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Summary of Contents for Shure PA421B
- Page 1 PA421B PA821B Antenna Combiner PA421B PA821B Antenna Combiner user guide. Version: 1.2 (2022-F)
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Page 2: Table Of Contents
Shure Incorporated Table of Contents Using Multiple Antenna Combiners with a Single Anten PA421B PA821B Antenna Combiner Specifications General Description Features RF Frequency Range Model Variations Accessories Included Components Furnished Accessories Front Panels Optional Accessories Rear Panels Wireless Accessory Wizard... -
Page 3: Pa421B Pa821B Antenna Combiner
Shure Incorporated PA421B PA821B Antenna Combiner General Description Shure antenna combiners actively combine RF outputs from multiple wireless IEM transmitters to a single antenna, improving RF performance and conserving rack space. Features • Reduction of intermodulation artifacts for cleaner RF environment •... -
Page 4: Front Panels
RF operating range. The LED indicators on the PA421B and PA421BX display RF signal and DC current draw. ② LED Indicators The LED indicators on the PA821B and PA821BX display RF signal only. See the section on LED Indicators for more information. -
Page 5: Installation
② Exhaust Air Vents For system cooling. ③ DC Power Outputs Available on the PA421B and PA421BX models for powering compatible transmitters PA421B: Connect up to 4 IEM transmitter outputs ④ RF Inputs PA821B: Connect up to 8 IEM transmitter outputs... -
Page 6: Led Indicators
Shure Incorporated LED Indicators PA421B and PA421BX The top 4 RF LED indicators display input signal presence. • Green = active • Red = RF input signal overload • Off = inactive The bottom 4 LEDs indicate current draw for each DC output. -
Page 7: Using Multiple Transmitters With A Single Antenna
Shure Incorporated Using Multiple Transmitters with a Single Antenna PA421B 7/15... - Page 8 Shure Incorporated PA821B Note: Use external power supplies or an optional power distribution cable to supply power to additional transmitters. The PA821B and PA821BX combiners do not supply DC power. 8/15...
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Page 9: Using Multiple Antenna Combiners With A Single Antenna
4.3 kg (9.5 lbs) PA821B, PA821BX 4.8 kg (10.5 lbs) Operating Temperature Range -18°C (0°F) to 63°C (145°F) Power Requirements 100 to 240 V AC, 5060 Hz Current Drain PA421B, PA421BX (referenced at 100 V AC) 1.09 A (109 VA) PA821B, PA821BX (referenced at 100 V AC) 1.59 A (159 VA) 9/15... - Page 10 Shure Incorporated Power Consumption PA421B, PA421BX 98 W max. PA821B, PA821BX 143 W max. RF Input Connector Type Configuration Active Impedance 50 Ω RF Gain 0 dB (±2 dB) RF Input Normal Operating Range up to +20 dBm max., protected up to +24 dBm LED Indicator Minimum Detection Threshold to Activate Channel 2.5 dBm LED Indicator Overload Threshold >24 dBm...
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Page 11: Rf Frequency Range
Shure Incorporated Insertion Loss <4 dB DC Outputs (PA421B, PA421BX) Output Voltage 15 V DC Output Current per output 660 mA max. Output Power per output 9.9 W LED Indicator Minimum Detection Threshold 85 mA LED Overcurrent Indicator >660 mA RF Frequency Range Band Frequency Range PA421B 470-865 MHz... -
Page 12: Optional Accessories
Shure offers antenna cables ranging from 6 to 100 feet. Wireless Accessory Wizard The Shure Wireless Accessory Wizard is a resource to help determine the correct RF accessories for your wireless system. You provide basic information about your setup and receive item recommendations and connection diagrams. -
Page 13: Information To The User
Rules. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio and television reception. Notice: The FCC regulations provide that changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment. -
Page 14: Licensing Information
REACH (Registration, Evaluation, Authorization of Chemicals) is the European Union (EU) and the United Kingdom (UK) chemical substances regulatory framework. Information on substances of very high concern contained in Shure products in a concentration above 0.1% weight over weight (w/w) is available upon request. - Page 15 L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. CE Notice: Hereby, Shure Incorporated declares that this product with CE Marking has been determined to be in compliance with European Union requirements. The full text of the EU declaration of conformity is available at the following site: https:// www.shure.com/en-EU/support/declarations-of-conformity.
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