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User manual for Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21
- Manufacturer: Lectrosonics
- Basic description and contents of package
- Product classification: Pro Audio - Location Sound - Wireless Transmitters
- Safety instructions
- Startup and operation of the wireless transmitters
- Tips for setting up your Lectrosonics
- Settings and expert assistance
- Contact Lectrosonics service
- Troubleshooting
- Warranty information
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We recommend checking out our discussion threads on the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21,
which address similar problems with connecting and setting up Wireless Transmitters Lectrosonics.
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User manual for the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21
The user manual for the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21 provides
necessary instructions for the proper use of the product Pro Audio - Location Sound - Wireless Transmitters.
The 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 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.
Lectrosonics patented Digital Hybrid technology revolutionizes wireless microphone transmission. Digital audio signal is converted and encoded for analog transmission, then decoded and converted back to digital audio at the receiver. The result is an exceptionally low noise floor with clear audio reception retained at greater distances. To meet the demand for both extended operating range and extended battery life, the WM transmitters offer selectable output power of 50, 100 or 250 mW.
The WM transmitter is made of solid, machined aluminum housing with a corrosion-resistant finish. The moisture-sealed control panel has a backlit LCD and enlarged membrane switches. The antenna is made of an extremely durable, multistrand alloy that will withstand heavy abuse. It is mounted with a compression sealed strain relief that prevents dust and moisture from entering the housing.
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If you own a Lectrosonics wireless transmitters and have a user manual in electronic form,
you can upload it to this website using the link on the right side of the screen.
You can upload and download the manual for the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21 in the following formats:
- *.pdf, *.doc, *.txt, *.jpg - Other formats are unfortunately not supported.
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Additional parameters of the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21:
| Operating Frequency | 537.600 - 563.100 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
SmartNR Full | | 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 | |
The user manual for the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21 can be downloaded in .pdf
format if it did not come with your new wireless transmitters, although the seller is
required to supply one. It is also quite common that customers throw out
the user manual with the box, or put the CD away somewhere and then can’t find it.
That’s why we and other Lectrosonics users keep a unique electronic library
for Lectrosonics wireless transmitterss,
where you can use our link to download the user manual for the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21.
The user manual lists all of the functions of the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21,
all the basic and advanced features and tells you how to use the wireless transmitters.
The manual also provides troubleshooting for common problems. Even greater
detail is provided by the service manual, which is not typically shipped with the product,
but which can often be downloaded from Lectrosonics service.
If you want to help expand our database, you can upload a link to this website
to download a user manual or service manual, ideally in .pdf format. These pages
are created by you – users of the Lectrosonics WM Watertight Wireless Microphone Transmitter WM-21. User manuals are also
available on the Lectrosonics website under Pro Audio - Location Sound - Wireless Transmitters.
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