In a message dated 1/16/2008 7:28:14 P.M. Greenwich Standard Time,
k2xx@swva.net writes:
I agree with Norm and others that the quarter wave 72 ohm matching
sections are simple and effective for matching a typical two element
quad. Although most of my experiences are with four element quads, it
is likely that your six element quad has a feed impedance in the
vicinity of 50 ohms to start with. My observation has been that when
going to four elements, the impedance generally drops to around 50 ohms.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I agree. I have used quads/loops for years and have found using a 1/4
wavelength of RG59 does the trick for 2 el arrays. Direct feed with 50 ohm
for
the four element and higher works great.
Bill K4XS/KH7XS
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