The Shure PA821BX Antenna Combiners 865-960 MHzfrom Shure PA821BX Antenna Combiners 865-960 MHzis designed to optimize RF management for Shure PSM Personal Stereo Monitor systems. It can be used when multiple systems are required for monitoring on stage, theater, and rehearsal applications.

The combiner efficiently optimizes up to eight PSM transmitters (sold separately) when racked in a central location, while also reducing rack clutter. It is built with LED indicators for signal overload and signal presence. Additionally, the unit's fan design improves thermal efficiency and ambient noise.

Combines up to Eight PSM Transmitters    Improves RF Networking    Reduces Rack Clutter    Wideband Operation 865 to 960 MHz    8-Input LED Signals    LED Indicators for Signal Overload

Combines up to eight PSM transmitters to a single antenna set

Improved intermodulation artifacts for cleaner RF environment

Reduces rack clutter

Daisy-chain up to 2 combiners with the expansion port

LED indications of signal presence, signal overload

Improved fan design significantly improves thermal efficiency and ambient noise

Related Questions and Answers

Q: 1. The unit says this is good for 470-698 MHz. The headline says 470-900. Please, what is correct?

A: The Shure UA874WB Wideband Active Directional Antenna (470 to 900 MHz), BH # SHUA874WB, is designed for UHF signal reception extending from 470 to 900 MHz.This is also documented in the user guide. Please note the "WB" (Wide Band) designation on page 3/4: https://www.bhphotovideo.com/lit_files/1096710.pdf

Q: 2. I'm running 50' of cable between our IEM Combiner and the Shure PA805SWB antenna. Will this amplifier work for this application?

A: The Shure UA834WB In-Line Antenna Amplifier would not be recommended for use with an IEM transmitter, as it is intended for use only with wireless microphone receivers. However, as long as your run is under 100' and you are using high-quality cable, there is no real need for an amplifier in this particular case.

Q: 3. Description says this can handle up to five wireless receivers, but the picture of the back of the unit looks like there are only enough BNC connections for four receivers. Can someone clarify?

A: Michael F. That is correct bro. You can use up to 5 different wireless units. There are two outputs in the back A & B. Each output has 2 sets of out puts for FOUR(4) units, but if you notice next to each output bank youll find 1 cascade on each side equality to two total on the back. If you use those, now you have the capacity to use 5 units. Notice that if you do use the cascade you wont be able to connect multiple units if that was your intention. If youre only using one unit, you will be able to use 5 units using the cascade, if your intention is to use multiple units then 4 max is what you can use per unit. I hope this helps brotha. I use 2 of them for our church and I use 4 wireless units per unit as I have them linked together through cascade.

Q: 4. how many microphones can connect too this ?

A: This antenna can receive signal from any number of active transmitters within range (based on the antenna's position and gain settings) that are transmitting between 470698 MHz. To clarify, this item's purpose in your wireless setup is to act as an extension of your receivers which, when properly placed and configured according to your application, can improve your transmitter(s) signal reception. However, it should be noted that your receivers are the devices that are actually connecting (or syncing) with your transmitters to interpret the captured signal of each active wireless microphone or bodypack. Thus, any limitations in number of transmitters you are able to use simultaneously would be based on the capabilities and coordination of your receivers rather than the number or type of antennas you are using.

Q: 5. Can this accomodate different sets like 2x BLX4R and 2x SLXD4 with varying frequencies ?

A: Yes, the Shure UA844+SWB UHF Wideband Antenna Distribution System can accommodate various receivers operating within the 470 to 960 MHz frequency range.

Q: 6. do I need one or tow of these?

A: This would depend on whether your specific application calls for a diversity or non-diversity wireless system and what kind of coverage is needed. In many circumstances however, using two is most common.

Q: 7. Can it provide power for any passive antenna?

A: The Electro-Voice RFAMP Active RF Antenna Booster (470 to 960 MHz) is designed for use mainly with the Electro Voice RE3 UHF wireless microphone system. However, it could be used with other wireless systems' antennas.

Q: 8. Can these be used with non-Shure receivers?

A: Yes, you can use the Shure UA844+SWB UHF Wideband Antenna Distribution System with receivers from other manufacturers as long as the receivers operate within the 470 to 960 MHz frequency band.

Q: 9. Can you use this with a mix of wireless bands? For example I have 3x H19 (542-572MHz) and 1x G5 (494-518MHz)

A: Yes, the UA844+SWB covers the full range between 470 to 960 MHz so it can be used with the H19 (542 to 572 MHz) and G5 (494 to 518 MHz) wireless systems and any others that fall within the frequency range that the antenna covers.

Q: 10. Are these made for permanent outdoor use?

A: No, the Shure UA874 Active Directional Antenna is not designed or rated to be installed outdoors. Shure recommends an antenna such as the Winegard Elite 7550 Amplified Outdoor/Attic HDTV Antenna (BH #WIWE7550A) as an alternative for use in permanent outdoor situations: https://bit.ly/3HWHJOA