Audio-Technica ATW-DR3220LK Two-Channel Digital Wireless Receiver

The ATW-DR3220LK is the two-channel receiver for the D50 digital UHF system, in a half-rack chassis that fits a rolling rack or sits on a shelf beside a mixer. It is LINK-enabled, so it talks to Audio-Technica charging stations and management software over the network rather than needing a separate control path, and it runs in either normal antenna mode or a switchable second RF mode.

It tunes across DF2: 470.125 to 607.875 MHz with AES256 encryption on the link, passing 20 to 20,000 Hz audio at 48 kHz with 2.1 ms typ of latency. The receiver ships with an AC adapter and can also be powered from PoE+, on its own or as a backup supply, which is what lets a rack survive a wall-wart failure mid-show.

Operating Frequencies	DF2: 470.125 to 607.875 MHz
Modulation Mode	Standard: 8-PSK HD mode: 16QAM
Occupied Bandwidth	Standard: 192 kHz HD mode: 96 kHz
Frequency Response	Standard: 20 to 20,000 Hz HD mode: 20 to 20,000 Hz Depending on attached microphone element.
Operating Range	100 m, open range with no interfering signals
Total Harmonic Distortion	0.1% or less (at 1 kHz, -20 dBFS)
Maximum Simultaneous Use (recommended)	Standard: 17 channels / 6 MHz Results may vary depending on the radio environment and usage conditions.
Encryption System	AES256