[Elecraft] how much to stretch copper wire

[Jim Hoge]

I drew the wire for my first antenna about 40 years ago. That was for a quad 
utilizing solid copper. Since then,I have made numerous dipoles, all using 
stranded THHN or THWN 12g wire. My method has always been to anchor one end to 
a tree or a bumper hitch and hold the free end with a pair of Vise grip pliers. 
The advantage of the armstrong method is you can feel the draw and sense when 
it nears its limit. The force require to continue drawing the wire escalates 
and then failure occurs. In practice, I lay out a tape measure on the ground 
beneath the wire to be drawn. Once I have my rough length of wire, I will draw 
it about 10% more in length. (Example: 1/4wave for 7.010 mHz is 33.3' so I will 
draw to about 36.7'.)This has been enough to prevent additional stretching once 
the antenna is up in the air. The thermoplastic insulation degrades well before 
the wire fails and my oldest antenna up at the moment is my 40m dipole, it's 
about 12 years old.
73,Jim W5QM

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Re: [Elecraft] Mods to K3

[Jim Hoge]

I upgraded the KXV3 to the A some time ago and in June, to the B model. What 
sold me on it was the second preamp for 6, 10, and 12m. There is little 
difference in price between the PR6-10 and the KXV3B.I had been waffling on the 
6m preamp for years and when I saw the new XV board, I jumped. No regrets here. 
My noise floor is very low on 6, 10, and 12 so it does help a bit. Honestly 
though, I have seldom used the second preamp on 10 or 12 but 6m, definitely.
73,Jim, W5QM
 


On Saturday, December 5, 2015 12:07 PM, SCDolphin0 
 wrote:
 

 Has anyone upgraded the K3 with either KXV3B, KIO3B or both and any comments?
Thanks Hugh W4DRH
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Re: [Elecraft] KPA500 / K3 ?

[Jim Hoge]

I just finished pulling my hair out on this one. I had set my radio up this way 
a few weeks ago when I added the KPA500 and couldn't for the life of me find 
the instructions for doing so again. What I needed today was a baby steps 
version of the instructions. I finally had the oh, yeah, that's how I did it 
moment. 

That said, the baby steps are:Go to config menu, scroll to pwr set, adjust to 
per band, then set the pwr level for the radio while the amp is in standby and 
again when it is in operate mode. Just make sure the power level is turned down 
before adjusting it in the operate mode. You will have to set the power levels 
for each band.
73,Jim W5QM 


On Sunday, November 22, 2015 2:54 PM, Don Wilhelm  
wrote:
 

 Larry,

Look at the CONFIG: PWR SET menu item on page 58 of the manual, and also 
page 75.  Perhaps that answers your question.

73,
Don W3FPR

On 11/22/2015 3:23 PM, Lawrence Allison wrote:
> I would like to have the  LPA500 reduce the drive power on the K3 when
> going from standby to operate.
> What do I need to set?
>

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[Elecraft] KPA500 power on flash

[Jim Hoge]

Greetings,
Is it normal to see a brief, dim flash of the LCD screen when the rear panel 
rocker switch is turned on?
73,Jim W5QM

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[Elecraft] SP3 speaker sensitivity

[Jim Hoge]

What is the sensitivity of the external speaker?
Tnx,Jim W5QM

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[Elecraft] K3 w/ straight key

[Jim Hoge]

I have always used my K3 with paddles but today wanted to play with a straight 
key and a sideswiper. For the life of me, I cannot find out how to turn the 
keyer off in the manual. The closest I thought I had come was VOX/PTT  and I 
have also scanned through the config and menu to no avail. Perhaps it is just 
sleep deprivation preventing me from this but please how do I do this?
Tnx es 73,Jim W5QM
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[Elecraft] K3 w/ straight key

[Jim Hoge]

Well that was easy. Tnx guys.
73,Jim W5QM

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Re: [Elecraft] Good time to buy Begali products

[Jim Hoge]

Charlie,
My wife gave me a March R-3A a few years ago. It spends most of its time on a 
display shelf. While it is a nice key, it couldn't usurp the prime position my 
Begali Sculpture holds. Most of the reasons why are purely personal but one is 
what I would consider a design oversight. 

By comparison, the Begali's finger pieces are spaced  0.575 (outside 
dimension) while the March's are 0.500. Minimum force to close a contact on 
the Begali is 6 grams and the March is 19 grams. These two parameters are very 
personal as I prefer a wider spacing and a very light touch.
What I consider a design oversight is the length of the contact spacing screws, 
they are nearly  0.375 longer than they need to be and to me, stick out like a 
sore thumb.
That said, the key is well machined and functions very well. It is a fine 
example of key art. It just isn't my favorite. 

