Very good Richard. If I had a prize, you'd get it. (:-(


"Richard Harrison" wrote in message
...
Steve Nosko wrote:
"How come voltage dB and power dB are different?"

They aren`t.

10log(power ratio) = 20log(voltage ratio)

They are equal because power is proportional to voltage squared. To
square with a logarithm, you multiply by (2).

Best regards, Richard Harrison, KB5WZI