User Manual MRK960 User Manual Wideband True
Contents
1. gt Errors number of internal errors detected by the receiver useful for service or maintenance App release version of the main application firmware App bl release version of the main application firmware updater bootloader Netw release version of the network communication firmware Netw bl release version of the network communication firmware updater bootloader DSP release version of the DSP firmware Note the complete software and hardware status is displayed switching ON the receiver with a knob pressed Press this knob a second time to exit this function RF test This menu gives some information of the RF signal measured Note low level of Tsq mod means that the Tone squelch is not detected from the receiver Factory preset The FACTORY PRESET resets the following setups to factory defaults tone squelch OFF noise reduction system ENR audio output level 12dBu cal tone OFF audio matrix booster supply OFF and headphone selection OFF Note receiver names frequencies groups or channels information are NOT changed Pag 12 MRK960 dual true diversity receiver Audio menu The second item on the menu tree is AUDIO NONE d50 PTT Wisycom NONE d75 no compander 75us de emphasis analogue battery data amp PTT Wisycom NOISE REDUCTION SYSTEM pu e ENR WISY Wisycom ENR compander noise optimized digital battery data amp PTT Wisycom g x2. MRK960 allows an easy and quick configuration using buttons push knobs and displays The front panel is functionally divided in the following section A Scan amp Squelch automatic scan and squelch settings Infrared remote controlling and MIC setup through infrared interface Receiver 1 receiver 1 configuration and monitor of radio deviation levels Receiver 2 receiver 2 configuration and monitor of radio deviation levels Monitor monitoring audio output on headphone jack 6 3mm GGG Power amp Booster powering ON or OFF the receiver and the antenna boosters SCAN amp SQUELCH amp INFRARED The function SCAN initiates an automatic procedure for the choice of the less noisy channel in the selected group of channels the scan function measures the floor noise of all the channels of the selected group and show the result in the display This is a quick way to find the best channels to use in the selected group When pushed the scan button it is needed to setup or confirm the group of channels for the scan SQUELCH initiates the automatic procedure to setup the level of the squelch This is an automatic way to quick setup the squelch for the current frequency The transmitter must be off then push SQ button to let the system find the optimal value You can later accept modify or discharge this AUTOSET setup IR interface window for communications between the MRK950 and a transmitter You have to
3. NETWORK CONNECTION Wisycom Manager software allows to monitor and configure remotely complex systems base on MRK960s connected in USB chain or thru ethernet connection 4 racks USB CASCADE 8 receiver the first is the subnet controller that control up to USB interface ium other 3 receiver This entity is seen as single 8 re SESIA ceiver and using the ethernet port of the subnet controller can also be remoted in a computer net ICE work This way the system has also the information a p on every single MRK960s location allowing very ef v fective configuration and scene backup Ethernet 10 100 Base Tx ecu ttu _ MISSA Note it is not possible to connect more than 4 re ceivers MRK960 in a subnet USB Several USB cascade can be connected using the ethernet connection on each MRK950 acting as cascade controller Hereafter an example of a 12 rack configuration there is no limits to the complexity manageable on Wisycom Manager software ETHERNET ETHERNET HUB SWITCH Note If using MRK960 with antenna cascade using its integrated splitter the MRK960 acting as su
4. 4 dBuV 120 dBuVv e Co channel rejection gt 3 5 dB 2 uVRF gt 1 5 dB 9 100 uV RF e Adjacent chan selectivity gt 90dB 300 KHz e Spurious rec rejection gt 90 dB e IF image rejection gt 110 dB e IP3 Input 3 order Intercept Point gt 20 dBm e Spurious emissions lt 1pW typ 0 1 pW e DSP audio board 40bits floating point DSP processor for high dynamic range low noise multicompander audio processing and digital data detec tion Thanks to the latest DSP class shark by Analog Design 2Gigaflops 40bit power providing the highest audio quality 40bit floating point and a delay of only 0 39 msec AES3 output and 0 46 msec analogue output e Squelch signal strength squelch with menu adjustable threshold and adaptive type working the receiver adapts itself automatically to different conditions of both medium strength and speed variation of the received signal gt tone squelch it works by decoding the special key sub carrier digitally modulated present on the carrier of the actual Wisycom transmitters The tone squelch function can be inhibited for com patibility with other types of transmitters e Tone squelch it works by decoding the special key sub carrier digitally modulated present on the carrier of the actual Wisycom transmitters The tone squelch function can be inhibited for compatibility with other types of transmitters Pag 24 e Noise Reduction
