Pro tip: this only works well if the receiver is in the top rack space, so that the antennas can stick up above the rack to get a clear line of sight to the transmitters. Some wireless systems are shipped with short antenna cables and mounting hardware for this purpose, while for other systems it’s an optional accessory. The right thing to do is to mount the antennas on the front of the rack, using holes that are usually provided in the rack mounting brackets. The closely-spaced antennas on adjacent receivers cause unpredictable reflections inside the rack that can result in poor reception and reduced range.Even if the rack is plastic, the metal devices above and below the receiver can greatly reduce the signal getting to the antennas. If the rack is made of metal, not much signal will get to the antennas because metal blocks radio signals.The sides of the antennas are sensitive but the ends are not, so if they’re pointing at the stage or presentation area they’ll pick up almost no signal at all.Don’t do it! Here’s why this is a bad idea: The Worst Place To Put Wireless Microphone Receiver Antennasīy far, the worst place to mount receiver antennas is horizontally on the back of a receiver that is inside of an equipment rack. Either way, special attention to antenna selection and placement is essential. In many institutional applications, however, the receivers are either permanently mounted in a closet or packaged in a portable equipment rack for use in different rooms. This is fine if the receiver is sitting on a shelf or table so the antennas have a clear line of sight to the transmitter. Most systems include antennas that are designed to mount directly to the back of the receiver. Mistakes involving antennas can easily result in 80% of the signal being lost, which can cause intermittent audio dropouts that make the system virtually unusable. The signal from the transmitter weakens considerably as it travels, so it’s important that the receiving antennas are located so that they can harvest as much of the remaining signal as possible. In this article we’ll talk about what is by far the most overlooked part of a wireless microphone system: the receiving antennas. But selecting and installing new wireless microphones for a small school, church, or theater is something that you can probably do yourself. Wireless is one of the most mysterious and misunderstood parts of audio.
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