Section 1: Using this manual
R649 Receiver
R770 Receiver
Section 2: Features
G5
This Manual is divided into three specific sections: 
Airplane, Sailplane and Helicopter. When writing this 
manual we employed three distinctly different individuals 
to write the sections that most pertained to their expertise. 
The Aircraft section was written by a top notch aerobatic 
pilot, the Sailplane section by a very experienced sailplane 
competitor and the Helicopter Section by a member of 
the 2003 USA F3C team. Each section may read and feel 
slightly different because of the different personal styles 
that each of these authors has used.
In this manual you will find the specifications for the radio 
and its various components and accessories. In addition, 
guidelines for the installation have been included. 
Instructions for setting all the functions and programs are 
presented in the three sections of the manual: Airplane, 
Helicopter and Sailplane. These features are discussed 
in the same order that they would normally be needed to 
set up a typical aircraft, helicopter and 6 servo winged 
sailplane respectively. An explanation of the use and 
purpose of each feature is provided, followed by a labeled 
illustration of its respective LCD display.
A blank data sheet has been included at the end of each 
section. Once all data has been input for a particular 
model, it is highly recommended that you record it on a 
copy of the sheet provided. 
The computer-designed, ergonomically-styled transmitter 
case ensures a comfortable fit in your hands. You will also 
be introduced to our exclusive “Rolling Selector” on the 
face of the transmitter for fast and effortless movement 
through any programming sequence. The ultra-precision 
control sticks offer adjustable spring tensions and 
length. The throttle stick offers a ratchet in Airplane/
Sailplane configuration. 30-model memory storage 
allows programming of all parameters of thirty separate 
airplanes, helicopters or sailplanes; you can program 
more than one setup for a single aircraft, allowing you to 
instantly change the flight characteristics.
R770 (Basic Air and Sailplane Systems)
The R770 is a high-performance PCM single-conversion 
receiver with 10KHz super narrow band ABC&W circuitry.
A narrow band ceramic filter for high-signal selectivity 
assists in rejecting cross modulations from other common 
radio frequencies, such as RC transmitters or local paging 
systems.
This receiver features Direct Servo Control (DSC) for 
control of servos without radio frequency output.
The receiver has low current consumption.
The R770’s Slimline design allows it to fit into most 
model applications.
R649 (Advanced Air, Basic & Advanced 
Helicopter Systems)
The R649 is a high-performance PCM single-conversion 
receiver with 10KHz super narrow band ABC&W circuitry.
A narrow band ceramic filter for high-signal selectivity 
assists in rejecting cross modulations from other common 
radio frequencies, such as RC transmitters or local paging 
systems.
This receiver features Direct Servo Control (DSC) for 
control of servos without radio frequency output.
The receiver has low current consumption.
The R649’s credit card size design allows it to fit into most 
model applications.