5. Electromagnetic compatibalty and Radio spectrum Matters ERR Wireless microphonee m the 25 WH to 3 GHa frequency ranga EH ETS 300 445 Radio Equipment and Systems RES Electro Magnetic Compatibility EMC standard for wireless mierophones and similar Radio Frequency RF awdio link equipment ETS 301 485 Electromagnetic Compatibility and Radio spectrum Matters ERM Electrok fagnetic Compatibility EMC standard for radio equipment and services The conformity is achieved by fulfilling the following European Standard s WISYCOM s r l Franci iacstrelll Romano d Ezzelino VI 10 DEC 11 Adata niga r wm wm ee ee RES ms m wm m m ARODD mm mama ma mam s m masm mmm Address Data wa ag Mal Pag 27 WVisy Con WIRELESS SYSTEMS FOR COMMUNICATIONS Via Spin 156 e 36060 Romano d Ezzelino e Italy Tel 39 042 4 382605 e Fax 39 0424 382733 www wisycom com e e mail sales wisycom com Printed in Italy MRK960 en u05 18 December 2014 9 58 AM WISYCOM srl reserves the right to make changes at any time and without prior ntice
6. Wisycom ENR compander voice optimized digital battery ENC SY data amp PTT Wisycom Off On Adv Audio delay at TSO_ON ms Only with FW v 1 1 0 W or above 0 6 12 dB Note MIC level 30dB with using switch on rear panel LINE COM LINE COM 6 dBFS 26dBFS Frequency 444 442 440 1000 Hz Freq step octave 1 3 octave t octave 1 1 octave 1 5 octave 1sec 100ms i Frequency Diversity OFF YES TSQ detect alarm enable disable Configuration WCF AUDIO Noise Red The NOISE REDUCTION SYSTEM is used to select your current noise reduction system in the audio path Thanks to the DSP board it is possible to choose different types of audio processors MRK960 supports as standard configuration the following type of Companding system NONE d50 NO compander 50us de emphasis Analogue battery data amp PTT Wisycom NONE d75 NO compander 75us de emphasis Analogue battery data amp PTT Wisycom ENR WISY Wisycom ENR compander noise optimized Digital battery data amp Ptt Wisycom ENC WISY Wisycom ENC compander voice and high fidelity optimized Digital battery data amp Ptt Wisycom Use the buttons to save or exit from this function Depending on selected NOISE REDUCTION SYSTEM tone squelch function and transmitter battery status could be enabled or disabled since not all the wireless mi crophones have this enhanced functionality Tone sq The TONE SQUELCH function is an advanced fu
7. receiver circuits e Bar graph meters RF field strengths both A and B inputs AF deviation 5 150 with peak hold mode e Displays nr 2 one each receiver 64 x 256 OLED yellow e Calibrating AF tone 1 KHz 12 dBu other on request e Powering 99 138 Vac and 187 264 Vac with automatic switching 100 VA max e Temperature range 10 55 C e Dimensions 19 1U depth 370mm e 2 USBs type A B for network connection and devices cascade e 10 100 Base TX Ethernet port on RJ45 connector MRK960 dual true diversity receiver KA WisyCom Options specifications e Low impedance transformer on audio lines option XRL950 XRC950 Analog audio outputs are galvani cally isolated by means of a high quality low impedance shielded transformers Output level 12dBu nom 18dBu at max FM deviation Output impedance lt 30Q e g could drive at least 300m of high quality twisted pair audio cable without degradation in frequency response e COM audio output option PTT950 same specifications as LINE audio output e GPI output option PTT950 normally open opto relay isolated output AC DC 56Vpk max 100mAmax 10 ohm max on resistance 1 4 6 3 mm stereo jack connector 2 pins for relay contact receiver ground e Ethersound option ETS950 interface enable the connection of the MRK950EX on a Ethersound network for multichannel digital audio distribution on a single cat 5
