Power signal interference

Hi


I have a problem with my pedals.
I am now training on an Elite Tuo trainer. Some time ago I wanted to compare the power readings from the Rally 100 and from the trainer. But I can't, I don't know why, but the signal from the pedals hides the signal from the trainer. And this is on all my devices (e.g. edge 830, laptop with zwift or garmin watch).
I'm 100% sure of this because I kept the pedals on the desk in front of me during the last few workouts. The power from the trainer was displayed on the device. When I woke up the pedals, the power display was 0 (not surprising, after all the pedals were lying still on the desk).

This is very strange as I have the same scheme on all the devices. Even stranger is that the same thing happens even when the power sensor (pedal) is removed from the device. And theoretically it should not be possible to connect the pedal to the device. I've tried mixing ANT+ and Bluetooth signals, but always the power signal from the pedal is "STRONGER".

Maybe someone can help me because I have no idea how to solve this problem.