At 08:09 13/01/2004, Jim.kellaway at herts.pnn.police.uk wrote: > >This I put down to the 5 MF BC stations at Brookmans Park. Jim, I have an MF tx site about 500m as the RF flies from me and find a Dunestar filter does the job. They do a HPF that starts to roll off below 1.4MHz. Worth a try - I think I paid £40ish from Vine 73 Chris G3SVL