At KP2M we have a FCP inv-L for 160M. This has improved our signal from the sloping dipole we originally had up. The land has a steep downward slope towards the north, about 45 degrees. The vertical is about 30 above an elevated feed about 10 above the ground. The L portion goes up the hill to a tower.
>From the vertical, EU is about 45 degrees and the USA is about 345 degrees. The vertical is about 140 above sea level and about ½ mile or so from the ocean. This island is all rock. It is the only island in the Leewards that Is not volcanic in origin. Thinking about replacing the two legs of the FCP with radials. Can only have lengths about 35 or so. The thought was to either lay them on the ground or elevate them. Probably will need to add a coil between the joining of the radials and the coax shield. Figure on adding some ferrite cores and wrap several turns of coax through it at the feedpoint. Was thinking about using 4-6 radials since they are so short and fanning them from the west to the east. Was not planning on radials behind the vertical towards the south as there is a very high hill directly behind the house to the south. Has anyone done any modeling of something like this and/or had experience with our dilemma? Tnx for any feedback 73, N2TK/NP2, Tony _________________ Topband Reflector Archives - http://www.contesting.com/_topband
