Turn off the mobile

Adam Sampson ats at offog.org
Thu Jul 17 17:23:37 BST 2014

Ian Mason <ukcrypto at sourcetagged.ian.co.uk> writes:

> Substitute single Li-Ion battery and stubby antenna and you're there.

Or even a plate antenna, as used in some versions of the Pye Pocketfone
police radios -- which were basically doing exactly this in the 1970s:

Adam Sampson <ats at offog.org>                         <http://offog.org/>

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