Designed for indoor communication systems — fixed station — including police, fire, transportation, restaurant, and industrial applications. Suitable for high noise environments.

Application

Paging/Two-way Radio/Intercom

Microphone Type

Dynamic:

Simple, rugged diaphragm/coil. handles extreme volume levels without distortion.

Polar Pattern

Cardioid:

Picks up the most sound in front of the microphone and some from the sides. Less susceptible to feedback in high volume environments.

Frequency Response

Tailored:

Smooth, extended response. Tuned to accentuate specific types of instruments or voices.

Form Factor

Desktop

Model Line

Other

Downloads
522 User Guide (PDF)
Features
  • Frequency response tailored for voice communications
  • Directional microphone element
  • Switch-selected dual impedance output
  • PTT switch that can be locked “On” for hands-free operation
  • Four conductor, shielded, bare-ended (no connector), straight cable
  • Adjustable height
  • Does not require DC power for operation
Specifications
Type
Dynamic
Frequency Response
60 to 11,000 Hz
Polar Pattern
Cardioid (unidirectional) - uniform with frequency, symmetrical about axis
lmpedance
Dual. Microphone rating impedance is 150 ohms (260 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Switch is in high-impedance position as supplied. To change impedanc