Vtx-tables -

Once I know this, I can help you find the right VTX table or tell you how to set it up. How to configure VTX tables for drone? - Facebook

Defines available power output, mapping mW (e.g., 25, 200, 800) to dB values. Why You Need Them vtx-tables

Without a correct VTX table, you cannot change your video channel or power output via your radio (OSD/stick commands). If the VTX table is wrong, it may revert to default settings (often 25mW) every time you plug in your battery. How to Configure VTX Tables (Betaflight) Once I know this, I can help you

Many VTXs come "locked" to legal frequencies/power. You must apply an unlocked table or use the manufacturer’s instructions to unlock it, otherwise, you cannot use high-power modes. Reboot: Always save and reboot after applying a VTX table. To get you the exact answer, I need to know: What is the exact model of your VTX ? What protocol are you using (SmartAudio or IRC Tramp)? Why You Need Them Without a correct VTX

Newer VTXs use SmartAudio 2.1+ (power in dB), while older ones use 2.0 (power in 0-3 values).