddle to work properly with the Elecraft Internal Keyer. I can only
   send dits or dahs (depending on the menu option) but not both. In other
   words one side of the paddle does not work. There may be a problem with the
   paddle jack connection. I have always preferred to use either a straight
   key or my external Winkeyer USB as it performs well with the software
   programs that I use and it plugs directly into the Key Jack which works
   fine.


I am asking $1,695 for this package + Shipping via Priority US Mail to
CONUS.


-- 
*73, Charles N2SO*
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Re: [Elecraft] FOR SALE: Elecraft K3/100 160-6m Transceiver — KAT3 ATU—KPA100 Amplifier—XRX3 Subreceiver

[Charles Tropp]

The K3 has been sold. Thanks for your interest.

On Mon, Dec 20, 2021 at 6:05 AM Charles Tropp 
wrote:

> Elecraft K3/100 160-6m Transceiver Serial #2502 with the standard 2.7 kHz
> filter, the KAT3 Internal Auto Antenna Tuner, KPA100W Amplifier and XRX3
> Subreceiver.  The subreceiver is identical to the main receiver and has its
> own 400Hz filter. It can tune the same range of frequencies as the main
> receiver and is terrific at busting DX pileups.
>
>- This K3 also comes with lots of extras including:
>- Three (3) additional CW Filters: 700Hz, 400Hz and 250Hz for the
>utmost in selectivity.
>- KXV3A Interface Option which provides a separate receive antenna
>input and output, an input and output for use with an external transverter,
>and a buffered i.f. output. (Handy for adding an external Panadapter or
>SDR).
>- The K3 has been upgraded with the KSYN3A synthesizers in both the
>Main and Subreceiver. The synthesizer produces cleaner synthesized signals
>leading to better transmitter and receiver performance and has a better
>switch time to improve TX/RX switching for high speed CW.
>- There is no internal sound card in this K3, but included in this
>bundle is the TigerTronics Signal Link USB interface which adds an external
>sound card and comes with the Elecraft connection cable and complete
>documentation. Just what you need to work the new digital modes such as 
> FT8.
>- You can connect a PC that has a serial port to download firmware and
>software upgrades as well as to allow computer control of the K3 with your
>favorite contest and general loggers. No serial port? No problem—I include
>the original Elecraft KUSB Universal Serial Bus Adapter cable which allows
>you to simply plug the K3 into an available USB port.
>- This K3 was upgraded, calibrated and aligned by the Elecraft Factory
>in 2015 to meet or exceed all factory specifications.
>- The installation and operation manuals are included as well as all
>upgrade and repair documentation.
>- This unit is sold *AS IS *and subject to the following *caveat* which
>may or may not be of concern to you: I am unable to get my Begali Single
>Lever Paddle to work properly with the Elecraft Internal Keyer. I can only
>send dits or dahs (depending on the menu option) but not both. In other
>words one side of the paddle does not work. There may be a problem with the
>paddle jack connection. I have always preferred to use either a straight
>key or my external Winkeyer USB as it performs well with the software
>programs that I use and it plugs directly into the Key Jack which works
>fine.
>
>
> I am asking $1,695 for this package + Shipping via Priority US Mail to
> CONUS.
>
>
> --
> *73, Charles N2SO*
>
>


-- 
*73, Charles N2SO*
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Re: [Elecraft] Best Portable Wire

[Ed Cole]

Well Rich,

Guess you are a late comer.

I got my ham license at age 14 and I am now 77.  I've been married 18 
years.  She was married to ham before me, so had been "broke-in" before 
getting "saddled" with me (western sayin).  That was the good news and 
the bad news.


When she arrived north to live with me, I already had a 50-foot tower up 
and 8-foot dish inside a "golfball" radome.  She wanted a nicer home but 
knew there were two requirements: room for my 13 sled dogs and room for 
my antennas (and ham shack).  Now I have four towers and a 16-foot dish. 
 All the sled dogs have passed onto "dog heaven" and only have one 
house dog which is hers.


She knows the money goes into ham stuff and not beers at the local pub 
(plus skirt chasing).


And she is even the NA sales rep for Dubus Magazine (which she gets a 
little 'pin' money from).  Dubus is published in Germany and is VHF/mw 
ham technical magazine + European VHF activity news.  She even has 
accompanied me to ham conferences.


She is not a ham.  But she is a good one and I'm keeping her!

73, Ed - KL7UW, ex-AL7EB, ex-K8MWA

From: Rich WC3T 
To: Wayne Burdick 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] High bands open
Message-ID: 
Content-Type: text/plain;   charset=utf-8

I?ve been married for 38 years.
I?ve been a ham since 2015.
Gotta pick my battles.

72,
Rich Hurd / WC3T / DMR: 3142737
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[Elecraft] K3 and EasyPal program ?

[Bob KD7YZ]

Hello Elecraft List

Some guys were sending .jpeg's back and forth on 80m this morning and I asked 
them what program they used.

All were using EasyPal from EasyPal.org (free)  .

So I received several pix from the group but was never able to transmit.

The Setup mernu has a few rigs to chose from but not a single Elecraft.

Anyone ever used a K3 with that program?