8. to an host PC for remote monitoring The WISYCOM MANAGER is the PC software for the complete remote monitoring and managing several MRK960 also con nected thru an USB cascade WISYCOM MANAGER is able to find a configure network parameter of a MRK960 in ethernet connection with out knowing its IP address this is done thru a broadcast discovery Near the ethernet connector there are two led lamps one for the connection check and one for the data monitoring A receiver connected to a PC could be an subnet controller for other receivers if the other receivers are con nected in a chain with USB cables as shown on the picture 4 rack USB CASCADE USB connection The MRK960 comes with an USB 1 1 interface that has priority over ethernet connection in case of USB port connected to a PC the ethernet port is disable Near the USB connector there is another connector named LINK This connector could be connected to the USB port of the next MRK960 with an USB A to USB B cable to build a chain of receivers The maximum number of receivers in a chain is four The receiver with the USB connector free is the subnet controller receiver the one in the upper position on the picture It must be con nected to a PC by means of the USB port or by means of an ethernet connection Once connected start the WISYCOM MANAGER software to manage the array of receivers more details on software manual Pag 22 MRK960 dual true diversity receiver KA Wis Com
9. 960 dual true diversity receiver M De Ac Receiver 1 A x Line 1 v9 L ae Line 2 c Receiver 1 B HE 2 I 5 work cloc 3 m DE Qo Ethersound c c o c z z 2 Com Rx 1 Y Bs Com Rx 2 gt Receiver 2 A Bx U cc gt a Ear ph Left O B Receiver 2 B 2 Ear ph Right Receiver supervisor o INFRARED Front panel Ka microcontroller EOS Ethernet and user interface 5 E E USB MRK960 main block diagram The data sub carrier is digitally filtered to a very selective equivalent filter bandwidth 3Hz Each filter has its own data demodulator one for medium speed data detection at the output of the first filter and one at low speed data detection at the output of the second filter All the two demodulators are connected to the super visor micro controller for the data battery detection and signalling Digital audio processor for each receiver the demodulated signal is filtered by an anti aliasing low pass filter and then converted in the digital domain with a 96KHz 24bit audio A D converter The digital signal processor DSP working in double precision replicates all the analog functions with very high accuracy ultra low distor tion and without typical analog problems like components tolerances or long term or temperature drifts etc The high speed audio algorithms maintains the audio delay at about 0 390 milliseconds making it ideally for live events and to keep audio del
10. A Wisy Com Walk test The WALK TEST function records the RF level of the two antenna inputs separately for a total time of 90 sec onds Using the first button it is possible to choose what to plot the rf level of the antenna A or B the Max value between antenna A and B or both antenna levels separately Press START and walk on your area with a wirelss MIC transmitting at the current frequency while receiver records all received RF levels At the end of the sweep time it is possible to have a look on the graph and check if there are some hole of RF signals and evaluate your wireless coverage Finally push the 3rd button EXIT to leave this fucntion As rule of the thumb the signal coverage of the stage could be considered good if in all the stage the signal MAX AB is never lower than 10uV or 20dByV The plot in the picture shows a very low coverage with some areas not covered by the two receiving antennas In this case probably the position of the antennas must be changed and or the gain of the boosters adjusted Note the unit for RF level is the same chosen for the squelch level dBuVo t or uVolt OPTIONS Name The options NAME allow you to change the name of the receiver This is the name displayed in the top of the display in the main view and is the name sent to the transmitter with the sync function for transmitters with this advanced capabilit Use the knob to change the name and the buttons to save or ex
