Shure Complete Guide to UA845 Specifications and Features

Models: UA845

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SPECIFICATIONS

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

500–900 MHz

UA845 UK

500–900 MHz

UA845 E

500–900 MHz

Distributed Output Level (Gain)

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

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

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

ModelsUA845 US, UK and E:

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

Maximun Current Supply from DC Outputs

1.1Amps

Impedance 50 Ω

Operating Temperature Range –7° C (+20° F) to 49° C (+120° F)

Overall Dimensions

44.5mm high x 482.6 mm wide x 295.3 mm deep (1 3/4 x 19 5/8 x 11inches)

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.

Certification

UA845: LISTED by UL and CUL (U.S. and Canada), IC and FCC; IC Certified (Canada). Meets applicable European direc- tives for CE marking eligibility. VDE GS-Certified. Meets Re- quirements of EMC Standard and 301 489 Parts 1 and 9. Meets the essential requirements of the European R&TTE Directive 99/5/EC and are eligible to carry the CE marking.

Furnished Accessories

2 ft. Coaxial Antenna Cable (RG-58) (12)

UA802

Optional Accessories

1/2-Wave Antenna

 

UA820A

(774–865 MHz)

UA820B

(690–746 MHz)

UA820C

(662–698 MHz)

UA820D

(554–590 MHz)

UA820E

(746–784 MHz)

25 ft. Coaxial Cable (RG-8/X)

UA825

50 ft. Coaxial Cable (RG-8/X)

UA850

30.4 m (100 ft.) Antenna Extension Cable

UA8100

In-Line RF Amplifier

 

UA830A

(782–810 MHz)

UA830UB

(692–716 MHz)

UA830C

(800–830 MHz)

UA830D

(774–782 MHz)

UA830KK

(838–862 MHz)

UA830WB

(470–900 MHz)

Active Directional Antenna

 

UA870A

(782–810 MHz)

UA870MB

(800–830 MHz)

UA870MC

(774–782 MHz)

UA870KK

(838–862 MHz)

UA870UB

(692–716 MHz)

UA870WB

(470–900 MHz)

Replacement Parts

Hardware Kit

90VL1371

Bulkhead Adapters

95A8647

120 VAC Power Line Cord

95A8389

230 VAC Power Line Cord

95A8247

240

VAC Power Line Cord (U.K.)

95A8713

120

VAC, 16-in. Power-Through Cord

95A8576

230

VAC, 18-in. Power-Through Cord

95A8678

12 Vdc Power Cables

95A8420

THIS RADIO EQUIPMENT IS INTENDED FOR USE IN MUSICAL PROFESSIONAL ENTERTAINMENT AND SIMILAR APPLICATIONS.

NOTE: THIS RADIO APPARATUS MAY BE CAPABLE OF OPERATING ON SOME FREQUENCIES NOT AUTHORIZED IN YOUR REGION. PLEASE CONTACT YOUR NATIONAL AUTHORITY TO OBTAIN INFORMATION ON AUTHORIZED FREQUENCIES FOR WIRELESS MICROPHONE PRODUCTS IN YOUR REGION

ENGLISH

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Shure UA845 manual Specifications, Furnished Accessories, Optional Accessories, Replacement Parts

UA845 specifications

The Shure UA845 is a sophisticated antenna distribution system designed for professional audio applications, particularly in live sound and broadcast environments. Its primary purpose is to enhance the performance and reliability of wireless microphone and intercom systems by effectively managing multiple antennas and improving signal quality.

One of the standout features of the UA845 is its ability to support both active and passive antennas. This versatility allows users to customize their setup according to the specific needs of their venue or event. The UA845 offers four outputs that can connect to different receivers, enabling multiple wireless systems to operate simultaneously without interference. Each output is individually buffered, ensuring that the signal remains strong and clear, even when distributing to several devices.

The UA845 employs advanced RF filtering technology to minimize noise and interference from other electronic devices. This feature is especially beneficial in crowded environments where wireless frequencies may be congested. The built-in signal amplification further enhances performance, allowing for longer cable runs without degradation of audio quality. With a robust construction, the unit is reliable and durable, making it suitable for the rigors of touring and live performance.

Additionally, the UA845 includes a built-in power supply that can feed power to the connected antennas, simplifying the setup and reducing the need for additional power sources. This power distribution functionality also helps to maintain a clean, organized stage setup.

For those in need of monitoring and control, the UA845 comes equipped with LED indicators that provide visual feedback on power status, signal strength, and RF activity. This feature allows users to troubleshoot potential issues quickly and ensures optimal performance during critical moments.

The UA845 is also compatible with the Shure Axient Digital and QLX-D systems, making it a flexible option for professionals who rely on high-quality audio solutions. Its seamless integration with these systems highlights its importance in comprehensive audio setups, ensuring that engineers and performers alike can rely on exceptional sound reproduction.

In summary, the Shure UA845 is an essential tool for audio professionals, boasting features like active and passive antenna support, signal amplification, RF filtering, and an integrated power supply. Its design prioritizes both performance and ease of use, making it a valuable addition to any wireless audio system.