to solve Rx path diversity alarms of rx path imbalance in 1800 after reading d IDB n CHECK d system monitor 2 read d alarm next 2 do is check d connection from each sector of d DRU i.e A,B,C,D to D hybrid combiner @times though d radio on OMT will tell u is A/C N B/D but d correct connection is of d sectors 2 d combiner is A/B n C/D so which means u ‘r going 2 swapp cable n change one of d jumper dat u notice is not functioning well b4 u do a reset on d cabinet.