--
73,
KD7YZ Bob EM88LL

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Re: [Elecraft] K3 and EasyPal program ?

[Linda M]

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[Elecraft] K2

[snowy howell via Elecraft]

Hi All
Update on the K2 and its problems or now lack of them.
Finished setting up the filters and other than getting ‘low Batt’ indication 
now and again all appears to be well.
Fitted the KAF2 and set up the clock, that taxed my grey cell but managed it in 
the end.
Just need to give it an on air test and that’s it, sorted. 
Just want to thank Dave and Don for their help in getting me to this point.
 Thanks very much

73

Snowy G0HZE 

Sent from Mail for Windows

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Re: [Elecraft] Antennas and Aesthetics

[Morgan Bailey]

Years ago...about 30, I had 2 ele 40, th7 and th5 and Higain Hightower and
double extended zepp ladder line fed cut for 40 which I used for 160-40.
Jobs change and that really changes one's life. I started traveling and as
such could no longer maintain the 3 towers so down it came all the radios
antennas and towers were sold. 23 years later, only being home for 1 month
a year, I finally retired. In the meantime, we sold the 2 story house on
the highest point in the city, and bought a ranch about 300 feet lower
surrounded by trees and hills with no view of the horizon in any direction
from the ground. Well a man has got to have something to do. My wife spent
disposable income on remodeling the house room to room. New kitchen, 3 new
bathrooms, walls were moved or taken down and space opened up. Everytime I
came home for a weekend, something had changed. And of course, each room
needed new furniture. Upon retiring, I told her I was putting up a tower. I
bought a Tashian 52 footer with a motor, and the arguments began...which
later changed to many heated discussions. Finally, a compromise was made. I
told her, I was perfectly content with not having ham radio with towers and
that I was going to buy a new $18,000 motorcycle and I would come home
maybe 6 months a year. I started getting my bike ready for trade in and she
started softening up after a few road trips when I was gone for a few days.
Then I went to Alaska for 21 days and 10,000 miles solo on my bike. I did
not miss the radio at all. It was a great time. When I got back she agreed
to compromise, especially when she saw me maping out 4 corners, Nova
Scotia, PEI, Iceland and Europe. A compromise was quickly made. I put up a
tower and bracketed it to the house. All approved by the city engineer and
building permits were obtained. I have a 38 foot Rohn 45G tower with
Navassa 5 antenna and an inverted L/vertical in the backyard for 160/80/40.
The entire antenna farm is 68 linear feet. As I have gotten older that is
all that I want and want to maintain. It is a pretty bombproof setup and is
easy to climb. During contests I put up other antennas for experimentation
in the front yard. I take them down after the contest. If I get complaints,
I just go out to the garage and start the motorcycle for a few minutes and
that pretty much ends the conversation.

I wish you well in your antenna endeavors. LOL!

73, Morgan NJ8M


BS + MS + $2.98 = COFFEE
Real Life Experience = Priceless, says the man who set his back yard on
fire with a breadboard tuner loading a 160 meter inverted L with 1000
watts. LOL


On Mon, Dec 20, 2021 at 9:14 AM  wrote:

> Here's another, utterly impractical, solution:
>
> When my wife and I built our weekend home in the Colorado mountains we
> chose
> the site for its natural beauty.  Antennas are unnatural.  I was content
> with having only dipoles and Vees, but even they spoiled the view.  So,
> every time we were at the house and I wanted to operate, I would raise them
> up.  When done, I lowered them, leaving the supporting ropes dangling
> against their trees with a snap-bolt on each rope's end.  The dipoles
> themselves -- including a multi-band for 10-15-20 and, at the time, Vees
> for
> 40 and 80 -- were rolled up, the coax feed lines were disconnected from the
> sockets under the deck of the house, and it was all put away out of sight.
>
> I no longer do that, and haven't in recent years given age and a bad
> shoulder.  But during the first few years I learned how to deploy and store
> my farm in minutes.
>
> Ted, KN1CBR
>
> On Sunday, December 19, 2021, 8:04 PM, Rich WC3T  wrote:
>
> When we moved to this QTH about 20 years ago my wife (SWMBO) remarked on
> how
> the location was perfect for ham radio as we are on top of a smallish hill.
> ? So. Much. Win. ?Or so I thought.?
> Years later when I had the temerity to launch an OCF dipole across two
> trees, the first words out of her mouth were ?What is THAT POS?? ??
> Obviously she didn?t have the same mentalImage as I did. ? I quietly filed
> the tower plans and am now QRP mobile. ?
>
> 72,
> Rich Hurd / WC3T /?DMR:?3142737??Northampton County RACES, EPA-ARRL Public
> Information Officer for ScoutingGrid:?FN20is
>
>
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Re: [Elecraft] Best Portable Wire

[Gwen Patton]

I'm partial to the Kev-Flex kevlar core wire sold by Dave Cripe Nm0s. It's
small in diameter, wicked strong, and the PVC jacket is slick as snot on a
doorknob.  I but mine from him on eBay. He usually sells it in 75 foot
lengths, but if you want a longer piece, just drop a note in the order and
he'll leave multiple lengths in one piece.

https://qrper.com/tag/dave-cripe-nm0s/

73,
Gwen, NG3P


On Sun, Dec 19, 2021, 6:54 PM K4SRQ-Burt  wrote:

> Ok, quick question for all you portable geeks.  I am running the Wayne
> style end fed random wire thrown over a tree.  Using AWG 14 but need a
> smaller wire.  Anyone have a favorite wire you use for the Ant and
> Ground Plane?  Rugged, straightens nice etc.?
>
> Burt
>
> K4SRQ
> Sarasota
>
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Re: [Elecraft] Best Portable Wire

[Walter Underwood]

I was using the Coghlan’s laundy reels, but it took a long time to wind up the 
wire, they would bind (not smooth turning), and would pop open when dropped. 

