Artikelrobot
Well-Known Member
The 1996 proposals included one by Siemens for an HF transmission system between track-to-train called Euroloop. The original proposals mentioned plans to use spread spectrum on a centre frequency of 6.78MHz. Trevor M5AKA looks at the threat Euroloop poses to radio amateurs
http://www.southgatearc.org/news/may2006/euro_loop.htm
http://www.southgatearc.org/news/may2006/euro_loop.htm