Re: [Elecraft] mic menu selection

[Dick Dievendorff]

I played with the macro tester a bit.

 

Put this macro into one of the memories:  I called it "SPKR+PH"

 

MN097;UP;MN255;

 

It selects the SPKR+PH menu entry (that's MN097), then it changes it with UP
(it goes between on and off with each UP or DN) and then MN255 to exit the
menu.

 

I'll put this into K3 Utility Help.

 

73 de Dick, K6KR



 

 

 

 

From: Allen Griffith [mailto:n...@verizon.net] 
Sent: Monday, March 21, 2011 9:25 PM
To: die...@comcast.net
Subject: mic menu selection

 

Dick , you said, 
"I sometimes prefer the front panel headphone jack because I like pulling
the
plug out and having the speaker come on.  There are menu ways of doing this,
but I'm old fashioned."

73 de Dick, K6KRk,

I'm interested in knowing the menu selections to keep the headphone plugged
in on the front of the K3 and be able to toggle between the phones and
speaker if I understood your reply to 

 


73,

GriffN5AG 

 

I know some things about a few things and I know little about a lot of
things!!

 

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[Elecraft] EC1 discontinued?

[Andrew Moore]

Has the EC1 (enclosure to match K1) been discontinued?
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Re: [Elecraft] T1 Feature Comment Please?

[Wayne Burdick]

Danny,

The frequencies on which you can hear T1 CW information will vary from  
one unit to the next because of small variations in the frequency of  
the microcontroller's crystal oscillator.

73,
Wayne
N6KR

On Mar 21, 2011, at 4:18 PM, Dan B Dyer Jr,/Danny wrote:

> Has anyone discovered a frequency where the T1 _Always gives CW  
> readout information, _Regardless of what freq is matched with it?
> Thanks, Danny Dyer, Wb4idu.
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Re: [Elecraft] [K3] Lack of audio punch

[Barry]

Thanks for all the comments, on and off list.

I did a little tweaking and am happy with the live mic audio as I listen to
it with headphones.  I also, re-recorded my DVR message.  It still sounds
much weaker than the live mic audio.  Am I missing an AF gain setting, or
something else, for the DVR?

Tnx,
barry W2UP

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View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-Lack-of-audio-punch-tp6190459p6194614.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K3 & S9 43' Vertical

[Vic K2VCO]

Putting the tuner at the base will be much more efficient than using the 
autotuner (or any 
tuner) at the rig end. If the tuner is at the base you will not need the unun.

As someone mentioned there was a huge discussion of this type of antenna a few 
weeks ago. 
Lots of 'attitude' was displayed. My recommendation is that you should install 
a ground 
system of at least 16 radials perhaps 20' long each (this is a 'minimum' ground 
system) 
and, if possible, use a remote tuner at the antenna base.

On 3/21/2011 2:11 PM, tjke...@windstream.net wrote:
> I have just gotten (but have not yet installed) an S9 43' vertical with
> optional 80m coil.  I am wondering if I will need an auto-tuner at the
> antenna or if the K3's atu is sufficient?  Also the instructions call
> for a 1:4 unun.  Can anyone point me a description of how to build
> one?  And finally, if anyone has used an S9 with a K3, what has been
> your experience?
>
> Thanks and 73,
>
> Tom
> W8TJK

-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: [Elecraft] T1 Feature Comment Please?

[Don Wilhelm]

  Danny,

I refer you to the T1 Owner's manual page 11 for a full explanation - 
particularly the first and last paragraphs.  The frequency that the INFO 
report data is send will vary (and drift) due to variations in the 
ceramic resonator frequency.  In other words, "Always" is not possible 
because of drift in the resonator - it is not a precise frequency 
standard, but simply a device intended to provide a clock to the MCU.

You might design a crystal based MCU oscillator that would have a more 
consistent frequency, but I doubt you could squeeze it into the T1 
enclosure.

73,
Don W3FPR

On 3/21/2011 7:18 PM,  Dan B Dyer Jr,/Danny wrote:
> Has anyone discovered a frequency where the T1 _Always gives CW readout 
> information, _Regardless of what freq is matched with it?
> Thanks, Danny Dyer, Wb4idu.
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[Elecraft] T1 Firmware Mod?

[Dan B Dyer Jr,/Danny]

Could the T1 be modified to give CW read out of last freq matched by it?
Thanks, Danny Dyer, Wb4idu.
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[Elecraft] T1 Feature Comment Please?

[Dan B Dyer Jr,/Danny]

Has anyone discovered a frequency where the T1 _Always gives CW readout 
information, _Regardless of what freq is matched with it?
Thanks, Danny Dyer, Wb4idu.
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Re: [Elecraft] Installed K3EXREF

[w4ish]

GEORGE, 
So they include the antenna, and what would the cost be for one without the 
gold case?
W4ISH
Bill

On Mar 21, 2011, at 8:50 AM, George Dubovsky [via Elecraft] wrote:

List, 

I know a thing or three about those Trimble T'bolts; I am a design engineer 
for the company that made the (previous generation) equipment that is now 
being surplussed in several parts of the world. There is no domestic or 
Chinese thunderbolt; there is the commercial version (silver and red case 
with internal dc-dc converter - runs off of 24 VDC) and the OEM version 
(thin gold case, sometimes with the original 3 dB splitter still attached to 
the case, no power supply). The OEM version being surplussed contains the 
same GPSDO guts as the commercial version, with two exceptions: the power 
connector is on the opposite side of the pwb, and one Zener diode is changed 
to move the trip point for the DC Power alarm to a lower value. Also, the 
newer units have a later date code Dallas Semi temp sensor that does not 
report temperature in the finer steps of the earlier date codes - this is 
not an issue for most folks. 

The OEM units require +5 , +12, and -7 to -12 VDC at modest current 
requirements. It is easy to find a surplus power supply that supports these 
units and it is just as easy to roll your own. I usually have a few tested 
OEM units available for sale, with or without the gold case (if you want to 
build it into your own cabinet). 

In addition, if you want the ultimate K3 accessory, I have a NIB Symmetricom 
Starloc II Plus, GPS-disciplined Rubidium oscillator for sale. 

Let me know if you want to know anything else about the Thunderbolt, or if 
you want one of your own. 

73, 

geo - n4ua 

On Sun, Mar 20, 2011 at 9:05 PM, Jerry Muller <[hidden email]> wrote: 

> This was an excellent explanation. 
> 
> I got a Trimble Thunderbolt off eBay for less than 200 bucks. It came from 
> China and came with an antenna and power supply. If you are going to get 
> one 
> of the ones that come from China, make sure you get the power supply with 
> it. The domestic Thunderbolts have a unipolar supply but the ones from 
> China 
> were specials and require a special bipolar power supply. As long as you're 
> getting the power supply with it, you're OK. I have not noticed any noise 
> from the power supply from China. I expect ferrites may solve the problem 
> if 
> found. 
> 
> It works just fine with the stock Thunderbolt software. I've had mine for 
> about 6 months and I've run tests using the Thunderbolt software. The PC 
> monitoring software allows you to monitor the errors detected and log them. 
> The accuracy is quite good. Although I see occasional errors greater than 1 
> part in 10^9, most of the measured errors are far less than 1 part in 10^9. 
> I can't find any of the spreadsheets I generated (from many hours of 
> operation) right now but I seem to recall that 1 sigma was down around 1 
> part in 10^10. This translates into a 1 Hz error at 10 GHz. The +/- 1 Hz 
> error in the K3 is much greater than the accuracy of the GPSDO 
> 
> My primary reason for getting the GPSDO was for microwave and EME 
> operations. Being able to use it with the K3 is a plus. I'm likely to be an 
> early adopter of the production units when they become available. I will 
> probably order my second K3 with a K3EXREF. 
> 
> Jerry - K0TV 
> 
> - Original Message - 
> From: "Paul Christensen" <[hidden email]> 
> To: <[hidden email]> 
> Sent: Saturday, March 19, 2011 9:34 PM 
> Subject: Re: [Elecraft] Installed K3EXREF 
> 
> 
> >I installed it on Friday in about 30 minutes, but I'm comfortable with my 
> > way around the K3.  I would think that most users could install it in 
> > about 
> > an hour or less.  Installation is actually very simple with very few 
> parts 
> > involved.  K3EXREF came with an SMA connector and SMA to BNC 
> > between-series 
> > adapter. 
> > 
> > Performance is exactly as promised by Elecraft.  Although K3EXREF will 
> not 
> > phase lock the K3 to the external frequency source, I'm finding that it 
> > stays within 1 Hz on 20m when locked to CHU at 14.670 MHz.   I'm also 
> > finding that testing for zero-beat to WWV at 10 MHz is not a good idea in 
> > my 
> > shack, and perhaps yours too.  There are many 10 MHz signals being 
> emitted 
> > by nearby appliances, LAN routers, security system, Ethernet boards, etc. 
> > That common, even frequency is everywhere in a household these days. 
> > 
> > In much of North America, CHU is an excellent source for testing since it 
> > keeps cesium accuracy like WWV but the odd frequency of CHU is a real 
> > benefit since the chance for beating against extraneous signals is much 
> > smaller than at 10 MHz.  Testing at a higher frequency rather than say 
> the 
> > MW broadcast band also provides for a reasonably good account of how the 
> > K3EXREF performs.   After installation, I would also suggest not trying 
> to 
> > test zero beat K3EXREF against

[Elecraft] K3 & 43' Verticals

[Ken - K0PP]

There was a recent thread with -much- discussion of
the currently popular 43' verticals.  Maybe it's available
on Nabble.

