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  Topic: monopole for HF on sailboat counterpoise radials question
PatrickC

Replies: 4
Views: 18247

PostForum: Questions Related to Antenna Theory   Posted: Thu Feb 17, 2011 10:53 am   Subject: Monopole theory Please explain how sea water works at HF frq
http://en.wikipedia.org/wiki/Monopole_antenna
This link describes the Monopole Theory.
Note the ground plane theory. http://en.wikipedia.org/wiki/Ground_plane
....near field reflection point... ...
  Topic: monopole for HF on sailboat counterpoise radials question
PatrickC

Replies: 4
Views: 18247

PostForum: Questions Related to Antenna Theory   Posted: Thu Feb 17, 2011 10:26 am   Subject: half wave dipole acting as a Monopole with seawater ground
Hi,

I just sent these questions via email too: pjbevel at gmail

More details below:

Thanks for answering my questions about feeding 1.5 amps RF at 900v into my Main Mast via starboard stay ...
  Topic: monopole for HF on sailboat counterpoise radials question
PatrickC

Replies: 4
Views: 18247

PostForum: Questions Related to Antenna Theory   Posted: Thu Feb 17, 2011 10:15 am   Subject: Monopole half wave dipole with one seawater grounded leg
The Monopole is in theory a half wave dipole with one leg grounded to the sea water. The only emitting leg is above seawater. So a virtual leg that is one quarter 1/4 wave in length forms in the Sea ...
  Topic: monopole for HF on sailboat counterpoise radials question
PatrickC

Replies: 4
Views: 18247

PostForum: Questions Related to Antenna Theory   Posted: Wed Feb 16, 2011 4:26 pm   Subject: monopole for HF on sailboat counterpoise radials question
Hi, Need experts. So much misinformation abounds.
Have a fiberglass (nonconducting) 42 ft sailboat with a ICOM-802 ssb AT-140 tuner 150 watt PtoP
Hooked ground output of Tuner via 4 inch wid ...
 
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