Pettersson M500-384 USB Ultrasound Microphone
Changing the microphone directionality
The M500-384 comes with a detachable directional horn. In order to obtain a more directional microphone characteristic as
well as a higher on-axis sensitivity, the directional horn should be used. To remove the horn, pull the horn straight away
from the microphone tip. When the horn is put back on the microphone tip, please hold the horn at the edge while pressing it
onto the tip. This avoids increasing the air pressure over the microphone port, which might occur if the horn opening is
closed e.g. with a finger.
Weather protection
The M500-384 is not waterproof and should be protected against the elements if used e.g. under humid conditions. The
housing and circuit board are relatively insensitive to humidity, but the microphone element and USB connector may require
protection.
M500-384 Specifications
Microphone:
Electret
Sampling frequency:
384 kHz
ADC resolution:
16 bits
Interface:
USB 2.0, full speed
Anti-aliasing filter:
8th order, 160 kHz
Size:
43 x 114 x 13 mm (incl microphone horn)
Weight:
60 g
Power:
USB bus powered (5 V, 200 mA max)
Pettersson Elektronik AB, Uppsala Science Park, 75183 Uppsala, Sweden