73! 
Ken Kopp - K0PP
elecraftcov...@gmail.com 
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Re: [Elecraft] K3 & S9 43' Vertical

[Tony Estep]

I have a 4:1 unun that I made from a balun kit (Amidon I think). It's wound
just like a balun, but the connections going out are slightly different.
Here's a website:

http://www.iv3sbe.webfundis.net/html/UNUN.htm

BTW, the unun works GREAT
with an end-fed wire and a well-chosen set of counterpoise wires. I get a
perfect match on 9 bands,160 - 10. The K3's ATU is magnificent.

Your antenna may match, but your radiation pattern will be poor unless you
put down radials. See the ARRL Antenna Book for lots of mind-numbing
details, or ON4UN's book for even more.

Tony KT0NY


On Mon, Mar 21, 2011 at 4:11 PM,  wrote:

> ...if the K3's atu is sufficient?  Also the instructions call
> for a 1:4 unun
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Re: [Elecraft] K3 and Field Day

[Tony Estep]

On Mon, Mar 21, 2011 at 3:24 PM, Wayne Burdick  wrote:

> ...Anyone can work Eric, with his monster antenna, seaside QTH, and 500
> W. If you really want to impress people, try working mea random wire 20
> feet off the roof, with power lines nearby


This is an awesome post, which I am gonna save.  These are the conditions
for which a really cool radio should be designed. You certainly reach the
largest audience with a radio that copes with all that. The next challenge
will be one that will work VU4 with that setup.

73,
Tony KT0NY
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[Elecraft] K3 & S9 43' Vertical

[tjkelly]

I have just gotten (but have not yet installed) an S9 43' vertical with
optional 80m coil.  I am wondering if I will need an auto-tuner at the
antenna or if the K3's atu is sufficient?  Also the instructions call
for a 1:4 unun.  Can anyone point me a description of how to build
one?  And finally, if anyone has used an S9 with a K3, what has been
your experience?

Thanks and 73,

Tom
W8TJK
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Re: [Elecraft] K3 and Field Day

[Wayne Burdick]

Kevin Rock wrote:

> I have worked you three times if memory serves me.  I have never  
> worked
> Eric.  At least once you were walking along the shore in Michigan with
> your KX1.

That was a memorable QSO, for sure, Kevin. I was sitting on a bench  
under the pines, up on a hill overlooking the lake. Sunny, slight  
breeze, my daughter reading Harry Potter nearby. The branch I picked  
for my antenna was high enough that I needed two 1-oz weights to toss  
it up there, and signals were great.

Wayne


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Re: [Elecraft] K3 and Field Day

[Gary Gregory]

*Wayne,

Chuckle...

He sure impressed those in the cheap seats..:-)

I played it pretty cool though..:-)

I try to work 10M every day so maybe we can work..kitty and son
permitting...

Now let's not increase salaries...the new toys are nicely priced as it is
and we don't want to drive the cost's up now do we?

Great to hear Eric though, it was the highlight of the weekend and
conditions were great till Eric left the frequency and closed the band off
so he could get some rest.

Grin

73's
Gary
*
On 22 March 2011 06:24, Wayne Burdick  wrote:

> Gary Gregory wrote:
>
>  I am very proud to announce that God spoke to me yesterday on 10M with a
>> K3 and a KPA-500 I can tell you all, Eric has a superb signal...I was
>> knocked for six when he came up on frequency
>>
>
> Gary,
>
> Anyone can work Eric, with his monster antenna, seaside QTH, and 500 W. If
> you really want to impress people, try working me. I always operate under
> extreme conditions to inspire our staff to create better tools for handing
> QRM and QRN: 10 watts into a random wire 20 feet off the roof, with power
> lines nearby, cats prowling my workbench, and my high-energy 6-year-old son
> throwing paper airplanes at me.
>
> Wayne
> N6KR
>
> P.S. No one informed me that Eric was God. I suppose I'd better increase
> his allowance.
>
>
>
>


-- 

*VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!*
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Re: [Elecraft] K3 and Field Day

[Kevin Rock]

Hi Wayne,
I have worked you three times if memory serves me.  I have never worked  
Eric.  At least once you were walking along the shore in Michigan with  
your KX1.  I don't remember what you were up to the other times.  Guess  
his monster signal just cannot get to Oregon ;)
73,
   Kevin.  KD5ONS



On Mon, 21 Mar 2011 13:24:36 -0700, Wayne Burdick   
wrote:

> Gary Gregory wrote:
>
>> I am very proud to announce that God spoke to me yesterday on 10M
>> with a K3 and a KPA-500 I can tell you all, Eric has a superb
>> signal...I was knocked for six when he came up on frequency
>
> Gary,
>
> Anyone can work Eric, with his monster antenna, seaside QTH, and 500
> W. If you really want to impress people, try working me. I always
> operate under extreme conditions to inspire our staff to create better
> tools for handing QRM and QRN: 10 watts into a random wire 20 feet off
> the roof, with power lines nearby, cats prowling my workbench, and my
> high-energy 6-year-old son throwing paper airplanes at me.
>
> Wayne
> N6KR
>
> P.S. No one informed me that Eric was God. I suppose I'd better
> increase his allowance.
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Re: [Elecraft] K3 and Field Day

[Wayne Burdick]

Gary Gregory wrote:

> I am very proud to announce that God spoke to me yesterday on 10M  
> with a K3 and a KPA-500 I can tell you all, Eric has a superb  
> signal...I was knocked for six when he came up on frequency

Gary,

Anyone can work Eric, with his monster antenna, seaside QTH, and 500  
W. If you really want to impress people, try working me. I always  
operate under extreme conditions to inspire our staff to create better  
tools for handing QRM and QRN: 10 watts into a random wire 20 feet off  
the roof, with power lines nearby, cats prowling my workbench, and my  
high-energy 6-year-old son throwing paper airplanes at me.

Wayne
N6KR

P.S. No one informed me that Eric was God. I suppose I'd better  
increase his allowance.



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Re: [Elecraft] Installed K3EXREF

[Tom Azlin N4ZPT]

And EME at 23cm given the rest of my station can be linked to my G3RUH 
GPS stabilized 10MHz ref.

73, tom n4zpt

On 3/20/2011 11:51 AM, Jim Miller wrote:
> I'm guessing this is really useful for EME at UHF.
>
> jim ab3cv
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Re: [Elecraft] [K3]Battery for K3?

[Phil Daniells, GJ4CBQ]

Have you considered a K2, Chris?

It's a very capable rig, designed to take an internal battery.  It's 
probably less power-hungry than a K3, but I've not checked the figures.

Its one weakness, for me, has been transmit audio on SSB, although I 
must admit I've not spent much time trying to optimise it as I use it 
mainly for CW.  The K3 wins hands-down in this respect.

73,

Phil, GJ4CBQ.




On 21/03/2011 17:40, Chris Rolinson G7DDN wrote:
> Hi all
>
> First time poster here - had a K3 for a few months now and really enjoying it 
> as the home station! Also finding this reflector of interest too!
>
> I have been wondering about saving the pennies for a K3-10 as well to use out 
> portable this coming summer and wondered
> ...has anyone managed to incorporate a long life battery into the area of the 
> K3-10 where the 100w PA goes?
>
> Seems to be a waste of good space when one one wants alternative power.  It 
> would be great also to have an option of a Gel-Cell type of power source that 
> was built in for portable use (like the K2). Any thoughts?
>
>
> Regards es 73
>
>
>
> Chris G7DDN
>
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[Elecraft] [K3]Battery for K3?

[Chris Rolinson G7DDN]

Hi all

First time poster here - had a K3 for a few months now and really enjoying it 
as the home station! Also finding this reflector of interest too!

I have been wondering about saving the pennies for a K3-10 as well to use out 
portable this coming summer and wondered
...has anyone managed to incorporate a long life battery into the area of the 
K3-10 where the 100w PA goes?  

Seems to be a waste of good space when one one wants alternative power.  It 
would be great also to have an option of a Gel-Cell type of power source that 
was built in for portable use (like the K2). Any thoughts?


Regards es 73



Chris G7DDN





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Re: [Elecraft] Carrying case for a K3?

[David Lankshear]

Wow! Alexander, that's quite a tall order.  Maybe you need something like a 
supermarket trolley with big wheels?  HI! HI!



If you could come up with the design you need, have a word with Rose, shown 
below.  She may well be able to hang a customised one together for you.  

She makes good stuff.

 

http://tinyurl.com/7lm3m5

 

elecraftcov...@gmail.com

 

73 Dave  G3TJP

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Re: [Elecraft] Carrying case for a K3?

