Wireless Microphones Technology Showcase
May 13, 2011 4:50 PM, by Mark Johnson
The Electro-Voice R300 offers 32 preset channels, with compatible groups of eight channels for simultaneous use. The R300 operates in the A, B, and C bands (618MHz through 634MHz, 678MHz through 694MHz, and 850MHz through 865MHz, respectively). The system features ClearScan to locate the clearest available channel and EZsync infrared channel transfer from receiver to transmitter. Battery life is 14 hours from two AA batteries.
Lectrosonics’ Venue Receiver is a 6-channel modular receiver fits up to six VRS or VRT modules. It features Digital Hybrid Wireless technology, DSP emulation for compatibility with analog wireless systems, and USB and RS-232 computer interface. Lectrosonics offers multiple belt-pack transmitters as well as the UT handheld transmitter and HM plug-on transmitter.
Line 6’s solution to the crowded TV bands is the XD-V70 system that operates in the 2.4GHz ISM band. The system features simultaneous use of 12 user-selectable channels. Battery life with two AA batteries is 8 hours on high-power mode and 10 hours on low-power mode. The handheld transmitter also offers modeling of seven different microphones as well as the ability to accept certain thirdparty mic capsules.
The Mipro Act-7 series comes in single, dual, or quad receiver systems, which feature Mipro’s AutoScan and Automatic Channel Targeting (ACT). The system provides the ability to select and save 16 used-defined presets from up to 2,881 frequencies. Computer set up, control, and monitoring are provided via Mipro RCS27 software. The system uses the ACT-7Ha handheld and the ACT-7Ta body-pack transmitters.
The 2W-1KU wireless system from Nady provides two independent UHF receivers delivering 1000 user-selectable channels apiece. The system operates in Band 1 (672MHz through 696.975MHz), and it features Auto-Scan for locating clear channels and Auto-Sync Channel (ASC ) to send group/channel information to the transmitter via IR.
The Revolabs HD Venue wireless microphone system operating frequency range is 1.92GHz through 1.93GHz, outside the TV bands. Each system is two channels with a maximum capability of four channels in a given area. Microphone options include XLR adapter for a handheld, tabletop, wearable, and Countryman earset adapter. The approximate range is 300ft. The rechargeable lithium polymer batteries provide up to 8 hours of operation.
Another system operating in the ISM 2.4GHz band is the Sabine SWM7000 series series featuring Smart Spectrum, which enables up to 70 simultaneous users. The transmitters can use either AA alkaline or rechargeable NiMH batteries. Mic SuperModeling provides a library of virtual capsules that model the sounds of other microphones. The system also features FBX Feedback Exterminator, parametric EQ filters, a compressor/limiter, and an adaptive de-esser.
Samson’s AirLine Micro earset wireless system features the micro-size AH2 transmitter and AR2 receiver. The transmitter is self-contained in the earset, which uses an omnidirectional mic. The receiver (2.36”x1.67”x.51”) uses a rechargeable lithium-ion battery, and the AR2 dock also serves as a charger. Both the transmitter and the receiver use a USB DC input for power and recharging.
The ew 512 G3 presentation set from Sennheiser features an Ethernet port for external computer monitoring and control. Also featured are 20 channel banks and six user banks, each with 32 factory-preset channels. The system includes an integrated equalizer. The SK 500 G3 bodypack transmitter comes outfitted with an MKE 2-ew Gold omnidirectional microphone.
Shure’s UHF-R Wireless System is capable of simultaneous use of up to 160 compatible systems. Features include IR synchronization that allows configuration of transmitter settings from the receiver and auto frequency selection/scan to locate clear channels. The system includes an RJ-45 port for connection to an Ethernet network for system setup, monitoring, and control.
The Sony DWX digital wireless system features the Cross Remote Monitor/Control function, which allows up to 82 transmitters to be managed. It uses Sony’s WiDIF-HP wireless interface. The system is composed of the DWM-01 mic, DWR-R01D receiver, RMU-01 remote control unit, and AN-01 UHF antenna.
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