External aerial for FM receiver

[Mooncat]

As most commercial FM radio receivers are not fitted with an external aerial connection, does anyone know how to add one, for use in poor signal locations such as caravans.

 

[audioguru2]

Most portable FM radios use the earphones cable or a whip aerial.
My car radio also has a whip aerial.
My home stereo has "rabbit ears" as its FM aerial.
My clock radio uses its power cord as its aerial.

FM radios need an external aerial. Many AM radios have an internal ferrite bar aerial.
Is a caravan a motor home? Then use a car radio with a car radio aerial.

 

[zak4000]

wow, i never know that a power cord could be used as an aerial. How is that done and how are earphone made in to an aerial?

 

[audioguru2]

The power cord or earphones cable is made a high impedance at FM requencies with a small inductor in series so the signal isn't shorted, then a small capacitor couples the signal that is picked-up. The small capacitor is frequently just the wires close together side-by-side.