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Description
Designed for wet or dusty environments, the WM transmitter features O-ring sealed battery compartments and input jack, a compression sealed antenna port and gasket sealed control panel and back cover. Dual AA batteries provide twice the operating time of earlier watertight transmitter designs. La... Read MoreRetail Price: $3,106.00 Our Price: $2,205.00
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Description
Designed for wet or dusty environments, the WM transmitter features O-ring sealed battery compartments and input jack, a compression sealed antenna port and gasket sealed control panel and back cover. Dual AA batteries provide twice the operating time of earlier watertight transmitter designs. Larger membrane switches and control panel and a highly visible, backlit LCD enhance the user interface.
Features:
Digital Hybrid Wireless¨ is a revolutionary new design that combines digital audio with an analog FM radio link to provide outstanding audio quality and the exemplary RF performance of the finest analog wireless systems.
This overcomes channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. This proprietary algorithm is not a digital implementation of an analog compandor.
Instead, it is a technique which can be accomplished only in the digital domain. The process eliminates compandor artifacts, expanding the applications to include test and measurement of acoustic spaces and musical instruments.
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Product Specs
Operating frequencies | Block 470 470.100 - 495.600 Block 19 486.400 - 511.900 Block 20 512.000 - 537.500 Block 21 537.600 - 563.100 Block 22 563.200 - 588.700 Block 23 588.800 - 607.900 / 614.100 - 614.300 Block 24 614.400 - 639.900 Block 25 640.000 - 665.500 Block 26 665.600 - 691.100 | ||||||||||||
Channel Spacing | 100 kHz | ||||||||||||
Frequency selection | Control panel mounted membrane switches | ||||||||||||
RF Power output | Switchable; 50, 100 or 250 mW | ||||||||||||
Compatibility Modes (6) | Digital Hybrid Wireless¨ (400 Series), 200 Series, 100 Series, Mode 3, Mode 6, IFB | ||||||||||||
Pilot tone | 25 to 32 kHz; 5 kHz deviation (in 400 Series Hybrid Mode) | ||||||||||||
Frequency stability | ± 0.002% | ||||||||||||
Deviation | ± 75 kHz max. (in 400 Series Mode) | ||||||||||||
Spurious radiation | 60 dB below carrier | ||||||||||||
Equivalent input noise | -125 dBV, A-weighted | ||||||||||||
Input level | |||||||||||||
ÊÊÊÊ Dynamic mic | 0.5 mV to 50 mV before limiting. Greater than 1 V with limiting. | ||||||||||||
ÊÊÊÊ Electret lavaliere mic | 1.7 uA to 170 uA before limiting. Greater than 5000 uA (5 mA) with limiting. | ||||||||||||
ÊÊÊÊ Line level input | 17 mV to 1.7 V before limiting. Greater than 5 V with limiting | ||||||||||||
Input impedance | |||||||||||||
ÊÊÊÊ Dynamic mic | 300 Ohms | ||||||||||||
ÊÊÊÊ Electret lavaliere | Input is virtual ground with servo adjusted constant current bias | ||||||||||||
ÊÊÊÊ Line level | > 2.7 k Ohms | ||||||||||||
Input limiter | Soft limiter, 30 dB range | ||||||||||||
Bias voltages | Selectable; 2V, 4V and Off | ||||||||||||
Gain control range | 44 dB; panel mounted membrane switches | ||||||||||||
Modulation indicators | Dual bicolor LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation | ||||||||||||
Controls | Control panel with LCD and four membrane switches | ||||||||||||
Low frequency roll-off | Adjustable from 35 to 150 Hz | ||||||||||||
Audio Frequency Response | 35 Hz to 20 kHz, +/-1 dB | ||||||||||||
Signal to Noise Ratio (dB): (overall system, 400 Series mode) | |||||||||||||
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Note: the dual envelope "soft" limiter provides exceptionally good handling of transients using variable attack and release time constants. The gradual onset of limiting in the design begins below full modulation, which reduces the measured figure for SNR without limiting by 4.5 dB | |||||||||||||
Total Harmonic Distortion | 0.2% typical (400 Series mode) | ||||||||||||
Audio Input Jack | 2.5 mm locking micro; threaded for stainless sleeve on WP connector | ||||||||||||
Antenna | Flexible, unbreakable steel cable. | ||||||||||||
Batteries | 1.5 Volt AA lithium 50 mW (2 AA): 13:00 100 mW (2 AA): 10:45 250 mW (2 AA): 5:45 | ||||||||||||
Weight | 5.33 oz. (151 grams) with lithium batteries | ||||||||||||
Housing Dimensions | 2.98 x 2.55 x 0.77 inches 75.7 x 64.8 x 19.6 mm (including battery caps) | ||||||||||||
Emission Designator | 180KF3E |
Specifications subject to change without notice
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