Active directional UHF antenna with integrated amplifier for improved wireless signal reception.
Experience improved wireless reception with the UA874. This UHF antenna uses a log periodic dipole array to produce a cardioid pattern toward the desired coverage area, achieving greater rejection of RF signals outside the area than standard ½ wave omnidirectional antennas.
An integrated amplifier with four gain settings compensates for varying degrees of coaxial cable signal loss.
The UA874 can be stand-mounted, suspended from the ceiling, or wall-mounted using the included swivel adapter bracket.
Compatible with all Shure wireless receivers and antenna distribution systems that provide 12 V DC bias
Four-position gain selector switch
Low-noise signal amplifier that compensates for transmission loss in coaxial cable
Integrated threaded adapter that mounts easily to microphones stands
Legendary Shure build quality and reliability
Connector Type
BNC, Female
Impedance
50 Ohm
Power Requirements
10 to 15 V DC bias from coaxial connection, 75 mA
RF Frequency Range
470–698 MHz
Reception Pattern 3 dB Beam Width
70 degrees
Third-order Overload Intercept Point (OIP3)
>30 dBm
Antenna Gain On Axis
7.5dBi
Signal Gain ±1 dB, Switchable
+12 dB, +6 dB, 0 dB, -6 dB
RF Overload LED Threshold
-5 dBm, RF overload LED does not operate for passive gain settings
