MR> TW> We are talking about a VHF Weather Radio. you cannot use a Ferrite
MR> TW> antenna at frequnecies that high.
MR> TW> Actualy though the RF ground is really of most importance with
MR> TW> Transmiters.

MR>IIRC before the advent of digital synthesized tuners in car radios,
MR>tuning was done using inductive coils into which a ferrite piston
MR>would be inserted or extracted, instead of the usual tuning capacitor.

 That system was popular with the Motorola Car Radios. Been a very7 long
 time since I worked in the Radio Shop(1948/50) I don't recal which
 outher used the same. But there were some still using the Varable
 tuning capacitor and fixed inductance.
But at you pass into the VHF range both become somewhat small.
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 þ SLMR 2.1a þ This note from El Cajon California USA