Propriétés techniques
| Expandability |
| The UA845 UHF Antenna Distribution System is designed for large UHF or UHF-R wireless systems. Each unit allows up to four wireless receivers to use the same two antennas, and the CASCADE ports allow connection to a fifth receiver or a second UA845. |
| Compatibility |
| The UA845 is compatible with all Shure wireless microphone receivers operating within a compatible frequency range (see UHF Carrier Frequency Ranges in the Specifications section). |
| CASCADE Ports |
| Two 50 Ω, BNC-type antenna CASCADE ports allow an additonal UA845 unit or a fifth wireless receiver. A large wireless system can be run off of a single pair of antennas. |
| Power OUTPUT and OUT Connectors |
| Up to five (5) U4 or UR4 receivers can be daisy-chained and powered from a single source via the Power OUTPUT connectors. Up to four (4) UC4 receivers can be powered from the UA845 using the 12 Vdc OUT connectors. |
| Low Noise and Intermodulation Distortion |
| The UA845 maintains clean signals with minimal distortion. |
| Insertion Loss Compensation |
| Whenever a signal is split to multiple output ports, there is a loss in signal strength. The UA845 amplifies signals to compensate, ensuring a strong signal to the receivers. |
| Front-Mounted Antennas |
| The UA845 comes with hardware to front-mount the antennas, if desired. |
| UHF Carrier Frequency Range |
| 500–900 MHz |
| Distributed Output Level (Gain) |
| 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) |
| Power Requirements |
| UR2: Two 1.5V AA batteries |
| AC Power Consumption |
| 15 W per unit typical. When used with 4 UC4’s, 55 W max. |
| Logiciel de management des systèmes HF SHURE (U4D, UR4D) |