corgan4321
Well-known member
I'm working on a Space Echo RE201 and wondering about converting dBm values to dBV values. The original service manual says to feed a -50dBm signal into the mic input. How would I convert this number into dBV or RMS voltage for measuring on my multimeter? I understand that in converting from dBm the impedance is required, but which impedance do you plug into the formula? What impedance value would I use to do the conversion? I have the same question in regards to measuring the output level too.