View Single Post
  #8   Report Post  
Old October 1st 07, 08:46 PM posted to rec.radio.amateur.antenna
Richard Fry Richard Fry is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 440
Default what homebrew HF antenna produces the most groundwave?

"Richard Harrison" wrote
Kraus in the 3rd edition of "Antennas" gives a simple answer
in Figure 16-35 on page 569. A 0.64-wavelength tall vertical
radiator produces the greatest field strength at one mile
in the direction of the horizon.

_____________

....and subparts (c) and (e) of that figure clearly show the high-angle
sidelobe centered at about 58 degrees elevation from an 0.64-lambda monopole
that may cause self interference -- per Roy Lewallen's post earlier in this
thread.

RF