Wisycom and Semafor WISYCOM PRESENTATION PRODUCTS OVERVIEW RF DISTRIBUTION RF OVER FIBRE NEW TECHNOLOGIES Monitor Roadshow 2019 OCTOBER 2019 Björn Zabell
Wisycom presentation Wisycom designs, produces and shares experience and know-how. With more than 30 years of experience in RF technology Wisycom is recognized as one of the main player in the worldwide market of Audio equipment for Broadcast, Live and Location Sound applications. Production All Wisycom products are 100% Made in Italy, synonymous of reliability, flexibility and careful quality control on each product. Research & Development Focused on innovation and best quality Wisycom’s team of engineers design the most sophisticated RF solutions for microphones, IFB and reportage system using the latest technological instruments and the most advanced software. Customer Service International TV, Radio broadcasters, Audio operators and Sound engineers can find in Wisycom team a true partner ready to offer worldwide constant presence and support for the realization of any project.
Wisycom presentation WHERE CAN WISYCOM BE FOUND? BIG SPORT EVENTS OUTDOOR AND ENG STUDIO BROADCAST RF DISTRIBUTION LIVE SHOWS LOCATION SOUND
Spectrum evolution WHY ULTRAWIDE BANDWIDTH? The reason is simple: Digital Dividend, 4G and in future 5G are progressively reducing the UHF spectrum available for radio-microphones. It’s not a secret that the 700-800MHz band will be totally gone in the close future and we do expect the 5G to be reduced too in EU as well as it is, for example in USA. This make the market asking for more flexible device and here is where Wisycom steps in. EUROPE 2010/2014 DVB T2? 2017/2020 790/840 MHz Further channel squeezing for 4k? 700/790 MHz Single Frequency Network (SFN) USA 2014 AUCTION 2010/2014 DVB T2? Effective 700/800 Further channel squeezing for 4k? 2016 MHz Single Frequency Network (SFN)? 600/700 MHz Working smoothly in those present/future spectrum scenarios, is therefore one essential feature for the newest wireless systems: Main technical parameters involved are related to: ü Bandwidth agility (capability of wide-tuning) ü Spectral efficiency (width of my modulation or minimum channel spacing) ü Spectral clean (capability of generate low intermodulation)
Wireless Audio Requirements SUMMARIZING FUTURE TV SHRINKING WILL: REDUCE WIRELESS MIC MUST BE USE LESS BANDWIDTH BAND AVAILABLE FOR WIRELESS MIC WIRELESS MIC MUST BE INCREASE MORE ROBUST TV SIGNAL LEVELS TO INTERFERENCES & INTERFERENCES
Spectrum evolution NARROWBAND TRANSMISSION Wisycom offers different options to be as most efficient as possible RF wise, optimizing it’s carriers by reducing the band occupation and being able of fitting a huge number of transmitters in a smaller amount of space. This new narrowband technology allow the user to have only 200KHz of separation between the two carriers, compared to the 400Khz that we’re used to with wide band analogue and 500 to 600KHz for the average digital system. All this, moreover, is done without loosing any sensitive audio quality as the audio is incredibly linear up to 17KHz. Digital MIC (500/600 kHz ch. spacing) FM & “DSP Enhanced FM” MIC (300/400 kHz ch. spacing) “Narrowband DSP Enhanced FM” MIC (200/250 kHz ch. spacing) 200 kHz 100 kHz
Spectrum evolution MINIMUM RX LEVEL TO WORK • On the right figure, the spectrum of 3 couples of microphones WITH DIFFERENT TECHNOLOGIES & 15 dbuV of noise (RBW 200kHz) using different modulation. • Level is the minimum level that system allows to work (i.e. you RF squelch). DIGITAL Average digital system 30 dBuV needs at least 13 dB S/N, of distance from noise level 25 dBuV 12/15 dB Wisycom analogue Wideband 6dB System robusteness: 20 dBuV “ Narrowband-dsp-FM” is at least 15 dB more robust than Digital” and 3 dB more robust than legacy FM. 6 dB Narrowband DSP-FM 15 dBuV Channel Noise (*) 10 dBuV 300/350 kHz 500/600 kHz 200/250 kHz 15 dBuV could be a good example of noise on a TV channel Filter area under the noise level is after the 700 MHz shitch off: the actual internal system à Under this condition coverage will be heavily reduced and 15 interference. Wider bandwidth brings to an higher dB of extra margin will be very important for medium to big internal noise. installations (i.e. theater, studios). Digital Mic have about 1/2 dB more noise than an FM system. standard FM has about 3/4 dB more noise than Narrowband DSP FM.
