BetaFPV A03 400mW 5.8G VTX
Of the 81 other 5.8 GHz analog video transmitters in our database, 16 have a lower maximum power than the A03 400mW 5.8G VTX (400 mW, 26 dBm), 5 the same and 60 a higher one; the class median is 800 mW.
| System | analog |
|---|---|
| Max power | 400 mW |
| Power levels | PIT / RCE / 25 / 100 / 400 mW |
| Frequency range | 5.8 GHz |
| Input voltage | 7-35V |
| Power draw | under 300 mA at 8 V (400 mW output) |
| Mounting | 26x26mm |
| Channels | 48 |
| Antenna connector | MMCX |
| Weight | 4.9 g |
Choosing between systems? See analog vs DJI vs Walksnail vs HDZero.
Where this data comes from
BetaFPV's product page prints the labelled block: Output power: PIT/RCE/25mW/100mW/400mW (10-26dBm), Supply voltage range: 7-35V, Current (8v): <300mA (400mW), Weight: 4.9g (excluding antenna), VTX size: 30.34*30.34*4.6mm, Mounting Hole Size: 26*26mm, Antenna: Air Antenna (MMCX Straight), Frequency: 5.8GHz 48 channels, Raceband: 5658~5917MHz, Channel SEL: SmartAudioV2.0 & Tramp. The board runs OpenVTx firmware, which is where the RCE (race) step comes from; power_levels_mw keeps the two named steps beside the three in milliwatts, as this column does elsewhere. Every figure is confirmed by the page's own graphics at full resolution: the dimension drawing measures 26mm x 26mm between hole centres, the scale photograph reads 4.90 g, the LED legend's power row is 0 / RCE / 25 / 100 / 400, and the A03 VTX Frequency Table is six bands of eight (A, B, E, F, R, L) - 48, which is what the block says. mount_mm is the mounting line, not the 30.34*30.34mm body. power_draw is the maker's own supply figure, 'Current (8v): <300mA (400mW)' in BetaFPV's spec list, read 2026-10-20 through scraper/propose_vtx_power_draw.py (the store's products.json, common.UA; the proposer now strips tags before decoding '<'); it is the VTX's input draw, not its RF output.