dear friend
if the intensity of fm signal be high in your location, you can use a simple DIPOLE antenna.
prepare two aluminum rods [ diameter 10 mm and length 70 cm each]. mount these on a
piecce of wood or plastic [ 10 by 20 cm ] in line [ distance between them 2 cm ]. now connect
the cable[ RG-6 75 ohms] leads [ sheild and centeral wires] to the middle point ends.install this on the roof.
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cable
sincerely rahmati [antenna engineer] from IRAN rahmatikhalil@yahoo.com 10 june 2009