AKG Acoustics GmbH

PT 81







  • Interchangeable microphone elements for high flexibility
  • Intelligent battery management system computes residual capacity
  • Security covers prevent unintentional readjustment of controls
  • 15 selectable frequencies

The WMS 81 wireless system is a multichannel system that allow you to use up to 24 channels simultaneously. The modular system architecture provides for custom solutions for every conceivable application.
The WMS 81 operates in the UHF range. SAW filters and 15 selectable frequencies ensure interference-free operation. An intelligent battery management system monitors the transmitter battery voltage and computes residual capacity. A pilot tone system transmits battery data to the receiver to control the Tone Code Squelch and Automuting functions.

Available microphones for PT 81: C 411 L, C 416 L, C 417 L, C 419 L, C 420 L, C 444 L, C 477 WR L, CK 55 L, CK 77 WR L, D 409 L, LM 3 L

© 2012 AKG Acoustics GmbH


Carrier frequency range710-865 MHz
Audio bandwidth50 to 20,000 Hz
THDtyp. <0,8 %
Signal/noise ratiotyp. >108 db(A)
ModulationFM
Selectable channels16
Max. channels for multichannel operation24
RF output power10 mW (ERP)
Battery life8 hours (2 x 1.5 V AA size batteries)
Dimensions92 x 65 x 20 mm / 3.6 x 2.6 x 0.8 in.
Net weight76 g / 1.6 oz.