[Fred Jensen]

On 3/21/2011 9:31 AM, Jim Brown wrote:

> Rose Kopp, XYL of Ken Kopp, K0PP, makes very nice soft cases designed
> for carry-on. One version of this case, which my neighbor, N3ZZ and I
> bought, holds a K3 and a laptop.

Rose made one for me for my K2 which I've been using for SOTA summit 
activations.  It holds the K2, paddle, W1 wattmeter/SWR bridge, a 7 Ah 
Li-ion battery, miscellaneous jumpers and adapters, and my log.  Makes a 
really great package, but not for checked baggage.  I had her put two 
pockets on the sides, and there's a big one on the back.  Really nice 
work, you choose from an array of fabric colors.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org
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Re: [Elecraft] Carrying case for a K3?

[Alexander Sack]

On Mon, Mar 21, 2011 at 12:31 PM, Jim Brown  wrote:
> On 3/21/2011 7:38 AM, Alexander Sack wrote:
>> I'd like to it on trips with me.
>> I was just curious what you guys to for an all-in-one case?
>
> Rose Kopp, XYL of Ken Kopp, K0PP, makes very nice soft cases designed
> for carry-on. One version of this case, which my neighbor, N3ZZ and I
> bought, holds a K3 and a laptop. We also bought them with extra velcro
> strips that allow two cases to be attached, so that two K3s can count as
> a single carry-on.  These cases are hand made, and are nicely finished.
> They are NOT designed to be checked luggage.  Cost is quite reasonable,
> and varies slightly with options.
>
> Many members of this list have bought Rose's cases.  Several are
> contesters who use them to travel to DX locations.
>

Jim, thank you very much.  The inquiry to Rose is in progress!  :-)

-aps
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Re: [Elecraft] Carrying case for a K3?

[Jim Brown]

On 3/21/2011 7:38 AM, Alexander Sack wrote:
> I'd like to it on trips with me.
> I was just curious what you guys to for an all-in-one case?

Rose Kopp, XYL of Ken Kopp, K0PP, makes very nice soft cases designed 
for carry-on. One version of this case, which my neighbor, N3ZZ and I 
bought, holds a K3 and a laptop. We also bought them with extra velcro 
strips that allow two cases to be attached, so that two K3s can count as 
a single carry-on.  These cases are hand made, and are nicely finished. 
They are NOT designed to be checked luggage.  Cost is quite reasonable, 
and varies slightly with options.

Many members of this list have bought Rose's cases.  Several are 
contesters who use them to travel to DX locations.

73, Jim K9YC
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Re: [Elecraft] Carrying case for a K3?

[Mike Fatchett W0MU]

I just bought the Pelican 1510, hard case with foam and the lid 
organizer.  The foam uses small blocks that you can pop out to fit most 
applications.  I have not tried to put the k3 and accessories in the 
case yet.  It has rollers and a handle and is supposed to be carry on size.

W0MU

On 3/21/2011 8:38 AM, Alexander Sack wrote:
> Hello:
>
> I just bought a K3 (waiting for it to arrive by tomorrow afternoon)
> and I'd like to use it as a semi-portable rig.  I don't mean I am
> going to be mounting in my truck but I'd like to it on trips with me.
> I was just curious what you guys to for an all-in-one case?  (K3,
> power supply, any accessories, etc. etc.).
>
> Any suggestions would be appreciated?
>
> 73's,
>
> -aps (KC2ZSX)
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Re: [Elecraft] Elecraft SSB Net results (3-20-11)

[Mike]

I didn't see the email until after 1900.  .314 was impossible between the 
frequency 
control lids and an EXTREMELY loud HA calling CQ DX just a tad below.

Oh well, maybe when the SteppIR is fixed

73, Mike NF4L

On 3/21/2011 7:57 AM, Edward R. Cole wrote:
> Phil came back to my K3/10 right away on 14.317.  I did have a
> persistent carrier on frequency which made copy a little difficult.
>
> I run 16w to a TH3mk4 at 50-feet.
>
>
> 73, Ed - KL7UW, WD2XSH/45
> ==
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
> DUBUS Magazine USA Rep dubus...@hotmail.com
> ==
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[Elecraft] K3 and Heil Microphones

[Bob DeHaney]

By the way Bob Heil is another US company owner who answers his customers
directly, at least the 5 or 6 times I've sent an email to Heil.  Also the
email was not addressed directly to him, so he keeps an eye on customer
queries.

Vy 73, Bob DJ0RD/WU5T

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Re: [Elecraft] [K2] Ooof.. Update

[Larry Kendall]

Don, thanks.

I understand about the band pass LC section and that is what perplexed me. 

Late last night I found and corrected a tiny solder short hidden under the 
connector on the KNB2 board. Of course it had to be pins 1 & 2 and you know 
what that would do.

Had to call it a night at that point per the whole work/job/employment thing 
for this morning and will reinstall into the K2 & test it tonight.

If this turns out to be the "only" problem I'll be a happy Ham.

Thanks & 73.

LK
-Original Message-
From: "Don Wilhelm" 
To: "Elecraft Reflector" 
Cc: "L Kendall" 
Sent: 3/21/2011 8:06 AM
Subject: Re: [Elecraft] [K2] Ooof..  Update

  That last R should have been R9, sorry for the typo (it is still 
morning - need more tea)

73,
Don W3FPR

On 3/21/2011 8:59 AM, Don Wilhelm wrote:
>Larry,
>
> You are trying to analyze too much in the KNB2 without looking at the
> schematic.  The signal always passes through the Bandpass Filter.  It
> only goes to the amplifier to detect noise.
> So check the toroids L1 and L2, C3, C4, C6, C7, R8 and R8.
> The RX signal should pass through the KNB2 with only those components in
> place and working.
> Also check the soldering of P1 and its mating header on the K2 RF Board
> = make certain pin 1 has been soldered on both.
>
> 73,
> Don W3FPR
>
> On 3/21/2011 1:21 AM, L Kendall wrote:
>> I'm having a similar problem after installing the KNB2.
>>
>> So, I triple checked component location and applicable polarity and all
>> solder joints for bad joints or bridged/shorted solder pads; removed,
>> checked and re-installed the 2 bandpass toroid chokes, checked the ID
>> number on the caps.
>>
>> Checked the K2 RF board J12, and checked the mods to R88, R89&   R90.
>>
>> ...and the K2 is still nearly deaf as a post.
>>
>> Next, I jumpered 1&   6 on J12 and could then hear stations all over 40
>> meters.
>>
>> Checked WWV @ 10 MHz and I thought it was going to blow the speaker
>> before I could turn down the AF gain.
>>
>> So it looks like I did not screw up the K2 itself. That is a relief.
>>
>> I'm guessing the next thing to do is check U2 for correct voltage
>> output, and if that's OK see what I can measure on the RF amp. It's an
>> SMD and mounted on one of those SMD piggy back things for PCBs made for
>> the old school DIP ICs.
>>
>> Kinda frustrating, but it happens.
>>
>> Larry
>> K5END
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, 2011-01-18 at 22:43 -0500, Don Wilhelm wrote:
>>
>>
>>> Try jumpering  (with a piece of bent wire) between pins 1 and 6 of the
>>> J12 header.  If receive comes back to life, you have a problem on the
>>> KNB2 board.
>>>
>>> Let us know the results.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>>
>>> On 1/18/2011 10:26 PM, Brian Denley wrote:
 I am beginning to think I may have wacked or damaged the PIN diode for the
 T/R switch while adding the resistor for the KNB2.  That might explain no
 receive or transmit  that I am getting now.  Does that make sense?
 Brian
 KB1VBF
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Re: [Elecraft] Carrying case for a K3?

[Alexander Sack]

On Mon, Mar 21, 2011 at 11:26 AM, Lance Collister  wrote:
> Hello Alexander,
>
> This is a problem I also am currently wrestling with.  The K3 (depending on
> options) weighs around 12 pounds by itself.  If you buy a good solid state
> switching power supply such as a 300w Meanwell HRP-300-12, you can get by
> adding only another 2-3 pounds if you include the power cord.
>
> For DOMESTIC carry-on luggage, that is not so bad, and you can easily fit it
> in a suitable carry-on bag.  For my last couple of DXpeditions, I lined the
> two roll-on carry-on bags for my wife and I with a foam pad from backpacking
> trips and other foam pieces as shown in this photo:
>
> http://www.bigskyspaces.com/w7gj/K3CarryOn.JPG
>
> The amp and wattmeter are in the bag on the left.  The K3, switching power
> supply, box with the PR6, and some thin odds and ends are in the bag on the
> right.  Note that everything was wrapped in plastic bags to waterproof the
> equipment, and carefully padded, since there were two flights in smaller
> planes where they had to be checked as baggage.  I had no problems with this
> arrangement on two separate DXpeditions.
>
> HOWEVER, the total weight (including the roller-bags) of each of these was
> around 25 pounds.  Many international airlines only permit 15 pounds TOTAL
> WEIGHT for personal carry-on luggage, and they also have much smaller
> acceptable dimensions.  Since my current switching power supply and K3
> already exceed 15 pounds before adding any packing material or a bag, this
> is a real challenge.  The amplifier and wattmeter are in the same situation.
>  Obviously, the larger switching power supply for the amplifier will have to
> continue to be shipped in a suitcase in checked baggage.
>
> I will probably have to invest in new MeanWell power supplies to shave off a
> few pounds, but still have the obstacle of needing to find some very durable
> but lightweight carry-on bag that will provide enough protection to be able
> to be checked, but still be small enough to meet the small size and weight
> requirements of new international airlines.
>
> It probably means no roller bags at all, and use of much smaller hard sided
> carry-on bags.  More of the fragile equipment (wattmeter, all power
> supplies, preamp, etc.) will have to go into checked baggage suitcases.  All
> I can say is that it doesn't take much of a case to bring your K3 up to 15
> pounds and exceed allowable international carry-on sizes!
>
> I have seen some small cases in airports that look like they would work, but
> I have not found a place to get one yet.  Please keep me posted as to what
> you come up with!  TNX and VY 73, Lance


Lance, thanks for the background.

