What are the frequencies / bands radar? X, K, Ka, Ka narrow range and is frequently used encodings different police radar. Same frequencies are used single all over the world and usage is the same. Radar waves are moving in a straight line and this is taken into account the location of the device in the car.

What works, Laser-radar (LIDAR)?  The laser operates in principle the same way that the radar does but for distances less than (below 150m). Greatest chance of being warned in time, is when the police try to register the car in front of you if you are already warned when you got your car laser detector, have very short time to react once the device in your car . warns.

What is photo radar? It installed an automatic device which will measures the speed street, take a picture no. license plate on your car and then they will send a fine home. Whatever the device manufacturer that is above, he knew that you can have a radar detector. Pt. that have made photo-radar to work on very small distances, knowing that such radar detector and then you will have no time to react (30-45m) or about 1.5 seconds to 60Km / H. Your detector and you can refer your car in front passes by a photo-radar.

Why are issued warnings even if it is not any police car in the visible? A radar detector is basically a microwave receiver. In today's modern world there are many sources of microwaves. Automatic systems for opening the doors of supermarkets, various alarm systems, towers for antennas. Cell phones can be detected and interpreted falsely as issued by the police car. You can eliminate most of them passing on the workings CITY (city) on the highway. A detector that has referred the matter any false signal certainly is damaged.

Why is the VG2 is undetectable - All radar detectors emit a low level signal that can be intercepted by a detector VG2. Basically a VG2 radar detector is a detector and is used by police officers to. detect cars that have installed radar detectors (where their use is not permitted). A radar detector that is undetectable VG2 has a special circuit or change the frequency detector radar detector or temporarily stop while it is scanned by a detector VG2.

What is alert VG2 and why it's important to have one? Police may have VG2 detectors that can detect a radar detector in your car. Option VG2, your detector warns you that a cop is nearby with a radar detector. So you need another way to be informed that nearby there is a police officer using VG2 detector. If you are near (to a length of 4 cars) one other car with a trap will receive a false alarm VG2. The only situation when they receive false alarms VG2!