If interference problems are likely or there will be many wireless systems present, more sophisticated wireless systems might be necessary. Use diversity systems unless the range is short, the area is uncrowded and the situation is straightforward. Check to make certain that all necessary supplies and accessories are on hand, such as extra batteries, special microphones, audio cables, power strips, a spare microphone, remote antennas, RF cables, etc. If using only one wireless system, make certain that its frequency is appropriate to avoid the TV channels operating in the area. If several wireless systems will be used, special precautions and procedures might be necessary.
Prevention is, by far, the best solution to interference problems.
Review Quick Tips - Avoiding Interference for tips and suggestions. If there is any doubt about the condition of a battery, replace it. Use only high-quality alkaline batteries and make certain that used batteries are never mixed with new ones. Take special effort to adjust audio levels properly, otherwise there is an increased risk of audio problems. See Quick Tips - Setting Up Wireless Systems for details.