
Audio Technica ATW-R900A, System 9 wireless system
Descriptions Audio Technica ATW-R900A, System 9 wireless system The Audio Technica ATW-R900A is a system 9 frequency-Agile VHF Wireless System Receiver and also a single-channel receiver, although it is a frequency agile system. In this model of Audio Technica ATW-R900A you can select any one of the four frequencies (169.505,170.245, 171.045 and 171.905 MHz) and you can use up to four system 9 wireless systems at the same time, if each system is set to a different frequency. Audio Technica ATW-R900A receiver is designed to give a rock-solid performance and can be used when paired with a bodypack transmitter or a handheld transmitter and microphone (sold separately) for capturing audio in sound reinforcement applications. In addition, Audio Technica ATW-R900A receiver is equipped with an advanced dipole antenna for extended operatinf range, which improves operation by providing a ground element in addition to the usual signal element. The ATW-R900a offers volume control along with AF Peak, RF, and power indicator lights. Audio Technica ATW-R900A Product Features Easy operation and clear, natural sound quality 4 selectable frequency-coordinated VHF channels Balanced XLR and unbalanced 1/4" output jacks enable use with a wide variety of audio gear Reliable performance and durable construction Advanced dipole antenna system for extended operating range Specifications Overall System Type VHF high band Operating Frequencies 169.505, 170.245, 171.045, and 171.905 MHz Modulation Mode FM Maximum Deviation ±10 kHz Dynamic Range ≥90 dB (A-weighted), typical Total Harmonic Distortion (THD) <1% (at 1 kHz, ±10 kHz deviation) Operating Range 200' / 60 m typical, open range environment with no interfering signals Operating Temperature Range 40 to 110°F / 4 to 43°C, battery performance may be reduced at very low temperatures Frequency Response 80 Hz to 13 kHz Receiver Specifications Receiving System Non-diversity, single-channel, dual-antenna system Image Rejection 50 dB minimum RF Sensitivity 20 dBu V at 60 dB S/N ratio (50 Ohms termination) Audio Output Nominal Output Level Balanced XLR: 350 mV (1 kHz modulation, 10 kHz deviation, 100-kOhm load) Unbalanced 1/4" (6.3 mm): 700 mV (1 kHz modulation, 10 kHz deviation, 100-kOhm load) Power Supply 100 to 240 VAC (50/60 Hz) to 12 VDC (center positive) switched mode external power supply Dimensions (W x H x D) 7.5 x 1.8 x 5.1" / 19.0 x 4.6 x 12.9 cm Weight 12.0 oz / 340.2 g