Japan Remote Control Company, Limited, commonly called JR Propo, JR Racing, or just JR is a manufacturer of both high-end and entry-level R/C radio systems and servos, R/C helicopters and programmable robots.
Unique to JR Propo's radios is the company's patented ABC&W technology, or Automatic Blocking Circuit with Window. Simply put, this system rapidly reroutes incoming signals through a series of ever-smaller electronic "windows," effectively blocking out spurious signals which cause radio "glitching". Any signal that does get through the system is filtered before being sent to the servos all without noticeable lag or delay. If the signal is unable to be processed, it is rejected, again without noticeable reaction.
The brand is distributed in North America by Horizon Hobby. & MacGregor Industries In The UK.