I have had exchanges with G0KSC about errors on that page where he
describes the Pawsey Stub, as you will see from his recent additional
note in red.
1) It is *not* the differential-mode Velocity Factor of the coax which
is relevant when calculating the length of stub required. Here's the
explanation I gave Justin on his discussion forum - see posting #131:
The issue was also addressed experimentally here:
2) For best stub operation the CM impedance looking along both "paths"
back from the feedpoint should be the same; that argues for using the
same coax for the stub as the main feedline.
On 28/12/2010 16:04, Stan Stockton wrote:
> Pawsey Stub. Go to G0KSC's nice website.
> Stan, K5GO
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