pres589 wrote:
I wonder about a 1/4 wave FM antenna laid in at the top of the windshield under the trim inside the car. That would keep it in an area more susceptible to RF energy vs. low to the ground with chassis parts around that might arrest some radio waves you're trying to catch. My concern is lack of a grounding plane; it may need to be mounted to a metallic tab of some sort to attach electrically to vehicle structure for this to really work its best.
I hope an RF engineer gets in on this discussion, I should know more about this and don't, and I would also love to someday get rid of the fixed mast antenna on my Mustang.
Not an RF Engineer, but have had an Amateur Radio License since 1975.
Best hidden antenna I ever did was a "sunroof" antenna. Fellow had a non-working sunroof he wanted to get rid of. We made a replacement panel to fit the hole.
Put it in with an "H" shaped gasket around the edge and wooden braces underneath to isolate it from the rest of the car. Soldered the center conductor of the antenna wire to the panel and the shield to the roof.
Have also turned gutter and downspouts into transmitting antennas for guys who lived where the HOA said "no antennas"