Rated 4.9 (99 reviews)
The Sennheiser AD 1800 is a passive directional antenna for wireless microphone systems operating in the 1.8 GHz range. Its directional pickup pattern improves reception over the working area while rejecting interference from behind, making it well suited to fixed installs, theatre and live-event rigs where a remote, optimally-placed antenna position is needed. As a passive antenna it requires no DC power and connects to the receiver via standard 50 ohm coaxial cable.
CompatibilityDesigned for Sennheiser 1.8 GHz (1G8) wireless systems. Works with the AB 3-1G8 antenna booster, ASA 214-1G8 antenna splitter, and RG 58 or GZL 5000 antenna cable. Wideband 1,400-2,400 MHz frequency range covers the 1.8 GHz band.
Features
Passive design – no DC power or external supply required
Directional pattern with approx. 100° apex angle (-3 dB)
Front-to-back ratio greater than 14 dB for strong rear rejection
Approx. 4 dB gain across the operating range
Wide 1,400-2,400 MHz frequency range
BNC socket, 50 Ω connection
3/8″ or 5/8″ thread mounting for stands and brackets
Lightweight at approx. 116 g
Specifications
| Manufacturer | Sennheiser |
| Model | AD 1800 |
| Article number | 504916 |
| Type | Passive directional antenna for 1800 MHz range |
| Frequency range | 1,400-2,400 MHz |
| Apex angle (-3 dB) | approx. 100° |
| Front-to-back ratio | > 14 dB |
| Gain | approx. 4 dB |
| Connection | BNC socket, 50 Ω |
| Weight | approx. 116 g |
