[Elecraft] wire antennas

[David Wilburn]

I am very much enjoying reading the discussions on wire antennas.  I 
have something I have been trying to figure out how to do for some time, 
and thought this might be a good place to ask.

I have an 80m loop, up about 60 or 70 feet.  Currently it is fed with 
300 ohm line.  All I could find at the time, as what I had left in 450 
ohm line (after I helped my elderly neighbor get his antenna back up, 
and gave him some of the ladder line) was not long enough. 
Additionally, I went to the local hamfest this weekend and could not 
find a single vendor selling ladder line, but I digress.  I have 
approximately 290 feet of wire in the air in a horizontal, triangular 
configuration, fed with (soon to be) ladder line, a balun (1:1) and then 
coax to the shack.  Is it possible to switch this (seems possible from 
what I have read) to a 160m antenna by taking one side to ground at the 
balun and feeding the other side?  If this is possible, is there a way 
to do this remotely?

David Wilburn
dave.wilburn at verizon.net
K4DGW