In many senses wireless microphones are a very simple and common technology that are widely adopted because of the convenience that they provide. The considerably simply life for event managers and performers/presenter by eliminating troublesome wires on stage or in a conference room and providing greater freedom for movement.
But not all wireless microphones are the same, and this article from Shure brings you up to speed with many of the basics that we need to understand about different types of wireless microphones, where they are most useful and how they need to be placed. This has a considerable impact on sound clarity and therefore deserves our attention.
Some useful ideas for receiver and antenna placement are provided as follows:
“Place the receiver properly: Receivers are not only subject to interference from external sources that use radio frequencies. Where possible, keep receivers also a few feet (or rack spaces) away from CD/ DAT/ MD players, PCs/ notebooks and special-effect units.”
“Position antennas properly: Ideally, antennas should be positioned above an audience or other obstructions so that the transmitter and receiver can “see“ one another. When receivers are mounted in a rack, antennas must be located on the front panel or allowed to project through the top of the rack. With diversity receivers the antennas should be oriented at a 45-degree angle to maximize the distance between the tips.”