audio-technica ATW-3110B/P2
3000B SERIES UNIPAK® SYSTEM WITH AT831CW
ATW-R3100b receiver
ATW-T310b UniPak® body-pack transmitter
AT831cW miniature cardioid condenser lavalier microphone
Nine pre-coordinated frequency scan groups
True Diversity operation reduces dropouts
Advanced digital Tone Lockâ„¢ squelch function fights interference

| Microphone | |
|---|---|
| Element | Condenser |
| Polar Pattern | Cardioid |
| Weight | 2.8 g |
| Dimensions | 25.0 mm (0.98") long, 10.2 mm (0.40") diameter |
| Output Connector | HRS 4-pin (for use with Audio-Technica UniPak® body-pack transmitters) |
| Cable | 55" (1.4 m) long (permanently attached to microphone), 2.6 mm (0.10") diameter, 2-conductor, shielded cable with HRS-type connector |
| Accessories Included | Clothing clip; AT8444 instrument adapter; AT8116 windscreen; protective carrying case |
| Overall System | |
|---|---|
| Operating Frequencies | UHF band 606.000 – 631.000 MHz (U Band – covering TV Ch. 38) 541.500 – 566.375 MHz (C Band) 655.500 – 680.375 MHz (D Band) 721.500 – 746.375 MHz (G Band) |
| Frequency Stability | ±0.005%, Phase Lock Loop frequency control |
| Minimum Frequency Step | 25kHz |
| Modulation Mode | FM |
| Maximum Deviation | ±35 kHz |
| Frequency Response | 70 Hz to 15 kHz (+1 dB, -3 dB) |
| Operating Range | 100m (300'), typical |
| Dynamic Range | > 110 dB (A-weighted), typical |
| Total Harmonic Distortion | < 1% (at 1 kHz, ±17.5 kHz deviation) |
| Operating Temperature Range | -5º C to +45º C (23º F to 113º F) |
| Receiver | |
|---|---|
| Receiving System | True Diversity |
| Image Rejection | 60 dB nominal, 55 dB minimum |
| Dynamic Range | >110 dB (A-weighted), typical |
| Sensitivity | 24dBuV (S/N 60dB at 5 kHz deviation, IEC-weighted) |
| Total Harmonic Distortion | < 1% (at 1 kHz, ±10 kHz deviation) |
| Audio Output Unbalanced | +7 dBV, 1/4" phone jack |
| Audio Output Balanced | +9 dBV, XLRM-type |
| Antenna Input | BNC-type 50 Ohms – Bias voltage 12V DC, 60mA each |
| Dimensions | 210 mm x 44 mm x 176 mm (W x H x D) |
| Weight | 1.1kg |
| Accessories Included | Two flexible UHF antennas, rack mount adapters |
| Belt Pack | |
|---|---|
| RF Power Output | High: 30mW; Low: 10mW, nominal |
| Spurious Emissions | According to National Regulations |
| Battery Type | 2 x 1.5V AA alkaline or rechargeable AA NiMH (not included) |
| Battery Life | Approximately 8 hours (low), 6 hours (high) |
| Dimensions | 66 mm x 87 mm x 24 mm (W x H x D) |
| Net Weight | 80g |
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