Now I use the Midi Winders from SOTAbeams. Wind the wire on in a figue-8, no 
kinks and quck to get on and off. SOTAbeams makes three sizes. The Midi Winders 
are the same length as my KX3.

https://www.sotabeams.co.uk/midi-winders/

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

> On Dec 20, 2021, at 6:48 AM, email  wrote:
> 
> I have been using a couple of "things"...
> 
> First see: 
> https://www.amazon.com/Coghlans-Camp-Laundry-Reel-21-Foot/dp/B001QBZM4Q/ref=sr_1_29?crid=3GJ5K4I006OGB=camping+clothesline=1640011049=camping+clothesline%2Caps%2C109=8-29
>  as a wire winder.
> 
> I use 24ga Teflon wire.  The copper strands are silver plated, with a banana 
> plug attached.  I have been using the winder + Teflon wire for many years.  
> Works great.
> 
> For my 135' ladderline fed dipole, I use 24ga silver plated wire that is (I 
> think) nylon coated.  I picked it out of the "junk box" (trash) at work YEARS 
> ago.  The closest replacement would be Teflon wire.  The silver plating makes 
> for GREAT conduction.
> 
> Otherwise, I would use Wireman stealth wire either 26ga or 18ga.
> 
> 73, steve WB3LGC
> 
> On 12/19/21 6:52 PM, K4SRQ-Burt wrote:
>> Ok, quick question for all you portable geeks.  I am running the Wayne style 
>> end fed random wire thrown over a tree.  Using AWG 14 but need a smaller 
>> wire.  Anyone have a favorite wire you use for the Ant and Ground Plane?  
>> Rugged, straightens nice etc.?
>> 
>> Burt
>> 
>> K4SRQ
>> Sarasota
>> 
>> __
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[Elecraft] FOR SALE: k144xv transverter & k3 fm filter

[Greg Mitchell]

I have got a k144xv transverter and fm filter that I was going to install for 
vhf contesting and wound up with another option in the shack before I could get 
this installed.

k144xv - $375/shipped (48 states)
fm filter - $125/shipped (48 states)

Paypal preferred.

73,
Greg KB1AWM
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Re: [Elecraft] RFIth

[Jim Brown]

On 12/20/2021 7:50 PM, Buck K4IA wrote:
More turns is better until we get to very large chokes where the 
inter-coil capacitance lowers the impedance.


No. See my post in this thread about resonance.

BTW -- I strongly agree that clamp-ons should be secured with a ty-wrap. 
And something I missed the first time around, but corrected in the 
latest version of RFI-Ham is that turns must go though the core in 
sequence. Out of sequence turns cancel in-sequence turns. Learned this 
from some measurements.


73, Jim K9YC
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Re: [Elecraft] RFIth

[Pete Smith N4ZR]

Others can speak more authoritatively about this, but I thought those 
clamp-on cores, where they go right on the existing run of coax, offered 
too little inductance to be of much use below VHF.  Experts?


73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at .
For spots, please use your favorite
"retail" DX cluster.

On 12/20/2021 8:02 PM, Bob McGraw wrote:
For those using the clamp-on ferrite devices, when installing them, be 
sure part A closes completely and solidly contacts part B. Otherwise, 
there is no flux path and the device is ineffective. If it is closed 
and loose on the cable, then that's good.   If it is closed or 
difficult to close, it isn't large enough for the cable and will 
likely not be effective.   Any gap between the halves renders it 
worthless for the application.


73

Bob, K4TAX


On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 11
Date: Mon, 20 Dec 2021 08:34:24 -0800
From: Dave
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI
Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Hi,

Purchase some FT240-31 ferrite cores,
(https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
turns of each cable going to, or from, the computer through the ferrite.

I have several of these, and they stopped ALL of my RFI issues with my
computer, and with a weather station I have as well.

Shop around looking for the best price, some folks are asking 10 bucks
for one of these, others are asking 5 bucks...  I use Newark, and
Digikey as my goto places.

Also look to K9YC's site, for more information on how to make the 
chokes...


http://k9yc.com/2018Cookbook.pdf

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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Re: [Elecraft] Best Portable Wire

[Lyn Norstad]

I prefer Wireman #531.

 

From thewireman.com:

 

Tough coat ‘Silky’ with a tough outer jacket (nominal OD, 0.120″ including 
0.020″ jacket).

Weight per ft is .03 ounces.

VF=.95

 

Designed for through-the-trees, sea coast, acid rain or other inclement 
atmospheric conditions. Our most rugged, longest-lived, stranded antenna wire 
for any purpose. Jacket has minimal effect on performance – less than that of a 
year’s accumulation of oxidation product on bare wire, with less noise. Break 
strength 400 lbs. Price is per foot.

