[600MRG] Radiated power

[Rudy Severns]

Yep, the RF ammeter is the original "must have" instrument and for many hams
that was pretty much it until after WWll.  

 

The radiated power (Pr) is the product of the square of the base current
(Io) times the radiation resistance (Rr, referred to the base).  Once you've
finished building the antenna, Rr is what it is.  All you can do to increase
Pr is to increase Io.  This is done by tuning for maximum Io with a given
transmitter output power.  To increase Pr further still you'll need either
more power or improvements to your antenna.

 

GL and 73, Rudy N6LF