Does anyone know the logic of the values displayed as Telemetry RSSI in QGroundControl?
The Local and Remote rssi shows up as negative values (say -1 or so) whereas in RFD Modem Tools software, the values are displayed in the range of 240 if the air and ground module are close to each other. I can use the latter values to calculate the estimated range for a given telemetry configuration. But I cannot access the RFD Modem tool software if I am accessing the com port through QGroundControl.
It is very normal to see negative value. Best signal strength ever should not surpass 0
I think that positive value of signal strength can not exist. Maybe what you see in the software is either a bug, or the real values are passed into a mathematical function for some reason.
I had found the range calculation formula before but I did not connect this formula to the RFD modem tools value until now.
btw does any one know how to measure/access the rate at which the RX errors increase? I am asking this because the value reported is a cumulative value rather than an instantaneous value.