DiscussWorldIssues - Socio-Economic Religion and Political Uncensored Debate - View Single Post - Australia Calling: Innes accused of treason.

**TorryJens** · 08-06-2007, 04:40 AM

I have heard that before as well; how about the 'being underground/within (for example) a bank safe' situation? Would the layers of other material pose any real problem for the tracking devices, or is it another urban myth?

Simple 'robinson's cage' will sort it out. Iead lined house safes work well. purchase a $30 house safe from bunnings and line it with roofers lead sheets to inch thick...

there was a descent armoured car robbery where the vehicle was placed in a lorry with a lined cab (only talked about, can't find the details of)

GPS tracked vehicles, like a taxi would be a good test, liberate one and cover / transport and see how long it takes to be found.

The introduction of micro-strip antennae has really changed the world of GPS, its not like an omni-directional or line of sight UHF signal, it bounces around, similar to VHF but without ground wave propagation... more like sideways action...

The old directionals were a little dodge, but those days are gooooooone

08-06-2007, 04:40 AM	#7
TorryJens Join Date Nov 2008 Posts 4,494 Senior Member	I have heard that before as well; how about the 'being underground/within (for example) a bank safe' situation? Would the layers of other material pose any real problem for the tracking devices, or is it another urban myth? Simple 'robinson's cage' will sort it out. Iead lined house safes work well. purchase a $30 house safe from bunnings and line it with roofers lead sheets to inch thick... there was a descent armoured car robbery where the vehicle was placed in a lorry with a lined cab (only talked about, can't find the details of) GPS tracked vehicles, like a taxi would be a good test, liberate one and cover / transport and see how long it takes to be found. The introduction of micro-strip antennae has really changed the world of GPS, its not like an omni-directional or line of sight UHF signal, it bounces around, similar to VHF but without ground wave propagation... more like sideways action... The old directionals were a little dodge, but those days are gooooooone
	Quote