Type 41AM

Type 41AM
Outdoor Microphone, 0º Type 41AM
An outdoor microphone unit for permanent outdoor installations, for example in airport noise monitoring systems. The unit has a built-in A-weighting network, a ± 20 dB amplifier, and an electrostatic actuator for a complete check of system functionality. This unit is type approved by PTB as part of a monitoring system for type 1 Sound Level Measurements.
This unit is fitted with a special ½" microphone for measurements at 0º incidence. This microphone (the Type 41AS) is optimised for use with its windscreen and rain protection.
See also Type 41AL for a low-cost alternative to permanent outdoor installations.
Specifications Type 41AM
Specifications Type 41AM
50 mV/Pa (unified)
Dynamic range:
20 - 136 dB re. 20µPa
Frequency response:
Type 0 for both: IEC 60651 and ANSI S1.4-1983
Power supply:
12 - 18 VDC
Cal. level of electro-static actuator:
90 dB at 1000 Hz
Output connector:
6-pin LEMO
Pole adapter:
50 mm (1.97'') G 1½'' (ISO 228/1)
Reference direction:
0° (vertical for airport noise)
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