A few years ago I found an aluminium beer keg which had been used for
mixing cement. As it was damaged it was no good returning it to the
brewery so I have just moved my LF loading coil into it and placed the
assembly outside on a corrugated steel roof. (Having the coil suspended
from the shack ceiling was not a good idea for the long term).
I took the end off the keg, which is 370mm internal diameter, and the
coil is on a 130 mm former, likely to be no more than 160mm diameter
wound. The antenna is predominantly current fed so no voltage larger
than about 3kV is present.
Has anyone tried this and am I likely to lose radiated power by reducing
the Q of the coil, the Tx output voltage and current are just the same?
Hugh, M0DSZ
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