[Elecraft] KX3 Antenna Tuner & the T1

[Kevin Rock]

I was playing with NECwin+ and found an interesting antenna.  Later I  
found it had already been invented but it was fascinating to see how the  
numbers worked.  It was an off center fed doublet with the feed point at  
the 3/8 - 5/8 point.  It worked well without a tuner for almost all  
bands.  Play with the numbers and see if you can find a better feedpoint  
for an off center fed wire.
    73,
       Kevin.  KD5ONS


On Tue, 21 Jun 2011 17:30:23 -0700, Al Gulseth <wb5jnc at centurytel.net>  
wrote:

> Wayne,
>
> Pardon me if I missed where the details were posted, but I'd like more  
> info on
> the "50' off-center-fed wire" antenna you mention. I'm assuming you mean  
> 50'
> long, but are you using the traditional 1/3 - 2/3 feedpoint or one of the
> other "offsets" that some authors mention?
>
> This sounds like a good possibility for a portable ops "wire in the  
> trees"
> antenna. (My primary portable interest is 40/30/20/15 and I'd like to  
> know
> how it loads on those bands.)
>
> TNX/73, Al
> On Tue June 21 2011 2:58:24 pm Wayne Burdick wrote:
>> On Jun 21, 2011, at 12:44 PM, Dave KK7SS wrote:
>> > How does the SWR/R/X range of the proposed KX3 AT compare with the T1?
>>
>> A little wider (same as the KAT3).
>>
>> > And, just as important, will the KX3 'autotune' with the T1?
>>
>> Yes. I'm using a T1 with the K3 on all bands right now, with a 50' off-
>> center-fed wire, 300-ohm twinlead, and a an Elecraft BL2 balun. Works
>> great.
>>
>> As soon as the KXAT3 is ready, I'll be using that :)
>>
>> Wayne
>>
>> > Inquiring minds, and all that jazz :)
>> >
>> > (Already have a T1 ^_^  )
>> >
>> > Thanks..
>> >
>> > --
>> > Dave G  KK7SS
>> > Richland, WA
>> >
>> > '59 Morris Minor 1000 - working on it..
>> > '65 Sprite - in process :(
>> > '76 Midget - co-owned with #4 Son :)
>> > '06 Honda Civic Hybrid
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