We consider working with the Herelink for our drone. We had some issue with previous remote controller with CE compliance so we did some tests with the Herelink to make sure we pass.
The power of the communication seems to change automatically according of the quality of the signal. So the CE tests pass when RC and the air unit are paired. The issue we have is when the air unit does not detect the RC and is transmitting at full power.
It is mandatory that the air unit also pass when no RC is connected as the drone can be powered without the RC to be ON (as all drone I guess)
We try to reduce the power with a command found on internet but is not changing anything:
I think I was trying to change the parameter on the air unit as it is this one I needed to reduced. But it appears you need to change the value on the paired RC to apply the change on the air unit