Subj : Antenna
To   : MIKE ROSS
From : Roy J. Tellason
Date : Thu Jul 07 2005 09:09 pm

MIKE ROSS wrote in a message to TOM WALKER:

 MR> "TOM WALKER" bravely wrote to "WAYNE CHIRNSIDE" (06 Jul 05 
 MR> 07:06:00)  --- on the heady topic of "Re: Antenna"

 WC>->  They why do Battery Radios work so well?

 WC>Because they have a balanced antenna, you know those ferrite type
 WC>things with the windings on them.


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

I've only ever seen that in car radios,  myself.

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 * Origin: TANSTAAFL BBS 717-838-8539 (1:270/615)

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