View Single Post
Old 07-14-2009, 05:35 PM   #22 (permalink)
flat5
Very Insignificant Pawn
 
Location: Amsterdam, NL
AFAIK cell phones operate on about 3 defined freq. bands.
Why can't the prison monitor for local activity on those bands?
On a cell block basis. Equipment informs staff and blocks that freq. band with a low power signal
that is wideband or sweeps the band confusing the trunking.
Just a thought.
flat5 is offline  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73