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Lectrosonics reveals next-gen digital receiver

Lectrosonics reveals next-gen digital receiver

Lectrosonics reveals next-gen digital receiver

The DCR822 tunes across 144MHz (A1B1 version) or 155MHz (B1C1 version)

With the introduction of the DCR822 dual-channel portable receiver, Lectrosonics aims to build on the benchmark digital RF and audio performance features set by the legacy UCR411a. Designed for field and location production, the compact receiver is compatible with all the current Lectrosonics mono and stereo digital transmitters, in addition to being backward compatible with any of the Digital Hybrid Wireless transmitters manufactured since 2002.

Equipped with two independent receiver channels, the DCR822 tunes across 144MHz (A1B1 version) or 155MHz (B1C1 version), with over 6,000 frequency choices. Ideal for use in portable bag systems and on sound carts, settings can be adjusted using tactile buttons and a high-resolution LCD interface on the front panel. To overcome interference problems, an RF spectrum analyser and SmartTune are built into the receiver and a two-way IR sync hastens the setting up of matching transmitters. The new receiver includes a USB jack on the back panel for connectivity with the Lectrosonics Wireless Designer software for frequency coordination and RF system monitoring.

The RF gain stages in the front end use a newly developed design to provide low noise RF amplification and extremely low susceptibility to intermodulation with an IP3 (3rd Order Intercept point) of +15dBm. The DCR822’s Vector Diversity subsystem continuously combines RF signals from two receiver front ends per channel with differing phase angles to obtain maximum energy. This delivers artefact-free performance in all modes and can take transmissions compromised by multipath interference and reassemble them into solid signals. Along with Vector Diversity on each receiver channel, the two channels can be used together for a single Frequency Diversity channel operating on two different frequencies for full redundancy.

The mechanical design of the receiver fits into the same dimensions as the UCR411A, allowing existing mounts to be used. To decrease weight, the new receiver provides two independent channel receivers in one unit powered by four AA Lithium batteries or external DC. The receiver is also equipped with a microSD card slot for data transfer, such as firmware updates and frequency group information. The machined aluminium housing and panels are surfaced with a hard-anodised finish with laser etched markings to withstand the rigours of field production. Audio outputs are via two locking TA3M connectors with either analogue mic/line level or AES3 digital outputs selectable in the menu. The DCR822 can record audio channels directly from the receivers onto the card in the industry standard .wav (BWF) file format at 24-bits/48kHz for compatibility with any AV editing software.



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