The LUN1792 unit converts analog signals of vertical deviation, lateral deviation and signals of vertical and lateral deviation validity from main output of GNS 430W unit to format suitable for Russian navigation indicator NPP 1485MK or similar.
OBS is selected on GNS 430 unit only. For detailed OBS function description see „Pilot’s Guide & Reference“.To use OBS selection on NPP, you need to use LUN1794.3
Unit is powered by 28 V DC. Supply voltage should be within the range min. 16 V DC, max. 32 V DC. Recommended value of protection device (fuse or circuit breaker) is 2 Amps. Device is designed to be supplied from aircaft electrical system in accordance with MIL-STD-704E. Unit is powered and all signals are connected via connector series MIL-C-38999, type MS27508E14, 37 pins.