code transmitter การใช้

In many stories, Ebony exhibited above average knowledge of science; for example he constructed a Morse Code transmitter using a standard light bulb socket and an electric alarm.
A rolling code transmitter is useful in a security system for providing secure encrypted radio frequency ( RF ) transmission comprising an interleaved trinary bit fixed code and rolling code.
Among other espionage equipment, he reportedly had a morse code transmitter operated by an alphanumeric keyboard similar to a Traeger Transceiver which was disguised as a typewriter.
The pilot listened for the stronger of the Morse codes transmitters ( " ? " for "'A "'and " ?" for "'N "') ( indicating left or right of the course ); the objective was to be centered on course hearing a steady tone ( the A and N Morse codes merge to form a steady tone when the receiver is equidistant from both transmitters ).