LF,
I'm happy to have my LF "office" antenna almost finished. Today i
connected the coil in its end position to the 90m wire in 35m height. A
massive isolator fixes the feedes which is out of copper tube.
See some photos at
http://dl.dropbox.com/u/19882028/feeder.JPG
http://dl.dropbox.com/u/19882028/little%20isolator.JPG
http://dl.dropbox.com/u/19882028/hidden%20coil.JPG
BTW, matching is done by using a galvanic decoupled primary coil (10 cm
diameter) inside the main LF coil (20 cm diameter) and the cable to the
PA is CAT5 LAN cable! This is because i will chosse a H bridge as the PA
which which have main potential and i want to shield both wires which
are 2x 4insulated wires now. This may be even better than RG58 regarding
skin losses :-)
73, Stefan/DK7FC
PS: I can see the antenna wire out of 800m distance :-)
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