Re: Seismic & Acoustic Comms
- --- In firstname.lastname@example.org, "ozob99" <ozob99@y...> wrote:
> The recent SOSUS topic reminded me of another type of Cold Waranalog
> acoustic(& seismic) signal transmitted by wireline & RF comms:
> Intrusion detectors,exemplified by the Viet Nam era "IGLOO WHITE".
> One of many pages on it:
> I'm sure these have been used historically in our homeland &
> especially post 911 at many sensitive places, e.g. Mt Weather,White
> House,Ft Knox & other military and nuclear facilities,etc.Any
> wirelines involved would probably be gov't cable or possibly a local
> telco in some cases.
> I imagine the current devices transmit a digital rather than an
> signal from the transducers,or should i say a digital analog asI found this page on post cold war monitoring of various sensors by
> opposed to a analog analog?
> Perhaps a member has some experience with a domestic system?
- The link is dead, here is another: