【實用書籍app】HamQuery|最夯免費app-綠色工廠好玩App

Use HamQuery to look up information on amateur radio (ham radio) callsigns including all USA callsigns, major DXpeditions and active DXers. View names, addresses, location information as well as a map and picture where available.Send e-mail or open the callsign owner's website directly from the app.Callsign data is obtained from the free HamQTH.com callsign database with over 1.3 million callsigns and growing.