Right now, my main goal is just to pack it in something I can carry
around with me but not necessarily on a plane (but if my setup can
serve this role, fantastic).

I guess I should be more specific about my requirements for storage
than having people shout random solutions:

- K3 unit with KAT3 (so I don't need a separate ATU, I sure hope not)
- Gamma Research HPS-1A supply
- Some portable battery supply (I have not decided yet)
- Buddistick Deluxe Package
- Power chords, feedline, MH2 mic, cables, miscellaneous smaller
items, maybe a smallish wattmeter, etc.

Future directions:
At some point, I'd like to add a Netbook with power supply in that mix
with possibly a  P3 or LP-PAN.  Sigh.  It never ends.  I already have
a large backback for computer stuff but something like the P3 or
LP-PAN would be a *nice to have* with the gear above.

The goal is to be able to pack up everything I need to deploy remotely
or bring with me on vacation (example, in the summer, I will be in
North Carolina for a week and I would like to operate.  Be great if I
had some kind of bag that could help me organize everything neatly).

Hope this make sense,

-aps
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Re: [Elecraft] Carrying case for a K3?

[Lance Collister]

Hello Alexander,

This is a problem I also am currently wrestling with.  The K3 (depending on 
options) weighs around 12 pounds by itself.  If you buy a good solid state 
switching power supply such as a 300w Meanwell HRP-300-12, you can get by
adding only another 2-3 pounds if you include the power cord.

For DOMESTIC carry-on luggage, that is not so bad, and you can easily fit it in 
a 
suitable carry-on bag.  For my last couple of DXpeditions, I lined the two 
roll-on carry-on bags for my wife and I with a foam pad from backpacking trips 
and 
other foam pieces as shown in this photo:

http://www.bigskyspaces.com/w7gj/K3CarryOn.JPG

The amp and wattmeter are in the bag on the left.  The K3, switching power 
supply, 
box with the PR6, and some thin odds and ends are in the bag on the right.  
Note 
that everything was wrapped in plastic bags to waterproof the equipment, and 
carefully padded, since there were two flights in smaller planes where they had 
to 
be checked as baggage.  I had no problems with this arrangement on two separate 
DXpeditions.

HOWEVER, the total weight (including the roller-bags) of each of these was 
around 
25 pounds.  Many international airlines only permit 15 pounds TOTAL WEIGHT for 
personal carry-on luggage, and they also have much smaller acceptable 
dimensions. 
  Since my current switching power supply and K3 already exceed 15 pounds 
before 
adding any packing material or a bag, this is a real challenge.  The amplifier 
and 
wattmeter are in the same situation.  Obviously, the larger switching power 
supply 
for the amplifier will have to continue to be shipped in a suitcase in checked 
baggage.

I will probably have to invest in new MeanWell power supplies to shave off a 
few 
pounds, but still have the obstacle of needing to find some very durable but 
lightweight carry-on bag that will provide enough protection to be able to be 
checked, but still be small enough to meet the small size and weight 
requirements 
of new international airlines.

It probably means no roller bags at all, and use of much smaller hard sided 
carry-on bags.  More of the fragile equipment (wattmeter, all power supplies, 
preamp, etc.) will have to go into checked baggage suitcases.  All I can say is 
that it doesn't take much of a case to bring your K3 up to 15 pounds and exceed 
allowable international carry-on sizes!

I have seen some small cases in airports that look like they would work, but I 
have not found a place to get one yet.  Please keep me posted as to what you 
come 
up with!  TNX and VY 73, Lance

On 3/21/2011 2:38 PM, Alexander Sack wrote:
> Hello:
>
> I just bought a K3 (waiting for it to arrive by tomorrow afternoon)
> and I'd like to use it as a semi-portable rig.  I don't mean I am
> going to be mounting in my truck but I'd like to it on trips with me.
> I was just curious what you guys to for an all-in-one case?  (K3,
> power supply, any accessories, etc. etc.).
>
> Any suggestions would be appreciated?
>
> 73's,
>
> -aps (KC2ZSX)
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>


-- 
Lance Collister, W7GJ (ex: WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
LIVE MESSENGER CHAT: w...@hotmail.com  SKYPE: lancew7gj
2m DXCC #11, 6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME email 
Google 
Group!
(or click on the link at the bottom of my web page above)

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Re: [Elecraft] Carrying case for a K3?

[Lew Phelps K6LMP]

I recently acquired a padded carrying case (not hard-sided like a Pelican) that 
suits my needs for carrying a K3 plus numerous accessories.  It costs $21.95 
from Surplus Center of Nebraska.  The interior measurements are approximately 6 
x 16 x 13, with 1/2" padding on all sides.  It's a dark blue heavy nylon.  I 
can put my K3, a power supply, headset, J-38 key, breakout box, a large 
external power/swr meter, cords, connectors, a Powerpole distribution box, and 
other goodies into the bag, with room to spare.  I wouldn't want to check the 
bag as luggage without putting it inside a protective box with padding. It fits 
easily into an overhead bin on a plane.  It meets my needs very well, and the 
the price is hard to beat.  see:  

https://www.surpluscenter.com/item.asp?item=23-1201&catname=


73

Lew K6LMP

On Mar 21, 2011, at 7:38 AM, Alexander Sack wrote:

> Hello:
> 
> I just bought a K3 (waiting for it to arrive by tomorrow afternoon)
> and I'd like to use it as a semi-portable rig.  I don't mean I am
> going to be mounting in my truck but I'd like to it on trips with me.
> I was just curious what you guys to for an all-in-one case?  (K3,
> power supply, any accessories, etc. etc.).
> 
> Any suggestions would be appreciated?
> 
> 73's,
> 
> -aps (KC2ZSX)
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[Elecraft] Carrying case for a K3?

[Alexander Sack]

Hello:

I just bought a K3 (waiting for it to arrive by tomorrow afternoon)
and I'd like to use it as a semi-portable rig.  I don't mean I am
going to be mounting in my truck but I'd like to it on trips with me.
I was just curious what you guys to for an all-in-one case?  (K3,
power supply, any accessories, etc. etc.).

Any suggestions would be appreciated?

73's,

-aps (KC2ZSX)
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Re: [Elecraft] K3 & Heil headset

[Adriano]

I use the proset plus w/ K3. Work´s really great (better for dx w/ the hc-4 
on)
Also w/ the SUB on i can hear both qrg´s one on each ear - perfect !!! Of 
course w/ the SUB RX installed.
It goes directly to the back of the rig.
I gotta the kenwood adpater just in case ( if i want to plug the headset on 
the front).

73´s and GL de PY2ADR / ZY2C
- Original Message - 
From: "Sfbonk" 
To: ; 
Sent: Monday, March 21, 2011 10:50 AM
Subject: Re: [Elecraft] K3 & Heil headset


>
> I'm using my old Pro Set iC (it is an electret, so I switch on power to 
> it) which works great with the K3. Use a foot switch into the back. I sold 
> the Heil iC adaptor since the mic plugs into the back panel and I use a 
> 1/4" to miniature adaptor on the front for the headphones. I also use a 
> Heil desk mike for casual operating (another electret element), and it 
> plugs into the front panel mic jack and I use the K3 setup to switch 
> between front and rear mic.
>
> 73 de, W3OU Steve
>
>
>
>
> -Original Message-
> From: Kate Hutton 
> To: elecraft@mailman.qth.net
> Sent: Mon, Mar 21, 2011 12:49 am
> Subject: [Elecraft] K3 & Heil headset
>
>
> My new K3 works great on CW - love the way it sounds & the intuitively
> ogical controls - but I'm trying to figure out what part I need if any to
> onnect my Heil Pro headset, with a PTT hand trigger.  I see a larger 
> stereo
> lug coming from the PTT switch & a small one coming from the heaset (1
> ire), which currently go to a Yaesu adapter to my old rig.  The other two
> ires to the headset appear to be for the earphones (small stereo plug).
> Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore the
> -pin connector on the front?
> Sorry if it is a dumb question.
> 73 Kate K6HTN
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[Elecraft] K3 100 for sale

[Kjeld Holm]

To all it may concern,

 

Elecraft K3 - HF/6m - 100 W  serial number 2334 in mint condition for sale. 

