There was an FM loop antenna with a tuning capacitor in which was demoed and it brought a station in that without the loop could not even be heard. I've thought of that too since the FCC told me that a Decade MS-100 would go 1,000 Ft to a good Radio. So that being said you may get your range up to 3,000 Ft in which you could tell your listeners about the FM antenna and Boom you have listeners and nothing could be done to stop you.
You understand as frequency gets higher antenna gets shorter.
Am I right, yes I am
So explain why won't using a am ferrite antenna same design would
NOT work for fm or tv reception antenna!.
It should it's how you build and construct the antenna.
( So how is a short antenna receiving am broadcast when you guys Think I need a large antenna to get the signal because The only way it will work is by a large antenna the Ferrite bar antenna just show you wrong you can have A small compact antenna ).
Another example dummy load antennas ( rubberduck antennas )
Do I need to say more!, NOPE!.
You need to do more homework in this field this is why:
1) The build short emergency antennas for am broadcast on portable trailers!.
2) Read up on building miniature antennas!.
3) They make short antennas for ham operation as well!.
Theoretically it could work as the size/inductance of the coil could be adjusted for the FM frequencies but there must be a reason why a length of wire or telescoping "whip" is used. But notice with cars a whip outside on the fender or wire imprinted in the window is used for AM and FM and car radios are the best of all. So if the same antenna can be used for each band in a car the ferrite rod and coil antenna could probably be used for AM and FM in home or portable radios. Now you've got me wondering.....I will try to research this. Good question, why is a telescoping whip used for FM and the loop or ferrite stick used for AM and why can't, with all radios, the whip be used for both like a car? or visa/versa?
Just read that to have a whip for AM with a home or portable would be impractical because of the long length needed(100s of feet) so the coil over the ferrite rod with the ferrite rod greatly magnifying the signal strength of the coil is used but that still doesn't explain how a 25" length of wire works so good with cars for both.
I will research later why a ferrite rod/coil can't be used for FM/TV.
I think we all know that car radios are the best that radios can be, and they use the wire whip for both AM and FM, whether mounted on the fender, in the window or on newer cars on the roof so it must work. The circuit design in the receiver is designed for this type of antenna and is different than home/portable receivers. This type of antenna is omnidirectional so no matter what direction the car is going reception is the same. I have driven all kinds of cars with the antenna on the fender, in the window or a short one on the roof and found reception in a car is superior to any home/portable. Just see with our part 15 stations the difference with a car vs another receiver.