Audio Technica ATW11DE3/ATM75CW Wireless Headset Microphone

ATW-11DE3 AT-One Beltpack SystemOverall System
Operating FrequenciesDE3 Band: 482 - 512 MHz 
Number Of Channels2 x 4 frequencies
Frequency Stability+/- 0.005%, Phase lock loop frequency control
Modulation ModeFMFrequency Response60 Hz - 16 kHz
Operating Range60m, typical


Receiving SystemAntenna switching diversity
Image Rejection55dB minimum
Dynamic RangeHH: 108 dB, BP 103 dB (@ max deviation)
Sensitivity10dBµV (S/N 60dB @ 20 kHz deviation)
Total Harmonic Distortion
Audio Output Unbalanced-2dBV
Audio Output Balanced4dBV
Output Connectors (Microphone)Balanced: XLRM-type
Output Connectors (Instrument)Unbalanced: 6.3 mm mono jack
Maximum Output LevelMic / Line (0 / -20dB)
Antenna InputBNC type, 50 - BIAS voltage 12V DC 100mA each
Dimensions200 mm x 42 mm x 122 mm (W x H x D)
Weight418 g without accessories
Accessories IncludedAC Adapter, Antennas, Rack mount adapter, protective carrying case


Belt Pack
RF Power Output10 mWSpurious EmissionsFollowing national regulations
Input ConnectionsPin 1: GND
Pin 2: INST
Pin 3: Mic
Pin 4: DC Bias +10V
Battery TypeTwo 1.5V AA alkaline (not included)
Battery Life10 hours - depending on battery type and use pattern
Dimensions66 mm x 98 mm x 22 mm (W x H x D)


ATM75CW
ElementFixed-charge back plate, permanently polarized condenser
Polar PatternCardioid
WeightMicrophone: 60 g (2.1 oz)
DimensionsMicrophone: 20.4 mm (0.80") diameter
Headset: 120.0 mm (4.72") nominal at widest point, 80.5 mm (3.17") flexible boom
Cable4.6' (1.4 m) long (permanently attached to microphone), 0.11" (2.8 mm) diameter, 2-conductor shielded cable with HRS-type connector
Accessories IncludedAT8439 clothing clip; AT8139L large windscreen; AT8139S small windscreen