SIYI MK32 Enterprise Ground Station - 7" Display, 15KM Range, 4G+64G Android, Dual Operator, Abundant Interface

Dear Ardupilot Community,

After almost two years, we have a new member to SIYI radio controller category.

MK32 Enterprise Handheld Ground Station

  • 7-inch high definition and high brightness monitor display
  • Dual full HD digital image transmission system expandable to 30KM range
  • Top Android build with 4G RAM and 64 ROM
  • Optional dual remote and RC replay feature
  • Abundant interface, poweful expandability

Like MK15 and HM30, MK32 link is Mavlink compatible HD image transmission.
MK32 ground station is compatible with both MK15 and HM30 air unit. It comes with almost all the features that MK15 has and some additional interface.

  • More switches
  • Ethernet output
  • RC input and output
  • Audio input

We believe that MK32 can be widely used for UAV drones, UGV, USV, and robotics.

Technical Specs


Model: MK32
Max Transmission Range: 15 kilometers (unobstructed, free of interference)
Channels: 16 physical channels, 16 communication channels
Datalink Compatible Flight Controllers: Pixhawk / APM based flight controllers or any flight controllers with UART datalink output
Image Transmission Compatible Android GCS:

  • QGroundControl
    Image Transmission Compatible Windows GCS:
  • QGroundControl

Ground Station

Monitor: 7-Inch High Definition and High Brightness LCD Touchscreen
System: Android 9.0 OS, 4G RAM & 64G ROM
Dimension (antenna overlapped): 308 x 148 x 72 mm
Weight: 1440 g
Battery Capacity & Type: 10200 mAh 7.4 V 2S Li-ion, 75.48 Wh
Fast Charging Protocol: PD 30W
Charging Time: 3.5 Hours (30W PD Charging)
Battery Life: 10 hours
Interface & Ports:

  • Video Output: Standard HDMI
  • External Device: USB-A
  • MIC Input: Top Audio Port
  • Charging: Type-C
  • Firmware Upgrade: Type-C
  • File Transfer: Type-C / USB-A
  • 4G Cellular Network: SIM Card Slot
  • External Storage: TF Card Slot / USB-A
  • Communication: LAN (Ethernet)
  • RC Input / Output: Bottom Audio Port
    Waterproof Level: IP4X
    Working Temperature: -10 to 50℃

Air Unit
Signal Output: 16 channels of S.BUS, 5 channels of PWM
Interface & Ports:

  • SBUS: 3-Pin
  • Datalink (to FC): UART 4-Pin
  • PWM Channel 1 to 5: 6-Pin
  • Video Input: Ethernet 8-Pin
  • Firmware Upgrade: Type-C
    Dimensions (antenna excluded, fan included): 70 x 55 x 16 mm
    Weight (antenna excluded): 74 g
    Antenna Gain (standard omni): 5 dBi
    Power Input: 11 to 16.8 V (expandable to 4S to 18S with BEC)
    Working Temperature: -10 to 50℃

Air Unit HDMI Input Converter
(Optional or Packed with HDMI Combo)

Video Input Port: Mini HDMI
Video Output Port: Ethernet
Working Voltage: 12 V
Power Consumption: 3 W

TF Card Recording Resolution: 1080P (1920*1080) @ 30 fps, 720p (1280 x 720) @ 30 fps

Video Storage Bitrate: 12 Mbps

File Storage Format: FAT32
Video Format: H.265
Supported MicroSD Cards: MicroSD Class10, Max 32GB
Working Temperature: -10 to 50℃

Dimensions: 42 x 41 x 11 mm
Weight: 26 g

More details and specs coming soon…

Does this thing have bridge between ground network and air network?

Yes, the ground unit has Ethernet port as bridge

Are you going to update the other radio to have it too? or force customers to this radio?

By MK32, we are offering a new option for customers, of which the “bridge” has been consider in the product design stage.
The MK15 model is going to keep running in parallel.

No need for “Design stage”, having MK15 bridge an ethernet dongle is a one line routing. If you give me root of the MK15 i’ll do it for you :slight_smile:
If you don’t do it is because you don’t want to do it, it is just a very very easy software change. Can even have an option to bridge the MK15 wifi, as said it is only a very very easy software routing mod.

Please we need a video that describes all its functions, so that we can buy it.

what frequency range works? There is no such data anywhere in the product description.

5100 to 5825 MHz
Same with MK15 and HM30 system

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this radio can be charged while in use or needs to be switched off like the mk15?

At this moment, MK32 is still power-off-charging.

That is a big problem, at least this one has a detachable battery, MK15 is a real problem to work all day long. In my opinion Herelink is ages ahead.

Hopefully this MK35 will reach a bit more than the 400 meters i get with MK15.

May I know what kind of works requires all day long, please?

At what altitude do you get not more than 400 meters?

There are a bunch of jobs that take all day, in our case latest is bathymetric work. Not detachable battery that can’t be charged while in use is crazy. Do you know of any cell phone that needs to be switched off to be charged?

At around 30-40 meters all i get is 400 meters on a drone, while on a boat for bathymetric work i hardly get 300 meters at sea level with unobstructed line of sight. In same applications i easily get 2km on the drone and 1km on the boat using Herelink, and it can be charged while in use.

We sold our last unit with the boat yesterday, going herelink only from now on, we will reconsider your products once they will perform better an can be charged while in use.


As I understand, you are using the Air Unit on a USV.

Wireless links over water:
Radiofrequency signals that are propagated over bodies of water are highly susceptible to multipath interference. The water surface, especially if tidal, subject to winds or currents is uneven and extremely reflective leading to the creation of multiple alternate wave fronts and echoes. The temperature interface between air and water can also induce thermal ducting and notable signal loss.

The proximity of the wireless link touch water surface will produce the strongest effects and one of the key strategies for ameliorating water-induced multipath is to raise the endpoints of the wireless link high enough to minimize multipath. If this is not possible, antenna diversity with the erection of secondary parallel links can prove effective. Spatial diversity requirements for wireless links over water need careful assessment and geometric separation to achieve adequate connectivity which is usually planned most effectively by a site survey.

So better to put the antenna’s at least 1m above the waterline

Hope this will help you a bit

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Same place, same everything, Herelink goes 1Km on the boat. Maybe would have gone further but it was a small lake, no more space.
MK15 is for little ponds :slight_smile:

@SIYI does the MK32 send stick input over ip or just sbus?

I am aking because i read this in the specs “Ground RC Input and Output”

So if te radio has 4G it needs to send stick input trough ip in order to use 4G comunication otherwise having 4G is useless.

@SIYI does the MK32 send stick input over ip or just sbus?

I am aking because i read this in the specs “Ground RC Input and Output”

So if te radio has 4G it needs to send stick input trough ip in order to use 4G comunication otherwise having 4G is useless.

If you can share the firmware version and more details about configuration and settings, I don’t think 1 km is a problem in the same environment

We are working on stick input over IP