{"product_id":"srb-e01-27","title":"SRB\/E01-27","description":"\u003ch2\u003eLectrosonics SRB\/E01-27 Dual-Channel, Camera Slot-Mount Mic Receivers (Block 27) 691.200 - 716.700 MHz\u003c\/h2\u003e\n\u003cp\u003eThe \u003cb\u003eLectrosonics SRb Camera Slot UHF Receiver (Block 27)\u003c\/b\u003e is a two-channel slot-mount Digital Hybrid Wireless diversity receiver that supports 691.200 - 716.700 MHz operating frequencies. The SRb receiver offers two independent channels and fits into the standard video camera slots found on professional cameras. The two audio channels can feed separate inputs or can be mixed internally to feed a single input. Plus, a DSP compatibility mode allows the SRb to be used with Lectrosonics IFB transmitters.\u003c\/p\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eDigital Hybrid Wireless\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eDigital Hybrid Wireless is a design that combines digital audio with an analog FM radio link to provide both high audio quality and noise-free RF performance. Using a patented algorithm to encode 24-bit digital audio information in the transmitter into an analog format, the encoded signal is then transmitted over an analog FM wireless link. At the receiver, the signal is then decoded to restore the original digital audio. This process eliminates compandor artifacts and produces an audio frequency response flat to 20 kHz.\u003c\/div\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eRF Front-End \u0026amp; Mixer\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eEach antenna signal is first passed through a high quality SAW filter to reject high power RF signals above and below the operating frequency. A high current amplifier follows the SAW filters and passes the signal to an internal splitter so that both antenna signals are available to both receivers for SmartDiversity reception.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eSmart Noise Reduction (SmartNR)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe wide dynamic range of digital hybrid technology with a flat response to 20 kHz makes it possible to hear the -120 dBV noise floor in the mic preamp, or the (usually) greater noise from the microphone itself. To put this in perspective, the noise generated by the recommended 4k bias resistor of many electret lavaliere mics is -119 dBV and the noise level of the microphone's electronics is even higher. In order to reduce this noise a Smart Noise Reduction algorithm is used to remove hiss without sacrificing audio high frequency response. The SmartNR algorithm preserves the transparency of the audio signal. Plus, desired high frequency signals are not affected. The SmartNR algorithm has three modes, selectable from a user setup screen. The optimal setting for each application is subjective and selected while simply listening.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eSAW Filters\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe first IF stage at 244 MHz employs two state-of-the-art SAW (surface acoustic wave) filters that increase depth of filtering while preserving sharp skirts, constant group delay and wide bandwidth. This type of filter allows early primary filtering at a high frequency, before high gain is applied, to deliver maximum image rejection. The filters are made of quartz as well, which makes them very temperature stable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eIF Amplifiers\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eAfter the SAW filter, the 244 MHz IF signal is converted to 250 kHz in receiver 1 and 350 kHz in receiver 2. Only then is the majority of the gain applied, just before the signal is converted to audio. Although these IF frequencies are unconventional in a wide deviation (±75 kHz) system, they offer outstanding AM rejection over a wide range of signal strengths and they support noise improvement at low signal strengths.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eDigital Pulse Counting Detector\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe SRb Series receivers use a simple, yet effective digital pulse detector to demodulate the FM signal rather than a conventional quadrature detector. This eliminates thermal drift, improves AM rejection and provides very low audio distortion.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eSupersonic Noise-Based Dynamic Filter \u0026amp; Squelch\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eIn addition to SmartNR, all hybrid receivers are equipped with a supersonic noise-based dynamic filter and squelch system. The incoming audio is monitored for energy above 22 kHz, pilot tone excepted. Excessive high frequency energy indicates that the received signal is too weak to achieve an acceptable signal-to-noise ratio. Under marginal conditions, a variable low pass filter is rolled in dynamically, masking the noise while preserving as much of the transmitted signal as possible. When the channel is too noisy even for the filter, the audio is squelched. Plus, unlike analog squelching, this noise-based system requires no calibration and there is no better way to track the signal-to-noise ratio than to measure it directly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eSmart Squelch\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe SRb Series receivers are designed to remove distracting noise without the squelching action itself becoming a distraction. They use a technique that waits for a word or syllable to be completed before squelching. Another technique incorporates recent squelching history and recent signal strength, adjusting squelching behavior dynamically for the most serviceable result under variable conditions. Using these and other techniques, the receivers can deliver acceptable audio quality from otherwise unusable signals.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eTalkback Function\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe Talkback function provides a second audio channel separate from the main audio channel to allow the user to communicate with staff and crew. When the button on the housing is pressed, the audio output on the receiver is switched to a different output jack. When the button is released, the audio output returns to the main output jack on the receiver.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"featureHeader_UbV5SNP5Eo\"\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle2_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eAutomatic Power State Restoration\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"js-injected-html text_UbV5SNP5Eo\"\u003eThe firmware \"remembers\" whether it was turned on or off when power is disconnected and returns to that state when power is restored.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Lectrosonics","offers":[{"title":"Default Title","offer_id":53541631066445,"sku":"7234","price":1869.17,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/6875\/1793\/files\/1350039150_894303.jpg?v=1773666222","url":"https:\/\/shop.promedia.ee\/et\/products\/srb-e01-27","provider":"Promedia","version":"1.0","type":"link"}