 

Specifications Wire Type 19x stranded copper-clad steel (40%) Wire Gauge 14 AWG 
Jacket High density, low-gloss polyethylene Break Strength 400 lbs

 

Our number one seller in antenna wire for permanent installations.

 

https://thewireman.com/product/antenna-wire-13-awg-copper-clad-steel-stranded-jacketed/

 

73

Lyn, W0LEN

 

 

 

 

 

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rich WC3T
Sent: Sunday, December 19, 2021 7:20 PM
To: Ronnie Hull
Cc: Elecraft Reflector
Subject: Re: [Elecraft] Best Portable Wire

 

I third the selection of “The Wireman” products.  Excellent quality.  I use the 
26-ga myself. 

 

72,

Rich Hurd / WC3T / DMR: 3142737  

Northampton County RACES, EPA-ARRL PIO

Grid: FN20is

 

> On Dec 19, 2021, at 20:03, Ronnie Hull  wrote:

> 

> What Wayne said! That Silky 26 g is the way to go. Easy to break though so 
> don’t put the John Wayne on it!

> Ron W5SUM 

> 

> Sent from my iPhone

> 

>> On Dec 19, 2021, at 6:50 PM, Wayne Burdick  wrote:

>> 

>> 26 AWG "Silky" from the Wireman.

>> 

>> Wayne

>> 

>> 

 On Dec 19, 2021, at 3:52 PM, K4SRQ-Burt  wrote:

>>> 

>>> Ok, quick question for all you portable geeks.  I am running the Wayne 
>>> style end fed random wire thrown over a tree.  Using AWG 14 but need a 
>>> smaller wire.  Anyone have a favorite wire you use for the Ant and Ground 
>>> Plane?  Rugged, straightens nice etc.?

>>> 

>>> Burt

>>> 

>>> K4SRQ

>>> Sarasota

>>> 

>>> __

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Re: [Elecraft] RFIth

[David Herring]

Even when properly sized, as an added insurance policy, I run a zip tie around 
the perimeter of the clamp-on and cinch it down tight to ensure that the two 
halves are in solid contact with each other. It may not be a problem, but just 
in case there is any play or give in the plastic snap and enclosure, this added 
step would address that.

73,
Dave - N5DCH




> On Dec 20, 2021, at 6:02 PM, Bob McGraw  wrote:
> 
> For those using the clamp-on ferrite devices, when installing them, be sure 
> part A closes completely and solidly contacts part B.   Otherwise, there is 
> no flux path and the device is ineffective.  If it is closed and loose on the 
> cable, then that's good.   If it is closed or difficult to close, it isn't 
> large enough for the cable and will likely not be effective.   Any gap 
> between the halves renders it worthless for the application.
> 
> 73
> 
> Bob, K4TAX
> 
> 
> On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:
>> Message: 11
>> Date: Mon, 20 Dec 2021 08:34:24 -0800
>> From: Dave
>> To:elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] RFI
>> Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>> 
>> Hi,
>> 
>> Purchase some FT240-31 ferrite cores,
>> (https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
>> turns of each cable going to, or from, the computer through the ferrite.
>> 
>> I have several of these, and they stopped ALL of my RFI issues with my
>> computer, and with a weather station I have as well.
>> 
>> Shop around looking for the best price, some folks are asking 10 bucks
>> for one of these, others are asking 5 bucks...  I use Newark, and
>> Digikey as my goto places.
>> 
>> Also look to K9YC's site, for more information on how to make the chokes...
>> 
>> http://k9yc.com/2018Cookbook.pdf
>> 
>> 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] Kat500 Firmware

[Richard Gilley]

Hi,
Having difficulty loading latest version of the Kat500 utility.  The 
version I have is 01.75, the utility indicates that 2.05 is available.  However 
the new version does not load but the message “ Input hex file is corrupt, 
check sum is not zero”

I have the same issue attempting to load a Mac and Linux.

Perhaps 2.05 is not available?  Or is there a fix I am not aware of, or perhaps 
it is not necessary to upgrade?

Thank you for your interest. Help would be appreciated.

Best 
AD1G  
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Re: [Elecraft] RFIth

[David Herring]

Pete,

Yes. You either have to have lots of them, or you need to get bigger ones and 
run multiple turns through them. Also get the right “mix” for the frequency 
range in question. Type 31 is pretty good for HF.

Not an expert, but studied http://k9yc.com/RFI-Ham.pdf 
, http://k9yc.com/RXChokesTransformers.pdf 
, 
http://k9yc.com/GroundingAndAudio.pdf  
and others at http://k9yc.com/publish.htm .  There 
is a wealth of information there, available for free.
 
