Herelink air unit to air unit connection problem

Hi all,

I’m trying to use herelink AirUnits to replace current DDL that’s offered by Microhard and other brands out there for quadcopter drone.

The plan is to use two AirUnits (one in the UAV side and the other is in the GCS side which is PC tablet) using QGC.

I tried to follow the airunit to airunit instructions but failed to establish a connection in QGC.

I also tried to update the units using the PC but the flasher APP didn’t detect the radios.

I see the lack In documentation info is the following areas:

  1. It is not clear what IP address should be used since the document instructed to set the PC side to 192.168.144.3 and a subnet. But in one article I found I saw you asking to set it up to 192.168.144.50!

  2. The QGC side is not mentioned what set it up required other than setting up the “video setting” with certain IP address. What about how to connect the vehicle to QGC how that should be set? Is it by setting up a communication link in Comms link page? If so what should be the setup? Is there an IP address to be used for drone side & base side like all DDL out there?

In Microhard it requires an IP address & a port number to work and I noticed in your documents it also show the same for mission planner but not QGC!

Can any one kindly support please what should the QGC connection be? and how to update the air units if I’m using the PC (no herelink RC).

Thanks

We planned to purchase 200 herelink air units based on general info stated in the documents that it can be used as GCS to UAV link . I can’t imagine what would the situation be if that purchase is made and we get stuck as we are now.

Hey there @Yaz
To connect HereLink AirUnits with QGC, set the PC’s IP to 192.168.144.3 and the UAV’s to 192.168.144.10. In QGC, create a new UDP connection with the UAV’s IP and port 14550. For updates, connect both AirUnits to your PC via USB and use the HereLink flasher tool. Set the UAV’s IP in QGC’s video settings. If you need more help, check HereLink documentation or support.

Hi @miaco ,

Thank you for your great reply it worked very well but I noticed an important thing that I hope there is a solution to improve it. The telemetry data is a bit slow I noticed when moving drone by hand to verify compass & heading is working I noticed the data update is glitching and having a very high latency. So when I move the drone left it takes more than half a second to reflect on the compass or heading display in QGC. In contrary other DDL is instant.

Any explanation or a way to improve it please?

Regards

Yaz

Hi @miaco

With herelink The Mavlink loss rate is between 60% to 70% not sure what that means and how I can fix it!

It might be what causes the lag in telemetry data update.