The Shure UA221 is a passive bi-directional antenna splitter, one antenna feeds two receivers, or two antennas combine into one input, across 10-1000MHz on 50-ohm BNC. The two-receiver rig’s alternative to a powered distro, with no mains to find.
Features
Passive splitter/combiner, one antenna to two receivers
10-1000MHz on 50Ω BNC
20dB isolation between ports
No power required
Tiny: 64mm x 48mm x 22mm, 45g
NoteThis version blocks DC, for powered/active antennas needing bias, use the UA221-C-J variant. Passive splitting costs ~5dB per leg; keep antenna runs short.
Specifications
| Type | Passive antenna splitter/combiner |
| SKU | UA221 |
| Frequency range | 10-1000MHz |
| Connectors | BNC, 50Ω |
| Isolation | 20dB |
| Insertion loss | 2dB (plus inherent 3dB split) |
| Dimensions | 64mm x 48mm x 22mm |





