Buck,
DSP filtering and demodulation/modulation is also used in Ten Tec receivers and transceivers from the $329 RX-320D to the $3300 Orion. DSP filtering is not necessarily better that crystal lattice filtering; it depends the receiver design, on the processing powerof the DSP chip (or chips) and the dynamic range of the A/D converter. The Orion uses more powerful DSP's than the RX-320D. As a matter of fact, the Main receiver of the Orion uses crystal filters for the front end roofing filtering.
The more powerful DSP's are more expensive and consume more power, but the price and power consumption comes down as newer generations of IC's are introduced. It's a tradeoff on price, performance and power dissipation. Let's see what ICOM comes up with...
73,
Mike N2MS
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What weighs most strongly is the fact that it will use electronic filtering
rather than the crystal lattice filter. If I recall, isn't this the same
filtering technology used in the IC-7800, the $10,000 radio?
