下载 APKPure App
可在安卓获取Signals的历史版本
来 Google Play 网购吧！购买内容之后，立刻就可以在您的 Android 手机或平板电脑上享用，摆脱一切同步烦恼。
"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.