Steagall100:
If only software were required to defeat an RDD, more companies would have tried it. But it takes quite a bit more.
The cheap fix was shifting to a new LO frequency, something nearly everyone had done by the mid-nineties. Once the Spectre/Stalcar RDD arrived and was able to detect every one of them, the smart radar detector companies knew it'd take more than another LO shift to defeat it indefinitely.
The latest V1 is very well shielded to limit LO emissions, which cut its detection range by the Spectre by about 2/3. But it's still detectable, just at less range.
BEL took a clean-sheet approach and designed the STi from day one to defeat the RDD: new LO frequency, elaborate LO shielding, etc. The 9500i seems to have benefited from the new LO as well.
This all cost major bucks, tough to justify in a low- or medium-priced detector that probably won't sell in large numbers in area where detectors may happen to be illegal.
Craig
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