On 1/11/07, Peter P. wrote: > > > http://news.yahoo.com/s/ap/20070111/ap_on_hi_te/spy_coins > > I wonder how they get the signal out. Assuming the lids are metal and > insulated > they could be used as 'dipole' halves. Or use a microwave frequency and > resonate > the disks as is ? The latter.. Look up the "great seal" bug, and that BTW was done by Lev Theremin -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist