HM30 FAQ

1. What is HM30?

   A long-range full HD FPV system with remote control, telemetry, and OSD built-in.

2. What frequency bands do HM30 use?

   5100 to 5825 MHz, centering at 5550 MHz.

3. Can I replace the antennas on HM30?
   Yes, of course.
   Both the ground unit and the air unit are using SMA connectors for antenna installation.

   SIYI original antennas are:
   4 x Omni Antennas (2 for ground, 2 for air)
   2 x Directional Antennas (for ground)

   SIYI sold-alone antenna choices are:
   17 dB High Gain Antenna
   Lollipop Antenna

4. How much transmitting power in HM30?
   Around 25 dBm / 320 mW

5. What is the effective range?
   The latest record is 50 km.
   With different antenna setup and in different wireless mode, the range limit is different.
   26 KM Range Test Full Video - SIYI HM30 Full HD Image Transmission System
   Amazing Record 42 KM Range Test Full Video - SIYI HM30

6. What flight controllers are compatible with HM30?
   To use the OSD overlay, the flight controllers should support Mavlink output, such as
   Ardupilot, PX4, INAV, etc.
   If the OSD overlay is not necessary, then any flight controllers are compatible.

7. What remote controllers are compatible with HM30?
   Any remote controllers which support S.Bus or PPM output.

8. What interfaces to output video stream on HM30 ground unit?
   USB-C
   LAN (UDP telemetry simultaneously)
   Internal WiFi (UDP telemetry simultaneously)
   USB WiFi (UDP telemetry simultaneously)

9. Does HM30 ground unit support HDMI output?
   Yes but with a sold-alone LAN-HDMI Output Converter Module.

10. Does HM30 air unit support HDMI input?
    Yes but with a sold-alone HDMI-Ethernet Input Converter Module.

11. What are the dimensions and the weight of the HM30 unit and the FPV camera?
    Air Unit
    Dimension: 70x55x24 mm (antenna detached, fan height included)
    Weight: 74 g (antenna detached)

    FPV Camera
    Dimension: 42x42x25 mm
    Weight: 23 g

12. What kind of models are the most suitable for HM30?
    FPV wings and multirotors