Yes, that ERP looked a bit high.  My guess is about 0.1 watt.
The aerial is a single 100 metre wire that slopes from 3
metres to 25 metres at the far end over its 100 metre span.

The average height is only 15 metres.

I'll be trying the 25 metre tower  this summer.  It is
insulated at the base and presently used for 30-160 m.

Joe

On Fri, 26 Mar 2004, Alan Melia wrote:

Hi Markus I think you misread Joes description of his aerial. It is about
17m high with a single (at present) 100m topload wire ....Heff probably only
16m.

Cheers de Alan G3NYK