How Much Antenna Separation Do You Need?
Put two radio systems on one tower and the transmitter on one antenna can deafen the receiver on the next. The real question is not distance but isolation, measured in decibels. This guide opens with a worked rooftop example, then explains the three ways co-located antennas interfere, how to turn a receiver's tolerance into a required isolation figure, and how vertical and horizontal separation deliver it. It uses the ITU-R M.2244 formulas, shows why stacking beats side-by-side spacing, and is clear about where the formulas stop being trustworthy and measurement has to take over.
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