AKK FX3 Ultimate Mini 20x20 25-600mW 5.8GHz
Listed as: AKK FX3 Ultimate Mini 20x20 25-600mW 5.8GHz - MMCX & U.FL
Of the 81 other 5.8 GHz analog video transmitters in our database, 24 have a lower maximum power than the FX3 Ultimate Mini 20x20 25-600mW 5.8GHz (600 mW, 28 dBm), 6 the same and 51 a higher one; the class median is 800 mW. The FX3 Ultimate Mini 20x20 25-600mW 5.8GHz steps through 25 / 200 / 400 / 600 mW, which is 14 / 23 / 26 / 28 dBm: the top level is 14 dB above the lowest, about 4.9x the free-space range on the same antennas.
| System | analog |
|---|---|
| Max power | 600 mW |
| Power levels | 25 / 200 / 400 / 600 mW |
| Frequency range | 5.8 GHz |
| Mounting | 20x20mm |
| Antenna connector | MMCX / U.FL |
| Price (approx.) | 26.49 USD |
AKK FX3 Ultimate Mini 20x20 25-600mW 5.8GHz VTX table for Betaflight
The band and channel frequencies and power levels as AKK 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 |
Frequencies in MHz; "—" is an unused slot. Power levels: 25 (value 0), 200 (value 1), 400 (value 2), 600 (value 3).
vtxtable bands 5
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 powerlevels 4
vtxtable powervalues 0 1 2 3
vtxtable powerlabels 25 200 400 600
saveSource: https://docs.google.com/document/d/1B97Ol2UQOWj8A2ZzzsRcIU3JlOwlX6hYAzeutjb6c1E/edit — AKK's own table document, a Google Doc that akktek.com links from its Race Ranger product page as 'AKK VTX Tables' (page read 2026-10-17 through the local browser, the doc exported as plain text); it holds one Betaflight vtxtable block per AKK transmitter. This is the block headed 'AKK FX3-ultimate FPV VTX Table'; its labels 25 200 400 600 are the four levels AKK's FX3-ultimate product page lists (https://www.akktek.com/akk-fx3-ultimate.html). Power values 0-3 are SmartAudio level indexes. The E band's three zeros are unused slots as AKK publishes them, which leaves 37 channels. Transmitting is only legal on the frequencies and power your country allows; see VTX frequency bands.
Choosing between systems? See analog vs DJI vs Walksnail vs HDZero.
Where this data comes from
power_levels_mw is AKK's own: the four levels its FX3-ultimate product page lists, and the power labels of the FX3-ultimate block in AKK's VTX table document (both read 2026-10-17).