73,Jim W5QM
 

 On Sunday, January 25, 2015 5:28 PM, Jim Lowman jmlow...@sbcglobal.net 
wrote:
   

 Yes, indeed!  I have one and it's very nice.
Actually, it belongs to Chuck Adams, K7QO.
It's on a somewhat-indefinite loan to me.
I found out from a Mutual friend that Chuck didn't care for it that much.
Of course, feel is a very subjective matter.

It had some minor wear, so I sent it back to Mike for refinishing. Now 
it's as good as new.
It looks good in my collection and, if Chuck ever asks for it back, it's 
in better shape than when he loaned it to me.

73 de Jim - AD6CW

On 1/25/2015 2:02 PM, Charlie T, K3ICH wrote:
 Has anyone on here used a March Magnetic Paddle? Mike's out in 
 Winchester VA and hand makes these individually.

 I'm not qualified to comment since I can barely use my antique 
 Vibro-Keyer.

 73, Charlie k3ICH


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Re: [Elecraft] OT: Good time to buy Begali products

[Jim Hoge]

Regarding Begali's prices at Dayton, they are directly related to the exchange 
rate. Also, you are not paying for shipping. 

As for exchange fees, Paypal does a good job of making you dig for the 
information but you can determine the fee prior to making a transaction. To do 
so, follow these instructions: log in to your account, click on profile, click 
on my money, click on currency, enter the required information, then click on 
calculate.
The last time I made a payment in Euros, I think Paypal added about 2.5 points 
to the exchange rate. Even with that, the cost of dollars to Euros is still at 
bargain levels compared to what it has been.I don't need any more keys but I 
must satisfy the K3's lust for a new one now and again so I, er, my K3 is 
sorely tempted to purchase another one given the current exchange rate.
73,Jim W5QM 

 On Sunday, January 25, 2015 10:25 AM, Phil Wheeler w...@socal.rr.com 
wrote:
   

 On line prices are in Euros, so a more favorable 
exchange rate will reduce the price in $US -- if 
ordered on line.

Phil W7OX

On 1/24/15 11:23 PM, Rick McGaver wrote:
 If my memory serves me right their pricing is consistent at Dayton, HIGH.  
 And no reflection on the Euro!
 NK.  9G/7
 Sent from my iPad

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Re: [Elecraft] RTTY tail

[Jim Hoge]

The prosign works but it seems to be very sensitive to proper cw timing. I have 
found a workaround to this is to slow down the keyer speed. It is finicky at 
contest speeds but if I drop down to 20-23 wpm, I find it reads the prosign 
much more consistently.
73,Jim W5QM 

 On Thursday, January 22, 2015 10:36 AM, dro...@necg.de dro...@necg.de 
wrote:
   

  
Works perfectly well! Just give it as one single sign, i.e.    ..--  with no 
pauses in-between. It's all about timing ...
 
73, Olli - DH8BQA
 
 

 Stephen Reichlyn a...@bellsouth.net hat am 22. Januar 2015 um 17:08 
 geschrieben:


 I'd love to know the secret of defeating the long tail after a rtty
 transmission. Ive been told to send the prosign IM but it has
 never worked. Any hints?

 73,
 Steve AA4V

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Re: [Elecraft] K3 - Right speaker problem - works only when SUB is on

[Jim Hoge]

Same thing happened to me once and I'm almost embarrassed to admit the solution 
was as simple as turning up the sub receiver volume knob. Doh!

73,
Jim W5QM



On Thursday, September 11, 2014 10:44 PM, Lyle Johnson kk7p4...@gmail.com 
wrote:
 


Check the settings for the audio mixer in the menu.  It maps which 
receiver(s) are heard on which channel(s).

73,

Lyle KK7P

 K3 #1442, sub rcvr, plus.

 Any ideas guys?  Same symptoms, always right side, either speakers or
 headset.

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[Elecraft] K3 rtty decode vs: computer decode

[Jim Hoge]

Greetings,

I have played just a bit with the rtty via cw function of the K3 and am curious 
if my casual observations match those of others. It appears that the K3 onboard 
decoder takes a back seat in rtty decode ability to a radio/computer/mtty 
combination. Agree/disagree/thoughts?

73,
Jim W5QM
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[Elecraft] OT- float chargers

[Jim Hoge]

Hi all,

I'm looking for recommendations for a float charger to keep my generator 
battery topped off but I would also like to be able to charge some smaller SLA 
batteries- 12 amp hour units. Will a one size fits all approach work? 
Brand/model??

