The result is , i have broken the power button... I have buy some parts last week (propeller,led,expansion board...) and now i can put in the trash ... i have try with a 250 quad Can i use my PA radio with the nrf http://www.amazon.de/gp/product/B00MLSRJ4Y/ref=ox_sc_act_title_1?ie=UTF8&psc=1&...