73,
Dave - N5DCH




> On Dec 20, 2021, at 7:21 PM, Pete Smith N4ZR  wrote:
> 
> Others can speak more authoritatively about this, but I thought those 
> clamp-on cores, where they go right on the existing run of coax, offered too 
> little inductance to be of much use below VHF.  Experts?
> 
> 73, Pete N4ZR
> Check out the new Reverse Beacon Network
> web server at  >.
> For spots, please use your favorite
> "retail" DX cluster.
> 
> On 12/20/2021 8:02 PM, Bob McGraw wrote:
>> For those using the clamp-on ferrite devices, when installing them, be sure 
>> part A closes completely and solidly contacts part B. Otherwise, there is no 
>> flux path and the device is ineffective. If it is closed and loose on the 
>> cable, then that's good.   If it is closed or difficult to close, it isn't 
>> large enough for the cable and will likely not be effective.   Any gap 
>> between the halves renders it worthless for the application.
>> 
>> 73
>> 
>> Bob, K4TAX
>> 
>> 
>> On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:
>>> Message: 11
>>> Date: Mon, 20 Dec 2021 08:34:24 -0800
>>> From: Dave
>>> To:elecraft@mailman.qth.net
>>> Subject: Re: [Elecraft] RFI
>>> Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
>>> Content-Type: text/plain; charset=utf-8; format=flowed
>>> 
>>> Hi,
>>> 
>>> Purchase some FT240-31 ferrite cores,
>>> (https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
>>> turns of each cable going to, or from, the computer through the ferrite.
>>> 
>>> I have several of these, and they stopped ALL of my RFI issues with my
>>> computer, and with a weather station I have as well.
>>> 
>>> Shop around looking for the best price, some folks are asking 10 bucks
>>> for one of these, others are asking 5 bucks...  I use Newark, and
>>> Digikey as my goto places.
>>> 
>>> Also look to K9YC's site, for more information on how to make the chokes...
>>> 
>>> http://k9yc.com/2018Cookbook.pdf
>>> 
>>> 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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Re: [Elecraft] Kat500 Firmware

[Lyn Norstad]

The KAT500 Utility software is v1.21.9.15.  Use it to download and install the 
KAT500 v02.05 firmware.

Have you tried under Windows?

It's always worked perfectly for me.

73
Lyn, W0LEN


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Gilley
Sent: Monday, December 20, 2021 6:19 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Kat500 Firmware

Hi,
Having difficulty loading latest version of the Kat500 utility.  The 
version I have is 01.75, the utility indicates that 2.05 is available.  However 
the new version does not load but the message “ Input hex file is corrupt, 
check sum is not zero”

I have the same issue attempting to load a Mac and Linux.

Perhaps 2.05 is not available?  Or is there a fix I am not aware of, or perhaps 
it is not necessary to upgrade?

Thank you for your interest. Help would be appreciated.

Best 
AD1G  
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[Elecraft] Kat500 Firmwar

[Bob McGraw]

Richard et al:

Just checked my KAT500 and it had V1.75 installed.  Then with the KAT500 
Utility, version 1.21.9.15, I did download the firmware from the 
Elecraft site and install V2.05 into my KAT500.   I saw no issues.  
Running a Windows 10 Pro 64 bit computer.


73

Bob, K4TAX


On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 23
Date: Mon, 20 Dec 2021 19:18:48 -0500
From: Richard Gilley
To:elecraft@mailman.qth.net
Subject: [Elecraft] Kat500 Firmware
Message-ID:<1b3a4757-fc90-4c7c-a560-807c9de63...@gmail.com>
Content-Type: text/plain;   charset=utf-8

Hi,
Having difficulty loading latest version of the Kat500 utility.  The 
version I have is 01.75, the utility indicates that 2.05 is available.  However 
the new version does not load but the message ? Input hex file is corrupt, 
check sum is not zero?

I have the same issue attempting to load a Mac and Linux.

Perhaps 2.05 is not available?  Or is there a fix I am not aware of, or perhaps 
it is not necessary to upgrade?

Thank you for your interest. Help would be appreciated.

Best
AD1G


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Re: [Elecraft] RFIth

[Dave]

I wire tie mine closed once in place...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 12/20/21 17:02, Bob McGraw wrote:
For those using the clamp-on ferrite devices, when installing them, be 
sure part A closes completely and solidly contacts part B.   Otherwise, 
there is no flux path and the device is ineffective.  If it is closed 
and loose on the cable, then that's good.   If it is closed or difficult 
to close, it isn't large enough for the cable and will likely not be 
effective.   Any gap between the halves renders it worthless for the 
application.


73

Bob, K4TAX


On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 11
Date: Mon, 20 Dec 2021 08:34:24 -0800
From: Dave
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI
Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Hi,

Purchase some FT240-31 ferrite cores,
(https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
turns of each cable going to, or from, the computer through the ferrite.

I have several of these, and they stopped ALL of my RFI issues with my
computer, and with a weather station I have as well.

Shop around looking for the best price, some folks are asking 10 bucks
for one of these, others are asking 5 bucks...  I use Newark, and
Digikey as my goto places.

Also look to K9YC's site, for more information on how to make the 
chokes...


http://k9yc.com/2018Cookbook.pdf

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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Re: [Elecraft] RFIth

[Jim Brown]

On 12/20/2021 6:21 PM, Pete Smith N4ZR wrote:
Others can speak more authoritatively about this, but I thought those 
clamp-on cores, where they go right on the existing run of coax, offered 
too little inductance to be of much use below VHF.  Experts?


