Watertight Wireless Microphone Transmitter with M152/WP Lavalier Mic

By: Lectrosonics

Wireless Microphones & Audio Processors

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Lectrosonics : LECTROSONICS WM

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Description

The LECTROSONICS WM Watertight Wireless Microphone Transmitter by Lectrosonics is designed to operate in wet or dusty environments. The WM resists damage in harsh environments, but also offers a comprehensive feature set that makes it equally at home in film, television, and on stage.

The LECTROSONICS WM‘s input preamp is built of very high quality, low noise components with a wide gain range. The DSP-controlled input limiter has a range of more than 30 dB and a dual-release envelope, making it transparent while maintaining low distortion. Dual-color LEDs on the control panel accurately indicate audio input level for precise gain adjustment.

Features

LECTROSONICS WM features include:

Frequency Block 25
Water Resistant Seals
Digital Hybrid Wireless Technology
Variable, Selectable Power Output
256 Synthesized UHF Frequencies
Servo Bias Input with Selectable Voltage
Corrosion-Resistant Aluminum Housing
Compatibility Modes for Versatile Usage
LCD Interface with Lockout Option
Lasts Over 14hrs on Lithium AA Batteries

Specifications

Operating Frequency	640.000 - 665.500 MHz
Channel Spacing	100 kHz
Frequency Selection	Control panel mounted membrane switches
RF Power Output	Switchable; 50, 100 or 250 mW
Compatibility Modes	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 Emission	60 dB below carrier
Equivalent Input Noise	-125 dBV, A-weighted
Input Level	Dynamic mic: 0.5 mV to 50 mV before limiting; greater than 1 V with limiting Electret lavaliere mic: 1.7 uA to 170 uA before limiting; greater than 5000 uA (5 mA) with limiting Line level input: 17 mV to 1.7 V before limiting; greater than 5 V with limiting
Input Impedance	Dynamic mic: 300 Ohms Electret lavaliere: Input is virtual ground with servo adjusted constant current bias Line level: > 2.7 k Ohms
Limiter	Soft limiter, 30 dB range
Bias Voltage(s)	Selectable; 2V, 4V and Off
Gain Range	44 dB; panel mounted membrane switches
Modulation	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	SmartNR Off no limiting: 103.5 dB limiting: 108.0 dB SmartNR Normal 107.0 dB 111.5 dB SmartNR Full 108.5 dB 113.0 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	Two 1.5 Volt AA lithium
Battery Life	50 mW: 14.5 hrs 100 mW: 14 hrs 250 mW: 7.5 hrs
Emission Standard	180KF3E
Dimensions	2.98 x 2.55 x 0.77" (75.7 x 64.8 x 19.6 mm)
Weight	5.33 oz (151 g) with lithium batteries