UA845 UHF Antenna Distribution System

(Discontinued)  Active Antenna/Power Distribution System, Five-Way, Wideband UHF (500-900 MHz), Internal Switching Power Supply. NOT FOR USE WITH ULX.

The Shure Model UA845 is an amplified, UHF Antenna Distribution System that expands a wireless microphone system by splitting one pair of antennas to multiple Shure UR4 or Shure UC4 wireless receivers. It also amplifies RF signals to compensate for insertion loss due to splitting signal power to mulitple output connectors. Each UA845 allows up to four receivers to use the same antennas. CASCADE connectors allows connections to a fifth receiver or a second UA845. There are also power connectors for powering Shure UHF and UC Wireless systems.  NOT FOR USE WITH ULX.  See UA845-SWB.

UHF Carrier Frequency Range

UA845-UA .................................................................782–806 MHz
UA845-UB .................................................................692–716 MHz
UA845-MA.................................................................782–810 MHz
UA845-MB.................................................................800–830 MHz
UA845-KK .................................................................838–862 MHz
UA845-MC.................................................................774–782 MHz
UA845 US (discontinued).............................................500–900 MHz
UA845 UK .................................................................500–900 MHz
UA845 E ...................................................................500–900 MHz
UA845-SWB............................................................... 470-952 MHz *

* Available in U.S.

Distributed Output Level (Gain)

Models UA845-UA, UB, MA, MB, KK, MC:

3.5 dB typical, 2.0 dB to 5.0 dB from antenna input (Output ports 1–4)

0.5 dB typical, –1.0 dB to 2.0 dB from antenna input (Cascade port)

Models UA845-US, UK, E, and SWB:

3 dB typical, 0 dB to 3.5 dB from antenna input (Output ports 1–4)

1 dB typical, –1.6 dB to +1.8 dB from antenna input (Cascade port)

Output Connector Isolation

Greater than 25 dB

Third Order Intercept Point (3 OIP)

Typical 24 dBm

Input/Output AC Line Voltage

100 to 240 Vac, 50/60 Hz, unswitched

DC Output Voltage

12 Vdc, 4 connectors

Impedance

50 Ω

Operating Temperature Range

–7° C (+20° F) to 49° C (+120° F)

Overall Dimensions

44.5 mm high x 482.6 mm wide x 295.3 mm deep

(1 3/4 x 19 x 11 5/8 inches)

Net Weight

3.32 Kg (7 lbs, 5 oz)

Input/Output Antenna Connector Type

BNC-type

AC Power Consumption

15 W per unit typical. When used with 4 UC4's, 55 W max.