The document discusses external interference affecting microwave links in Bangladesh. It provides data showing up to 37.7% yearly outage trends for some links. The 7-8 GHz frequency bands were most affected, with specific links named. Case studies describe interference locations, frequencies used, and receive signal levels both with and without interference. Using the same frequency at unknown neighboring links can cause issues like threshold degradation, errors, and downtime, hampering quality and growth for both operators. Coordination is needed to reuse frequencies without interference and maintain network objectives.