
44
4. The amplitude scale (
C
) is initially set to 10 dB. As the curves approach each other,
it is recommended to downscale first to 1 dB, and finally to 0.1 dB:
C
B
A
5. When the signals have stabilized (
A
), click
STOP
(
B
). Then, a new window opens
and the software switches off the pistonphone (pistonphone LED red) and starts
measuring the open-circuit sensitivity by the insert voltage method.
Note:
The scale (
C
) is set to 0.1 dB.
6. When the signals have stabilized, click
OK
and the sensitivity test is finished. Now
in the main window, the open-circuit sensitivity will be displayed and an indica-
tor will be green if the sensitivity is verified as OK compared to the microphone
definitions.