Antenna Distro
Shure PA421A Antenna Combiner
Shure·Model PA421A·shure-pa421a
About the Shure PA421A
The PA421A lets you combine up to four IEM transmitter RF outputs into a single antenna, dramatically reducing the number of antennas needed on stage. This is essential for clean deployments where multiple PSM transmitters share a common antenna rather than each having its own. Passive design means no power required and zero points of failure in the signal path.
4-to-1 passive antenna combiner for PSM transmitters. Combines four transmitter outputs into one broadband antenna.
I/O Ports (5)
| Port | Connector | Direction | Signal | Channels |
|---|---|---|---|---|
| Input 1 | BNC | input | antenna | — |
| Input 2 | BNC | input | antenna | — |
| Input 3 | BNC | input | antenna | — |
| Input 4 | BNC | input | antenna | — |
| Combined Out | BNC | output | antenna | — |
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