Sounds like a really obvious and good idea, but if you consider the spectrum of
possibly usefull signals, say Msf at 60Khz, Loran, 100Khz, R4, 198 Khz,
various hf to 30mHz, tv signals up to 1Ghz and wifi at 2.4Ghz and beyond, the
wideband receiver will be quite complex. I would bet that sdr (software defined
radio) techniques are used extensively. The real ip in all this will be the
software. something we are very good at in this country. Unlike hardware, it
can be built to be very difficult to reverse engineer and copy / steal.
They say that we don't spend enough on r&d in this country, but well done BAE,
whatever the motives...
Regards,
Chris