Happymodel Diamond VTX
Of the 81 other 5.8 GHz analog video transmitters in our database, 3 have a lower maximum power than the Diamond VTX (200 mW, 23 dBm), 4 the same and 74 a higher one; the class median is 800 mW. The Diamond VTX steps through 25 / 100 / 200 mW, which is 14 / 20 / 23 dBm: the top level is 9 dB above the lowest, about 2.8x the free-space range on the same antennas.
| System | analog |
|---|---|
| Max power | 200 mW |
| Power levels | 25 / 100 / 200 mW |
| Frequency range | 5.8 GHz |
| Input voltage | 4.8-5.5V |
| Power draw | 250-510 mA (typical) |
| Channels | 40 |
| Antenna connector | U.FL |
| Weight | 3.0 g |
Choosing between systems? See analog vs DJI vs Walksnail vs HDZero.
Where this data comes from
Happymodel's product post prints the block: Output power: 25~200mw switchable, Frequency: 40CH, Input voltage: 4.8v~5.5v, Current consumption: 250mA~510mA(type), Antenna: RG178 antenna U.FL interface, Frequency: 5.8GHz 5bands 40 channels, With Raceband, Smartaudio ready, Weight: 3g without antenna, plus the recorder rows: Video Output Size VGA (640x480), Video Output format NTSC, Record video size 1280x720 @25FPS, TF Card support Max.32G, Compress Format AVI. power_levels_mw is the manual's own instruction - "set vtx_power=1" is 25mw, "=2" 100mw, "=3" 200mw - and that manual prints the same 5-band 40-channel table (Band1 5865-5725, Band5 5658-5917 MHz). A transmitter that records to its own TF card on the VTX board rather than in the goggles; recording starts automatically at power-on and the manual warns there is no auto-save at power-off. power_draw is the maker's own supply figure, 'Current consumption: 250mA~510mA(type)', read 2026-10-17; it is the VTX's input draw, not its RF output.