> We are now entering deep (classified?) radar and ECM and EECM stuff. I doubt that this particular technique is classified, it is fairly well known and dates

> We are now entering deep (classified?) radar and ECM and EECM stuff. I doubt that this particular technique is classified, it is fairly well known and dates back to the early days of EW. One interesting angle is that the basic technique (frequency hopping) was invented by a famous actress and a composer (http://en.wikipedia.org/wiki/Hedy_Lamarr#Frequency-hopping_spread-spectrum_invention http://en.wikipedia.org/wiki/Hedy_Lamarr#Frequency-hopping_s...).