Since the first radar gun and the very first radar detector have been invented, an arms race of sorts has started. Wielders of the radar gun, members of the Police radar detecting info, make an effort to catch drivers who drive over the speed limit. On the other part, the average Joe, owner of the radar detector, doesn’t wish to be caught speeding nor does he want to be falsely blamed for speeding because of a faulty gun.
This arms race causes manufacturers of radar guns to locate way of overcoming the ability of radar detectors’ ability to detect them, and the other way around: manufacturers of radar detectors find means of outsmarting radar guns – and even jamming their signal altogether.
Consequently, new models are occasionally released that are specifically aimed to handle the extra features from the ‘nemesis’ (for insufficient a much better word). Much like an older radar gun is practically certainly gonna be useless against modern radar detectors, a classic radar detector will not be effective against modern police guns.
The ‘arms race’ from a technical perspective – Radar detectors detect EM emissions from radar guns and trigger a burglar alarm to the driver that a radar detector can be used in the area. In order to outsmart radar detectors, radar guns change frequencies to people that radar guns are insensitive to therefore, are effectively blind for them. However, once detector manufacturers figure this out, they enable their devices to become sensitive to these frequencies too.
Furthermore, some devices passively absorb the radar signal, and consequently, render the vehicle invisible to the radar gun. Be aware that this may look suspicious to a police officer using a radar gun.
New radar guns use laser light (called LIDAR) instead of EM emissions. Older radar detectors could be completely ineffective against this sort of radar gun. However, radar detector manufacturers have a method to circumvent that too.
In addition, technology has been improving in alternative methods. By including GPS technology into radar detectors (as some model do, as an example, the Escort Passport 9500ci) radar detectors usually do not always have to detect the presence of radar guns – all they need to do is connect to a database of people who have reported the actual existence of radar guns in certain locations, and wxzycl drive slowly in these regions. It is really an impressive feat, though personally I believe one other side is already working on a means of circumventing that also – perhaps by creating numerous false alerts to make this database useless? We shall have to wait and discover.
From an academic perspective, it is really an interesting topic to follow along with. However, in reality, if you wish to make use of a radar detector, you need to make sure it could cope with modern radar guns, otherwise, you could be setting yourself up for any very unpleasant surprise as you might find yourself overconfident due to your radar detector device.
In conclusion: only by reading up-to-date reviews of radar detectors you can be assured which you pick the right radar detector to suit your needs, which it will be effective in this day and age. One last point: it goes without proclaiming that before buying a radar detector, you must make sure that using and owning a radar detector is legal where you live and country.