KAT3-F, KRX3-F Subreceiver, KPA3 100 , KVX3-XVTR RX/IO, KDVR3 digital voice
recorder.

Filters in main receiver 13 kHz (FM), 6 kHz (AM), 2,8 kHz (SSB), 2,1 kHz
(narrow SSB), 400 Hz (digital and CW). Filters in subreceiver 6 kHz (AM) and
2,7 kHz.

I am asking 21,500 DKK plus shipping.

 

The reason for sale is that this was my backup rig during upgrade of "my
own" rig.

 

Contact me off the list.

 

Best regards

OZ1CCM, Kjeld Holm

 

Gyvelbakken 11

DK-4400 Kalundborg

Denmark

Tel.: (+45) 30 49 39 64

Fax:  (+45) 45 82 96 37

e-mail:   k...@kh-translation.dk

Homepage: www.kh-translation.dk  

 

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Re: [Elecraft] K3 & Heil headset

[Sfbonk]

I'm using my old Pro Set iC (it is an electret, so I switch on power to it) 
which works great with the K3. Use a foot switch into the back. I sold the Heil 
iC adaptor since the mic plugs into the back panel and I use a 1/4" to 
miniature adaptor on the front for the headphones. I also use a Heil desk mike 
for casual operating (another electret element), and it plugs into the front 
panel mic jack and I use the K3 setup to switch between front and rear mic.
 
73 de, W3OU Steve




-Original Message-
From: Kate Hutton 
To: elecraft@mailman.qth.net
Sent: Mon, Mar 21, 2011 12:49 am
Subject: [Elecraft] K3 & Heil headset


My new K3 works great on CW - love the way it sounds & the intuitively
ogical controls - but I'm trying to figure out what part I need if any to
onnect my Heil Pro headset, with a PTT hand trigger.  I see a larger stereo
lug coming from the PTT switch & a small one coming from the heaset (1
ire), which currently go to a Yaesu adapter to my old rig.  The other two
ires to the headset appear to be for the earphones (small stereo plug).
Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore the
-pin connector on the front?
Sorry if it is a dumb question.
73 Kate K6HTN
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Re: [Elecraft] [K3] Auto-Tuner Recommendations...

[PKA]

The K3 ATU is not always stopping at the optimum LC combination.

However, it does not stop too far off. In some cases (rainy weather) I have 
noticed that it stops at SWR=1,4 even when there is an LC combination giving 
SWR=1,0.
I don't see it as a big problem. But it is annoying when using remote control, 
if the RC program is not showing SWR very well (this may be the case when using 
HRD over remote desktop)
73, Poul-Erik OZ4UN

-Oprindelig meddelelse-
Fra: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] 
På vegne af Doug Person
Sendt: 20. marts 2011 18:29
Til: elecraft@mailman.qth.net
Emne: Re: [Elecraft] [K3] Auto-Tuner Recommendations...

I really prefer the LDG tuners over the MFJ.  I have several and they all work 
well. I also have an MFJ tuner so my comparison is based on side-by-side 
operation.  Right now, I have the AT-600Pro in line with the K3/100 and the the 
Ameritron ALS-600. I have very good results running into a 160 feet doublet fed 
with good quality 300 ohm twinlead.  
I have a DX Engineering 1:1 current balun inline after the tuner.  This is a 
very effective setup.

73, Doug -- K0DXV

On 3/20/2011 10:33 AM, Phil Hystad wrote:
> I am waiting for the KAT500 like many others but I may still want to buy an 
> auto tuner for my K3 now if the KAT500 is a ways off.  Actually, I may even 
> want two auto-tuners (or, maybe not).  But, I also have my backup rig, an 
> Icom 756 Pro III plus Icom PW-1 for any SSB I do with power.  So, an 
> auto-tuner hefty enough for a 1 KW signal might be useful.
>
> Alternatively, if the quality is good and the price reasonable (under $500) I 
> might consider a 100 to 200 watt class auto-tuner.
>
> The Palstar AT-Auto is expensive and sophisticated but I hear that it does 
> not work with the K3 (at least, I work in the fashion expected).  I know of 
> the MFJ auto tuner too but I am not sure how that works with the K3 so I am 
> looking for any users out there in K3-land who might comment.
>
> 73, phil, K7PEH
>
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Re: [Elecraft] K3 & Heil headset

[Larry stowell]

Kate

I have your set up and ask Heil this is there reply from Bob Heil

"You will need the AD-1 K for the K3  (same pin out as Kenwood).
The headphones are stereo and will work for dual reception PLU 
they have our exclusive Phase Reversal.  Great match for the K3"

73 Larry K1ZW

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kate
Hutton
Sent: Monday, March 21, 2011 12:50 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 & Heil headset

My new K3 works great on CW - love the way it sounds & the intuitively
logical controls - but I'm trying to figure out what part I need if any to
connect my Heil Pro headset, with a PTT hand trigger.  I see a larger stereo
plug coming from the PTT switch & a small one coming from the heaset (1
wire), which currently go to a Yaesu adapter to my old rig.  The other two
wires to the headset appear to be for the earphones (small stereo plug).

Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore the
8-pin connector on the front?

Sorry if it is a dumb question.

73 Kate K6HTN
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Re: [Elecraft] [K2] Ooof.. Update

[Don Wilhelm]

  That last R should have been R9, sorry for the typo (it is still 
morning - need more tea)

73,
Don W3FPR

On 3/21/2011 8:59 AM, Don Wilhelm wrote:
>Larry,
>
> You are trying to analyze too much in the KNB2 without looking at the
> schematic.  The signal always passes through the Bandpass Filter.  It
> only goes to the amplifier to detect noise.
> So check the toroids L1 and L2, C3, C4, C6, C7, R8 and R8.
> The RX signal should pass through the KNB2 with only those components in
> place and working.
> Also check the soldering of P1 and its mating header on the K2 RF Board
> = make certain pin 1 has been soldered on both.
>
> 73,
> Don W3FPR
>
> On 3/21/2011 1:21 AM, L Kendall wrote:
>> I'm having a similar problem after installing the KNB2.
>>
>> So, I triple checked component location and applicable polarity and all
>> solder joints for bad joints or bridged/shorted solder pads; removed,
>> checked and re-installed the 2 bandpass toroid chokes, checked the ID
>> number on the caps.
>>
>> Checked the K2 RF board J12, and checked the mods to R88, R89&   R90.
>>
>> ...and the K2 is still nearly deaf as a post.
>>
>> Next, I jumpered 1&   6 on J12 and could then hear stations all over 40
>> meters.
>>
>> Checked WWV @ 10 MHz and I thought it was going to blow the speaker
>> before I could turn down the AF gain.
>>
>> So it looks like I did not screw up the K2 itself. That is a relief.
>>
>> I'm guessing the next thing to do is check U2 for correct voltage
>> output, and if that's OK see what I can measure on the RF amp. It's an
>> SMD and mounted on one of those SMD piggy back things for PCBs made for
>> the old school DIP ICs.
>>
>> Kinda frustrating, but it happens.
>>
>> Larry
>> K5END
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, 2011-01-18 at 22:43 -0500, Don Wilhelm wrote:
>>
>>
>>> Try jumpering  (with a piece of bent wire) between pins 1 and 6 of the
>>> J12 header.  If receive comes back to life, you have a problem on the
>>> KNB2 board.
>>>
>>> Let us know the results.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>>
>>> On 1/18/2011 10:26 PM, Brian Denley wrote:
 I am beginning to think I may have wacked or damaged the PIN diode for the
 T/R switch while adding the resistor for the KNB2.  That might explain no
 receive or transmit  that I am getting now.  Does that make sense?
 Brian
 KB1VBF
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Re: [Elecraft] [K2] Ooof.. Update

[Don Wilhelm]

  Larry,

You are trying to analyze too much in the KNB2 without looking at the 
schematic.  The signal always passes through the Bandpass Filter.  It 
only goes to the amplifier to detect noise.
So check the toroids L1 and L2, C3, C4, C6, C7, R8 and R8.
The RX signal should pass through the KNB2 with only those components in 
place and working.
Also check the soldering of P1 and its mating header on the K2 RF Board 
= make certain pin 1 has been soldered on both.

