No ready? What were we shipping 11 years ago? The desired microwave band was down converted to 50-90 MHz. Then it digitized everything in that 40 MHz. Software defined the center frequency, IF bandwidth, video or audio bandwidth and type of demodulation, all done in the digital domain. Of course, cheapskates tended to drop dead when they saw that US $80,000 price tag. It was available as a singe channel (DR2000), or a digital dual receiver diversity design (RCB2000). They were designed late in 1998.