MRK980 MRK980 TRUE DIVERSITY DUAL RECEIVER Wisycom MRK980 is a true diversity, ultra-wideband dual channel receiver. With its 1090MHz of band switching, it ensures the users an exceptional band flexibility, combined with a superb selectivity and inter-modulation immunity, for best operating performances of the wireless microphone systems. MRK980 also features an internal DSP processor, Wisycom famous Multicompanding system, new Dante compatibility and a completely and renewed user interface, which make this system easy and quick to setup. MAIN FEATURES • Two channels True Diversity receiver (full DSP processed) • Up to 1090 MHz bandwidth from 170MHz to 1160Mhz • Push to talk ( PTT ) incorporated • Multicompander system • Dante machine syncronized • Wideband and Narrowband DSP-FM operation • Expansion boards slot for RFoF and monitor functions
MRK980 – Expansion Board EXP1 EXP1 EXP1 is an optional accessory which can be mounted on MRK980 dual channel receiver. This expansion board enables three different features: • Zoning signal distribution This new board transform the • External monitoring MRK980 into a customizable and cascade incredibly versatile receiver, with • Two GP OUT several unique options. EXTERNAL MONITORING CASCADE The external audio monitoring function allows several Unit 1 MRK980 to be connected in cascade through the “Monitor I/O”, in order to enable an additional Unit 2 auxiliary audio output common to all receivers. Unit 3 Activated by a front panel button, it allows an Unit 4 additional audio monitoring interface to be obtained, in addition to the standard headphones output: this auxiliary slot consists of two mini XLR 5 pins: 1 IN, 1 SELECT OUT. AUDIO SOURCE
MRK980 – Expansion Board EXP1 ZONING (OR N DIVERSITY) The Zoning (or N Diversity) signal distribution function consists of connecting different MRK980 receiver audio outputs in cascade. These receivers are all tuned to the same frequencies and connected through 3 pin XLR connectors. This type of configuration results in having the audio signal shared between the MRKs, so it’s analyzed by the receivers and the one with the best quality signal will be picked to send the audio out. In the example below we have three different zones (3x A / B antennas) connected to three distinct MRK980s. The receivers, in turn, are connected to each other through the expansion board auxiliary audio outputs. In the “master” receiver Main audio output (Unit 3) we will have the best audio signal resulting from the comparison of the three MRK980s in relation to the areas of use. A1 – B1 Unit 2 A1 – B1 Unit 1 Unit 1 A1 – B1 Unit 3 Unit 2 Unit 3
MRK980 – Expansion Board EXP2 EXP2 EXP2 is an optional accessory which can be mounted on MRK980 dual channel receiver. This expansion board enables three different features: • Zoning I/O • External monitoring cascade • RF over Fiber Rx modules RF OVER FIBER MODULES MFL TT-- These two wideband receiving optical modules allow MRK980 – EXP2 Antenna A the MRK980 to receive RF over fiber signals from a source like Wisycom MFL and open the door to a completely new way of receiving antennas signals from further areas. This implementation massively enlarge the MRK980 reception possibilities by allowing to replace the regular coax cable with optical Antenna B patches which have an average loss of 0.4dB per Km only!
LINEAR series & channel density TRANSMITTERS RECEIVERS MTP40S MTB40S MPR50 - IEM MPR52 - ENG LINEAR MTH410 • 230 Mhz of Bandswitching • 790 Mhz of Bandswitching • 232 Mhz of Bandswitching • 2400 preloaded frequencies • 2400 preloaded frequencies • 2400 preloaded frequencies • Stereo channel true diversity • Dual channel atnenna diversity • LINEAR technology Receiver Receiver • Up to 100mW RF power • USB connection • USB connection • Up to 14 hours of battery life • Up to 6 hours of battery life • Up to 6 hours of battery life
MAT288 Matrix/Combiner MAT288 is a unique device able to select and combine radiofrequency feeds in a matrix of up to 8 diversity inputs. It allows your control room to smoothly select one or more studio to work with! MAIN FEATURES • Diversity combiner 8:1 or 8:4 or 2 x 4:2 (sw configurable) • Wide bandwidth 150-840 MHz operation • Redundant power supply, AC and DC powered • Remote management and monitor of alarms thru Ethernet 10/100 base TX • Antenna booster supply toggled on each input independently • Voltage and current monitoring on each booster supply with alarm • Programmable attenuators on each inputs • Remote boost control (for gain/bandwidth) with a bidirectional data link thru coax (input BNCs) • light window where the user can enter their own text to identify the 8 areas
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