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Four UA864 or UA870 with a ULXD receiver

Sometimes, in a wireless mic installation it is necessary to combine antennas from multiple rooms, such as shown at: Antenna Distribution - 2 rooms, 4 antennas There was an issue (now resolved) when connecting...


Calculate effective operating area of UA874, UA870 or PA805

This procedure will provide a rough estimate. For this example, assume the directional antenna is 40 feet away from the performance stage, pointed at the stage. The operating area of the antenna can be considered an equilateral t...


Current Draw - UA830, UA870, UA874, UABIAST

UA830 inline antenna amplifier: maximum current draw of 125mA @12Vdc UA870 directional antenna with RF amplifier: maximum current draw of 79mA @12Vdc UA874 directional antenna with RF amplifier: maximum current draw of 60mA @...


Will the Shure UA874 or UA870 antenna work if DC power is not supplied?

An unpowered UA874 (or UA870) antenna is essentially an inoperative device. The UA874 Log Periodic Directional Antenna (LPDA) is designed to receive wireless microphone RF signals. It is a directional wideband antenna and a...


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