11. Ethernet compatible cable gt Needs DSP audio board installed gt Two RJ45 connectors for input and output data lines Pag 25 e Wisy Com MRK960 dual true diversity receiver ENVIRONMENTAL INFORMATION Applicable in the European Union and other European countries with separate collection systems Disposal of Old Electrical amp Electronic Equipment 2002 96 EC This symbol indicates that this products shall not be treated as household waste Instead it shall be handed over to the appropriate collection point for the recycling of electrical and electronic equipment The recy cling of material will help to conserve natural resources ITALY ONLY Obblighi di informazione agli utilizzatori ai sensi dell art 13 del Decreto Legislativo 25 luglio 2005 n 151 Attuazione delle Direttive 2002 95 CE 2002 96 CE e 2003 108 CE relative alla riduzione dell uso di sostanze pericolose nelle apparecchiature elettriche ed elettroniche nonch allo smaltimento dei rifiuti Smaltimento di apparecchiature elettriche ed elettroniche di tipo professionale Il simbolo del cassonetto barrato riportato sull apparecchiatura o sulla sua confezione indica che il prodotto alla fine della propria vita utile deve essere raccolto separatamente dagli altri rifiuti La raccolta differenziata della presente apparecchia tura giunta a fine vita organizzata e gestita dal produttore L utente che vorr disfarsi della presente apparecchiatura dovr quindi co
12. MRK960 USER MANUAL WIDEBAND TRUE DIVERSITY DUAL RECEIVER Rev 05 ref FW 1 1 0 w Date 15 January 2014 Wisy Com MRK960 dual true diversity receiver BRIEF DESCRIPTION The MRK960 is a high performance microphone system suitable for broadcast and high professional applica tion Thanks to its exceptional selectivity and intermodulation immunity MRK960 is able to operate even in the presence of very high DVTB T transmitter s signals The extreme bandwidth agility of 370 MHz allows you to always find amp work on the best frequencies avail able MRK960 is designed to be e easy amp quick to use thanks to automatic setup functions i e frequencies squelch remote configuration utilities USB Ethernet a display with intuitive context menu navigation e extremely flexible with an incredible frequency agility of 370 MHz more than one rack can be connected together thru a simple USB cable to act a multi channel receiver Moreover the DSP board allows the units to work with several digital audio outputs i e AES EBU Ethersound with multi companding compat ibilities and other digital features e best in class performances thanks to the latest Wisycom technology the unit has extreme RF sensitivity and immunity and superb audio quality e a durable amp upgradable investment thanks to the very robust design aluminum housing and the possi bility of upgrade enhance units performances w
13. NUN put the IR interface of the transmitter with the IR interface active in front of this window This is needed for example in the SYNC function Pag 6 MRK960 dual true diversity receiver KA Wisy Com RECEIVER 1 and RECEIVER 2 RECEIVER 1 Area A 3 LED bars e two bars for the RF levels in dBuVolt diversity A amp B antenna level FM modulation of the received channel modulation in referred to the nominal deviation LIN audio in line output active COM audio in com output active optional GPI g p i command thru opto isolated relay active optional DATA data subcarrier from microphone transmitter detected Area B display 256 x 64 pixels yellow OLED display Area C 3 push buttons membrane The function of each button upper middle and lower will be readable from the context menu on the display Area D Push rotary knob and light indicator Warning YELLOW and Alarm RED light indicator e Yalow bed light indicator Warning when there is no audio in both the audio outputs COM and LINE Red Slow Blinking light indicator Low Alarm when the battery level of the transmitter is lt 25 e Red Fast Biinking light indicator Medium Alarm when the battery level of the transmitter is lt 12 e Red Fb d light indicator High Alarm when a booster A or B has a short circuit Moreover the fol lowing message appears on the OLED display Over Current on antenna A B MONITOR Monitor 1 and 2 it ac
14. SCAN The SCAN function is very useful to discover the best channels to use the channels with lower RF noise in the selected group After pressing the SCAN button both receivers are ready to start with the SCAN function It is possible to select the receiver 1 or the receiver 2 or both i e simultaneously scan on different groups With the first menu on the display it is possible to choose the group of channels for the scan and pressing the knob is possible to define a reference line drawing in the final scan result graphic just for user reference Pressing the knob the focus change between REF LINE and GROUP Pressing the START button an alert window remind the user to switch off all the transmitters before starting the SCAN press START again and the SCAN function will start At the end of the analisys on the display it is possible to see the graph of the RF levels measured in each channel and rotating the knob it is possible to move the marker on the bottom of the graph just to see the channel number and the RF level measured for that channel Pressing the knob it is possible to have a graph in rank order instead of channels order so it is very simple in rank order to find the less noisy channels because they are in the left part of the graph The marker is always active rotating the knob Pressing the knob the graph changes between rank order to channel order again For terminating the SCAN function press the lower button on the right