Tnx es 73,
Jim W5QM
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Re: [Elecraft] KXPD3 and single-lever paddles

[Jim Hoge]

Dennis,

I have a number of keys, both single lever and iambic and I most certainly 
understand the arthritis comments. If I have been in the shop or out in the 
yard and working with my hands, I am definitely QLF for a time afterwards.  I 
don't know that it really makes a difference whether I am on a single lever or 
iambic key but I have found that either wider spacing between the thumb and 
finger pieces or a wide single lever seems to be better suited to my stiff 
hands. Try something as simple as a stick on footpad or rubber bumper to get 
wider spacing and see how it feels. From there, you can fabricate a permanent 
solution if it is to your liking. I intentionally omitted naming what I use, 
choosing to focus on the width of the fingerpiece(s). 

73,
Jim W5QM
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Re: [Elecraft] Footswitch to use with a Boom Microphone

[Jim Hoge]

I know I'll get heat for this but an old straight key will work too. Just think 
of it as QLF.


Jim W5QM




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Re: [Elecraft] TX5K

[Jim Hoge]

At about 0630 UTC (figure after EU sunrise) they go to other parts of the 
world. I worked them shortly after that.

gl,
Jim W5QM




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[Elecraft] blonde moment

[Jim Hoge]

Have a laugh with me because boy, do I feel stupid. I finally installed the 
subreceiver in my K3, serial 18xx and was going nuts with the audio. Whenever I 
pressed the sub button, the audio cut out from my right headphone. I went back 
into the config menu 3 times, double checking all the settings when it finally 
hit me there is a little knob on the front, lower left side of the radio 
marked AF- sub. Wow! Whodathunkit? The radio works like a champ. Now, if there 
were only an upgrade for me

73,
Jim W5QM
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Re: [Elecraft] KX3 - Roofing filters

[Jim Hoge]

You didn't mention whether the two radios were on the same band, different 
bands, or odd harmonic bands like 40 and 15. Or, was it on any and all 
combinations?
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[Elecraft] Diversity receive w/o dedicated receive antenna

[Jim Hoge]

Your second antenna  does NOT need to be resonant to receive, either by itself 
or with another in diversity mode. My receive antenna is seasonal so I have 
employed antennas for other bands for receive when it is not up. While a non 
resonant will not present as strong a signal, it also will not present as 
strong a noise. The S/N ratio is unchanged but the human ear seems to hear 
better when the noise is reduced. I typically use an antenna for the next band 
(even harmonic).

73,
Jim W5QM



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[Elecraft] Can we get back to technical matter?

[Jim Hoge]

Gentlemen,

Granted the receiver on the K3 is praiseworthy but I am tired of endlessly 
deleting posts based solely on the header because the thread is of a non 
technical nature. I subscribe to the reflector because there are many who post 
here who really know their stuff and I can learn a thing or two by either 
asking or just lurking which is my normal mode. I give thanks for those that 
willingly share their knowledge. Please, keep up with the good and reel in the 
superfluous.

73,
Jim W5QM
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Re: [Elecraft] K3: Heil PR20 Microphone

[Jim Hoge]

Are you running the mic into the rear panel? If so, check your wiring. I ran 
into this problem. You will need either jumper shield and ground or reverse the 
two wires as the 1/8 mic jack is mono, not stereo.

73, Jim W5QM




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[Elecraft] K3 mic problem solved

[Jim Hoge]

It turns out that the rear panel jack is the culprit. I made an XLR to 8 pin 
cable and a mini TRS to 8 pin cable and tested via the front panel. The mic 
works just fine. The plan was to use the XLR to mini TRS and connect via the 
back panel. The cable was tested through the front panel with the second 
adaptor. This leaves the rear panel jack as the culprit. The Heil PR-20 mic 
needs higher gain settings than the hand mic I tested  and they both needed the 
higher mic gain to be set via menu. I'll try and diagnose the rear panel jack 
later and I'm hoping the problem is something simple like a cold solder joint. 
That might explain the really weak signal  when the mic is routed that way.

tnx,
Jim W5QM
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[Elecraft] K3 mic probs

[Jim Hoge]

Tnx to all that responded. I now have the hand mic working as it should be- all 
it took was to toggle the mic gain to high. However, the mic of choice will be 
via the rear panel and it will take some more detective work. The manual says 
it is a mono jack but I think what threw me was that the microKeyer employs a 
stereo plug. If indeed it is a mono jack, I will need to jumper the ring and 
the shield on the stereo plug that terminates the mic cord (other end is a 3 
pin XLR). The mic is a dynamic one, a Heil PR-20. It seems to make sense that 
the low levels of less than stellar audio would be due to the return floating 
in a trs plug when the ring is unconnected. The shield must be picking up some 
to give me something. The cable is good so only other option is bad mic but I 
haven't tried it on another radio yet. Sounds like a project for a three day 
weekend, hi. 