That's right, sort of. But it misses the principle of how ferrite chokes 
work. It's NOT the inductance, it's the resonance formed by the parallel 
resonant circuit of series inductance and resistance coupled from the 
core with stray (parasitic) capacitance of the winding. Choking action 
is provided by the resistance associated with that parallel resonance. 
The most useful chokes are those with a broad, low Q resonance. THAT'S 
what is so special about the #31 mix, which combines the resonance of 
the winding with a dimensional resonance within the core. OTs among us 
will remember stagger-tuned IFs. Same principle.


k9yc.com/RFI-Ham.pdf  includes a tutorial discussion of this, so I won't 
repeat it here.


73, Jim K9YC
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Re: [Elecraft] RFIth

[Buck K4IA]

The impedance increases with the square of the turns.  2 turns = 4 times 
the impedance.  It would take 4 chokes in series to equal one choke with 
2 turns.  A "turn" is one pass through the middle.  More turns is better 
until we get to very large chokes where the inter-coil capacitance 
lowers the impedance.


Buck, K4IA
DXCC Honor Roll
8BDXCC
Author EasyWayHamBooks.com

On 12/20/2021 9:49 PM, David Herring wrote:

Pete,

Yes. You either have to have lots of them, or you need to get bigger ones and 
run multiple turns through them. Also get the right “mix” for the frequency 
range in question. Type 31 is pretty good for HF.

Not an expert, but studiedhttp://k9yc.com/RFI-Ham.pdf  
,http://k9yc.com/RXChokesTransformers.pdf  
,http://k9yc.com/GroundingAndAudio.pdf  
  and others athttp://k9yc.com/publish.htm  
.  There is a wealth of information there, available for free.
  
73,

Dave - N5DCH





On Dec 20, 2021, at 7:21 PM, Pete Smith N4ZR  wrote:

Others can speak more authoritatively about this, but I thought those clamp-on 
cores, where they go right on the existing run of coax, offered too little 
inductance to be of much use below VHF.  Experts?

73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at >.
For spots, please use your favorite
"retail" DX cluster.

On 12/20/2021 8:02 PM, Bob McGraw wrote:

For those using the clamp-on ferrite devices, when installing them, be sure 
part A closes completely and solidly contacts part B. Otherwise, there is no 
flux path and the device is ineffective. If it is closed and loose on the 
cable, then that's good.   If it is closed or difficult to close, it isn't 
large enough for the cable and will likely not be effective.   Any gap between 
the halves renders it worthless for the application.

73

Bob, K4TAX


On 12/20/2021 6:18 PM,elecraft-requ...@mailman.qth.net  wrote:

Message: 11
Date: Mon, 20 Dec 2021 08:34:24 -0800
From: Dave
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI
Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Hi,

Purchase some FT240-31 ferrite cores,
(https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
turns of each cable going to, or from, the computer through the ferrite.

I have several of these, and they stopped ALL of my RFI issues with my
computer, and with a weather station I have as well.

Shop around looking for the best price, some folks are asking 10 bucks
for one of these, others are asking 5 bucks...  I use Newark, and
Digikey as my goto places.

Also look to K9YC's site, for more information on how to make the chokes...

http://k9yc.com/2018Cookbook.pdf

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] RFIth

[Bob McGraw]

For those using the clamp-on ferrite devices, when installing them, be 
sure part A closes completely and solidly contacts part B.   Otherwise, 
there is no flux path and the device is ineffective.  If it is closed 
and loose on the cable, then that's good.   If it is closed or difficult 
to close, it isn't large enough for the cable and will likely not be 
effective.   Any gap between the halves renders it worthless for the 
application.


73

Bob, K4TAX


On 12/20/2021 6:18 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 11
Date: Mon, 20 Dec 2021 08:34:24 -0800
From: Dave
To:elecraft@mailman.qth.net
Subject: Re: [Elecraft] RFI
Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Hi,

Purchase some FT240-31 ferrite cores,
(https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5
turns of each cable going to, or from, the computer through the ferrite.

I have several of these, and they stopped ALL of my RFI issues with my
computer, and with a weather station I have as well.

Shop around looking for the best price, some folks are asking 10 bucks
for one of these, others are asking 5 bucks...  I use Newark, and
Digikey as my goto places.

Also look to K9YC's site, for more information on how to make the chokes...

http://k9yc.com/2018Cookbook.pdf

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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Re: [Elecraft] High bands open

[Hank via Elecraft]

Thanks for the heads up yesterday!  Worked a few on 10 I didn't have yet.

Hank
K4HYJ


- Original Message -
From: Wayne Burdick (n...@elecraft.com)
Date: 12/19/21 16:24
To: Elecraft Reflector (elecraft@mailman.qth.net)
Subject: [Elecraft] High bands open

I suggest checking 17 through 10 meters today. Quite a nice opening. Lots of 
SSB activity around 28.400 right now.

73,
Wayne
N6KR

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Re: [Elecraft] Elecraft Digest, Vol 212, Issue 9

[jerry]

On 2021-12-18 11:39, Douglas Hagerman via Elecraft wrote:

My K2 PLL problems all originated in one inadequately tinned toroid
wire.