15. ay as short as possible The DSP unit also filters and demodulates the data carrier and communicates all the parameters and informations to the supervisor micro controller The audio output goes to the digital outputs AES3 or is converted in the analog domain with a high quality 24 bits 96KHz D A converter and an anti aliasing filter The analogue audio signal is routed in three parallel ways LINE COM and HEADPHONE MONITOR amplifier The HEADPHONE MONITOR amplifier is controlled by the buttons on the front panel and by the volume knob The monitor output depends on the squelch and on the tone squelch only in the TSQ ON selection In TSQ OFF and in TSQ ADV the monitor output is muted only by the squelch control The two analogue audio ways LINE and COM has the same audio quality and are controlledy by the Tone squelch matrix Each audio driver has a VCA for the soft switching of the audio signal and the muting func tions controlled by the supervisor microcontroller After the VCA an electronically balanced amplifier drives the output signal directly or thru a very low impedance screened audio transformer optional The audio output without transformer could withstand up to 52 Vdc of phantom supply with no damage and up to 100V with transformer Pag 5 A Wisy Com MRK960 dual true diversity receiver USER GUIDE MONITOR BOOSTER dC Sm MIGH PERFORMANCE DSP AUDIO PROCESSING MRK960 w ao e I9 Front panel functions
16. bnet controller must be also the receiver connected with antennas and boosters This is to be able to manage and monitor voltage and current on antenna boosters Pag 23 RECEIVER 1 HIGH PERFORMANCE DUAL WIRELESS RECEIVER HIGH PERFORMANCE DSP AUDIO PROCESSING MRK960 dual true diversity receiver RECEIVER 2 MRK960 vuis Com Technical specification e Two indipendent receivers tunable in all the specified frequency range e Frequency range gt 470 840 MHz TV ch 21 62 with internal active splitter e Memorized channels up to 2400 divided in 40 groups with 60 channels each e Frequencies microprocessor controlled PLL frequency synthesizer circuit with 25 KHz minimum step others on request e Frequency error 2 5 ppm within the rated temperature range e Modulation FM SOus de emphasis other de emphasis can be pre set on request and can be recalled from the menu e Nominal deviation 40 KHz 1 KHz 65 KHz peak Max acceptable devia tion 80 KHz e A B antenna inputs with BNC type female connectors e A B antenna input booster supply 12Vdc 200mA max e RF input impedance 50 ohm SWR 1 2 e Sensitivity with ENR lt 0 9 uV 1 dBuV for SND N 52 dBA in the whole switching range Rms value A weighted gt lt 10 uV 20 dBuV for SND N 115dBA in the whole switching range Rms value A weighted e Amplitude response lt 0 2 dB for RF input signal
17. e configuration as in the picture typ 8 receivers Connect the output antenna connec tor to the input of the next receiver in reverse order vier com FF between antennas side A and antennas side B Us IN ing this configuration in case of one of the receiver is faulty the other receivers can continue to work with out diversity Li A vie com e active wideband antenna splitters like the Wisycom SPL214AW for four MRK960 8 wireless microphone channels or the SPL218AW for eight MRK960 16 wire less microphone channels More channels are possible combining more splitters In this case the active anten nas and the boosters will be powered by the splitters Analog audio connection The MRK960 in the full optional audio output configuration has three audio outputs for each receiver two balanced with XLR connector and one unbalanced with a 1 4 6 3 mm stereo jack connector The unbal anced audio output has the same audio signal of the LINE output The balanced audio outputs could be electronically balanced or transformer isolated with very low impedance when the TRAFO option is installed Below the XLR connectors there are two switches the left one LINE MIC inserts a fixed resistive attenuator of 30dB on the audio output the audio levels on the XLR connector according to the setting of the Out level and to the setting of the switch below the XLR connectors at nominal modulation are o ones curtevegsu_ _ours
