On Tue, 26 May 1998 14:26:25 -0700 (PDT) Pat Barthelow <aa6eg@cv.tmx.com>
writes:
>
>
>
>HI Guys,
>
>
>What is the magical length of coax that is a n integral multiple 1/2
>wavelength on 20 15 and 10 meters?
>
>Assume 1.0 velocity factor, and I will determine the actual velocity
>factor and finished length, of our 3/4", 75 ohm CATV hardline, and
>make
>appropriate adjustments.
L = n 492 Vf / 7.06
where:
L = length in feet
n = any positive integer (1, 2, 3, 4, 5...)
Vf = velocity factor
7.06 = freq in Mhz for 1/2 wave on 40 (7.06 for 14.12, 21.18, 28.24)
Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com
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