The Sennheiser AWM UHF (article 508865) is an active directional antenna for Evolution Wireless Digital systems, covering the UHF I band from 470 to 694 MHz. It is built for installed and portable applications where directional pickup and adjustable gain improve RF reliability — boardrooms, lecture theatres, houses of worship and stage productions running EW-D or EW-DX.
Compatibility
Connects to any stationary Evolution Wireless Digital receiver or to the EW-D ASA antenna splitter. The antenna draws power down the coax via its DC-coupled BNC when used with the EW-D ASA or EW-DX EM 4 (Dante). When used with the EW-DX EM 2 (Dante) or EW-D EM, an optional external power supply is required.
Features
✓Active directional antenna for the 470–694 MHz UHF I band
✓Selectable amplification: −6, 0, +6 and +12 dB
✓DC-coupled BNC female connector, 50 Ω
✓Wall, ceiling or mic-stand mounting
✓3/8" tripod thread and VESA 100 x 100 fixing
✓Supplied with wall-mount adapter and drilling template
✓Halogen-free flame-retardant PC/ABS housing
✓Traffic white (RAL 9016) finish for discreet installation
Specifications
| Manufacturer | Sennheiser |
| Model | AWM UHF (470–694 MHz) |
| Article number | 508865 |
| Type | Active directional antenna |
| Frequency range | 470 – 694 MHz (UHF I) |
| Antenna gain | ≥ +3.0 dBi (480 MHz), ≥ +3.5 dBi (582 MHz), ≥ +4.5 dBi (694 MHz) |
| Amplification modes | +12 dB / +6 dB / 0 dB (−0.5 dB) / −6 dB |
| Polarisation | Linear |
| RF connector | BNC female, DC coupled |
| Impedance | 50 Ω |
| Max. RF output power | approx. +22 dBm |
| OIP3 | ≥ 35 dBm |
| Power supply | 12 V DC (9 – 18 V DC) / max. 100 mA @ 12 V |
| Mounting | 3/8" inside thread (tripod); VESA 100 x 100 |
| Dimensions | 180 x 180 x 53 mm (without wall bracket); 180 x 180 x 63 mm (with bracket) |
| Weight | approx. 700 g |
| Operating temperature | −10 °C to +55 °C |
| Housing material | Halogen-free flame-retardant PC/ABS |
| Colour | Traffic white (RAL 9016) |
