[Rover] Re: Rover digest, Vol 1 #30 - 1 msg

Thu, 21 Mar 2002 19:41:46 -0800

Jacob,
  Having never made a 6M J-pole, and never out of 300 ohm twin lead; I
can't say exactly where to start; but, I have built several of them for
2M from 450 ladder line.  
  I would suggest just starting with a 1/4 wavelength for one side, and a
5/8 wavelength for the other side.   Then just adjust the feedline tap
point up or down slightly beginning about 3 inches from the bottom
shorting section.  I suspect it will have to move up at least a couple of
more inches to get a good match.

Rod Johnson WE7X (ex KA7YOU) Grid CN97-near Issaquah, Wa.

On Thu, 21 Mar 2002 12:02:10 -0500 (EST) [email protected]
writes:
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>Today's Topics:
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>   1. Dimensions for a 6meter j-pole using 300ohm twin-lead? (Jacob 
>Tennant)
>
>--__--__--
>
>Message: 1
>From: "Jacob Tennant" <[email protected]>
>To: <[email protected]>, <[email protected]>,
>	<[email protected]>
>Date: Thu, 21 Mar 2002 09:50:28 -0500
>Subject: [Rover] Dimensions for a 6meter j-pole using 300ohm 
>twin-lead?
>
>A friend of mine was asking me about the dimensions for a 300ohm, 
>twin-lead
>j-pole for 6meters and haven't been able to find any on the internet 
>so I
>thought some of you might have built one in the past, so if you have 
>how
>about passing along the dimensions.
>
>Was looking for designs for 52.525 as well as 50.125...
>
>73's Jacob Tennant K8JWT
>
>
>
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>End of Rover Digest

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