Thanks for the replies,

BUT what I still needs is a pre selector, a la palstar's MW550p unit, rather
than an active aerial or pre amp or ATU. I have an ATU and I can make a pre
amp, but I would like to find a circuit diagram for a really selective (6khz
bandwidth) pre selector like the palstar unit

Rgds
Richard

"Richard" wrote in message
...
Now I know this is a bit OT, but can anyone recommend me any sites on how
to
build a pre selector for the MW band. Several times tried google searches,
but only came up with commerical ones, and ideally I would like to build
one
myself.

Any leads greatly appreciated,

Richard, Warsaw