[6msig] Re: [50mhz] RE: Home-Brewing a 50 MHz Dipole

[cboone@earthlink.net]

cboone@earthlink.net wrote:
>
> NO, ODD multiples of 1/2wavelength...a 1/2wl in any line
> shows the same Z (line impedance) from one end to the other..
> any other length will cause a change in apparent impeadance
> and hence SWR

AHHH let me qualify this real quick...

The SWR and Z at the radio end will change ONLY if the antenna
is not a 1:1 or matched to the radio/feedline already! I wanted 
to clear this up as my statement above MAY imply that ANY change
in the length of the coax will cause a SWR change...this is NOT
the case IF the antenna IS trimmed and matched already...SWR 
should be measured at the antenna, NOT the radio for the correct
reading...we just have gotten lazy since its easier to put the 
SWR or power meter at the radio end... :)