wavelength 2

[Fergus Kyle <VE3LVO@rac.ca>]

"3. If two GPS antennas are needed how close can may they be to each other
without interference problems."
            If one is inactive, 1/2 wavelength (on GPS) more than an inch or
two.
Cheers, Ferg
P.S: A groundplane should be 4-5% larger (in radius) than 1/4 wavelength,
depending on material and conductivity. The best match for 50ohms (radio
parameter) is a cone at 45deg to the vertical 1/4 wave antenna pole - but
it's not as critical as having the antenna in the clear.