*** After having a few projects borked because of this exact issue, I 
broke

down and bought a magnet wire stripper on Amazon.

https://www.amazon.com/gp/product/B09695CHTH

  Basically a Chinese copy of a really expensive German tool.  It has 
blades that
close down on the wire with centripetal force.  Works great for thicker 
wires,
but is not reliable with really thin ones - it can just chop the wire 
off.  I seem

to remember the cutoff being around 24AWG.

   The tool paid for itself on one KW Low Pass Filter project.

   - Jerry KF6VB
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Re: [Elecraft] Best Portable Wire

[email]

I have been using a couple of "things"...

First see: 
https://www.amazon.com/Coghlans-Camp-Laundry-Reel-21-Foot/dp/B001QBZM4Q/ref=sr_1_29?crid=3GJ5K4I006OGB=camping+clothesline=1640011049=camping+clothesline%2Caps%2C109=8-29 
as a wire winder.


I use 24ga Teflon wire.  The copper strands are silver plated, with a 
banana plug attached.  I have been using the winder + Teflon wire for 
many years.  Works great.


For my 135' ladderline fed dipole, I use 24ga silver plated wire that is 
(I think) nylon coated.  I picked it out of the "junk box" (trash) at 
work YEARS ago.  The closest replacement would be Teflon wire.  The 
silver plating makes for GREAT conduction.


Otherwise, I would use Wireman stealth wire either 26ga or 18ga.

73, steve WB3LGC

On 12/19/21 6:52 PM, K4SRQ-Burt wrote:
Ok, quick question for all you portable geeks.  I am running the Wayne 
style end fed random wire thrown over a tree.  Using AWG 14 but need a 
smaller wire.  Anyone have a favorite wire you use for the Ant and 
Ground Plane?  Rugged, straightens nice etc.?


Burt

K4SRQ
Sarasota

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[Elecraft] Antennas and Aesthetics

[edauer]

Here's another, utterly impractical, solution:

When my wife and I built our weekend home in the Colorado mountains we chose
the site for its natural beauty.  Antennas are unnatural.  I was content
with having only dipoles and Vees, but even they spoiled the view.  So,
every time we were at the house and I wanted to operate, I would raise them
up.  When done, I lowered them, leaving the supporting ropes dangling
against their trees with a snap-bolt on each rope's end.  The dipoles
themselves -- including a multi-band for 10-15-20 and, at the time, Vees for
40 and 80 -- were rolled up, the coax feed lines were disconnected from the
sockets under the deck of the house, and it was all put away out of sight.

I no longer do that, and haven't in recent years given age and a bad
shoulder.  But during the first few years I learned how to deploy and store
my farm in minutes.

Ted, KN1CBR

On Sunday, December 19, 2021, 8:04 PM, Rich WC3T  wrote:

When we moved to this QTH about 20 years ago my wife (SWMBO) remarked on how
the location was perfect for ham radio as we are on top of a smallish hill.
? So. Much. Win. ?Or so I thought.?
Years later when I had the temerity to launch an OCF dipole across two
trees, the first words out of her mouth were ?What is THAT POS?? ??
Obviously she didn?t have the same mentalImage as I did. ? I quietly filed
the tower plans and am now QRP mobile. ?

72,
Rich Hurd / WC3T /?DMR:?3142737??Northampton County RACES, EPA-ARRL Public
Information Officer for ScoutingGrid:?FN20is


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Re: [Elecraft] RFI

[Dave]

Hi,

Purchase some FT240-31 ferrite cores, 
(https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5 
turns of each cable going to, or from, the computer through the ferrite.


I have several of these, and they stopped ALL of my RFI issues with my 
computer, and with a weather station I have as well.


Shop around looking for the best price, some folks are asking 10 bucks 
for one of these, others are asking 5 bucks...  I use Newark, and 
Digikey as my goto places.


Also look to K9YC's site, for more information on how to make the chokes...

http://k9yc.com/2018Cookbook.pdf

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 12/19/21 16:24, David F. Reed wrote:


Due to some HOA C, I am confined to attic and gutter antennas for the 
time being.


I am getting a bit of RFI on occasion into my PC; it manifests itself 
mainly by apparently disconnecting the com port from Commander.  When 
this happens, I can restore functionality by selecting a different com 
port, and then re-selecting the original correct com port.


I am grounded to a 10' ground rod about 8 ft. from the station via 2" 
copper strap. I did install ferrite beads on the USB cables at the back 
of the PC as well as on the power cord, and this has reduced the 
frequency of occurrence, but I would like to eliminate it altogether.


Any other ideas and suggestions would be most appreciated!

Thanks & 73 de Dave, W5SV
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Re: [Elecraft] Net times & frequencies?

[Bill Frantz]

It should be noted that the SSB 80M net has had some issues 
fitting in. We share a frequency with a net that's been active 
for over 35 years which runs on local (daylight savings) time. 
So we are at 0100z during the summer and 0200z during the 
winter. Yesterday, we had a lot of interference from stations on 
3.774 and moved to 3.783 which was open. If you want to check 
into that gabfest, look around. Or let any of the net controls 
know you are planning to checkin by Sunday morning and we will 
try to find you, either on-air or on-line, to get you to the net.


