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.
Be Prepared for a Natural Disaster: 1  Make sure you and your family know what propane smells like: propane has a strong, unpleasant smell (like rotten eggs or a skunkâs spray). 2  Show your family where the outdoor propane supply and indoor propane appliances are located, and teach them how to turn them off.