Try this: a 16 Ohm resistor in series with each side of the dipole, and a
100 Ohm resistor across the feedpoint. Unless I messed up, this will give
you SWR = 2:1 for all conditions including shorted, and absent dipoles.
Tam/WB2TT

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There's no need to mess about with the antenna. Just connect a crude
attenuator at the transmitter end of the transmission line. This much
reduces the cost of the antenna. It's then just a length of wire.