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TBS Unify Pro 5G8 V3


Full documentation available here:

This section/article is being written and is therefore not complete.
Thank you for your comprehension.





TBS published V1 and V2 of SmartAudio:

  • All the Unify Pro with 5V power supply run SmartAudio V1.
  • SmartAudio V2 was introduced by Unify Pro HV together with PitMode and CleanSwitch.

General concept of wiring


Simply connect as shown above.

In case Audio is working but not Smartaudio we recommend adding a AC coupling 100nF ceramic capacitor (no polarization):


If audio is not loud enough you might try this configuration:


The proper way like we use it in our systems is this (note that usually the microphones already include the ac coupling 100nF capacitor):


Notes for the last diagram:

  • If the serial data comes from a microcontroller with 3.3V, best solution is to use a voltage divider to ~0.9V for a proper audio level (4k7 and 1k8 resistor values in our case).
  • The analog signal needs to be ac coupled using a series capacitor from audio source to the smart audio signal. Ideal capacitance is around 100nF using a ceramic cap.

VTX Adjustments via LUA

only works in DISARMED mode!

To adjust the VTX settings via LUA you will need to connect the telemetry or smart audio port of your Tramp or Unify VTX to RX3 on the bottom of the KISS FC or on the top of the CC.

VTX Adjustments via STICK INPUT

only works in DISARMED mode!

As a reminder: VTX adjustments work for some time now via ANY transmitter through stick input. No need for LUA or GUI.

Throttle stick up, YAW left will let you select the band, Throttle stick up Yaw right selects the frequencies, confirmed by a number of beeps, signaling the selection.

You can leaf through them by pushing the Pitch stick up. Roll left goes down one step, Roll right goes up.

As an example, from Band A, channel 1 you want to go to Band B, channel 2
Throttle stick up, Yaw left, Pitch stick up, Roll right (2x long beeps for band B), then Throttle stick up, YAW right, Pitch stick up, Roll right (2x short beeps for channel 2) will do the job.

Menu and Frequency Tables

Menu Table

  1x 2x 3x 4x 5x 6x 7x 8x
1x Channel 1 2 3 4 5 6 7 8
2x Band A B E Airwave Race Band Low Race Band    
3x Power Level 25mW 200mW 500mW 800mW        

Legend: in yellow: requires HAM licence to operate legally

Frequency Table

Channel 1 2 3 4 5 6 7 8
Band A 5865 5845 5825 5805 5785 5765 5745 5725
Band B 5733 5752 5771 5790 5809 5828 5847 5866
Band E 5705 5685 5665 5645 5885 5905 5925 5945
Airwave 5740 5760 5780 5800 5820 5840 5860 5880
Race Band 5658 5695 5732 5769 5806 5843 5880 5917
Low Race Band* 5621 5584 5547 5510 5473 5436 5399 5362

(*) Unify PRO HV Race Special Edition only


By default, the Unify Pro is locked. The below procedure explains how to unlock (FOR HAM USERS ONLY!)

  1. Power up quad
  2. press 3s long, let go (to enter the channel setting menu)
  3. press 3s long, let go (to enter the band setting menu)
  4. press until the double-lights come on, and then go off (about 25 seconds)
  5. press 3s long to save and exit the menu
To lock the transmitter, go back into band select menu and press the button for 20 to 25 seconds again.

Pages in category "Drones/FPV/VTX/TBS-UNIFY-Pro-5G8-V3"

This category contains only the following page.