3 ms·
Yes, in many fields there is an implicit reference measure that is never mentioned. In radio at least people write dBm to make it clear that it's relative to on
by TorKlingberg 10y ago
Yes, in many fields there is an implicit reference measure that is never mentioned. In radio at least people write dBm to make it clear that it's relative to one milliwatt. But gains and attenuations are just dB, because the reference is irrelevant for a difference between two dB values with the same reference.
- ajross 10y ago> But gains and attenuations are just dB, Which is correct, because a gain is inherently unitless. It's a multiplier on an input signal strength. Likewise a signal/noise ratio is typically expressed as a pure dB measure. There are no units.