APRS is a registered trademark Bob Bruninga, WB4APR 1 APRS.org APRS Summary May 2011 Jan 2011 Maps – Mobiles - Users Human to human info exchange!APRStt.
LE005-R2 Mode-UV Linear Transponder William Leijenaar,PE1RAH.
AMATEUR RADIO (Ham RADIO)
Pierric Guiral – English Class - 19/04/2013. What is Ham Radio ? Why Ham Radio ? My object : a QSL card 2.
