SIYI MK15 Air Unit | MK32 HM30 Air Unit Video Receiver
Brand: SIYI. Introducing the SIYI video receiver unit lineup — MK32 / HM30 and MK15 Air Unit, which provide stable video signal transmission for FPV drones and industrial platforms. These modules combine compactness, a wide range of interfaces, and flexible power options, making them suitable for both amateur builds and professional solutions.
Key Advantages
- Supports up to 16 S.BUS channels and 5 PWM channels for advanced control schemes.
- Advanced interfaces: 3-pin SBUS, Datalink via UART (4-pin), 6-pin connectors for PWM channels, 8-pin Ethernet for video input, and Type-C for firmware updates.
- Compact dimensions of 70 x 55 x 16 mm (without antenna, with fan) — convenient for integration into drone chassis.
- Flexible power options: from 11 V to 58.8 V depending on the model, allowing operation with various battery configurations.
Detailed Technical Specifications
| Specifications | MK32 / HM30 Air Unit | MK15 Air Unit |
|---|---|---|
| Output Signal | 16 S.BUS channels, 5 PWM channels | 16 S.BUS channels, 5 PWM channels |
| Interface and Ports | ||
| – SBUS | 3-pin | 3-pin |
| – Datalink (to FC) | UART 4-pin | UART 4-pin |
| – PWM Channel 1 to 5 | 6-pin | 6-pin |
| – Video Input | Ethernet 8-pin | Ethernet 8-pin |
| – Firmware Update | Type-C | Type-C |
| Dimensions (without antenna, with fan) | 70 x 55 x 16 mm | 70 x 55 x 16 mm |
| Weight (without antenna) | 74 g | 100 g |
| Antenna Gain (standard omni) | 5 dBi | 5 dBi |
| Power Input | 11 to 16.8 V (expandable to 4S to 18S with BEC) | 14.8 to 58.8 V (4S to 14S) |
| Operating Temperature | -10 to 50°C | -10 to 55°C |
SIYI Air Unit modules provide full-featured integration with flight controllers: the 3-pin SBUS receives commands, UART (Datalink) transmits telemetry and other data between units, and separate 6-pin connectors are used for connecting PWM channels 1–5. For video signal transmission, a reliable 8-pin Ethernet connector is used, ensuring stable video stream quality during flight. Firmware updates are performed via a convenient Type-C port.
The dimensions of both units are 70 x 55 x 16 mm (without antenna, with fan), allowing for compact placement of the modules in various size frames. Weight without antenna: MK32 / HM30 — 74 g, MK15 — 100 g. Standard omni-antennas have a gain of 5 dBi, providing a good balance between coverage and compactness.
Regarding power, the MK32 / HM30 operates in the 11–16.8 V range with an option to expand to 18S via BEC, while the MK15 supports a wider range of 14.8–58.8 V (4S–14S), making it compatible with more powerful battery configurations. The operating temperature range allows the MK32 / HM30 to operate from -10 to 50°C, and the MK15 — from -10 to 55°C, ensuring reliable operation in various climatic conditions.
These SIYI Air Units are suitable for FPV enthusiasts, operators, engineers, and anyone building or upgrading quadcopters and requiring reliable video communication with multi-channel control support. Thanks to a wide range of interfaces and stable technical characteristics, the modules are easily integrated into various systems and ensure long-term operation.
Product type: Drones & Quadcopters > Drone Components > Drone Spare Parts > Transmitters
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