26 Jul
2001
26 Jul
'01
10:57 p.m.
At 09:19 PM 7/26/01 +0300, Sampo Syreeni wrote:
On Thu, 26 Jul 2001, Ray Dillinger wrote:
Problem: if each soldier's radio relays messages, it becomes relatively easy to create a soldier-seeking bullet. Just home in on the source of that radio noise, and blam.
Hence, LPI. Spread-spectrum, UWB, directed transmissions in the high microwave bands, and so on. Dunno how useful the latter are for portable equipment, though, or in the battlefield conditions.
Bear has a point; no matter how you spread or hop, you're an emitter. Shoot anything that radiates from 50 Mhz-IR.