Features and Function.
Full interface compatibility with existing, fixed and rotary wing aircraft "wired" intercoms (both analog and digital). To address joint service compatibility, active, internal circuitry matches impedance and audio levels for different platforms and their variants (e.g. H-46, H-53, and H-60, C-130, C-5B, C-141, E-2C, UH-1.
Full compatibility of crew members wireless ICS unit with SPH-4B, HGU-55/P, HGU-84/5P and other "milspec" headsets/helmets with low impedance microphones and speakers including ANR-equipped headsets.
Lightweight crewman's wireless ICS unit is fully compatible with tactical ensembles and N-B-C protective ensembles.
Interface to aircraft requires no airframe modifications. Communications hardware (Aircraft Interface Unit [AIU] is not platform specific. AIU interconnect cables to aircraft ICS and +28V are platform specific.
500' + operating range (wireless crewman-to-aircraft interface unit (AIU), AIU-to-wireless crewman) with AIU positioned in the aircraft (0.1W RF output/50O). Operating range with AIU repeater in open terrain is approximately 2000'.
Operational compatibility has been validated with air and surface search radar systems: SPS 48; SPS 49; SPS 64, SPS 67 and SPY-1D.
2.400-2.483GHz configuration: Spread spectrum, direct sequence, time division multiple access (TDMA). Supports six, 6-member crews operating simultaneously, in a tight 1000' circle.
User selectable "hot mic", push-to-talk operation. VOX option available.
Power for the AIU/AIC-xx interface can be taken from aircraft or APU-supplied +28V (<0.5A); spike protection to 600V is provided. Accommodation for single-use batteries for emergency power is provided. Rechargeable, sealed lead acid, batteries are available.
Plug-in module battery pacs for crewmen's wireless ICS unit (8, single-use, AA, alkaline batteries, or NiMH rechargeable).
Battery pac duty cycle (when interfaced to low impedance speakers/microphone):