Signals
“Signals” provides a quick and simple reference to various communications signals, such 10/11 Codes, Morse Code, Phonetic Alphabet, Police Color/Penal Codes, Q-Signals, and more. This app is great for anyone who listens to police scanners or for ham radio enthusiasts. You can quickly look-up common codes by selecting the type and then scrolling through the list for any given code.
