Dual-channel diversity receivers from Lectrosonics
With the introduction of the SRB and SRB5P (domestic) and SRB/E01, SRB5P/E01 (export) two-channel slot-mount digital hybrid wireless diversity receivers , Lectrosonics is addressing applications that require a high channel count, such as reality TV productions.
The new receivers offer two independent channels and fit into the standard video camera slots found on slot-equipped professional cameras such as those from Panasonic and Ikegami (SRB and SRB/E01) and Sony (SRB5P and SR5P/E01) by using the appropriate optional mounting kits. The two audio channels can feed separate inputs or can be mixed internally to feed a single input.
The SRB family of receivers includes a newly designed receiver front end with a more robust RF amplifier stage and tighter IF filtering, which offer significant performance enhancements over previous designs, including better immunity to adjacent channel interference and increased sensitivity.
A talkback feature is also included in the new receivers to work in conjunction with the HH handheld microphone transmitter. Two diversity modes are offered in the SRB family, and SmartDiversity reception is employed by combining antenna phase for each independent receiver channel. Alternately, the two channels can be used together as a single receiver in ‘True Diversity’ Ratio mode for enhanced performance in some environments.
The two independent digital hybrid wireless receivers inside the SRB series units offer 256 frequencies each in a wide variety of available frequency blocks, and operate with any of the Lectrosonics’ 400 Series transmitters without a compandor in the audio path. In addition, compatibility modes also facilitate operation with Lectrosonics’ 100 Series, 200 Series, and IFB analogue systems, along with analogue transmitters from two other manufacturers.
While mounted in a camera slot, the SRB family are splash resistant due to sealed membrane switches and LCD, along with a special gasket covering the slot opening. The receivers can also be mounted outside cameras using an optional kit, powered from external DC, and providing two locking mini-XLR analogue audio outputs.