I'm a newbie with PicoScope 6 and I've not yet understood how to obtain a dBu measurement from a signal.
I use PicoScope 220.127.116.11 with a 3205 hardware.
I create a custom math channel with the formula 20*log(A/0.775), I add the measurement to my scope (True RMS - Whole trace), but I have no signal! What's going wrong?
Please help me!