[Antennas] Shunt Coil redux

k3hx at verizon.net k3hx at verizon.net
Thu Sep 13 04:21:56 EDT 2007


Kind folk,

Wound a coil and put it between the base of the 

antenna and ground.  Little bit of tap selection 

caused the 

indicated VSWR to be essentially flat on 10.  Got 

curious and tried adding a 20 meter resonator to the

top of the mast along with the 10 meter resonator.

To make a short story even shorter, was able to find

a common tap for both which provided 1.2-1.3:1 over 

the 10 meter area of interest and 1.3:1 over about 

30 kHz of 20 meters.  A litte bit of resonator 

tweaking was required.

Again, thanks to all who assisted.

73,

Tim 


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