Dear Sir,
We have one IBS site here we have airtel,Vodafone,aircel,bsnl & tata cdma & gsm, this is combinations of passive & active, here also I am facing high ICM issues with airtel, we checked all cables & connectors but we are not found any issues in these accessories. for tata cdma we used band pass filter but after filter also we are facing same issues when tata cdma we connect to DAS that time airtel ICM goes to high(for all fz combining purpose we used POI also),pls give me your valuable suggestion.