[Elecraft] Driveway Distortion Demolition Derby

[Don Wilhelm]

Ron,

The FCC regulations for 60 meter power is referenced to the maximum lobe 
of a dipole.  Sooo --
That should be "0 dBd" (gain/loss relative to a dipole) rather than "0 
dBi" (gain relative to an isotropic radiator).
If my recollection is correct, 0 dBd is 2.15 dB greater than 0 dBi in 
the dipole's favored directions (perpendicular to the radiator).
For those not familiar with an isotropic radiator, it is a point 
construct in free-space that radiates equally in all directions.

73,
Don W3FPR

Ron D'Eau Claire wrote:
> Exactly. As I observed, a dipole typically shows gain over an isotropic
> radiator. The FCC rules don't say other than to assume a dipole has a gain
> of 0 dBi for the purposes of this regulation. 
>
> You can find more details and the complete text of the rules here:
>
> http://www.arrl.org/FandES/field/regulations/faq-60.html#three
>
> Ron AC7AC
>   
>