starts manual measurement of SPL values for the current channel. Refer to
Making Measurements
for details.
Use
to record an SPL value at the current generator frequency. Used during
manual measurement, refer to
Making Measurements
for details.
Starts automatic measurement of SPL values for the current channel over
the frequency range defined by the Start and End controls, taking readings
at intervals defined by the Step control. Refer to
Making Measurements
for details.