Does the K3 employ a mono or stero jack for the rear mic connection?

tnx es 73,
Jim W5QM
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[Elecraft] K3 mic problems

[Jim Hoge]

I am need of guidance on all things voice. I have used my K3 (#1816) for some 
time now but only on cw. With the 6m openings, I decided to put a mic on the 
radio and promptly ran into problems. I cannot get the mic gain high enough to 
reach 8 bars per the manual. I can only get close if the mic gain is maxed, the 
compression is maxed, the menu gain is toggled to the high level, and I shout. 
I have tried both a hand mic wired through the front panel and an Heil PR-20 
wired through the rear panel. I have not played with eq at all yet but I have 
noticed that there is no mic output unless there is some compression. No 
compression equals no output. Your help is greatly appreciated. It's probably 
operator error but I'm too close to see the problem.

73,
Jim W5QM
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[Elecraft] K3 + LP Pan + Microkeyer II

[Jim Hoge]

Greetings,
 
Are there any issues I need to be aware of for the setup of my K3 with an LP 
Pan and a Microkeyer II? I don't claim to be a computer wiz by any stretch but 
would like to add an LP Pan and a Microkeyer to my K3 setup. My only experience 
has been in interfacing a Mk-V and a Rigblaster, certainly yesterday's 
technology. Advice and opinions are appreciated. BTW, my computer is a Core 2 
running XP, 4 gig of ram, a good but I forgot who video card, and currently 
only the onboard soundcard.
 
tnx,
Jim W5QM
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Re: [Elecraft] K3: USB Adapter cooked

[Jim Hoge]

Lee,
 
I have a similar problem. 30m rtty when I use my 80m inverted vee will lock up 
the computer while in transmit. I too am well grounded but attribute it to 
antenna proximity and feedline length. I have found that adding a short jumper 
to the feedline will alter it relative to operating wavelength just enough to 
eliminate the problem. I once had a vertical that I cut a feedline  for that 
just happened to be 1 wavelength for the antenna and I had fits until I tried 
the jumper trick. Perhaps a better choke at the antenna would have helped too. 
Whodathunkit? The 30m rtty problem on the 80m hasn't been solved so easily. I 
just try to avoid the combo, instead using the 30m vertical but there are times 
when one antenna works better than the other. I don't think my xyl will go for 
a Farraday cage. What's the old fishing joke about going fishing one more time? 
Just trade that for antennas or ham gear, hi hi.
 
gl,
Jim W5QM
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[Elecraft] K3 filter problems

[Jim Hoge]

Greetings,
 
I seem to have a problem with either how I set up my K3 or with the filters. 
When first built  the radio, I had only the stock 2.7 filter in it. I noticed 
that the receive audio began to ring and sound hollow when the bandwidth was 
reduced to about 1K. I now have the 1K filter in position 3 and the 400Hz 
filter in position 4. (I may add a narrow phone filter in the future in 
position 2.) Filter widths are configured at 1K and 400 respectively. All 
filters are enabled for both cw and digital. I note that the filter in use does 
coincide with selected bandwidth but again, as I narrow down to 1K or tighter, 
the received sound is still hollow and ringy. BTW, only the 400 Hz filter has 
gain added in the configure menu to offset its loss. Have I done something 
wrong?
 
Tnx,
Jim W5QM
#1816___
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Re: [Elecraft] Katie - not a bribe

[Jim Hoge]

Have you seen the shirts that say Mom likes me best? My shirt should say Katie 
likes me best, hi. Here's to a speedy delivery!
 
Jim W5QM
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[Elecraft] re:VOM vs DMM

[Jim Hoge]

Greetings,
 
Thanks to all who reponded. I decided to play it safe and borrowed a DMM. I 
also used it to check my VOM and suffice it to say that it will be relegated to 
continuity checks on trailer wiring. No ICs there. The K3 is now built but not 
yet calibrated and I don't have the time for a few days. Man, this is worse 
than the wait after the order was placed!
 
73,
Jim W5QM
K3 #1816___
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[Elecraft] dmm vs vom

[Jim Hoge]

Hi all,
 
Is there any problem using a VOM instead of a DMM to perform the resistance 
checks while building the K3? I have yet to make it fully into the modern era 
and to that end, do not have a DMM.
 
Tnx es 73,
Jim W5QM___
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