Daniel:
If black is the radio, which is about 20 cm, they are functionally equivalent. ?Neither is optimal, however due to the radiator of the antenna you described being shortened by about 1/3 relative to a 1/4-wave radiator and there being only one radial. A few more radials in this configuration could add a few more dB to your signal. Basically, with one radial, you're cutting effective power to less than a third. I'm assuming a vertical radiator and 1/4 wave radial at 90 degrees.?
?
Number of 1/4λ Radials and approximate?ERP?
- 1 radial: ?? x ~0.35 power (puts out about 1/3 of what goes in assuming a 1/4 wave radiator and other optimum conditions)
- 2 radials: ?x ~0.45?
- 4 radials: ?x ~0.65
- 8 radials: ? x ~0.85
Jim
WB0KWJ
?
