This point ends up about two-thirds of the way across the scale. Typical VU meter. Source: Hoyt Meter The scale to the left of the zero point is generally in black, with a value of -20 dB all the ...

The diagram below shows a VU meter with a decibel scale from -20 to +3 dB, and a linear percentage of modulation scale from 0 to 100% below it. A meter which is linear in decibels (rather than ...

A VU meter registers zero level on its scale when the voltage = 0.775 at 1 milliwatt & 600 ohms impedance. This is usually modified so that 0 (zero) corresponds to 1.23 volts or + 4 dbm. The ballistic ...