[TowerTalk] K6STI Receiving loop question

[Joe - WDØM]

Good point - how close is "close enough" - but if you're doing it the first 
time, why not 'do it right" instead of having to do it over?  :-)
73,
Joe
WDØM

At 01:11 PM 11/18/2004, Pete Smith wrote:
>On the other hand, if it is a receiving antenna, do you care?  The 
>additional loss in the feedline due to SWR *may* be trivial in this 
>application.
>
>73, Pete N4ZR
>
>At 02:51 PM 11/18/2004, Joe - WDØM wrote:
>
>>Hi Dave,
>>
>>Perhaps the easiest way (if you have an antenna analyzer or access to 
>>one) is to check the impedance at the antenna using an antenna 
>>analyzer.  That will tell you which way to go in modifying the turns 
>>ratio.  I just put a beverage antenna together, and the analyzer was very 
>>helpful in assembling the transformer.  I used my Autek analyzer - and 
>>it's probably the best investment I've made to be sure every watt I own 
>>gets to the antenna and then on to the other guy's radio.  ;-)
>>
>>73,
>>Joe
>>WDØM
>>
>>
>>At 11:47 AM 11/18/2004, Dave Quick wrote:
>>>I recently put up a K6STI loop for 80m. It's about 8 feet off the ground
>>>and built according to the plans in the Sep. 95 issue of QST. It's 21
>>>feet on each side and I used 450 ladder (window) line and a 77 mix
>>>ferrite bead for the transformer.
>>>
>>>My problem is that I can't get the SWR below about 3:1 or so. I do get a
>>>dip as I adjust the cap, but never below 3:1. I'm guessing that I need
>>>to adjust the turns ratio of the transformer, which is 4 turns to 10
>>>turns as the QST article specifies, but I'm not sure which way to go
>>>with the turns ratio.
>>>
>>>Does anyone have an advise for me?
>>>
>>>Thanks.
>>>
>>>Dave Quick K0EKL
>>
>>
>>_______________________________________________
>>
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>>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>>any questions and ask for Sherman, W2FLA.
>>
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>
>