
This item is no longer available.
Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
Browse our FAQ
Block 470 (470.100 - 495.600MHz)
100kHz
Control panel mounted membrane switches
Switchable; 50, 100 or 250 mW
Digital Hybrid Wireless (400 Series), 200 Series, 100 Series, Mode 3 , Mode 6, IFB
25 to 32kHz; 5kHz deviation (in 400 Series Mode)
+/-0.002%
+/-75kHz max. (in 400 Series Mode)
60dB below carrier
-120 dBV (A-weighted)
0.5 mV to 50 mV before limiting
Greater than 1 V with limiting
1.7 muA to 170 muA before limiting
Greater than 5000 muA (5 mA) with limiting (electret Mic)
17 mV to 1.7 V before limiting
Greater than 50 V with limiting
300Ohms
Input is virtual ground with servo adjusted constant current bias
>2.7kOhms
Soft limiter, 30dB range
Selectable 2 V, 4 V or Off
44dB; panel mounted membrane switches
Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation
Control panel with LCD and four membrane switches
Adjustable from 35 to 150Hz
35Hz to 20kHz, +/-1dB
Off: 103.5dB
Normal: 107.0dB
Full: 108.5dB
Off: 108.0dB
Normal: 115.0dB
Full: 113.0dB
0.2% typical (400 Series mode)
2.5 mm locking micro; threaded for stainless sleeve on WP connector
Flexible, unbreakable steel cable
1.5 Volt AA lithium
7.5 hrs Lithium (2 AA)
14 hrs Lithium (2 AA)
14.5 hrs Lithium (2 AA)
180KF3E
2.98 x 2.55 x 0.77" / 75.69 x 64.77 x 19.56mm (including battery caps)
5.33oz / 151.10g (with lithium battery)
Enhance your audio recording capabilities with the WM Watertight Wireless Belt-Pack Transmitter, coupled with the M152/WP Lavalier Microphone, designed to thrive in the most challenging wet or dusty environments. This robust transmitter is engineered with O-ring sealed battery compartments and input jack, a compression-sealed antenna port, and gasket-sealed control panel and back cover, ensuring durable and reliable performance even in the toughest conditions.
The WM transmitter is not only built to withstand the elements but also to deliver extended operating times with its dual AA battery configuration, offering twice the longevity of previous watertight transmitter models. The user experience is further refined with larger membrane switches, an intuitive control panel, and a highly visible, backlit LCD with a lockout option, all contributing to a seamless interface that professionals can rely on.
With selectable output power options of 50, 100, and 250 mW, users can optimize the balance between battery life and operating range, tailoring the transmitter's performance to the specific needs of each project. The machined aluminum housing is corrosion-resistant, adding to the transmitter's durability, while the water-resistant seals make it an ideal choice for use in wet environments.
The WM transmitter boasts a programmable compatibility mode, ensuring seamless integration with a wide variety of different receivers, enhancing its versatility. The innovative Servo Bias input circuitry, with selectable voltage from the LCD, caters to a diverse range of lavalier microphones, as well as dynamic microphones and line-level sources, providing high-quality audio transmission tailored to your equipment.
To ensure the highest audio fidelity, the transmitter features a DSP-controlled analog audio limiter with more than 30 dB of range, offering exceptional overload protection and maintaining low distortion. The dual release envelope of the limiter ensures acoustic transparency, preserving the natural dynamics of the audio signal.
The cutting-edge Digital Hybrid Wireless technology combines the best of digital audio with an analog FM radio link, delivering outstanding audio quality and the exemplary RF performance of top-tier analog wireless systems. This innovative approach eliminates compandor artifacts, expanding the potential applications of the transmitter to include the testing and measurement of acoustic spaces and musical instruments.
Watertight connections are a hallmark of this transmitter, with a recessed input connector that captures the O-ring on the microphone connector for a firm, watertight seal. The antenna is secured with a compressible strain relief under a flange, ensuring a watertight connection that stands up to the elements.
The transmitter's DSP-based pilot tone and compatibility features offer a new level of reliability in multichannel systems, reducing squelch problems and ensuring backward compatibility with all Lectrosonics IFB systems, 100/200 Series systems, and some analog receivers from other manufacturers.
For those operating multiple units in close proximity, the transmitter includes an output isolator to reduce RF intermodulation and protect the output stage from electrostatic shocks. This feature, often found in broadcast and commercial applications, underscores the professional-grade design of the WM transmitter.
Remote control capabilities are provided by the RM and RM2 remote control units, allowing hands-free setup and adjustment with audible tones. These remote units enable you to control audio input gain, frequency, lock or unlock modes, and sleep mode ON/OFF without disturbing talent or wardrobe, streamlining the production process.
In summary, the WM Watertight Wireless Belt-Pack Transmitter with M152/WP Lavalier Microphone, operating in Frequency Block 470 (470.100-495.600MHz), is the epitome of durability, high-quality, innovation, portability, and reliability. It is the perfect choice for professionals seeking a waterproof, high-performance audio solution for live events, ENG, film production, and more.