I am facing issue in an IBS site where same feeder line is being used for 2 different operators.
one is operating on 900 and other is on 1800 band. 900 band is using Nokia & 1800 band is using Ericsson equipment.
Problem is that 900 is having poor RX level (-90) whereas 1800 is having good RX level (-56).
what can be the possible cause while there is no alarm in Nokia BTS.