Are you in Australia looking to buy a high - performance FPV VTX? The BetaFPV M03 is an ultralight 5.8GHz analog VTX, crafted for 65 - 85mm whoop drones to enable longer - range flights. Pair it with the outstanding ExpressLRS 2.4G radio link, and you can fly your whoop drones further, unlocking more fun and possibilities.
Key Features:
- With an output power ranging from 25 to 350mW, it offers a stable image and strong transmission.
- Weighing only 1.1g and featuring a tiny size, it's perfect for 65 - 85mm whoop drones. Its screw mounting holes fit the BETAFPV micro canopy, and the JST - 0.8 camera connector is compatible with BETAFPV C02 cameras.
- Comes with an IPX type antenna, which is plug - and - play, eliminating the need for extra soldering.
- Highly recommended for use with ELRS 2.4G FC boards like the F4 1S 5A FC (ELRS 2.4G) or F4 1S 12A FC (ELRS 2.4G).
Specification:
- Item: M03 5.8G VTX
- Output power: 25/100/200/350mW (adjustable)
- Supply voltage range: 4.5 - 5.5V
- Weight: 1.1g (antenna not included)
- VTX internal size: 18X14mm
- Frequency: 5.8GHz 48 channels, with Raceband: 5658~5917MHz
- Channel SEL: SmartAudio
- Modulation type: FM
- Frequency control: PLL
- All harmonic: Max - 50dBm
- Frequency stability: ±100KHz (Typ.)
- Frequency precision: ±200KHz (Typ.)
- Channel carrier error: ±1.5dB
- Antenna port: 50 Ω
- Operating temperature: - 10℃~+80℃
- Camera connector: JST - 0.8, compatible with cameras like BETAFPV C01, BETAFPV C02, and NewBeeDrone BeeEye.
Package:
- 1 * BETAFPV M03 5.8G VTX (antenna assembled)
- 5 * 30AWG silicone wire (30mm)



Using the BetaFPV M03 VTX is easy. First, make sure your drone is powered off. Connect the VTX to your compatible camera using the JST - 0.8 connector. Then, connect it to your FC board as shown in the provided diagrams for the F4 1S 5A FC (ELRS 2.4G) or F4 1S 12A FC (ELRS 2.4G). Once connected, power on your drone. To change the band, channel, or power, enter the OSD menu by moving the radio transmitter sticks (Pitch Stick UP and Yaw Stick Left). Then go to FEATURES -> VTX SA to adjust the frequency point and power. You can also use the power button to change the output power between 25mW, 100mW, 200mW, and 350mW.
Some things to keep in mind: Always operate the VTX within the supply voltage range of 4.5 - 5.5V to avoid damage. The operating temperature should be between - 10℃ and + 80℃. When handling the VTX, be gentle as it's very lightweight and delicate.
For maintenance, keep the VTX clean and free from dust. If you notice any issues with the image quality or transmission, check the connections first. If problems persist, consult the manufacturer or a professional.