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The transmitter features O-ring sealed battery compartments and input jack, a compression-sealed antenna port, and gasket-sealed control panel and back cover, making it resistant to dust and water intrusion.
The selectable output power of 50, 100, and 250 mW allows you to balance between extended operating range and battery life. Higher power output improves operating range but reduces battery life, and vice versa.
The DSP-controlled analog audio limiter provides a range of more than 30 dB for excellent overload protection. It is acoustically transparent, maintaining low distortion while preserving short-term dynamic changes.
Yes, the transmitter is backward compatible with Lectrosonics 200 and 100 Series and IFB receivers, and also compatible with some other brands of analog wireless receivers.
The RF isolator allows RF signals to pass through to the antenna, but blocks them from coming backward into the transmitter output section. This reduces RF inter-modulation when multiple units are used in close proximity and protects the output stage from electrostatic shock.
Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, 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 purchase Internationally or in U.S. Territories.
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100 kHz
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 32 kHz; 5 kHz deviation (in 400 Series Hybrid Mode)
+/- 0.002%
+/- 75 kHz max. (in 400 Series Mode)
60dB below carrier
-125 dBV, A-weighted
0.5 mV to 50 mV before limiting.
Greater than 1 V with limiting.
1.7 uA to 170 uA before limiting.
Greater than 5000 uA (5 mA) with limiting
17 mV to 1.7 V before limiting.
Greater than 5 V with limiting.
300 Ohms
Input is virtual ground with servo adjusted constant current bias
> 2.7 kOhms
Soft limiter, 30 dB range
Selectable; 2V, 4V and Of
44 dB; panel mounted membrane switches
Dual bicolor LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
Control panel with LCD and four membrane switches
Adjustable from 35 to 150 Hz
35 Hz to 20 kHz, +/-1 dB
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
50 mW (2 AA): 14.5 hrs
100 mW (2 AA): 14 hrs
250 mW (2 AA): 7.5 hrs
Housing: 2.98 x 2.55 x 0.77" / 75.69 x 64.77 x 19.55mm (including battery caps)
5.33oz / 151.10g (with lithium batteries)
Experience the superior performance of the Lectrosonics WM Watertight Belt-Pack Transmitter with MIC, specifically engineered for challenging environments. This robust transmitter is ideal for use in wet or dusty conditions, thanks to its O-ring sealed battery compartments and input jack, compression-sealed antenna port, and gasket-sealed control panel and back cover.
Powered by dual AA batteries, this transmitter offers double the operating time of previous watertight models. It features larger membrane switches and a control panel, along with a backlit LCD for enhanced user interaction. The transmitter provides selectable output power of 50, 100, and 250 mW, allowing you to balance between extended operating range and battery life based on your specific needs.
The WM transmitter is equipped with a DSP-based design that is compatible with all Digital Hybrid receivers, and is backward compatible with Lectrosonics 200 and 100 Series and IFB receivers, as well as some other brands of analog wireless receivers. The input section boasts servo bias circuitry, with selectable voltages from the LCD to cater to a wide variety of lavaliere microphones.
This transmitter also features a DSP-controlled analog audio limiter, offering a range of more than 30 dB for superior overload protection. The limiter is acoustically transparent, maintaining low distortion while preserving short-term dynamic changes.
The WM transmitter's watertight connections ensure the microphone connector's O-ring is securely seated, and the antenna is mounted with a compressible strain relief for a watertight connection. The DSP-generated pilot tone eliminates the need for fragile crystals and reduces squelch problems in multichannel systems.
The transmitter's RF output circuit includes a specialized RF isolator that allows RF signals to pass through to the antenna, but blocks them from coming backward into the transmitter output section. This feature reduces RF inter-modulation when multiple units are used in close proximity and protects the output stage from electrostatic shock.
With its machined aluminum, corrosion-resistant housing, water-resistant seals, and LCD interface with lockout option, the Lectrosonics WM Watertight Belt-Pack Transmitter with MIC is a reliable choice for demanding environments. Its programmable compatibility modes and servo bias input circuitry with selectable voltage make it versatile for use with a wide range of different receivers.