PA421B Antenna Combiners are complementary accessories for Shure PSM® Personal Stereo Monitor systems. When multiple systems are required for monitoring applications, the PA421B combiners quietly and efficiently optimize RF management for up to four PSM® transmitter, while also reducing rack clutter. (Directly replaces PA421A.) The PA421B is compatible with Shure PSM300, PSM 900 and PSM 1000.

FEATURES

• Combines up to four PSM transmitters to a single antenna set for improved RF networking & reduced rack clutter.
• Wideband operation (470-865 MHz)
• 4 Input LED signals (green when active; off when inactive)
• Quieter, temperature-sensitive fan for significant reductions in ambient unit noise and heat
• Daisy-chain up to 2 combiners with the expansion port.
• LED indicators for signal presence and signal overload
• Passive (non-powered) antenna combining* * Contact Shure Service Department for more detail -- Requires modification of unit by qualified service technician for this function.