Overview
Overview
The Ubiquiti UniFi Mesh Antenna (UMA-D) is an optional accessory for the UniFi AP AC Mesh (UAP-AC-M) that replaces the standard removable omni antennas with a high-gain directional dual-band antenna. Where the standard omni antennas broadcast equally in all directions, the UMA-D focuses signal into a defined sector — delivering 15 dBi gain on 5 GHz with a 45° beamwidth and 10 dBi on 2.4 GHz with a 90° beamwidth. This concentrated pattern extends usable range, improves link quality between mesh APs, and reduces interference from outside the coverage sector.
The UMA-D connects to the UAP-AC-M via two RP-SMA connectors and mounts on a wall or pole using a 3-axis ball joint that provides precise azimuth, elevation, and orientation adjustment. The UV-stabilised plastic enclosure is rated for indoor and outdoor use, making it suitable for permanent outdoor mesh deployments where coverage needs to be shaped and directed.
Key highlights
- 15 dBi gain on 5 GHz — significantly higher than the standard 4 dBi omni antenna
- 10 dBi gain on 2.4 GHz — higher than the standard 3 dBi omni antenna
- 45° beamwidth on 5 GHz for focused long-range directional coverage
- 90° beamwidth on 2.4 GHz for semi-directional sector coverage
- 3-axis ball joint mount — adjustable in azimuth, elevation, and orientation
- 2 × RP-SMA connectors — direct replacement for UAP-AC-M omni antennas
- UV-stabilised plastic enclosure — indoor and outdoor rated
- Wall and pole mount hardware included
- Available in single- and five-packs
Recommended for
- Point-to-point mesh links — pair two UAP-AC-M units each fitted with a UMA-D to create a high-gain directional mesh backhaul between buildings or across open spaces
- Sector coverage — replace omni antennas with UMA-D to create defined coverage zones in campuses, stadiums, and large outdoor venues
- Range extension — the 15 dBi 5 GHz gain dramatically extends mesh link distance compared to the standard 4 dBi omni
- Interference reduction — focused beamwidth minimises co-channel interference from sources outside the coverage sector
Features
Antenna performance
- High-efficiency directional radiation pattern
- Dual-band, dual-polarity design
- Optimised for 802.11ac
- 30 dB cross-polarisation isolation (5 GHz)
- Max VSWR 2:1
- Dual-linear polarisation
Mounting & installation
- 3-axis ball joint — azimuth adjustment
- 3-axis ball joint — elevation adjustment
- 3-axis ball joint — orientation adjustment
- Wall mount hardware included
- Pole mount hardware included
- Vertical and horizontal placement
Compatibility
- Compatible with UAP-AC-M
- 2 × RP-SMA female connectors
- Direct drop-in replacement for UAP-AC-M omni antennas
Specifications
Physical
| Dimensions | 201.3 × 128 × 32.5 mm (7.9 × 5 × 1.3″) |
| Weight (without mount) | 400 g (0.9 lb) |
| Weight (with mount) | 480 g (1.1 lb) |
| Enclosure | Outdoor UV-stabilised plastic |
| Mounting | Wall, pole (3-axis ball joint mount included) |
| RF connectors | (2) RP-SMA female |
RF performance
| Spec | 5 GHz | 2.4 GHz |
|---|---|---|
| Gain | 15 dBi | 10 dBi |
| HPOL beamwidth | 45° | 90° |
| VPOL beamwidth | 45° | 90° |
| Elevation beamwidth | 45° | 90° |
| Cross-pol isolation | 30 dB | — |
| Max VSWR | 2:1 | 2:1 |
| Polarisation | Dual-linear | Dual-linear |
Frequency support
| Supported frequency range | 2.4–2.5 GHz, 5.1–5.9 GHz |
Compatibility
| Compatible AP | UniFi AP AC Mesh (UAP-AC-M) |
| Connector type | RP-SMA female (×2) |
| Pack options | Single-pack, five-pack |
In the box
UMA-D dual-band directional antenna with 3-axis ball joint mount, wall mount, and pole mount hardware. A UAP-AC-M access point is required and sold separately.
Documentation
Downloads & resources
Download the Ubiquiti UniFi Mesh Antenna (UMA-D) datasheet covering full RF specifications, mounting instructions, and compatibility information.