There was no documentation on the remote radio head protocol so I had to reverse engineer it. Here is what I used:

• Hardware:
  • USB Logic Analyzer 24MHz 8CH
  • USB to TTL UART Adapter (Any USB serial adapter (UART) should work)
  • RJ12 Breakout Board (Makes wiring easier)
  • 6 Pins 3 Position DPDT Switch (Optional switch to change TX line between USB UART and Radio Head) (RX line doesn't need a switch)
  • 74LS157 - Quad 2-Input Multiplexer IC (Optional Multiplexer IC, can be used instead of a TX switch [Controlled by UART RTS Pin]) ****See bottom of Setup section
• Software
  • Logic software used with the Logic Analyzer to decode packets to/from radio
  • SerialTool software used to capture, modify and replay packets
• Issues
  • You can NOT connect 2 TX pins together (radio head + USB adapter) at the same time since they both will be a normally high state (5v). You will need a TX switch or another type of circuit if you want to control radio from both devices.

• Python (written in v3.13)
• Python modules (Install using "pip install -r requirements.txt" for Windows + Linux x64):
  • asyncio module
  • pySerial-asyncio module
  • DearPyGui module
    • If you're running an ARMv7/ARMv8 processor (Common in SBCs), you will have to manually build the DearPyGui module.
      (Grab some coffee, the build can take a while on lower end boards)
      
      

      apt update
      apt install git cmake python3 python3-dev libglu1-mesa-dev libgl1-mesa-dev libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev
      git clone --recursive https://github.com/hoffstadt/DearPyGui
      cd DearPyGui
      
      #Build for ARMv7 (Ex: Raspberry Pi 2)
      python3 -m setup bdist_wheel --plat-name linux_armv7l --dist-dir ../dist
      pip install ../dist/dearpygui-2.0.0-cp312-cp312-linux_armv7l.whl
      
      #Build for ARMv8 (Raspberry Pi 3 and above, also works on my Orange Pi Zero 3)
      python3 -m setup bdist_wheel --plat-name linux_aarch64 --dist-dir ../dist
      pip install ../dist/dearpygui-2.0.0-cp312-cp312-linux_aarch64.whl
      

• Right click "TH9800_CAT.py" file and start with Python.
• Open command line, CD to directory, and run "python.exe TH9800_CAT.py".

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