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FMA Direct 

– 3 – 

T-80RF user’s guide 

Safety precautions 

Radio controlled models are not toys!  Please observe these 
safety precautions: 
 

„

  Follow all instructions in this manual to assure safe 

operation. 

 

„

  If you have not assembled and operated a radio controlled 

model before, obtain help from an experienced modeler.  
You will need guidance to successfully assemble, test and 
operate radio controlled models.  One of the best ways to 
obtain help is to join your local radio control club. 

 

„

  Never fly radio controlled airplanes near people, buildings, 

telephone or power lines, cars, trees or other objects on the 
ground or in the air. 

 

„

 Keep 

your 

radio 

controlled models and equipment away 

from children.  Do not allow unauthorized people of any age 
to operate radio controlled models without proper 
supervision from an experienced modeler. 

 

„

  In some areas of the country, you cannot legally operate 

radio controlled models except at approved fields.  Check 
with local authorities first. 

 

„

  Observe frequency control.  If someone else is operating a 

radio controlled model on the same channel as your 
transmitter, 

do not turn on your transmitter—even for a 

short time

.  Your transmitter’s channel number is marked 

on the crystal cover (see next page).  When a model receives 
signals from two transmitters on the same channel at the 
same time, it cannot be controlled and will crash—possibly 
causing personal injury or property damage.  

For safety, 

most RC flying fields have formal frequency control 
rules.  Follow them carefully.

 

 

„

  Do not operate your radio control transmitter within 3 miles 

of a flying field.  Even at a distance, your transmitter can 
cause interference. 

 

„

  Do not operate radio controlled models and equipment in the 

rain, or at night. 

 

„

  Protect all electronic equipment from exposure to rain, 

water, high humidity and high temperatures. 

 

„

  Discard batteries in accordance with local waste disposal 

and recycling regulations. 

 

„

  FMA Direct recommends that you join the AMA.  They can 

help you find a club in your area. 

 

 Academy 

of 

Model 

Aeronautics 

  5161 East Memorial Drive 
  Muncie, Indiana  47302 
 
 Phone: 

(800) 

435-9262 

 Web: 

www.modelaircraft.org 

Besides the T-80RF transmitter, you’ll need: 
 

„

  Receiver, operating on the same radio control channel as the 

transmitter. 

 

„

 Switch 

harness. 

 

„

  Servos for moving aircraft control surfaces. 

 

„

  Optional extension cable for connecting aileron servo to 

receiver. 

 

„

  For an engine-powered aircraft: additional servo (for 

controlling engine speed), and battery pack to supply power 
to receiver and servos. 

 

„

  For an electric motor-powered aircraft:  electronic speed 

control (for controlling electric motor speed and supplying 
power to receiver and servos). 

 
 
 
 

Other radio components you’ll need 

Tip:

  FMA Direct carries a full line of compatible receiv-

ers, servos, electronic speed controls, battery packs, 
chargers and related flight equipment. 

1.  Locate the end of the antenna having the threaded hole. 
 
2.  Gently slide that end of the antenna into the antenna hole in 

the top of the transmitter, until the antenna can’t be slid in 
any farther (don’t force it). 

 
3.  Gently rotate the antenna clockwise (as seen from the top).  

Stop rotating when the antenna is secure. 

Installing the antenna 

Summary of Contents for T-80RF

Page 1: ...ocomputer FM radio control transmitter User s guide Note Read this manual carefully before operating this product FMA Inc 5716A Industry Lane Frederick MD 21704 Sales 800 343 2934 z Technical 301 668 7614 www fmadirect com ...

Page 2: ...reversing Switches conveniently located on the front panel change the direction of servo rotation This enables you to install servos and linkages in the best mechanical configuration then simply change a switch to obtain the correct direction of motion Tri rates Tri rates set by a switch on the front of the transmitter desensitize controls while you are learning to fly beginners tend to over contr...

Page 3: ... Follow them carefully Do not operate your radio control transmitter within 3 miles of a flying field Even at a distance your transmitter can cause interference Do not operate radio controlled models and equipment in the rain or at night Protect all electronic equipment from exposure to rain water high humidity and high temperatures Discard batteries in accordance with local waste disposal and rec...

Page 4: ...rying handle Battery condition indicator Left stick Power switch Neck strap hook Trims NiCad battery charging jack Servo reversing switches Function switches mixing tri rates and positive negative shift Crystal cover Note Look here for your transmitter s channel number Right stick ...

Page 5: ...e batteries for 24 hours Then before each flying session charge the batteries for 10 to 12 hours Caring for NiCad batteries NiCad batteries if properly maintained will provide long life About once per month you should fully discharge NiCad bat teries then fully charge them This helps prevent NiCad memory effects which can lead to lower capacity and false indications of proper charge level Tip Afte...

Page 6: ... Positive shift receiver JR Airtronics Sanwa Up on Note If your flying wing or V tail aircraft is equipped with an electronic mixer set T 80RF mixing to off CAUTION Be sure to check and if necessary change the Mix switch when you use the transmitter with a aircraft having a different control configuration For set Mix switch Conventional controls ailerons elevator rudder or electronic mixer in airc...

Page 7: ...ion when you move the transmitter s elevator stick all the way up or all the way down 9 Using the table below set the tri rate to match your skill level If you are a beginner ask your instructor for advice the instructor may want to test the aircraft at 100 then select a different setting before letting you control the Setting up the radio system continued Note At this point don t use the transmit...

Page 8: ...tion use a small flat blade screwdriver to change the position of the corresponding channel switch in the Reverse section of the transmitter s front panel Check control movement again Setting up the radio system continued Conventional controls Rear view Rear view Roll control aileron channel 2 Roll right Roll left Rear view Rear view Pitch control elevator channel 1 Pitch up Pitch down Rear view R...

Page 9: ...nel 3 Idle Full speed Rear view Rear view Roll control channel 2 Roll right Roll left Rear view Rear view Pitch control channel 1 Pitch up Pitch down Rear view Rear view Roll control channel 2 Roll right Roll left Rear view Rear view Pitch control channel 1 Pitch up Pitch down Note Stick movements and control throws shown on these pages are exaggerated for clarity Nor mal flying requires only smal...

Page 10: ... contain range check distances After starting the engine and before taking off check the con trols again Engine vibration may reveal loose connections or other radio system problems If the radio system doesn t per form perfectly stop the engine and correct any problems Conducting a radio system preflight check CAUTION If you are at or near a flying field ob serve frequency control rules and comply...

Page 11: ...ance by FMA Inc or an authorized FMA service station Limits and exclusions This warranty may be enforced only by the original purchaser who uses this product in its original condition as purchased in strict accordance with the product s instructions Units returned for warranty service to an FMA service center will be accepted for ser vice when shipped postpaid with a copy of the original sales rec...

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