30KM 1080p 60fps 150ms - SIYI HM30 Full HD Digital Video Link Telemetry Radio System

I think the DJI is totally different system so there will not be possibility to connect it to SIYI remotes.

Not for the remote, all i need, and it says in the manual it is available, is video out on type c conector.

Have you tested if it works with your Goggles?

The reason why the Type-C output is not working in all Android smartphone is that the IP addresses in those phones are different. Your Goggles can be a different situation.

Oh ! So it may work for the goggles then! Thanks. I havent received the goggles yet.
The plan iz dji air unit 03 for short range and switch to the siyi hm30 for long range with dragonlink control.

My main issue is switching the dji system off while changing to the hm30.

Its all on a lithium ion powered skyhunter 1800.

I will let you know if it works when i get them in.

I can confirm the hdmi convertor works with the spexman o2 goggles very well.

If anyone cares about these ancient goggles

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Hello Frank,

Please send an email to support@siyi.biz regarding this issue, thanks

Hello Frank
I don’t understand.
You are support@siyi.biz.
The A2 is bricked, there is only one way to communicate with the A2 and that is the SIYI FPV app. Eg OTA.
Can you make the USB port on the air unit connect to the A2 and use SIYI PC Assistant. Rather than OTA VIA THE App

Does the A2 have a debug plug

As you see there is no open discussion here for A2 mini and we do not plan to start one for this model. Please send an email to support@siyi.biz to discuss.

Even me is not 24/7 for any kinds of issues.

I can tell you I’m using full UDP with the daily version of QGroundControl with no issues. Both Video and Telemetry are coming over my LAN connection. Can you help with how you have it setup? What is your Static IP set to? Do you have a router between? I used it daily for a solid 2 months with no issues after working out the intial setup problems.

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I have been able to get UDP to work on Qgroundcontrol. What sort of issues are you seeing?

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Hi Jeff,

I was simply unable to get mission planner or q ground control to connect via udp. Video was fine.

Connecting direct into laptop without router or switch.

The documentation is a little ambiguous. Are you able to share what fixed ip you have given your LAN interface? Also what ip and port number you are connecting to with UDP. I will try again tomorow.

The PC that is connected to the “LAN” port on the Ground Unit HAS to have an static IP of 192.168.144.20 and the gateway HAS to be set to 192.168.144.12. The Air Unit ONLY sends UDP traffic to 192.168.144.20. If you don’t have that IP set you will not receive the mavlink UDP traffic. The video working has nothing to do with this but does at least show that traffic is passing over your radio link. (Because the video is RTSP, the ground station is actually requesting the video vs the Mavlink UDP which is being sent from the Air Unit all the time regardless of the ground unit state)

You have to kind of think of this network like 2 seperate networks with a gateway between them.

If you need the mavlink telemetry to go to multiple locations- you will have to setup a Mavlink forwarder from inside Qgroundcontrol. Otherwise you would have to use a Mavlink Router.

Edit: The only thing I can think of that might be different- if this doesn’t work for you- is that I have a router between my Ground Unit and my PC so that I can use my own WIFI and not be tethered to the ground unit. That might be why mine is working if you have tried the above.

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Video OK Jeff, no telemetry at all. Settings as in manual.
I see the data coming in with Wireshark.

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Hi Jeff,

Thank you for confirming those settings. I am using exactly the same settings.

I get an initial connection with mission planner/QGC but it gets stuck downloading parameters as before. We see this with other telem systems where there is a high packet loss or slow data-rate.

Interesting that you are getting this to work with a router in the loop -

Have you done any port forwarding or specific config in your router? I just tried it with a router and get the same issue.

Hi to all!
I did manage to install the SIYI app and seem to have managed to connect my Android phone to the receiver / transmitter.
Yet I have a stupid issue which blocks me :


Hase anyone seen this before ?

I’ll try QGC in the meantime.
Best to all

Hi again
I managed to install QGC and find the HM30 via bluetooth but then no connections sets up.
I feel a liitle bit dumb :slightly_smiling_face:
Thanks for your help

Go to Android settings then apps then siyi FPV app then set the permissions

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Thanks a lot ! I managed to stop this pop up thanks to your support!

Now I am connected, and managed to enter the proper camera adress… but it says it is disconnected… and I have no image…