we had a case with high sdcch drop in a cell. The hoping type was BBH. We changed to Non Hoping in order to check which TRX is mostly interfered. According to KPIs there is no interference. But, with the Non Hoping activated sdcch drop was decreased and quality improved. Any idea, what could cause the increase of sdcch drop with BBH and improvement (decreasing) of sdcch drop with NH? Changing TRXs didn’t help, vendor is ALU.