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AVIATION / Video & radio / REVIEWED 2026-09-11

E02Video transmitter

Send the camera feed to a compatible ground receiver.

Manufacturers & products

A video transmitter encodes or modulates the piloting feed and drives the airframe antenna. Analog and digital ecosystems require different cameras, goggles and control integration.

American sourcing options appear first. A U.S. company or distributor label does not establish U.S. manufacturing. The origin notes identify the specific evidence and any limits.

manufacturer

Divimath / HDZero

Freestyle V2 VTX

Digital FPV transmitter with compatible HDZero cameras and receivers. [3][4]

U.S. company

Divimath states US ownership and that its products are manufactured in Thailand. This is a US-company listing, not US manufacturing; obtain SKU/lot documentation if origin is material. [3][4]

Program / application

5-inch HDZero candidate; use a supply within its stated input ceiling [3][4]

Company location: USA (company); Thailand production stated

Online catalog / ordering

Official product page provides a catalog or inquiry route; verify current stock, revision, firmware and connectors before ordering.

Product scope & qualifications
  • Published maximum input is 25 V, below 25.2 V for a fully charged 6S pack; use an appropriate regulated rail.
  • VTX-only mass differs from the full camera/antenna kit.
View catalog & ordering
distributor

Rotor Riot (Fat Shark retailer)

Aura analog VTX

US retail route for a configurable analog video transmitter. [2][1]

U.S. distributor

Rotor Riot is an Orlando, Florida retail business. This Fat Shark listing does not establish the camera or transmitter assembly country; NDAA/Blue UAS marketing is not US manufacture evidence. [2][1]

Program / application

5-inch analog FPV candidate [2][1]

Company location: Orlando, Florida, USA

Online catalog / ordering

Official product page provides a catalog or inquiry route; verify current stock, revision, firmware and connectors before ordering.

View catalog & ordering
manufacturer

DJI

O4 Air Unit Pro

Integrated digital video transmitter and matched camera ecosystem. [5][6]

International supplier

DJI identifies headquarters in Shenzhen, China. The reviewed specifications do not establish the factory or country of origin of a particular O4 unit. [5][6]

Program / application

5-inch digital FPV candidate; verify goggles, mounting and cooling [5][6]

Company location: Shenzhen, China

Online catalog / ordering

Official product page provides a catalog or inquiry route; verify current stock, revision, firmware and connectors before ordering.

View catalog & ordering

What remains unverified

  • No comparable independent latency or thermal test across these three systems was retrieved.
  • Aura manufacturing origin is not established; US-owned HDZero explicitly reports Thailand production.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

  • Receiver/goggle ecosystem

    Confirm exact generation and firmware compatibility before selecting a transmitter.

  • Live-video modes

    Resolution and frame rate change latency, image quality and recording capabilities.

  • Supply and transients · V

    Compare input limits against a fully charged 6S pack and regulator behavior.

  • Power consumption and heat · W

    Size the regulator and provide airflow; bench operation can be thermally different.

  • RF configuration

    Frequency and power settings must match the operating region and permitted use.

  • Antenna interface

    Match impedance, connector and polarization; secure fragile coax connectors.

  • Mount and mass · g

    Include camera, cable, heat sink and antenna rather than comparing bare boards.

  • Control and OSD

    Check UART protocol, OSD support and firmware features for the selected FC.

Selection & integration notes
  • Treat nominal battery cell count as shorthand; compare actual minimum and maximum voltage.
  • Avoid treating RF output-power options or advertised range as a guarantee of permitted operation or real-world link performance.
  • A higher-resolution digital system is a complete ecosystem change, not simply a transmitter swap.

Published product examples

3 REFERENCES

Specifications belong to the named product and configuration.

Aura analog VTXRotor Riot (Fat Shark retailer)
Input
7–36 V[2]Manufacturer specified transmitter input.
Mounting
20 × 20 mm, M2[2]Published mounting-hole pattern.
Mass
13 g[2]Listed VTX mass; antenna and installation hardware additional.
Example sources [2][1]
Freestyle V2 VTXDivimath / HDZero
Input
7–25 V[3]VTX-only published range.
Mass
22.3 g[3]VTX only, not complete kit.
Power consumption
6–15 W[3]Published range; particular video/RF operating conditions not specified in the table.
Example sources [3][4]
O4 Air Unit ProDJI
Input
7.4–26.4 V[5]Pro variant only; standard O4 has a different rating.
Mass
15.6 g without camera; 32 g with camera[5]Manufacturer Air Unit Pro assembly definitions; antennas separately listed.
Module size
33.5 × 33.5 × 13 mm[5]Transmission module only; excludes camera and antenna envelope.
Example sources [5][6]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

  1. Brave F7 product information Rotor Riot · Publication date not stated

    Explicit US production claim for Brave F7 and Orlando production-line location.

    Accessed 2026-09-10
  2. Fat Shark Aura VTX for analog video Rotor Riot · Publication date not stated

    Analog VTX input, mount and mass; US retail listing, not US manufacture proof.

    Accessed 2026-09-11
  3. HDZero Freestyle V2 kit Divimath / HDZero · Publication date not stated

    Freestyle V2 VTX-only specifications and kit contents.

    Accessed 2026-09-11
  4. About Divimath Divimath · Publication date not stated

    Company states US ownership and product manufacturing in Thailand.

    Accessed 2026-09-11
  5. DJI O4 Air Unit specifications DJI · Publication date not stated

    O4 Pro voltage, module mass and dimensions; distinguish standard O4.

    Accessed 2026-09-11
  6. About DJI DJI · Publication date not stated

    Headquarters in Shenzhen; not product-specific factory origin.

    Accessed 2026-09-11