[Waverley ARS] Emailing: 6129460

[Simon Buxton]

Hi Colin

I wonder how many club members recogise the type of device suggested for 
passing power by RF?

All those of you that had to pass a theory exam should know that similar 
RF coupling is used in air core transformers - its a matter of power 
levels and directional focussing to avoid loss. Coils tuned for 50Hz 
would be too massive for practical use but microwaves or radar virtually 
do this. Small domestic items today use this method for battery 
charging, though the two parts are almost touching.

73 Simon

Colin Marks wrote:
>  
> Hi All
> I thought this seems like an interesting and very useful line of 
> research. If it became feasible over long distances I think it would 
> be a case of science -fiction becoming fact.......
> However think of the RFI for Hams at 6.4Mhz........!
> (Of course every RF transmission even now is a transfer of energy and 
> often over vast distances but the amount of energy transferred is 
> miniscule and as far as I am aware of no practical use other than as a 
> medium for communication). 
> 73         Colin         VK2LV
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