[Arny Krueger]

"Dick Pierce" wrote in message

Scott Dorsey wrote:
I don't know, because I have never seen actual
instantaneous RMS values ever displayed anywhere.

The term "instantaneous RMS value" is itself meaningless.

Right, because RMS has to be averaged over an interval.

Instantaneous peak values can be meaningful, but in the digital domain they
aren't really instantaneous. They correpond to a sample interval.

As a practical matter, some measuring tools allow the measurement interval
can be set to be within a useful range that corresponds to something of
interest to the user.