RF FRQUENCY SELECTION
You may operate your T80 transmitter on any one of fifty RF channels at 72 MHz for airborne models and on any one of 30 RF channels at 75MHz by
selection of frequency at purchase. By F.C.C. regulations, you are not permitted to change the frequency determining element (Crystal) in your
transmitter unless you are a valid holder of an F.C.C. Second Class Operator's License.
4 OR 5 CHANNEL OPERATION
No matter how complex your model, T80 has the channel flexibility and capacity to allow you to operate any model you can build requiring from one to
five independent channels of control. If your transmitter has five channel capability, that option may be by either a switch for retract gear or by a control
knob provided for remote control of the sensitivity of the FMA COPILOT Dave(tm).
MIXING
The T80 has a program selection for mixing of aileron and elevator as used for elevons or V-tail controls.
SERVO REVERSING ON 4 CHANNELS
One can electronically change the direction of any servo using the control panel on the front of T80. A very important result obtains: Install the servos in
the most direct and functional way, to put the emphasis on the control linkage quality and reverse the servo's direction as necessary.
TRI-RATES FOR AILERON, ELEVATOR, AND RUDDER
Tri-rates gives the ability to desensitize the controls of the trainer aircraft while learning to fly without making permanent changes in linkages or available
servo travel.
TX BATTERY EVALUATION SYSTEM
Transmitter battery voltage is displayed at all times during operation. The tri-color LED display located at the upper edge of the face of the transmitter
glows green for normal operating range, transitions to yellow when the battery approaches 9V, and turns red when the danger zone is reached. If you
ever observe the display turning red, land or return your model to your presence as soon as possible. Please do check the warning light from time to
time, not after your model has crashed!
Thank you for choosing the FMA Direct T80RF, 4 channel, FM radio control transmitter. FMA Direct has been designing radio control equipment for
modelers for over 30 years. The "T80RF" uses an advanced microprocessor to control every function of the radio including:
•
Rates (50%, 75%, 100%)
•
Mixing (Elevon/Vtail Mix)
•
Servo Reversing (All 4 Channels)
•
Frequency shift selection (Positive or Negative)
The main purpose of the T80RF radio is to provide a flexible and reliable radio control system that will take the modeler into the 21st Century. The
"T80RF" meets all spectrum occupancy regulations imposed by the F.C.C.. The use of the Master Oscillator, Power Amplifier system of generating RF
allows for super narrow band, clean transmission. This permits virtually all the transmitted RF to be at the frequency of the interest instead of having
inefficient dissipation of power in unwanted harmonics. Careful shaping of the modulation pulses by a Miller Integrator ensures efficient use for the
occupied spectrum.
Please read this manual carefully before using your T80RF.
Let us know how the system works for you!
IN TR O D U C TIO N & FEA TU R ES
S P EC IFIC A TIO N S
SIZE:
6.75”L X 2.60”D (INCLUDING STICKS) X 6.25”H (INCLUDING HANDLE)
WEIGHT:
4 oz. (W/OUT BATTERIES)
FUNCTION:
4 CHANNEL, COMPUTER CONTROLLED, FM R/C SYSTEM
RF OUTPUT POWER:
400 Mw
FREQUENCIES:
ALL LEGAL 72 MHz AND 75 MHz R/C FREQUENCIES CH 11– CH 90
MODULATION:
FM/PPM (UNIVERSAL, SELECTABLE SHIFT + OR -)
POWER SYSTEM:
8 “AA” ALKALINE OR OPTIONAL ONE 8 CELL, NICD (600 Mah)
CURRENT DRAIN:
150 mA
OPERATING PULSE WIDTH
1.0ms TO 2.0ms EACH CHANNEL (1.5ms NEUTRAL)
FEA TU R ES
