You will be happy to know that you will still be able to use your existing receivers. The new Z-1 comes with a synthesized module. That's right you will be able to dial your frequency in. The new radio also uses all the KO features as far as offset wheel and drop down wheel, etc. You will however need a JR radio charger and not a KO. Polarity is different!
Team Horizon-Team Spektrum-Tekno-Kyosho*B-FAST R/C Performance*TQ Racing Wire Products-TNT-FX.COM-Avid RC-Dynamite-*AKA*92Zero Design*