Lectrosonics SMQV Belt-Pack Transmitter

Description

The SM Series family brings Digital Hybrid Wireless® technology to miniature transmitters in several different configurations for essentially any wireless microphone application with a lavalier microphone. The dual battery SMQV model uniquely offers variable output power, allowing you to adjust the output power from 50, 100 or 250 milliwatts depending on your application and the need to conserve battery life. The available accessory RM, provides hands-free remote control for all three models. Switching power supplies throughout the design allow long battery life with NiMH batteries.

Setup and control is simplified with membrane switches and an LCD interface. Multiple functions are clearly marked on the panel, with on-screen prompts on the LCD as reminders when another switch must be held or the selection is locked out. The innovative servo bias input on the standard 5-pin connector provides a programmable, regulated voltage to accommodate a wide variety of electret microphones. Two bicolor LEDs make adjusting input levels for proper modulation easy and accurate.
Also included in the design of the SMQV is a pressure equalization membrane in the battery door to allow venting of pressure when heated and avoids a vacuum created when cooling, which could draw in moisture. Also new is the addition of a variable high pass filter at 6 settings from 35 to 150 Hz.

The splash-proof housing is machined out of a single block of aluminum, which is then plated with a super hard, non-corrosive coating. The SM Series transmitters are equally at home in theatre, television and film where temperature and environmental extremes require superior performance under the most demanding conditions.

Features:

• Digital Hybrid Wireless® Technology*
• Membrane switch control panel with LCD display
• 256 synthesized UHF frequencies
• 50,100 or 250mW* output power
• Wide input dynamic range
• DSP based pilot-tone signal
• Circulator/Isolator output stage
• Splash-proof, machined aluminum housing
• Non-corrosive, super hard finish
• Pressure equalization membrane

* 250mW is unavailable in the 941.525 to 959.825 MHz frequency band

*Digital Hybrid Wireless™ is a revolutionary new design that combines 24-bit digital audio with an analog FM radio link to provide outstanding audio quality and the extended operating range of the best analog wireless systems. The design overcomes channel noise in a dramatically new way, digitally encoding the audio bitstream in the transmitter and decoding it in the receiver, yet sending the encoded information via an analog FM wireless link. This proprietary DSP algorithm eliminates a compandor circuit and its artifacts, and preserves the RF spectral footprint of analog FM designs to simplify multi-channel coordination with exisiting analog wireless systems.