.png)
KONGSBERG HiPAP 452 High precision acoustic positioning system
Except for shortage of 6 of the advanced 32 channel Transmitter / Receiver Boards and Software, the HiPAP 452 system configuration is identical to the HiPAP 502.
The HiPAP 452 uses medium-narrow "listening" beams of +/-15° for reception of signals from the transponder(s).