73,
Don W3FPR

On 3/21/2011 1:21 AM, L Kendall wrote:
> I'm having a similar problem after installing the KNB2.
>
> So, I triple checked component location and applicable polarity and all
> solder joints for bad joints or bridged/shorted solder pads; removed,
> checked and re-installed the 2 bandpass toroid chokes, checked the ID
> number on the caps.
>
> Checked the K2 RF board J12, and checked the mods to R88, R89&  R90.
>
> ...and the K2 is still nearly deaf as a post.
>
> Next, I jumpered 1&  6 on J12 and could then hear stations all over 40
> meters.
>
> Checked WWV @ 10 MHz and I thought it was going to blow the speaker
> before I could turn down the AF gain.
>
> So it looks like I did not screw up the K2 itself. That is a relief.
>
> I'm guessing the next thing to do is check U2 for correct voltage
> output, and if that's OK see what I can measure on the RF amp. It's an
> SMD and mounted on one of those SMD piggy back things for PCBs made for
> the old school DIP ICs.
>
> Kinda frustrating, but it happens.
>
> Larry
> K5END
>
>
>
>
>
>
>
>
>
> On Tue, 2011-01-18 at 22:43 -0500, Don Wilhelm wrote:
>
>
>> Try jumpering  (with a piece of bent wire) between pins 1 and 6 of the
>> J12 header.  If receive comes back to life, you have a problem on the
>> KNB2 board.
>>
>> Let us know the results.
>>
>> 73,
>> Don W3FPR
>>
>>
>> On 1/18/2011 10:26 PM, Brian Denley wrote:
>>> I am beginning to think I may have wacked or damaged the PIN diode for the
>>> T/R switch while adding the resistor for the KNB2.  That might explain no
>>> receive or transmit  that I am getting now.  Does that make sense?
>>> Brian
>>> KB1VBF
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Re: [Elecraft] K3 & Heil headset

[David Ferrington, M0XDF]

Or use VOX instead of PTT - with the Proset, that works extremely well.
73 de M0XDF, K3 #174, P3 #108
-- 
Our society must make it right and possible for old people not to fear the 
young or be deserted by them, for the test of a civilization is the way that it 
cares for its helpless members. -Pearl S. Buck, Nobelist novelist (1892-1973)

On 21 Mar 2011, at 12:46, nr4c wrote:

> Hi, Kate.
> 
> You have two choices for this.  One, as you have already figured, plug 
> the mic into the MIC on the back, Phones into the PHONES on the back, 
> and get an adapter to adapt the 1/4 inch PTT plug on the headset to the 
> RCA plug on the back of the K3.
> 
> The other approach is to get a Kenwood headset adapter from Heil, and 
> use it with the front panel 8-pin connector, and the phones jack on the 
> front panel (with maybe the appropriate adapter 1/8 stereo to 1/4 inch 
> stereo). Note that K3 headphones AND speaker out is STEREO.  Do NOT plug 
> a MONO plug into the SPEAKER OUT jack on the rear of the K3.  Don't ask 
> me how I know this.
> 
> FYI:  The K3 is designed to accommodate a built-in Sub-Receiver and 
> normally places main receiver audio mostly in the left ear.  And, when 
> you add the second receiver, you hear the audio in the right ear.  Works 
> very well.
> 
> I hope you enjoy your K3 as much as I've enjoyed mine.
> 
> Good luck
> 
> ,.,.,bill   nr4c
> 
> 
> 
> On Sun, 20 Mar 2011 21:49:54 -0700, Kate Hutton wrote:
>> My new K3 works great on CW - love the way it sounds & the 
>> intuitively
>> logical controls - but I'm trying to figure out what part I need if 
>> any to
>> connect my Heil Pro headset, with a PTT hand trigger.  I see a larger 
>> stereo
>> plug coming from the PTT switch & a small one coming from the heaset 
>> (1
>> wire), which currently go to a Yaesu adapter to my old rig.  The 
>> other two
>> wires to the headset appear to be for the earphones (small stereo 
>> plug).
>> 
>> Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore 
>> the
>> 8-pin connector on the front?
>> 
>> Sorry if it is a dumb question.

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Re: [Elecraft] Installed K3EXREF

[George Dubovsky]

List,

I know a thing or three about those Trimble T'bolts; I am a design engineer
for the company that made the (previous generation) equipment that is now
being surplussed in several parts of the world. There is no domestic or
Chinese thunderbolt; there is the commercial version (silver and red case
with internal dc-dc converter - runs off of 24 VDC) and the OEM version
(thin gold case, sometimes with the original 3 dB splitter still attached to
the case, no power supply). The OEM version being surplussed contains the
same GPSDO guts as the commercial version, with two exceptions: the power
connector is on the opposite side of the pwb, and one Zener diode is changed
to move the trip point for the DC Power alarm to a lower value. Also, the
newer units have a later date code Dallas Semi temp sensor that does not
report temperature in the finer steps of the earlier date codes - this is
not an issue for most folks.

The OEM units require +5 , +12, and -7 to -12 VDC at modest current
requirements. It is easy to find a surplus power supply that supports these
units and it is just as easy to roll your own. I usually have a few tested
OEM units available for sale, with or without the gold case (if you want to
build it into your own cabinet).

In addition, if you want the ultimate K3 accessory, I have a NIB Symmetricom
Starloc II Plus, GPS-disciplined Rubidium oscillator for sale.

Let me know if you want to know anything else about the Thunderbolt, or if
you want one of your own.

73,

geo - n4ua

On Sun, Mar 20, 2011 at 9:05 PM, Jerry Muller  wrote:

> This was an excellent explanation.
>
> I got a Trimble Thunderbolt off eBay for less than 200 bucks. It came from
> China and came with an antenna and power supply. If you are going to get
> one
> of the ones that come from China, make sure you get the power supply with
> it. The domestic Thunderbolts have a unipolar supply but the ones from
> China
> were specials and require a special bipolar power supply. As long as you're
> getting the power supply with it, you're OK. I have not noticed any noise
> from the power supply from China. I expect ferrites may solve the problem
> if
> found.
>
> It works just fine with the stock Thunderbolt software. I've had mine for
> about 6 months and I've run tests using the Thunderbolt software. The PC
> monitoring software allows you to monitor the errors detected and log them.
> The accuracy is quite good. Although I see occasional errors greater than 1
> part in 10^9, most of the measured errors are far less than 1 part in 10^9.
> I can't find any of the spreadsheets I generated (from many hours of
> operation) right now but I seem to recall that 1 sigma was down around 1
> part in 10^10. This translates into a 1 Hz error at 10 GHz. The +/- 1 Hz
> error in the K3 is much greater than the accuracy of the GPSDO
>
> My primary reason for getting the GPSDO was for microwave and EME
> operations. Being able to use it with the K3 is a plus. I'm likely to be an
> early adopter of the production units when they become available. I will
> probably order my second K3 with a K3EXREF.
>
> Jerry - K0TV
>
> - Original Message -
> From: "Paul Christensen" 
> To: 
> Sent: Saturday, March 19, 2011 9:34 PM
> Subject: Re: [Elecraft] Installed K3EXREF
>
>
> >I installed it on Friday in about 30 minutes, but I'm comfortable with my
> > way around the K3.  I would think that most users could install it in
> > about
> > an hour or less.  Installation is actually very simple with very few
> parts
> > involved.  K3EXREF came with an SMA connector and SMA to BNC
> > between-series
> > adapter.
> >
> > Performance is exactly as promised by Elecraft.  Although K3EXREF will
> not
> > phase lock the K3 to the external frequency source, I'm finding that it
> > stays within 1 Hz on 20m when locked to CHU at 14.670 MHz.   I'm also
> > finding that testing for zero-beat to WWV at 10 MHz is not a good idea in
> > my
> > shack, and perhaps yours too.  There are many 10 MHz signals being
> emitted
> > by nearby appliances, LAN routers, security system, Ethernet boards, etc.
> > That common, even frequency is everywhere in a household these days.
> >
> > In much of North America, CHU is an excellent source for testing since it
> > keeps cesium accuracy like WWV but the odd frequency of CHU is a real
> > benefit since the chance for beating against extraneous signals is much
> > smaller than at 10 MHz.  Testing at a higher frequency rather than say
> the
> > MW broadcast band also provides for a reasonably good account of how the
> > K3EXREF performs.   After installation, I would also suggest not trying
> to
> > test zero beat K3EXREF against commercial MW or SW BC stations since
> their
> > carriers are allowed to deviate much more than the cesium-based time and
> > frequency standards of CHU and WWV.  Commercial AM broadcast station
> > frequencies are typically only accurate to about +/- 20 Hz although most
> > are
> > better than that.
> >
> > The K

Re: [Elecraft] K3 & Heil headset

[nr4c]

 Hi, Kate.

 You have two choices for this.  One, as you have already figured, plug 
 the mic into the MIC on the back, Phones into the PHONES on the back, 
 and get an adapter to adapt the 1/4 inch PTT plug on the headset to the 
 RCA plug on the back of the K3.

 The other approach is to get a Kenwood headset adapter from Heil, and 
 use it with the front panel 8-pin connector, and the phones jack on the 
 front panel (with maybe the appropriate adapter 1/8 stereo to 1/4 inch 
 stereo). Note that K3 headphones AND speaker out is STEREO.  Do NOT plug 
 a MONO plug into the SPEAKER OUT jack on the rear of the K3.  Don't ask 
 me how I know this.

 FYI:  The K3 is designed to accommodate a built-in Sub-Receiver and 
 normally places main receiver audio mostly in the left ear.  And, when 
 you add the second receiver, you hear the audio in the right ear.  Works 
 very well.

 I hope you enjoy your K3 as much as I've enjoyed mine.

