Use as many radials
Steve Miller (firstname.lastname@example.org)
Date: September 21, 1995
Original source: Usenet's rec.radio.amateur.antenna
a FAQ available that discusses practical aspects of design and
construction of radial/ground systems for use with vertical antennas?
For most HF installations, its best to lay down as many radials
as possible as long as possible. Depending upon local ground conductivity,
you begin reaching diminishing returns at lengths of 0.35 to 0.5
wavelengths and numbers of about 100 radials.