Dave wrote:
The original post is basically asking if 100 watts can be run from a 706
in a 60 meter mobile. The answer is YES. Why? Because an eight feet long
antenna is substantially less than the reference dipole. [Typically it
is -10dBd].

For a 10' whip, EZNEC says the radiation resistance
on 60m would be ~1.3 ohms. Doubling that for center-
loading yields ~2.6 ohms. Dividing by an estimated
feedpoint resistance of 20 ohms gives an efficiency
of about 13%. Assuming an efficiency of about 90% for
a 1/2WL dipole, I should be able to run
50w*90/13 = 346w. 100 watts should certainly be
justifiable. Heck, I might even fire up my SG-500
at 300 watts. Now the next question. Is anyone using
60m?
--
73, Cecil http://www.w5dxp.com