 Good luck

 ,.,.,bill   nr4c



 On Sun, 20 Mar 2011 21:49:54 -0700, Kate Hutton wrote:
> My new K3 works great on CW - love the way it sounds & the 
> intuitively
> logical controls - but I'm trying to figure out what part I need if 
> any to
> connect my Heil Pro headset, with a PTT hand trigger.  I see a larger 
> stereo
> plug coming from the PTT switch & a small one coming from the heaset 
> (1
> wire), which currently go to a Yaesu adapter to my old rig.  The 
> other two
> wires to the headset appear to be for the earphones (small stereo 
> plug).
>
> Can I use "PTT IN", "STEREO PHONES" & "MIC" on the back & just ignore 
> the
> 8-pin connector on the front?
>
> Sorry if it is a dumb question.
>
> 73 Kate K6HTN
> __
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Re: [Elecraft] K3 & Heil headset

[Tony Estep]

On Sun, Mar 20, 2011 at 11:49 PM, Kate Hutton  wrote:

> ...to connect my Heil Pro headset, with a PTT hand trigger


Well, here's one solution. I got a 1/4" plug and a little red pushbutton
momentary-contact switch (total cost at Gateway Electronics, 3 bucks). The
switch is round and has the same diameter as the plug housing. Sawed about
1/2" off the top of the plug housing , wired the switch to do PTT, epoxied
it in line with the housing, and shrank some heat-shrink tubing over the
joint. It looks like a professional piece of gear and fits one's hand
perfectly.

73,
Tony KT0NY
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[Elecraft] Installed K3EXREF

[Johnny Siu]

Hello Edward,

Just a quick question.  Would the existing K3 + TCXO3-1 + K144V be good enough 
for casual SSB operation in 2m?  How would this combination be compared with 
modern V/U radio equipped with OCXO such as Icom IC9100 in terms of frequency 
stability in 2 m ?

Can I understand that K3EXPEF is only required for GHz operation?

Thanks for your advice in advance.
 cheers, 


Johnny VR2XMC 





寄件人﹕ Edward R. Cole 
收件人﹕ Elecraft@mailman.qth.net
傳送日期﹕ 2011/3/21 (一) 7:51:37 PM
主題： [Elecraft] Installed K3EXREF

Matt,

I agree that the biggest challenge is getting UHF and mw LO's to be 
on frequency.  Due to the multiplication of the LO, any inaccuracy or 
instability is magnified.  But it is just as important that the IF 
radio used with those transverters have good frequency 
characteristics as they are translated up to the operating frequency.

Another little annoyance is operating on nets where stations are all 
over the place in frequency.  As NC it is tough to keep tuning each 
offset out in a quick paced round table style net.  I host a 2m-SSB 
net where a couple stations insist on being 100-Hz low (they maintain 
their radio dial says they are "on-freq").  With the K3EXREF and a 
PLL locked transverter I can be assured that my frequency is correct.

Also, operating any mode that has a high duty cycle of key-down 
causes temperature related drift.  K3EXREF will solve that.  The 
K3EXREF is both accurate and stabile in freq.

73, Ed - KL7UW

--

Message: 37
Date: Sun, 20 Mar 2011 18:40:52 -0700
From: Matt Zilmer 
Subject: Re: [Elecraft] Installed K3EXREF
To: "Jerry Muller" 
Cc: elecraft@mailman.qth.net
Message-ID: 
Content-Type: text/plain; charset=us-ascii

Most of the applications where "extreme accuracy" is really needed are
transverters at microwave freqs.  That is a lot of the feedback
received here.  I believe that.  It makes the most sense.

A couple of PPM is plenty good for HF, imho.  But there are those of
us that have the frequency fetish.  See the FMT for example.  Dunno
how many OO's have the capability to measure overall output to within
a few Hz, nor how many can measure amplitudes to required levels of
suppression.  There must be some, and some are K3 owners.

I got cited once, in 1973 by the FCC monitoring station in Kingsville,
TX, when my dial marker was off by about 1 KHz.  With the K3, nothing
like that is a worry.  But the K3EXREF makes it a certainty that you
will have no excuse

73,
matt W6NIA
K3 #24



73, Ed - KL7UW, WD2XSH/45
==
BP40IQ  500 KHz - 10-GHz  www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubus...@hotmail.com
==
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[Elecraft] Elecraft SSB Net results (3-20-11)

[Edward R. Cole]

Phil came back to my K3/10 right away on 14.317.  I did have a 
persistent carrier on frequency which made copy a little difficult.

I run 16w to a TH3mk4 at 50-feet.


73, Ed - KL7UW, WD2XSH/45
==
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubus...@hotmail.com
==
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[Elecraft] Installed K3EXREF

[Edward R. Cole]

Matt,

I agree that the biggest challenge is getting UHF and mw LO's to be 
on frequency.  Due to the multiplication of the LO, any inaccuracy or 
instability is magnified.  But it is just as important that the IF 
radio used with those transverters have good frequency 
characteristics as they are translated up to the operating frequency.

Another little annoyance is operating on nets where stations are all 
over the place in frequency.  As NC it is tough to keep tuning each 
offset out in a quick paced round table style net.  I host a 2m-SSB 
net where a couple stations insist on being 100-Hz low (they maintain 
their radio dial says they are "on-freq").  With the K3EXREF and a 
PLL locked transverter I can be assured that my frequency is correct.

Also, operating any mode that has a high duty cycle of key-down 
causes temperature related drift.  K3EXREF will solve that.  The 
K3EXREF is both accurate and stabile in freq.

73, Ed - KL7UW

--

Message: 37
Date: Sun, 20 Mar 2011 18:40:52 -0700
From: Matt Zilmer 
Subject: Re: [Elecraft] Installed K3EXREF
To: "Jerry Muller" 
Cc: elecraft@mailman.qth.net
Message-ID: 
Content-Type: text/plain; charset=us-ascii

Most of the applications where "extreme accuracy" is really needed are
transverters at microwave freqs.  That is a lot of the feedback
received here.  I believe that.  It makes the most sense.

A couple of PPM is plenty good for HF, imho.  But there are those of
us that have the frequency fetish.  See the FMT for example.  Dunno
how many OO's have the capability to measure overall output to within
a few Hz, nor how many can measure amplitudes to required levels of
suppression.  There must be some, and some are K3 owners.

I got cited once, in 1973 by the FCC monitoring station in Kingsville,
TX, when my dial marker was off by about 1 KHz.  With the K3, nothing
like that is a worry.  But the K3EXREF makes it a certainty that you
will have no excuse

73,
matt W6NIA
K3 #24



73, Ed - KL7UW, WD2XSH/45
==
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubus...@hotmail.com
==
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Re: [Elecraft] K3 and Field Day

[Gary Gregory]

*Hey now Jeffy..steady on  mateyou drank all the beer while I was
yakking to Eric!...

WARNING!..Do NOT let Jeff guard your beer...

:-)

73's
Gary
*
On 21 March 2011 19:32, Jeff Cochrane - VK4BOF wrote:

>  I can attest to the fact that Gary's head swelled somethin' wicked but I
> reckon it was closer to 10ft than 8! :)
> Great fun was had and lots of beer was consumed over the
> weekendwe even got to use our K3's occasionally too!
>
>
>
> Jeff Cochrane - VK4BOF
> Elecraft K3 # 4257
>
> - Original Message -
> *From:* Gary Gregory 
> *To:* Elecraft 
> *Sent:* Monday, March 21, 2011 7:23 PM
> *Subject:* [Elecraft] K3 and Field Day
>
> *Hi to the list,
>
> I am very proud to announce that God spoke to me yesterday on 10M with a K3
> and a KPA-500...
>
> I can tell you all, Eric has a superb signal...I was knocked for six when
> he
> came up on frequency.
>
> He is not only a BIG signal with the SteppIR and the KPA-500, but he is
> such
> a great guy to chat with and I had just a small issue with trying to fit my
> head back in the fild day shack and it was only 8 feet wide in the
> doorway...:-)
>
> You just gotta ask yourself one question eh?what other company has an
> owner who actually speaks on their radio to us little folks...I am
> inpressed
> let me tell you.
>
> Oh, and he did promise to help alleviate some more dollars from my bank
> account too!
>
> Just had to brag guy's.
>
> Wonder if he will QSL with me?
>
> 73's
>
> Gary
> *
> --
>
> *VK4FD - Motorhome Mobile
> Elecraft Equipment
> K3 #679, KPA-500 #018
> Living the dream!!!*
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
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>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>


-- 

*VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!*
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Re: [Elecraft] K3 and Field Day

[Jeff Cochrane - VK4BOF]

I can attest to the fact that Gary's head swelled somethin' wicked but I reckon 
it was closer to 10ft than 8! :)
Great fun was had and lots of beer was consumed over the weekendwe 
even got to use our K3's occasionally too!



Jeff Cochrane - VK4BOF
Elecraft K3 # 4257
  - Original Message - 
  From: Gary Gregory 
  To: Elecraft 
  Sent: Monday, March 21, 2011 7:23 PM
  Subject: [Elecraft] K3 and Field Day


  *Hi to the list,

  I am very proud to announce that God spoke to me yesterday on 10M with a K3
  and a KPA-500...

  I can tell you all, Eric has a superb signal...I was knocked for six when he
  came up on frequency.

