LF: Proximity effects

["Steve Thompson" <steve@eltac.co.uk>]

I'm struggling with a poor set of options for an aerial at this house. The
greatest vertical section I can get while still allowing top loading is
8-9m, but the lower 3-4m would be up against brickwork. How much does this
affect radiation compared with, say, 6m vertical clear of buildings (with
the same toploading)?

Thanks,

Steve