One caution, if you are using the Hitec with a Futaba (buddy box hookup) be sure to use the Hitec trainer cord, NOT Futaba cord. The Hitec cord is polarized, i.e. you have an end labeled "Master" that needs to be on the unit that is transmitting. I hear you can use a Futaba cord providing that you remove the crystal and battery from the slave unit but can not verify that as fact.