SITES UTEIS

http://www.dxfuncluster.com/

http://sdr.dyndns.org/

http://www.mfjenterprises.com/

http://www.qrz.com

http://www.ptt-radio.qsl.br/

http://www.iaru.org/

http://www.ac6v.com/

http://ce4wjk.wordpress.com/

http://www.echolink.org/

http://www.radioamador.com/site/

http://www.50mhz.com/site/

http://radioamadorismocarioca.blogspot.com.br/