ATW-901A/L

The ATW‑901A/L is part of the Audio‑Technica “System 9” VHF wireless series. It includes a bodypack transmitter, an omnidirectional lavalier microphone, and a tabletop receiver. The system is designed for live‑sound reinforcement, presentations, speaking engagements, and similar applications where mobility and clear vocal pickup are required.
It operates in the VHF high‑band (around 169‑172 MHz) with four user‑selectable channels. Its receiver uses a dual‑antenna (dipole) design for improved range and stability.

Key Features

• Four selectable VHF channels (169.505 MHz, 170.245 MHz, 171.045 MHz, 171.905 MHz) for channel coordination.

• Receiver has both balanced XLR output and unbalanced ¼″ (6.3 mm) output jacks, making it flexible for use with various audio equipment.

• Non‑diversity, single‑channel receiver with dual‑antenna (dipole) system for extended operating range.

• Transmitter (bodypack) powered by two AA batteries; typical battery life approx. 8 hours (alkaline).

• RF output power of transmitter: 10 mW.