Well, hell, if they can photograph our license plates at will....
I suppose like most police depts did with radar detectors- they will outlaw this tech also
Next thing you know they will be telling us we cannot use our eyes or ears to detect when the police are nearby.
Authority was once conservative, but is not now in most cases.
Sounds great. I want one. Everybody should have one.
This is not new technology... I’ve had a Bearcat scanner in my truck for over 8 years that has the “Beartracker” feature. It works using the same exact technology as described in the article. Sets off an alarm signal and a flashing red light whenever a police car is in the area. Has slowed me down plenty of times before I got to a radar trap, thus saving me a ticket. Also, since it is completely “passive” technology, it is undetectable in states where radar detectors (a non-passive technology, and thus detectable) are illegal.
The ancient "Beartracker" was a farce in many areas because it only triggered on the highway patrol short range cop to high power car radio link. So, if the cop was in his car and did not use his handheld (why would he?) no warning.
Word was, cops learned about what was up and shut off their belt radio link to the car as soon as they could to screen themselves.
Classic electronic warfare, countermeasure is responded to with counter-countermeasure.
Half the time, when I hear a police or fire emergency siren, I can’t tell what direction it’s coming from. I think the older sirens might have been more directional for some reason.
Radio stations set up a car alongside the highway and listen for the 10.7mhz offset transmission from the FM radios in the cars that pass by. They can count how many cars are tuned to their station this way. The same thing can detect other types of receivers like taxis, police, a pocket pager or a CB radio. This is how the Detect-o-Vans in England work to see if people are using an unlicensed TV in their home.
I used to use a scanner to detect what CB channel a car close by was tuned to so I could jump to the channel.
Some receivers of newer design are not so easily detected but back in the day they all were.
Receivers also are low-power transmitters... that’s why you find an FCC part 15 transmitter label on them.
Back in the late 70’s I set up a small scanner at work to act as a Boss Detector... it would pick up the IF signal from his pocket pager about 100ft before he passed by the door ;-) He never did figure out how it was that not a single soul was ever caught loafing.
Coyotes smuggling illegals on the border near El Paso used to use a scanner this way to detect when La Migra was near.
Police in NYC once got a judge to allow the automatic recording of phone calls made from several public pay phones around the Times Square area based on this simple tech... if the person on the phone had a particular model of pocket pager on them then the recording equipment picked up the RF from it and recorded the call....a War-On-Some-Drugs thing.
If police aren’t doing anything wrong, they have nothing to fear, right? Seriously, if they eat from money confiscated from the public, as opposed to making their own, why would anything they do, EVER, be “private” from those actually earning the money that feeds their kids?