Hello Tony,
a quick and dirty simulation of the 125m tower shows a radiation resistance of 1 Ohm and a capacitance of 2.5nF (what is a reactance of 460 Ohm at 137kHz).
So you would need only 0.55A antennacurrent to get 1W ERP, resulting in a antenna voltage of less than 300V.
If the choke has a reasonable Q you coult place a parallel capacitor and make the LC circuit resonant at 137kHz. Cheap polyprop film cap's should do the job.
73, Rik ON7YD
Thanks Claudio
the mast is grounded via a
choke. Unfortunately the inductivity is to low for 136kHz. So we have to change it.
But we will be careful. 10kV is not for joking.
73 de Toni
