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Two completely independent receiver channels in a single unit, for simultaneous operation of two microphones (dual-channel systems) |
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Compact receiver is easy to mount on a camera |
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UHF reception with 996 frequencies selectable in 25 kHz steps |
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Automatic frequency scanning for easy selection of open channels |
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Tone Lock squelch system eliminates interference when transmitter is off |
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Two independent balanced outputs (dual-channel systems) |
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Headphone monitor output with independent level control |
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Battery fuel-level indicators on transmitters and receiver |
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Soft-touch controls for easy frequency selection |
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True Diversity operation for resistance to multi-path interference and dropouts |
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LCD frequency and battery status display with backlight |
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Antenna and AF Peak LED indicators |
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Dual-channel receiver can operate in single-receiver mode to extend battery life when only one audio channel is in use (dual-channel systems) |
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Transmitters operate in low or high transmission modes to conserve battery life/maximize power |
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Easy, user-friendly operation |
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Clear, natural sound quality |
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Powered by AA batteries |
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System components of the 1800 Series and 3000 Series Wireless Systems can be used interchangeably |
| 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 |
| 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) |
| Current Consumption | Dual-channel Operation: 600 mA typical |
| Battery Life | Dual-channel Operation (ATW-R1820): 6 hours typical |
| Receiver Dimensions | ATW-R1820: 85.0 mm (3.35") W x 133.0 mm (5.24") H x 36.0 mm (1.42") D |
| Receiver Net Weight | ATW-R1820: 425 grams (15.0 oz) (without batteries) |
| Body-Pack Transmitter RF Power Output | High: 30 mW; Low: 10 mW, nominal |
| Body-Pack Transmitter Spurious Emissions | Under federal regulations |
| Body-Pack Transmitter Dynamic Range | >105 dB, A-weighted |
| Body-Pack Transmitter Input Connections | High impedance, low impedance, bias |
| Body-Pack Transmitter Batteries | Two 1.5V AA alkaline (not included) |
| Body-Pack Transmiter Current Consumption | High: 180 mA; Low: 160 mA, typical |
| Body-Pack Transmitter Battery Life | Approximately 6 hours (High); 8 hours (Low), depending on battery type and use pattern |
| Body-Pack Transmitter Dimensions | 66.0 mm (2.60") W x 87.0 mm (3.43") H x 24.0 mm (0.94") D |
| Body-Pack Transmitter Net Weight | 80 grams (2.8 oz) (without batteries) |
| Warranty | Audio-Technica 1 year limited warranty |
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