ENTIDADES

APRS.NET	http://www.aprs.net
	http://www.digigrup.es
RUTGERS	http://aprs.rutgers.edu
	http://www.packetradio.org.uk
	http://web.usna.navy.mil/~bruninga/aprs.html
	http://www.tapr.org/
	http://www.qsl.net/ea1uro/aprs.html