BetaFPV A03 400mW 5.8G Open VTX
SKU: 81556335688

BetaFPV A03 400mW 5.8G Open VTX

Sale price$19.27 Regular price$21.41
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Description

BetaFPV A03 400mW 5.8G Open VTXFeatures An open source video transmitter with OpenVTx firmware. The A03 VTX supports SmartAudio and Tramp protocols. Through these protocols, the flight controller is able to adjust the video transmitter settings, which are the power, the band, and the channel of the transmission. A03 VTX is a high quality 5. 8GHz VTX with strong anti interference ability and stable transmission. Comes with PIT RCE 25mW 100mW 400mW adjustable output power, allowing

Features

  • An open-source video transmitter with OpenVTx firmware. The A03 VTX supports SmartAudio and Tramp protocols. Through these protocols, the flight controller is able to adjust the video transmitter settings, which are the power, the band, and the channel of the transmission.
  • A03 VTX is a high-quality 5.8GHz VTX with strong anti-interference ability and stable transmission. Comes with PIT/RCE/25mW/100mW/400mW adjustable output power, allowing the perfect amount of output power to be selected based on your FPV needs.
  • Overall weighing 4.9g with a small-size layout, A03 VTX comes with a 26*26mm mounting hole and is perfectly suitable for whoop or toothpick drones like the X-Knight series, Beta85X/95X series, TWIG series, and Pavo series drones.
  • Featuring a fixed mounting hole and 6-pin connector, less solder work needed, which makes it's super easy to install.

Know More About OpenVTx

Big thanks to Jye Smith and all contributors for their time and energies to OpenVTx project.

OpenVTx refers to open source video transmitter firmware for the FPV community, which aims to provide firmware with both the SmartAudio and Tramp protocols. Either protocol can be used on the flight controller and on VTx power up the protocol used is automatically detected by OpenVTx. For more information, you can know it from OpenVTx GitHub.

Specification

  • Item: A03 5.8G VTX
  • 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
  • Modulation type: FM
  • Antenna port: 50 Ω
  • Operating temperature: -10℃~+60℃
  • Recommend drones: 26*26mm mounting hole

Pinout Diagram for A03 VTX

Below is the diagram picture for A03 400mW 5.8G VTX.

Below is the instruction diagram for connecting the VTX with Toothpick F722 2-6S AIO Brushless Flight Controller 35A(BLHei_32) . The line color in the diagram matches the 6-pin connector wires' color.

VTX Frequency Table

Betaflight CLI for SmartAudio or Tramp protocols can be obtained from here:

https://github.com/OpenVTx/OpenVTx

Included

  • 1 * BETAFPV A03 5.8G VTX
  • 1 * 6-Pin FC Cable
  • 1 * Air Antenna(MMCX Straight)
  • 3 * Anti-Vibration Rubber Dampers
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81556335688

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Greg Love
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★★★★★ 5
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Size: 01
We need a little help in organizing our kitchen. We got this little gym. We put hand soap, dish soap, and a scrub brush in here. All in one place. Neat and tidy. And attractive to boot. I highly recommend it.
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Reviewed in the United States on December 28, 2025
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MERCIE N
Charlottesville, US
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Size: 01
Very well made product & durable & highly recommended that provides all features. Dish soap & space for wet sponge to drip into sink & compartments to store cleaning brushes etc Money worth the buy & can’t go wrong.
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Reviewed in the United States on March 29, 2026
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Moira | Mench2b living
Omaha, US
★★★★★ 4
Yess. Worth it
Size: 01, Size: 01
My husband I were looking for something just like this to be organized around the sink. It holds the water that drains off the brushes until you drain it intentionally. The soap dispenser is a little smaller than we were looking for and you do have to make sure the sponge is squeezed out because the front does not catch the water. That is why I have it slightly over the edge of the sink. I do like draining feature though for the brushes. The size is perfect for next to the sink.
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Reviewed in the United States on February 17, 2025
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Roberto Acosta
Lake Worth, US
★★★★★ 5
Aseos
Size: 01
Muy práctico puedes poner otros artículos necesarios en tu lavamanos
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Reviewed in the United States on April 21, 2026
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guy in OKC
Lake Worth, US
★★★★★ 3
looks good, but doesn't dispense soap very accurately
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The pump got clogged up pretty quickly. Had to hit the pump hard, which caused too much soap to come out, too fast, at unpredictable angles. Also, the "stainless steel" surface stains very easily and once it stains, it seems impossible to clean it adequately. Going to replace it.
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Reviewed in the United States on October 5, 2024

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