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Books & Reference

by Four Winds Solutions LLC


Developer Notes

"Signals" provides a quick and simple reference to various communications signals, such 10/11 Codes, Morse Code, Phonetic Alphabet, Police Codes, Q-Signals, and more. Great for police scanners and ham radio enthusiasts.
Update: Added Scuba Diving Hand Signals and other minor corrections.


Signals — Learn a wide variety of signals. This app has everything from basic Braille to military hand signals and emoticons. It includes police codes, scuba diving hand signals, semaphore flag signals and much more. Did you know that this })i({ is a butterfly? Highly Recommend!