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Tactic TTX850 8 Channel Computer Radio Mode 2 with TR825 Rx


The TTX850 is was developed from the TTX650, contains all the options of this successful RC system and expands them. Now there are 8 channels available, a 30 model memory, further software options giving more programming possibilities, transmitter battery and charging unit with exchangeable plugs. With this you have all functions necessary to enable you to perfectly and safely control any aircraft, ship, vehicle, quadcopter or helicopter - thanks to the future-orientated SLT transmission protocol.

Simple and intuitive programming sets the TTX850 apart from other comparable systems. The large illuminated LCD screen displays graphics and mixer curves etc. better, and with adjustable contrast, the screen is always perfectly readable. Quality, functionality and attractive pricing make the TTX850 a perfect RC system for all applications.

A further highlight is the wireless and wired teacher/trainee system, compatible with all other Tactic transmitters having the same function. The included TR825 diversity receiver is equipped with a double antenna, providing greater range and additional operational safety.


  • 8-channel computer RC system with even more comprehensive flight, quadcopter and helicopter programs
  • SLT transmission protocol, compatible with all Tx-R model from the Hobbico range
  • Maximum range
  • Internal transmitter aerial
  • 30 Model memory
  • Programmable vibration alarm
  • Mode 2, convertible to Mode 1 (Mode 3/4 via software)
  • All transmitter channels freely asignable to receiver outputs
  • Numerous free and preset mixers
  • Teacher/trainee system with freely definable channel assignment
  • Freely programmable switch assignment
  • Two lateral rotary switches
  • Dual rate and exponential (ailerons, elevator and rudder)
  • Programmable timers
  • Ball bearing gimbals
  • Ergonomic design
  • Large illuminated LCD screen
  • Supports update
  • Charging jack: FutabaŽ-compatible
  • Trainer jack


TTX850 Transmitter:

  • Channels: 8
  • Frequencies: 2.403-2.480 GHz
  • Modulation: FHSS
  • Protocol: SLT
  • Transmitting power: <100 mW
  • Operating voltage: 3.4-7.0 V
  • Current consumption: approx. 100 mA

TR825 Receiver:

  • Channels: 8
  • Fail-Safe: all channels programmable
  • Operating voltage: 3.6 - 8.4 V
  • Connection system: JRŽ/FutabaŽ Standard
  • Dimensions: 45 x 28 x 13 mm
  • Weight: 10.2 g

Transmitter Functions:

  • Model Select
  • Model Management (name, type, copy reset & wireless transfer)
  • Trim Settings
  • Ch5-Ch8 Assignment
  • Wired & Wireless Trainer Functions (with selectable channels)
  • Warnings (Rf on/off, low battery, throttle position, throttle cut, throttle hold, no signal & auto power-down)
  • Wired and wireless model copy function
  • Range Test
  • Fail-Safe with selectable channels (actually an Rx function)
  • Firmware updates (through built-in USB interface)
  • System Setup (user name, stick modes, LCD contrast, speaker volume, battery alarm, vibration intensity & LCD backlight)

Airplane Functions:

  • 6 Programmable Mixes
  • 8 Wing Types (normal, V-tail, delta, single aileron, dual aileron, aileron + flap, 2 aileron + flap & dual elevator)
  • Throttle Curve (12-point)
  • Throttle Cut
  • Advanced Gyro Gain
  • Aileron Mixing
  • Rudder Mixing
  • Aileron Differential
  • Flap Mixing
  • Air Brake Set
  • RF Output
  • Timers
  • Camera Gimbal
  • Digital Switch Assignment

Helicopter Functions:

  • 6 Programmable Mixes
  • 3 Swash Plate Types (1 servo; 2 servos/180°; or 3 servos/140°)
  • Throttle Curve (12-point)
  • Throttle Cut
  • Throttle Hold
  • Pitch Curve (12-point)
  • Pitch-Curve Hold
  • Advanced Gyro Gain
  • Swash Plate Ring
  • Throttle Mixing
  • Swash Plate Mixing
  • Cyclic Mixing
  • Rudder Mixing
  • RF Output
  • Timers
  • Camera Gimbal
  • Digital Switch Assignment

Multi-Rotor Functions:

  • 6 Programmable Mixes
  • Throttle Curve (12-point)
  • Throttle Cut
  • Throttle Hold
  • Advanced Gyro Gain
  • RF Output
  • Timers
  • Camera Gimbal
  • Digital Switch Assignment


  • TTX850 2.4 GHz 8-Channel Computer Transmitter
  • TR825 2.4 GHz 8-Channel Receiver
  • 4.8V 1000 mAh NiMH transmitter battery-
  • NiMH ECO-charger with exchangeable adaptors for EU, UK, and US connector systems


£197.99 Each

Out of stock.
Contact Steve Webb Models
for more details
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