Slim Jim and J Pole calculator

http://m0ukd.com/calculators/slim-jim-and-j-pole-calculator/

Transmissor de FM estéreo 80w 

FlavioTec

http://flaviotec.blogspot.com.br/2009_10_01_archive.html

ZR6AIC RASPBERRY PI SDR SERVER RTL-2832U

http://zr6aic.blogspot.com.br/2013/02/setting-up-my-raspberry-pi-as-sdr-server.html