Settings for multi-vehicle setup with RFD radios

[Sid2722]

Hey Ardupilot Community,
I am in a similar situation, and facing issue in spawning multiple vehicles in Mission Planner Software, and getting no heartbeat.

I have configured a network of 4 nodes, one set as Master and 3 are Slaves,
The Green Status LEDs on all the nodes are solid, and red lights are blinking, i have verified the status using RXI9 command, and all the three nodes are connected with master node.
I have set “SYSID_THISMAV” aswell, but still unable to get heartbeat and parameters in Mission Planner.
I am facing issue with spawning UAVs in Mission Planner, i have a couple of questions to ask,

1. Do i need to setup one node as a GCS, as i am currently using Master node with my laptop as a GCS node to connect with Drones.
   I am attaching screenshots for kind consideration.
   Thanks in advance

[xfacta (Shawn)]

This may not be related, but I would have a ground wire from the modem to serial port along with those two data wires.

Did the master/GCS ever communicate with any of the node modems before you changed them over to multi-point?

All I can think of is there’s a problem with the S24 and S25 values - revisit the manual and page 12 - sorry if you’ve been over it a thousand times

125kbps Airspeed Networks
Single network (Maximum 7 non-master nodes)

[Sid2722]

Thanks @xfacta for responding to my query,

Regarding your concern on connection, the telemetry was working fine in point to point network with the same wire.

[amilcarlucas]

It might have been on the edge.

Do what @xfacta said. Proper ground is important and often overlooked by beginers