what is the range of a key fob
Remote keyless system Keyless remotes contain a short-range radio transmitter, and must be within a certain range, usually 5–20 meters, of the car to work. When a button is pushed, it sends a coded signal by radio waves to a receiver unit in the car, which locks or unlocks the door. Most RKEs operate at a frequency of 315 MHz for North America-made cars and at 433.92 MHz for European, Japanese and Asian cars. Modern systems since the mid-1990s implement encryption as well as rotating entry codes to prevent car thieves from intercepting and spoofing the signal.[3] Earlier systems used infrared instead of radio signals to unlock the vehicle, such as systems found on Mercedes-Benz,[4] BMW[5] and other manufacturers.
Key West, Florida Key West is 129 miles (208 km) southwest of Miami by air,[6] about 160 miles (260 km) by car, and 106 miles (171 km) north-northeast of Havana, Cuba.[7] Cuba, at its closest point, is 94 miles (151 km) south.[8] Key West is a port of call for many passenger cruise ships.[9] The Key West International Airport provides airline service. Naval Air Station Key West is an important year round training site for naval aviation due to the tropical weather, which is also the reason Key West was chosen as the Winter White House of President Harry S. Truman. The central business district is located along Duval Street and includes much of the northwestern corner of the island. The official city motto is "One Human Family."