[TowerTalk] 80/40 coax trap dipole design

[Rik van Riel]

On 12/15/2010 09:21 AM, DJ7WW wrote:
> It will not work on two bands without a trap

There are good examples of antennas that work well on
two bands without a trap.

For example, the 2m / 70cm verticals, which are a little
short to be 1/4 wave verticals on 2m (the coil acts as a
loading coil) and 5/8 wave verticals on 70cm (the coil
acts as a matching coil).

I imagine similar things are possible on HF.

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