YB1HDR Hendra Rachmat Greeting from Bogor, Indonesia Become an amateur radio since 1983, my first general license is YD1HDR upgrade to advance class by callsign YC1HDR (1992) upgrade to extra class by callsign YB1HDR (2005) [youtube https://www.youtube.com/watch?v=HZdlvklEUYA?rel=0&autoplay=1]
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