See http://www.fybush.com/sites/2005/site-051028.html
For 1530 kHz, that's a PAIR of two vertical halfwaves in phase. 50 kW gives 3545.89 mV/m. Note the relative lack of neighbors, and therefore lack of 24 hour miscellaneous diodic signal demodulation, talking window screens, permanently lit florescent bulbs, etc. Note that this monster is not too far from 160m. Think big and put an only slightly downsized 160 version out in the salt shallows somewhere on the western side of Cheasapeake Bay. Without any controversy whatsoever as to ground induction losses (zero) EZNEC says this would put 13.6 dbi gain toward Europe at 3.1 degree takeoff. Order of magnitude: three element yagi. Just for comparison, if I drain Chesapeake Bay and fill it with concrete rubble and other urban debris (can do magical things in EZNEC) I get 5.0 dbi at 12.9 degrees. The full table: Urban debris: 5.0 @ 12.9d Sandy 4.8 @ 10.7d Rocky, poor 5.2 @ 10.6d On Fri, Sep 23, 2011 at 1:21 AM, Herb Schoenbohm <[email protected]> wrote: > George, Are you familiar with the Franklyn antenna design? > Some broadcasters swear by them and claim a 3 db increase over a 1/4 > vertical radiator. > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
