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Weak or worn-out transmitter batteries are a common cause of wireless problems, including complete failure, poor range, distorted audio and more susceptible to interference.
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Always use fresh, new and high-quality alkaline batteries as they provide longer battery life than the normal cheaper types. Cheaper and weak batteries have much shorter life.
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Signal strength and operating range tend to drop off as the battery dies, so it’s generally best to change your batteries at the beginning of every show / service, even if they aren’t completely dead.
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For optimum reception, line-of-sight (clear of obstacles in between) should be maintained between the receivers antennas and the transmitters.
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For optimum reception, reduce the distance between receivers and transmitters.
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For optimum reception, install receivers as high and away from the floors for improved reception.
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For optimum reception, select True Diversity receivers over antenna diversity or non-diversity receivers for best operating range and reduced dropouts.
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For optimum reception, tightly fastened and orient receiver antennas to approx. 45 degree.
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Install receivers and antennas away from potential known interference sources such as metal objects, digital equipment, lighting systems, dimmers, computers & vehicles, electrical power equipment.
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If the transmissions are unreliable within the usual operating range, check to see for potential interference or intermodulation sources.
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Any source of RF energy may interfere with the normal functioning of implanted cardiac pacemakers or AICD devices.
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A body-pack transmitter should not be worn where it is immediately adjacent to such a medical device. Note also that any medical-device disruption will cease when the RF transmitting source is turned off.
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Do not cover the handheld transmitter antenna with hand & ascertain bodypack with an external antenna isn't wadded up or bent when wearing it. Operating range will be limited and frequent signal dropouts as it severely impairs its transmission.
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Use MIPRO factory pre-coordinated frequencies in setting up multiple wireless systems to avoid interference with each other. Consult a wireless expert if you would like to mix systems from different brands or different series.
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Do not mix receivers and transmitters with other brands and series. Use identical receiver and transmitter brands and series.
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High squelch setting reduces operating range. If interference problems require a high squelch setting, eliminate the interference or change frequency to avoid the range loss.
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Check the squelch control setting on the receiver. A higher squelch setting provides better protection against interference but reduces operating range. Set the control to the lowest position that reliably mutes the interference.
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To reduce feedback, place wireless microphones and speakers far apart.
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To reduce feedback, place the speakers toward the audience and away from the stage.
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To reduce feedback, place each wireless mic as close as you can to the mouth (close miking)
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To reduce feedback, place installed wireless microphone behind the speakers.
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To reduce feedback, turn down unused microphones and minimized mics.
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To reduce feedback, use a line array or column speaker overhead as it projects much less sound onto the stage than a conventional speaker.
