> With half slopers (wire length = quarter wave electrical)
> disconnected and unused, they act like "nothing" for RF at
> the frequency of operation. This "trick" of disconnecting
> quarter wave radiator (wire) from the ground connections is
> used to disable the vertical, detune it from the resonant
> frequency = make it "invisible" to RF (at that frequency).
> For wire like that to act as a "counterpoise" it has to be
> connected to the antenna system or be near half wave
> electrical length to act as a parasitic element and be
> positioned so it can direct the RF from the radiator in the
> desired direction.
You made an assumption about the configuration under discussion
(as did Tom). The original poster did not specify if the un-
used 1/4 wave wires were grounded or floating (the switch boxes
Tom designed for Ameritron *GROUND* unused antennas for safety).
As such, you had no right to call Tom's posting "the dumbest
statement of the year." You owe Tom and everyone else an
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