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
10 to 15 V DC bias from coaxial connection, 75 mA
RF Frequency Range
Reception Pattern 3 dB Beam Width
Third-order Overload Intercept Point (OIP3)
Antenna Gain On Axis
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