LD goes wireless for conferencing

LD Systems has differentiated the three variants in its U500 series of 4-channel wireless conferencing systems by the frequency range they have been created for. The U505 CS 4 functions at 554MHz to 586MHz, the U506 CS 4 works in the 662MHz to 694MHz band, while the U508 CS 4 operates in the 823MHz to 832MHz and 863MHz to 865MHz ranges.

While the frequency ranges differ, the rest of the specifications are identical across the series. Each variant offers automatic channel search, automatic frequency search, infra-red frequency synchronisation of receiver and microphone unit, pilot tone and priority switching. In addition, the sets offer security locks and RS-232 interfaces for integration into external control systems, as well as an audio transmission range from 60Hz to 16kHz.

With a selectable 130Hz high-pass filter, the mic units feature a gooseneck condenser microphone with hypercardioid pick-up pattern and an illuminated status ring. The base offers an OLED display to show the configuration. Meanwhile, the OLED display on the receiver provides an overview of audio and radio signal strength and priority, as well as the battery status of the terminals. The receiver can also be used to configure the number of simultaneously live microphones, while it also offers selectable automatic or manual gate setting and pilot tone.

The system can be expanded to include up to five cascaded U500 receivers, operated in master-slave mode. As such, a maximum of 20 terminals can be used, depending on the availability of frequency ranges.

www.ld-systems.com