Here's another question that only an insider might be able to answer. Evidently, at some point there was a version of the Stalker ATR that was a "frequency hopper" or "spread spectrum".
There's a reference to it on CopRadar.com:
http://copradar.com/preview/chapt11/ch11d1.html
And here's an old post from rec.autos.driving back in 1992 that referenced the unit:
|> at a ham newsletter (sorry, but I didn't write down the name). One
|> small article concerned a radar gun manufacturer who was seeking FCC
|> permission to develop (and presumably sell) a spread-spectrum radar
|> gun.
|>
Sounds like The Stalker, made by Applied Concepts, Richardson, TX. They
had to get special FCC dispensation to go multi-frequency up in the
Ka wideband. Been around a little over a year here, but more in
beta-testing than in real use - partly because of price. Last we
knew, the frequency was set/changed manually - but that was a year or
so ago and A.C. *was* saying that an auto-hop rig was in the works.
Not saying what change algorithm they were planning...
What's the real story on this gun? How did the "hopping" work: did it hop between several freqs between 34.2 and 35.2, or between specific frequencies? Did it simply have a different freq every time you transmit, or did it actually hop during transmission? Did they sell a lot of units? Why did the model get scrapped?
I'm sure you probably don't have the answer since you weren't there back around 1992 
But if you could talk to some of the old-timers and get back to us, that would be great!
Hello!
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Originally Posted by GTO_04
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