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Sennheiser’s G3 portable transmitters can operate for up to 8 hours on a pair of AA batteries. Audio
and RF transmission quality is never compromised as batteries run down, thanks to dedicated
circuitry that maintains a constant internal system voltage. G3 transmitters also relay battery
strength to their receivers, allowing sound engineers to remotely monitor battery life at a glance. G3
handheld and bodypack transmitters also feature external charging contacts, for use with optional
BA 2015 rechargeable battery packs and the L 2015 charging station.
The Receiver
The heart of every wireless system, the receiver is designed to pick up an RF signal sent from
the transmitter, convert it back into an audio signal, and output it for mixing, recording, and
amplification.
There are two basic types of wireless receivers:
1) Fixed (rack-mount) receivers
The most common version, G3 series fixed receivers (EM 100 G3, EM 300 G3, and EM 500 G3)
are compact, half-rack sized units which can be mounted in standard 19” equipment racks using
the optional GA3 rack-mount adapter. Sennheiser employs True Diversity antenna technology
in its G3 rack-mount receivers, to ensure the most stable, uninterrupted wireless reception.
True Diversity receivers contain two independent tuning modules and a comparison circuit
that continuously routes the stronger signal to the receiver’s output. Put simply, True Diversity
maximizes system reliability.
2) Portable (camera-mount) receivers
Portable receivers are used in film, television, and video applications to wirelessly feed audio
into a video camera or other portable recording device. The EK 100 G3 portable camera-mount
receiver is compact, lightweight, battery-powered, and can mount directly onto a wide variety
of motion-picture or video cameras which have a standard shoe mount. Adaptive Diversity
antenna technology is featured on evolution wireless G3 portable receivers to increase stability.
In Adaptive Diversity, the receiver utilizes the output cable as a secondary antenna, enhancing
reception and reducing dropouts.
G3 Rack-mountable Receiver G3 Portable Receiver