Happymodel OVX306
Of the 81 other 5.8 GHz analog video transmitters in our database, 16 have a lower maximum power than the OVX306 (400 mW, 26 dBm), 5 the same and 60 a higher one; the class median is 800 mW.
Happymodel's own Betaflight VTX table is on this page: 6 bands of 8 channels (45 in use), 5333–5917 MHz, 5 power levels, SmartAudio. CLI commands and JSON file.
| System | analog |
|---|---|
| Max power | 400 mW |
| Power levels | 0 / 25 / 100 / 400 mW |
| Frequency range | 5.8 GHz |
| Input voltage | 5V |
| Power draw | under 650 mA at 5 V (400 mW output) |
| Mounting | 25.5x25.5mm |
| Channels | 48 |
| Weight | 1.5 g |
Happymodel OVX306 VTX table for Betaflight
The band and channel frequencies and power levels as Happymodel publishes them for SmartAudio control. Paste the CLI commands into Betaflight's CLI tab, or load the JSON file in Betaflight Configurator's Video Transmitter tab. How it works: setting up a VTX table in Betaflight.
| Band | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| A BOSCAM_A | 5865 | 5845 | 5825 | 5805 | 5785 | 5765 | 5745 | 5725 |
| B BOSCAM_B | 5733 | 5752 | 5771 | 5790 | 5809 | 5828 | 5847 | 5866 |
| E BOSCAM_E | 5705 | 5685 | 5665 | — | 5885 | 5905 | — | — |
| F FATSHARK | 5740 | 5760 | 5780 | 5800 | 5820 | 5840 | 5860 | 5880 |
| R RACEBAND | 5658 | 5695 | 5732 | 5769 | 5806 | 5843 | 5880 | 5917 |
| L LOWRACE | 5333 | 5373 | 5413 | 5453 | 5493 | 5533 | 5573 | 5613 |
Frequencies in MHz; "—" is an unused slot. Power levels: 0 (value 1), RCE (value 2), 25 (value 14), 100 (value 20), 400 (value 26).
vtxtable bands 6
vtxtable channels 8
vtxtable band 1 BOSCAM_A A FACTORY 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B FACTORY 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E FACTORY 5705 5685 5665 0 5885 5905 0 0
vtxtable band 4 FATSHARK F FACTORY 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R FACTORY 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable band 6 LOWRACE L FACTORY 5333 5373 5413 5453 5493 5533 5573 5613
vtxtable powerlevels 5
vtxtable powervalues 1 2 14 20 26
vtxtable powerlabels 0 RCE 25 100 400
saveSource: https://www.happymodel.cn/index.php/2022/02/25/happymodel-ovx306-openvtx-5-8g-48ch-400mw-vtx-replacement-of-whoop_vtx/ — Happymodel's own product post prints the table twice, once under '# SMARTAUDIO' and once under '# TRAMP'; this is the SmartAudio one, because its six bands times eight channels are the 48CH the same post's spec block states, and because its five power labels are that block's 'Transmitting Power: 0/RCE/25mw/100mw/400mw' read across. The Tramp table adds a seventh band, IMD6 I 5732 5765 5828 5840 5866 5740 0 0, and carries the same five labels over the power values 1 2 25 100 400 (mW, as Tramp takes them) where SmartAudio takes 1 2 14 20 26 (dBm). The E band's four zeros are unused slots in the dump as published, not frequencies we dropped. The part runs OpenVTx, which the post says detects the protocol itself, so both tables are the manufacturer's for the same transmitter.
Transmitting is only legal on the frequencies and power your country allows; see VTX frequency bands.
Every manufacturer table in the database, with one archive of all the files: VTX table library.
Choosing between systems? See analog vs DJI vs Walksnail vs HDZero.
Where this data comes from
Happymodel's own product post prints the labelled block: Model: OVX306, Frequency: 5.8G 48CH, Transmitting Power: 0/RCE/25mw/100mw/400mw, Power supply: DC 5V, Current (5v): <650ma (400mw), Weight: 1.5gram without antenna, Center distance of mounting holes: 25.5mmx25.5mm. power_levels_mw keeps only the steps the page states in milliwatts - the list also carries a step labelled 'RCE' between 0 and 25 whose power is never given a figure. frequency_range keeps the 5.8 GHz class label this column uses for the band; the two Betaflight vtxtables pasted on the same page (SmartAudio and Tramp) run from 5333 MHz (LOWRACE L1) to 5917 MHz (Raceband R8). No antenna connector is recorded: the page says only that the module is 'the same size as whoop_vtx and whoop_vtx_hp, and the interface are also exactly the same', which is a compatibility statement about two other boards and not this one's own spec. Sold as the replacement for the discontinued whoop_VTX and whoop_VTX_hp, and the transmitter the Cine8 kit has shipped with since 25 Feb 2022. Runs the open-source OpenVTx firmware, so both SmartAudio and Tramp are supported and detected automatically. power_draw is the maker's own supply figure, 'Current (5v): <650ma (400mw)', read 2026-10-17; it is the VTX's input draw, not its RF output.