Shure PA821A Antenna Combiners are complementary accessories for Shure PSM Personal Monitor systems.
When multiple systems are required for monitoring environments, the PA821A combiners quietly and efficiently optimize RF management for up to eight PSM transmitters when racked in a central location, while also reducing rack clutter.
PA821A combiners ship with UA802 Coaxial Cable.
Note: This product is discontinued. The replacement product is PA821B.
Combines up to eight PSM transmitters into a single antenna set
- Improved RF networking
- Reduced rack clutter
- 8 Input LED signals (green when active; off when inactive)
- Quieter fan for significant reductions in ambient unit noise
- Temperature-sensitive fan power for significant reductions in ambient unit heat
Active-channel amplifier power for additional reductions in ambient unit heat
- 1 Channel engaged = 1 set of power amplifiers active
- Updated from PA821SWB, in which all power amplifiers were active in a block, regardless of how many of the 8 channels were active
PA421A or PA821A as a receiving antenna combiner
Yes, this concept will work. Note that the PA421A and PA821A were designed to combin...
PA821A and PA421A versus PA821SWB and PA412SWB
The PA821A features improved thermal management, which, when coupled with a new quieter fan, r...
Maximum RF Input - PA821A
The typical insertion loss from input to output of the PA821A is about -1.5 dB to -2 dB betwee...
Reserved TV channels and registering wireless mics
Background After the 700 MHz auction in 2009, many unoccupied TV channels are shared between...
Batteries and wireless microphones
Batteries and Wireless Microphones Benjamin Franklin first coined the term "battery&q...
Five Mistakes to Avoid When Using Wireless
While wireless systems have freed performers from the bonds of cords and cables, they've u...
Get Live Support
Instructional articles, guides, demos and more! Our experts offer industry-proven tips and tricks to help you get the most from your gear.
Service & Repair
Detailed policy information regarding customer service numbers, service modifications, and replacement parts.