I just turned up a Nokia BTS in the 1900 MHz GSM/UMTS site near the local airport and have seen some interference issues coming off of this sector. The UL Qual is quite poor even with a GMA installed. Has anyone come across a similar situation near air terminals?
Thanks for the feedback Pix. I think you may be on to something. There are about six sectors within proximity to this area. Recently I turned down several radios on an adjacent site and saw about a 1.5% reduction in DCR for the affected site. The BCCHs, BSIC, and HSN are all different for the sectors but it looks like there may be some collisions. Should I adjust the MAIO settings to avoid hopping collisions as a start?