Japan Remote Control Co., Ltd. (日本遠隔制御株式会社; ''Nippon Enkaku Seigyo Kabushiki Gaisha'') (commonly called source Propo, source Racing, or hum) was a Japanese manufacturer of popular

radio control Radio control (often abbreviated to RC) is the use of control signals transmitted by radio to remotely control a device. Examples of simple radio control systems are garage door openers and keyless entry systems for vehicles, in which a smal ...

devices including

transmitter In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the ...

s, receivers, servos, electronics, programmable robots and

model aircraft A model aircraft is a small unmanned aircraft. Many are replicas of real aircraft. Model aircraft are divided into two basic groups: flying and non-flying. Non-flying models are also termed static, display, or shelf models. Aircraft manufactur ...

. JR has ceased production of RC equipment.

Overview

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. Competing brands of radio control systems include,

Spektrum RC Spektrum is a brand of radio control systems designed for use with hobby radio-controlled cars and aircraft. Spektrum is a division of Horizon Hobby. The R/C hobby in the United States, Japan, and Europe typically used to employ FM radio control ...

, Sanwa, Futaba, Hitec,

KO Propo KO PROPO is a brand of radio control equipment and humanoid robot ( KHR-1) by Kondo Kagaku, established in Tokyo, Japan in 1945. In 1982 KO PROPO introduced the Expert EX-1, reported to have been the first to integrate a pistol grip into a transm ...

Jeti Jeti is a village in Tõrva Parish, Valga County in Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the ...

, Acoms and

Multiplex Modelsport Multiplex Modellsport GmbH & Co. KG of Bretten-Gölshausen, Germany is a manufacturer of hobby-grade radio control electronics, electric radio-controlled airplanes and electric helicopters. Their aircraft models are molded of a proprietary ex ...

References

External links

Japan Remote Control Co., Ltd.

Japan Remote Control Co., Ltd.

JR Propo in Australia

JR Propo in America

Radio-controlled transmitter Japanese brands {{Tech-company-stub