Building a custom radio control transmitter requires two main electronics subsystems; an encoder to read the joystick signals and all the various switches and generate a signal to transmit this information, and an RF deck to send the information to the receiver. In addition a physical transmitter (case, switches, batteries, etc) is needed, generally builders are upgrading there favorite old systems using the MicroStar 2000 electronics found on this site.

MicroStar Introduction

The web site contains information that will enable you to build your own custom radio control system. You will find technical information on this site as well as references to additional resources that will help you create your own system.