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from the tracking-device-which-also-happens-to-make-calls dept.
Soldiers stupid and disobedient enough to carry their own tracking devices into the field on operations are teaching their units harsh lessons when entering combat. The Association of the United States Army, the U.S. Army's professional association and lobbying group, has an article on how mobile phones are used against soldiers carrying them in the field. This includes, but is not limited to, psychological operations, artillery strikes, monitoring, or all three at once. Given the lax discipline about leaving the mobile phones behind, the attacks built on phone info have been increasingly successful both physically and mentally.
[Ed Note: The second link details how Russian backed separatists are using advanced EW and psyops tactics against the Ukrainian Armed Forces]
(Score: 4, Informative) by bob_super on Thursday August 16 2018, @10:08PM (1 child)
You may want to read about "spread spectrum".
The point is to widen the signal until it's showing up near the noise floor, nearly impossible to pick up unless you know where and how to amplify/filter. You won't notice any activity unless you have some pretty serious equipment in your setup, and triangulating the source is also extremely tough.
That's pretty standard for stealth planes comms. I don't know how pervasive it is elsewhere, but I can imagine they ultimately want it for everyone with a uniform and radio.
(Score: 2) by All Your Lawn Are Belong To Us on Friday August 17 2018, @03:23PM
Not quite on point to spread spectrum, but there are digital amateur radio modes as well which can be decoded when not audible (signal below noise floor). The mode Olivia in addition to others. I remember the weird feeling I got the first time I saw text being generated on my display and I was listening as hard as I could but only hearing static noise over the headphone monitor. It felt like information was coalescing out of nothing. :)
This sig for rent.