The manual provides installation, operation, specifications, and usage tips for the Audio‑Technica ATW‑DA49 UHF antenna distribution system.
The ATW‑DA49 is a UHF (440‑900 MHz) antenna distribution system that splits a single antenna’s signal to up to four wireless receivers. It supports both active and passive antennas and includes built‑in 12 V DC power for antenna or external RF equipment.
The guide covers power connections, front‑panel and rear‑panel controls, antenna and BNC connector wiring, rack‑mount installation with the ATW‑RM1 kit, and safety warnings. Technical specifications such as frequency range, gain, impedance, power outputs, dimensions and recommended cabling are also listed. This manual is written in Chinese.
| Frequency range | 440 ~ 900 MHz |
|---|---|
| Gain | 0 dB (typical) |
| Impedance | 50 Ω (typical) |
| Antenna power supply | +12 V DC, max 100 mA per antenna input |
| Power supply (internal) | DC 12 V, 3 A, 100‑240 V switchable input |
| Dimensions (W×H×D) | 210 mm × 45.5 mm × 176 mm |
| Weight | 0.9 kg |
| BNC connectors (antenna terminals) | 10 (female) |
| Receiver power output | 12 V DC, 500 mA per group (4 groups) |
One ATW‑DA49 can provide distribution connections for up to four receivers.
Each of the four power groups supplies 12 V DC at up to 500 mA.
The system uses standard BNC connectors; the antenna terminals are BNC female (10 units).
Use a low‑loss RG‑8 coaxial cable for distances over 8 m.