RF remotes generally work this way: The originating signal is sent from the remote as RF (radio frequency.) In the case of the MX-950 in my theater that's 418MHz, a very stable and reliable frequency band.
By nature, propane is clear and contains no scent at all. For safety purposes propane. companies add a substance known as ethyl-mercaptan to the propane fuel. Ethyl-. mercaptan has a strong rotten egg, or skunk-like scent, which allows the consumer to. smell it in the case of a leak.
Q: Coolant and smoke smell in vents. I was driving, and it smelled like coolant and heavy smoke was coming through the vents. A: Hello! It sounds as if your vehicle may hav... Hello! It sounds as if your vehicle may have burst a coolant line, and/or overheated. I suggest pressure testing the cooling system to help identify the leak.