FAQ ~ Wireless Microphone Systems

A wireless system consists of three components: transmitter, receiver and mic. Wireless system allows performers and presenters to move freely on stage, without the restriction of a wired microphone with its long tangling cable. The wireless system is not a complete sound system as it replaces a wired microphone only.

Improper receiver antenna placement. Maintain line-of-sight (clear of obstacles in between) and place receiver near the stage and away from metals and electrical and digital equipment. Place the receiver at least 1 meter up from the floor and as high as possible for optimal reception. Interference and multipath also cause dropouts. Absorption by the audience and the stage muscians will attenuate any transmitted signal and possible dropouts, too.

Select a "true diversity" technology instead of antenna diversity & non-diversity. True diversity has the best reception quality, RF reliability and improves performance by reducing or eliminating dropouts. Notice not all true diversity systems are design equal as some will have longer operating range. Dropouts are common in non-diversity receivers and therefore, not recommended.

Select fixed-frequency receiver if it will be used in fixed installed location with short and limited-range operation and budget is of a concern. Frequency-agile receiver offers more advantages: the ability to change channels easily if interference occurs, TV station or other nearby wireless systems. More importantly, the needs to move to different venues and cities and pre-coordinated frequencies set-up of large, multiple wireless systems.

No. You cannot have two mics (transmitters) transmitting on the same frequency at the same time as receiver can only demodulate the signal from one active transmitter at a time. Otherwise, the receiver will pick up noise from the battle of the signals. Only one wireless microphone/transmitter can be used with a single-channel receiver. The other microphone/transmitter needs to be powered off.