  He is not only a BIG signal with the SteppIR and the KPA-500, but he is such
  a great guy to chat with and I had just a small issue with trying to fit my
  head back in the fild day shack and it was only 8 feet wide in the
  doorway...:-)

  You just gotta ask yourself one question eh?what other company has an
  owner who actually speaks on their radio to us little folks...I am inpressed
  let me tell you.

  Oh, and he did promise to help alleviate some more dollars from my bank
  account too!

  Just had to brag guy's.

  Wonder if he will QSL with me?

  73's

  Gary
  *
  -- 

  *VK4FD - Motorhome Mobile
  Elecraft Equipment
  K3 #679, KPA-500 #018
  Living the dream!!!*
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[Elecraft] K3 and Field Day

[Gary Gregory]

*Hi to the list,

I am very proud to announce that God spoke to me yesterday on 10M with a K3
and a KPA-500...

I can tell you all, Eric has a superb signal...I was knocked for six when he
came up on frequency.

He is not only a BIG signal with the SteppIR and the KPA-500, but he is such
a great guy to chat with and I had just a small issue with trying to fit my
head back in the fild day shack and it was only 8 feet wide in the
doorway...:-)

You just gotta ask yourself one question eh?what other company has an
owner who actually speaks on their radio to us little folks...I am inpressed
let me tell you.

Oh, and he did promise to help alleviate some more dollars from my bank
account too!

Just had to brag guy's.

Wonder if he will QSL with me?

73's

Gary
*
-- 

*VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!*
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Re: [Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole filter

[Gary Gregory]

*aaah..there you are mate!

David...Jeff has a serious issue..well many actually..being my mate is just
one of them...:-)

73's
Gary
*
On 21 March 2011 19:12, Jeff Cochrane - VK4BOF wrote:

> Hi David,
> Been there, tried that.
>
> Unfortunately, ADHD makes life challenging sometimes and some of those
> challenges are insurmountable.
> I do have a redeeming factor though, I can gasbag on the air for
> hours...just ask Gary VK4FD. :-)
> (SSB rocks my world!)
>
> Jeff Cochrane - VK4BOF
> Elecraft K3 # 4257 + PR6 + K144XV = The best darned thing since sliced
> bread! ('cept maybe a fully loaded K3 + P3 + KPA500)
>
>  - Original Message -
>  From: David Herring
>  To: Jeff Cochrane - VK4BOF
>  Cc: elecraft@mailman.qth.net
>  Sent: Monday, March 21, 2011 6:50 PM
>  Subject: Re: [Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole
> filter
>
>
>  Hey Jeff,
>
>  Before you write off CW, have you tried Code Quick by Jerry Wheeler,
> W6TJP?
>
>  I just recently decided to get serious about learning CW again (I once
> knew it barely well enough to pass the FCC 13 wpm test, but that was around
> 30 years ago, it was painful and I swore I'd never do it again!).  I've been
> using his software and audios, and I've gone from zero to solid 5 wpm copy
> in about 10 days.  I'm now focusing on bringing up my speed.
>
>  If you follow what he says in this thing, you will likely feel silly and
> may think some of it is asinine, but if you can get past that, it really
> seems to work. He says his passion in life is studying how people learn.
>  Code Quick I guess is based upon his research in that field.  It's fair to
> say his method of teaching code is "different."
>
>  Anyway, I have no financial ties with Code Quick or W6TJP. I am using it
> and have gained surprisingly good results. And he's been very responsive to
> my questions.
>
>  As always, "Your Mileage May Vary."
>
>  73,
>  Dave,  AH6TD
>
>
>  On Mar 20, 2011, at 12:55 PM, Jeff Cochrane - VK4BOF wrote:
>
>  > Hi everyone,
>  > After trying for the past few months to learn CW I have finally decided
> to write the idea of me learning CW off as a bad idea as it appears that I
> rythmically challenged and just cannot get my head around it.  (I'd also
> make a very bad Catholic too but lets not go there!) :-)
>  >
>  > So, I'd like to swap my 8 pole 400HZ CW filter  for a 1.8KHz 8 pole
> filter.
>  > I will pay the postage cost to send my filter to you if you do the same
> with your filter that you send to me.
>  >
>  > Please contact me off-list.
>  >
>  > Thanks for your time,
>  > Jeff Cochrane - VK4BOF
>  > Elecraft K3 # 4257 + PR6 + K144XV = multiband greatness!
>  > __
>  > 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
> __
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>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 

*VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!*
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Re: [Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole filter

[Jeff Cochrane - VK4BOF]

Hi David,
Been there, tried that.

Unfortunately, ADHD makes life challenging sometimes and some of those 
challenges are insurmountable.
I do have a redeeming factor though, I can gasbag on the air for 
hours...just ask Gary VK4FD. :-)
(SSB rocks my world!)

Jeff Cochrane - VK4BOF
Elecraft K3 # 4257 + PR6 + K144XV = The best darned thing since sliced bread! 
('cept maybe a fully loaded K3 + P3 + KPA500)

  - Original Message - 
  From: David Herring 
  To: Jeff Cochrane - VK4BOF 
  Cc: elecraft@mailman.qth.net 
  Sent: Monday, March 21, 2011 6:50 PM
  Subject: Re: [Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole 
filter


  Hey Jeff,

  Before you write off CW, have you tried Code Quick by Jerry Wheeler, W6TJP?

  I just recently decided to get serious about learning CW again (I once knew 
it barely well enough to pass the FCC 13 wpm test, but that was around 30 years 
ago, it was painful and I swore I'd never do it again!).  I've been using his 
software and audios, and I've gone from zero to solid 5 wpm copy in about 10 
days.  I'm now focusing on bringing up my speed.

  If you follow what he says in this thing, you will likely feel silly and may 
think some of it is asinine, but if you can get past that, it really seems to 
work. He says his passion in life is studying how people learn.  Code Quick I 
guess is based upon his research in that field.  It's fair to say his method of 
teaching code is "different."

  Anyway, I have no financial ties with Code Quick or W6TJP. I am using it and 
have gained surprisingly good results. And he's been very responsive to my 
questions.

  As always, "Your Mileage May Vary."

  73,
  Dave,  AH6TD


  On Mar 20, 2011, at 12:55 PM, Jeff Cochrane - VK4BOF wrote:

  > Hi everyone,
  > After trying for the past few months to learn CW I have finally decided to 
write the idea of me learning CW off as a bad idea as it appears that I 
rythmically challenged and just cannot get my head around it.  (I'd also make a 
very bad Catholic too but lets not go there!) :-)
  > 
  > So, I'd like to swap my 8 pole 400HZ CW filter  for a 1.8KHz 8 pole filter.
  > I will pay the postage cost to send my filter to you if you do the same 
with your filter that you send to me.
  > 
  > Please contact me off-list.
  > 
  > Thanks for your time,
  > Jeff Cochrane - VK4BOF
  > Elecraft K3 # 4257 + PR6 + K144XV = multiband greatness!
  > __
  > Elecraft mailing list
  > Home: http://mailman.qth.net/mailman/listinfo/elecraft
  > Help: http://mailman.qth.net/mmfaq.htm
  > Post: mailto:Elecraft@mailman.qth.net
  > 
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  > Please help support this email list: http://www.qsl.net/donate.html
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Re: [Elecraft] [K3} Swap - 8 pole 400Hz filter for 1.8KHz 8 pole filter

[David Herring]

Hey Jeff,

Before you write off CW, have you tried Code Quick by Jerry Wheeler, W6TJP?

I just recently decided to get serious about learning CW again (I once knew it 
barely well enough to pass the FCC 13 wpm test, but that was around 30 years 
ago, it was painful and I swore I'd never do it again!).  I've been using his 
software and audios, and I've gone from zero to solid 5 wpm copy in about 10 
days.  I'm now focusing on bringing up my speed.

If you follow what he says in this thing, you will likely feel silly and may 
think some of it is asinine, but if you can get past that, it really seems to 
work. He says his passion in life is studying how people learn.  Code Quick I 
guess is based upon his research in that field.  It's fair to say his method of 
teaching code is "different."

Anyway, I have no financial ties with Code Quick or W6TJP. I am using it and 
have gained surprisingly good results. And he's been very responsive to my 
questions.

As always, "Your Mileage May Vary."

73,
Dave,  AH6TD


On Mar 20, 2011, at 12:55 PM, Jeff Cochrane - VK4BOF wrote:

> Hi everyone,
> After trying for the past few months to learn CW I have finally decided to 
> write the idea of me learning CW off as a bad idea as it appears that I 
> rythmically challenged and just cannot get my head around it.  (I'd also make 
> a very bad Catholic too but lets not go there!) :-)
> 
> So, I'd like to swap my 8 pole 400HZ CW filter  for a 1.8KHz 8 pole filter.
> I will pay the postage cost to send my filter to you if you do the same with 
> your filter that you send to me.
> 
> Please contact me off-list.
> 
> Thanks for your time,
> Jeff Cochrane - VK4BOF
> Elecraft K3 # 4257 + PR6 + K144XV = multiband greatness!
> __
> 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

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