Is the range of 2.4g device shorter than traditional 72mhz device?
Whether the 2.4g device safer than 72MHZ device or not？
RC HOBBY Magazine RC HOBBY-helicopter-knowledge
The basic knowledge of rc aircraft
June 24, 2010 — SecondstupidTransmitter
Generally in communication and information processing, a transmitter is any object (source) which sends information to an observer (receiver). When used in this more general sense, vocal cords may also be considered an example of a transmitter.
What is ppm ?What is pcm?
June 23, 2010 — SecondstupidPCM
Pulse Code Modulation. A scheme in which the commanded position for each servo is transmitted as a digitally encoded number. Manufacturers use their own proprietary system to encode this number with various levels of precision (i.e. variable number of bits per servo position). JR use Z-PCM (9 bits, 512 different values: 0…511) then S-PCM (10 bits, 1024 values: 0…1023). Futaba use PCM-1024 and G3 PCM (11 bits, 2048 values: 0…2047).
What is futaba?
April 15, 2009 — SecondstupidFutaba Corporation (双葉電子工業株式会社 ,Futabadenshikougyoukoujoukaisha?) (lit. Futuba electronics manufacturing corporation) TYO: 6986 is a Japanese company that manufactures popular hobby-grade radio control systems including transmitters, receivers, servos, electronics and model aircraft. These products are used as the electronic link between the person controlling a model aircraft and the ground and the actual remote control system in the vehicle. Futaba was created in 1948.
Over a quarter of a century ago, Futaba became one of the first companies of its type to provide comprehensive radio control products, selection and service to hobbyists. Futaba systems and products were quickly accepted and used by serious competitors and casual enthusiasts alike. Futaba products are used in the air, on the water, underwater and on the ground for all types of RC models.
Competing brands of radio control system brands include Hitec, Airtronics and Japan Remote Control.
The brand is distributed in North America by Hobbico of Champaign, Illinois, USA.
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