73 Bill AE6JV

On 12/19/21 at 11:17 PM, kev...@coho.net (kevin) wrote:


Elecraft SSB Nets

...

 3.775   MHz  0100Z  ( 6 PM PDT Sunday)

...


---
Bill Frantz| "I wish there was a knob on the TV to turn 
up the
408-348-7900   | intelligence.  There's a knob called 
"brightness", but

www.pwpconsult.com | it doesn't work. -- Gallagher

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Re: [Elecraft] K2

[Don Wilhelm]

Snowy,

Make sure the switch on the Control Board is in the INT position.
If using a battery, it may have a low voltage - it must be higher than 
10.5 volts.


73,
Don W3FPR

On 12/20/2021 11:19 AM, snowy howell via Elecraft wrote:

Hi All
Update on the K2 and its problems or now lack of them.
Finished setting up the filters and other than getting ‘low Batt’ indication 
now and again all appears to be well.
Fitted the KAF2 and set up the clock, that taxed my grey cell but managed it in 
the end.
Just need to give it an on air test and that’s it, sorted.
Just want to thank Dave and Don for their help in getting me to this point.
  Thanks very much

73

Snowy G0HZE


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Re: [Elecraft] Best Portable Wire

[Julia Tuttle]

They're not very similar, they're identical! There's literally a website
address on the SOTAbeams winder I got from DX Engineering that goes to a
place that sells kite winders.

On Mon, Dec 20, 2021, 15:19 Dennis Moore  wrote:

> Very similar to kite string winders available on Amazon.
>
> 73, Dennis NJ6G
>
> On 12/20/2021 09:28, Walter Underwood wrote:
> > I was using the Coghlan’s laundy reels, but it took a long time to wind
> up the wire, they would bind (not smooth turning), and would pop open when
> dropped.
> >
> > Now I use the Midi Winders from SOTAbeams. Wind the wire on in a
> figue-8, no kinks and quck to get on and off. SOTAbeams makes three sizes.
> The Midi Winders are the same length as my KX3.
> >
> > https://www.sotabeams.co.uk/midi-winders/
> >
> > wunder
> > K6WRU
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Re: [Elecraft] K3 and EasyPal program ?

[Bob KD7YZ]

Hello Gwen Patton:

Monday, December 20, 2021, 2:14:29 PM, you chiseled out:

> Sounds like a slow-scan TV program, but it's not. You upload the picture to

> a server, then send the URL over the air for the other person to click on.

Well, it seems it does both , sends (Hybrid) to a server; and sends OTA

This morning they were sending; I was rx'ing. I could hear the transmission 
over the K3.
Yet they guided me to a setting to put in the free, and original one, server 
over the internet.

And just now, I tested the length of time it took to send a pict of my 80m NVIS 
DP at ten feet above ground.

Took about 70 seconds. And I know I was sending over the air as the watt-meter 
was telling me so.

So that's weird!. why the program was designed to to both I dunno. But it 
surely does.

I have Yoniq too.



many thanks for the reply and help.

--

Best regards,

Bob KD7YZ EM88LL

 

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Re: [Elecraft] Best Portable Wire

[Dennis Moore]

Very similar to kite string winders available on Amazon.

73, Dennis NJ6G

On 12/20/2021 09:28, Walter Underwood wrote:

I was using the Coghlan’s laundy reels, but it took a long time to wind up the 
wire, they would bind (not smooth turning), and would pop open when dropped.

Now I use the Midi Winders from SOTAbeams. Wind the wire on in a figue-8, no 
kinks and quck to get on and off. SOTAbeams makes three sizes. The Midi Winders 
are the same length as my KX3.

https://www.sotabeams.co.uk/midi-winders/

wunder
K6WRU

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Re: [Elecraft] K3 and EasyPal program ?

[Gwen Patton]

Sounds like a slow-scan TV program, but it's not. You upload the picture to
a server, then send the URL over the air for the other person to click on.
It has been around for a while, and there were claims it violated the
"pecuniary interest" clause in the regulations, but the hams don't get
money for it, so I don't think that's strictly so. I don't see any reason
why you couldn't use it, but I think it's more fun to use actual Slow-Scan
TV programs.

You can get MMSSTV, a venerable and last I heard, functional program.
https://hamsoft.ca/pages/mmsstv.php for free.

You can also get an SSTV program that ARRL links to, called Yoniq, a new
version of MMSSTV, which is also free.
http://www.arrl.org/news/new-sstv-software-now-available

This is yet another Internet/Amateur Radio fusion thing. I probably
wouldn't use it, though I do use a ThumbDV to access DMR, DStar, and Fusion
via my home computer and network. So I can't say anything bad about it
without hanging the "hypocrite" sign around my neck. hi hi

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Mon, Dec 20, 2021 at 11:39 AM Bob KD7YZ  wrote:

> Hello Elecraft List
>
> Some guys were sending .jpeg's back and forth on 80m this morning and I
> asked them what program they used.
>
> All were using EasyPal from EasyPal.org (free)  .
>
> So I received several pix from the group but was never able to transmit.
>
> The Setup mernu has a few rigs to chose from but not a single Elecraft.
>
> Anyone ever used a K3 with that program?
>
>
> --
> 73,
> KD7YZ Bob EM88LL
>
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