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Message: Re: Might the police position themselves near known non-enforcement radar sources?

Changed By: Gator Bite
Change Date: January 28, 2011 11:02AM

Re: Might the police position themselves near known non-enforcement radar sources?
I A good question, with a pretty complex answer unfortunately. You really need to know how True Lock (that's what escort calls it) works to understand.

True Lock works by measuring both the location of the car, and the frequency of the radar source. If the system sees the same frequency in the same location three times in a row, it assumes it must be a false signal and memorizes it, assuming you have the Auto Learn feature on. If not, then you need to manually identify false signal source by tapping the mute button three times.

My detector has memorized the two radar operated door openers at my local grocery store. So lets assume a LEO (Law Enforcement Officer) parks near this source with his radar on. This actually happens all the time to me, because the police department is right next to the grocery store. For True Lock to ignore the legitimate signal, a few things would have to happen.
[list=1]
[*]The police radar must be at the same frequency, or very close to the same frequency as the memorized false signal. The chances of this are very slim.
[*]If the frequency were the same, the police radar source would also need to be the same power output as the door opener or it would extend outside the True Lock circle and trigger a response. Speed measuring radar is a LOT more powerful than the radar used by door openers. My detector will pick up a real K band signal (the band the door openers use) a mile away or more. I pick up the door openers only a hundred yards away or so.
[/list]

For the most part, the Seymour (my home town) police use Ka band, which is very different in frequency from the K band door openers. But there are some K band devices in use too, and they do set my detector off if there. My Escort does tell me how many sources there are, and in this situation I can see three, two that are pretty weak, one that's pegged full strength. (For this, you have to enable the 'Expert Meter' which will provide a separate signal strength for up to 8 sources.)

In the beginning, when Escort had this technology in the 9500i, the True Lock would lock out a wide range of the frequency, which could open a big vulnerability. They corrected that with a firmware/software update. I followed this topic for a long time at a web forum dedicated to radar detectors, called radardetector.net. Lots of radar experts there. All of the V1 fans were making a big deal out of this vulnerability, but that was years ago. These units have been out there for a long time and I have yet to read a single report of anyone getting a ticket because of this claimed vulnerability, and I've driven 36,000 miles with mine and never experienced a black out myself.

As you can imagine, I get a lot of alerts there because every time a cop leaves his gun on, another signal is present.

Original Message

Author: Gator Bite
Date: January 28, 2011 11:00AM

Re: Might the police position themselves near known non-enforcement radar sources?
I good question, with a pretty complex answer unfortunately. You really need to know how True Lock (that's what escort calls it) works to understand.

True Lock works by measuring both the location of the car, and the frequency of the radar source. If the system sees the same frequency in the same location three times in a row, it assumes it must be a false signal and memorizes it, assuming you have the Auto Learn feature on. If not, then you need to manually identify false signal source by tapping the mute button three times.

My detector has memorized the two radar operated door openers at my local grocery store. So lets assume a LEO (Law Enforcement Officer) parks near this source with his radar on. This actually happens all the time to me, because the police department is right next to the grocery store. For True Lock to ignore the legitimate signal, a few things would have to happen.
[list=1]
[*]The police radar must be at the same frequency, or very close to the same frequency as the memorized false signal. The chances of this are very slim.
[*]If the frequency were the same, the police radar source would also need to be the same power output as the door opener or it would extend outside the True Lock circle and trigger a response. Speed measuring radar is a LOT more powerful than the radar used by door openers. My detector will pick up a real K band signal (the band the door openers use) a mile away or more. I pick up the door openers only a hundred yards away or so.
[/list]

For the most part, the Seymour (my home town) police use Ka band, which is very different in frequency from the K band door openers. But there are some K band devices in use too, and they do set my detector off if there. My Escort does tell me how many sources there are, and in this situation I can see three, two that are pretty weak, one that's pegged full strength. (For this, you have to enable the 'Expert Meter' which will provide a separate signal strength for up to 8 sources.)

In the beginning, when Escort had this technology in the 9500i, the True Lock would lock out a wide range of the frequency, which could open a big vulnerability. They corrected that with a firmware/software update. I followed this topic for a long time at a web forum dedicated to radar detectors, called radardetector.net. Lots of radar experts there. All of the V1 fans were making a big deal out of this vulnerability, but that was years ago. These units have been out there for a long time and I have yet to read a single report of anyone getting a ticket because of this claimed vulnerability, and I've driven 36,000 miles with mine and never experienced a black out myself.

As you can imagine, I get a lot of alerts there because every time a cop leaves his gun on, another signal is present.