Broadcast & Production Equipment : Audio-Technica ATW-1811 single channel portable ENG wireless system, Audio-Technica, Audio-Technica-ATW-1811

For simultaneous operation of two microphones, dual-channel 1800 wireless systems include the ATW-R1820 dual receiver with two completely independent receiver channels in a single unit. Dual balanced outputs enable signals to be mixed, or independently assigned to each output. Independent audio level controls provide flexible audio mixing and monitoring possibilities.

For those using a single microphone, the single-channel 1800 Series systems include the ATW-R1810 single-channel receiver.

1800 Series wireless systems come equipped with a choice of plug-on and body-pack transmitters. The ATW-T1801 UniPak® body-pack transmitters feature a professional locking 4-pin connector compatible with all Audio-Technica Wireless Essentials® microphones. The ATW-T1802 plug-on transmitters feature a locking XLR connector for adapting dynamic and condenser microphones. Both transmitters offer selectable high and low transmission modes to conserve battery life/maximize power.

Additional 1800 Series features include automatic frequency scanning, Tone Lock™ squelch, back-lit LCD, soft-touch buttons, headphone monitor output with independent level control, and durable metal construction.

Two completely independent receiver channels in a single unit, for simultaneous operation of two microphones (dual-channel systems)
Compact receiver is easy to mount on a camera
UHF reception with 996 frequencies selectable in 25 kHz steps
Automatic frequency scanning for easy selection of open channels
Tone Lock™ squelch system eliminates interference when transmitter is off
Two independent balanced outputs (dual-channel systems)
Headphone monitor output with independent level control
Battery fuel-level indicators on transmitters and receiver
Soft-touch controls for easy frequency selection
True Diversity operation for resistance to multi-path interference and dropouts
LCD frequency and battery status display with backlight
Antenna and AF Peak LED indicators
Dual-channel receiver can operate in single-receiver mode to extend battery life when only one audio channel is in use (dual-channel systems)
Transmitters operate in low or high transmission modes to conserve battery life/maximize power
Easy, user-friendly operation
Clear, natural sound quality
Powered by AA batteries
System components of the 1800 Series and 3000 Series Wireless Systems can be used interchangeably**

Overall Specifications

Operating Frequencies: UHF Band D: 655.500 to 680.375 MHz
Number of Channels: 996 total per band (25 kHz increments)
Frequency Stability: ±0.005%, Phase Lock Loop frequency control
Modulation Mode: FM
Normal Deviation: ±10 kHz
Operating Range: 100 m (300') typical
Operating Temperature Range: 23° F (- 5° C) to 113° F (45° C)
Frequency Response: 70 Hz to 15 kHz

Receiver Specifications

Receiving System: Dual independent RF sections, automatic-switching diversity
Image Rejection: >50 dB typical
Signal-to-noise Ratio: 104 dB at 30 kHz deviation (A-weighted), maximum modulation 37 kHz
Total Harmonic Distortion: <1% (±10 kHz deviation at 1 kHz)
Sensitivity: 25 dBµV, (S/N 60 dB at 5 kHz deviation, A-weighted)
Audio Output: Balanced: 27 mV (at 1 kHz, ±5 kHz deviation)
Output Connector: 3-pin mini XLR (TA3M-type)
Monitor Headphone Output: (typical) 35 mW max., 32 ohm load (per channel)
Monitor Headphone Jack: 3.5 mm TRS, signals on both Tip and Ring
External Power Requirements: 12V DC nominal, 500 mA
Batteries: ATW-R1820: Six 1.5V AA alkaline (not included); ATW-R1810: Four 1.5V AA alkaline (not included)
Current Consumption: Dual-channel Operation: 600 mA typical; Single-channel Operation 350 mA typical
Battery Life: Dual-channel Operation (ATW-R1820): 6 hours typical*
Single-channel Operation: (ATW-R1810): 10 hours typical* * depending on battery type and use pattern
Dimensions: ATW-R1820: 85.0 mm (3.35") W x 133.0 mm (5.24") H x 36.0 mm (1.42") D, ATW-R1810: 75.0 mm (2.95") W x 125.0 mm (4.92") H x 32.0 mm (1.25") D
Net Weight: ATW-R1820: 425 grams (15.0 oz) (without batteries), ATW-R1810: 300 grams (10.5 oz) (without batteries)
Accessories Included: ATW-R1820: Two flexible UHF antennas; two 18" TA3F to XLRM output cables; belt pouch, ATW-R1810: Two flexible UHF antennas; 18" TA3F to XLRM output cable; belt pouch

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