I’m a huge fan of SavvyStews and Aluminum Lady, and used to enjoy standing just outside of the AA Cargo building on the airside while watching planes take-off and touchdown.
You may be right-it seems to be drifting off. Too bad. There have been some great and funny discussions as well as some super insults on this thread. Hope it goes on life support and lives another day.
How about a non-controversial discussion? Where is the remote receiver for a car, specifically the PT Cruiser? I’ve always wondered why I can just aim the key in the general direction of the car and unlock/lock it.
I have millions of remotes, and sort of understand how home remotes work. I never thought about cars…
Modern car remotes use radio frequencies, which would give you a much wider “field” to find the target vehicle.
Keyless remotes contain a short-range radio transmitter, and must be within a certain range, usually 5–20 meters (15–60 ft), 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 implement encryption to prevent car thieves from intercepting and spoofing the signal. Earlier systems used infrared instead of radio signals to unlock the vehicle, such as systems found on Mercedes-Benz,[3] BMW[4] and other manufacturers.
Home remotes use IR light to signal the device, and must be reasonably aimed at the target.
The main technology used in home remote controls is infrared (IR) light. The signal between a remote control handset and the device it controls consists of pulses of infrared light, which is invisible to the human eye, but can be seen through a digital camera, video camera or a phone camera. The transmitter in the remote control handset sends out a stream of pulses of infrared light when the user presses a button on the handset. A transmitter is often a light emitting diode (LED) which is built into the pointing end of the remote control handset. The infrared light pulses form a pattern unique to that button. The receiver in the device recognizes the pattern and causes the device to respond accordingly.[26]