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) |