[TowerTalk] Re: KT34-XA self resonant

[Michael Tope]

Several people replied to me asking for the KT-34XA
element self resonant frequency data which K6MYC had 
sent me several months ago. Here is a copy of the data
that I got from Mike. 


REF 10    27.8
    15    20.9
    20    13.8

RDE  10    28.75
     15    20.925
     20    14.030

FDE  10    29.4
     15    21.86
     20    15.075

D1   10    29.35
     15    21.9
     20    14.34

D3   10    29.15
     15    21.38
     20    14.6


Please bear in mind that this data will only provide 
a useful basis for comparision if you measure each 
element by itself and up in the clear away from the 
ground, guy wires, and other conductive structures 
which might mutually couple to the element under 
test (Mike had his elements up 28 feet and used a
1:1 balun).

Also I should mention these numbers are based upon 
the original KT-34XA dimensions. Mike claims to have 
squeezed another 1dB of forward gain out of the design 
via computer optimization, and then used this data as 
the basis for the M-squared KT-36XA  and his KT-34XA 
rebuild kits. I don't have these new dimensions or 
element resonant frequencies. 

Hope this is helpful

73 de Mike, W4EF...........................................



----- Original Message ----- 
From: "Ed Garman" <k9tx@mc.net>
To: <w4ef@pacbell.net>
Sent: Sunday, August 06, 2000 6:09 PM
Subject: KT34-XA self resonant


> Mike,
> 
> I read your posting regarding the element self resonant frequencies.  My
> XA is on the ground for rebuilding.
> 
> If possible, could you email me the list of element self resonant
> frequencies?
> 
> It would be greatly appreciated.
> 
> Thank you,
> 
> Ed
> K9TX
> Crystal Lake, IL
> 
> 


--
FAQ on WWW:               http://www.contesting.com/FAQ/towertalk
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com