Audio-technica ATW-2120b 2000 Series UHF Wireless Handheld Microphone System ไมโครโฟนไร้สาย ไมค์ไวเลส ไมโครโฟนไร้สายแบบมือถือ Handheld Transmitter System ของแท้

- ATW-R2100b receiver

- ATW-T220a handheld cardioid dynamic microphone/transmitter

- Automatic frequency scanning

- Up to 10 user selectable channels available

- Tone Lock™ squelch function fights interference

Overall System

Operating Frequencies UHF band

656.125 – 678.500 MHz (D Band)

854.900 – 864.900 MHz (F Band)

487.125 – 506.500 MHz (I Band) 

606.500 – 631.000 MHz (U Band)

Number Of Channels 10 total

Frequency Stability ±0.005%, Phase Lock Loop frequency control

Modulation Mode FM

Frequency Response 100 Hz to 15,000 Hz

Operating Range 100 m (300') typical

Operating Temperature Range 41° F (5° C) to 113° F (45° C)

Receiver

Receiving System True Diversity

Image Rejection 55 dB nominal, 50 dB minimum

Signal-To-Noise Ratio >100 dB at 40kHz deviation (A-weighted), maximum modulation 40 kHz

Sensitivity 20dBuV (S/N 60dB at 5 kHz deviation, IEC-weighted)

Total Harmonic Distortion < 1% (at 1 kHz, ±20 kHz deviation)

Audio Output Attenuator (ATTN) Unbalanced: 25mV (100k ohms load), 1/4" phone jack

Balanced: 50mV (Attenuator; 0dB)

12.5mV (Attenuator; -12dB) at 1 kHz ± 5kHz deviation, 100k ohm load, XLRM-type

Antenna Input BNC-type 50 Ohms – Bias voltage 12V DC, 60mA each

Dimensions 210 mm x 44 mm x 162.2 mm (W x H x D)

Weight 1.0kg

Accessories Included Two flexible UHF antennas, rack mount adapters, AC adapters

Handheld Transmitter

RF Power Output High: 30mW; Low: 10mW, nominal

Spurious Emissions According to National Regulations

Microphone Element Dynamic, unidirectional

Battery Type Two 1.5V AA alkaline or rechargeable AA NiMH (not included)

Current Consumption 150 mA typical

Battery Life Approximately 9 hours (low), 7 hours (high)

Dimensions 229 mm long – 53.5 mm maximum diameter

Net Weight 221g

Accessories Included AT8456a Quiet-Flex™ Stand Clamp