[atomichaggis]

Here is the challenge... I want to use a standard transom mount transponder so that it can be removed from the water after each use (moored boat) and no holes drilled in the transom (at least not below the waterline).

I have some vague idea to use or if need be make something with a bracket like an outboard motor's mounting bracket which clamps onto the transom (or gunwhales) and a pole down to the water onto which the transponder would be screwed onto the bottom but then i'm just not that handy.

Any Ideas about what pieces of equipment could be used for this purpose or designs to make something for it would be appreciated.