My mistake. Now then, for lighting we don't really want much inductance between the antenna and ground.
For a 100 kA strike rising in 2 us 1 MV is developed across 20 uH. Instead we want a sturdy spark gap of 1/32 inch connected directly from the feedpoint to the ground system. WX7G On Jul 26, 2012 4:23 PM, "Tom W8JI" <[email protected]> wrote: > 30 watts is correct for 1500 watts in a 50 ohm system and a coil Q of 226. >> >> The power loss is 0.1 dB and the coil temp rise is around 20 deg C. >> > > No, it isn't. > > 1500 watts is 273 volts into 50 ohms. > > If Q is 226, and reactance 226 ohms, Rp is 51,077 ohms. 273 volts is 1.46 > watts heat. > > To get 30 watts of heat with 226 ohms reactance, Q would have down near > unity. No one makes a coil that bad. > > > > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