18. e od _ Att 0dB 12 dBu 6 dBu 0 dBu 18 dBu 24 dBu 30 dBu the switch on the right LIFT cuts the connection beetween the pin one of the XLR connector and the ground of the MRK960 to avoid ground loops Digital audio AES EBU The MRK960 has an digital audio output channel according to the AES3 or AES EBU standards for professional 24 bit digital audio The left channel of the AES3 stream is the audio of the receiver 1 and the right channel is the audio of the receiver 2 When no word clock is connected the sampling rate of the digital audio output is fixed at 48KHz internally crystal generated with the external word clock the sampling rate could be from 32KHz to 108KHz The word clock input could be left at high impedance or loaded to 75 ohms The word clock output could be connected to the next MRK960 or could be left open Pag 21 Wisy Com MRK960 dual true diversity receiver Analogue Audio XLR Digital Audio AES EBU Digital Audio Ethersound s 0 Link Ethernet 10 100 Base TX Link USB 9 c in i A lt LI Digital audio Ethersound The Ethersound option on the MRK960 adds the capability of a connection beetween the MRK960 and an Ethersound audio distribution system This option adds two RJ45 connectors for the ethernet cables one is the input and the other is the output of the Ethersound interface Link Ethernet 10 100 Mbit s The Ethernet interface is used to connect an MRK960
19. from 12dBu to 6dBu or OdBu This setting is unique for LINE and COM Note the audio output level could be further reduced by 30dB with a switch below the XLR output con nector in the rear panel Pag 14 MRK960 dual true diversity receiver KA Wis Com Cal tone The CALIBRATION TONE function generates a tone at specific frequecies or a sweep of tones at the audio outputs Change the value of the following parameters according to the desiderable calibration tone Mode select the type of calibration tone Tone Sweep Out select the outputs for the calibration tone only LINE only COM or LINE and COM together Level select the level 6 dBFS or 26 dBFS Frequency only for Tone 444 442 440 1000Hz gt Freq step only for Sweep ocatve 1 24 octave Time step only for Sweep 1sec 100ms With the buttons it is possible to start stop and exit from the tone generation The output not selected for the tone generation will be muted When the tone is active at least in one output the led bar of the deviation indicates the level selected Frequency diversity This option is normally set to OFF Set to YES when you need e to increase the reliability in case of failure e to increase the reliability in case of transmitter batteries empty e to increase the security against fading due to reflections on the radio link When a receiver is set to frequency diversity YES the audio output is calculated from the best RF s
20. ged Pag 18 MRK960 dual true diversity receiver KA Wisy Com OPERATING INFORMATIONS RF Level led bars Two RF level led bars for each receiver indicate measured RF level at the antenna input of the receiver in the selected channel For a typical diversity reception it is a good starting point to consider that the two signals should have the same average level over time but this could be different while moving the transmitter on the stage The important issue is that moving the transmitter on the stage the diversity has to work switching from one receiver to the other receiver as indicated by the two blue leds on the top of the bars When the RF levels of the two inputs have similar level the diversity control enable the two receiver at the same time further increasing the S N ratio at the audio output Modulation led bar The third led bar of each receiver indicates current channel modulation as percentage of nominal deviation not the audio output level The difference between modulation and audio level is because normally there is a preemphasis on audio transmission and some manufacturer uses different compression values and different audio frequency equalization Therefore to have the maximun efficiency of the radio channel it is important to use the highest modulation bandwidth possible in respect to the dynamic range of the audio signal and the manufacturer specifications If the receiver MRK950 has the DSP board option the scale of t
21. he modulation will be changed according to the nominal modulation of the type of microphone and manufacturer selected in the NOISE REDUCTION SYSTEM The modulation led bar is blank when the squelch and or the tone squelch opens the audio output circuit or if there is no modulation on the transmitter of course Adjust the gain of the audio chain in the transmitter to have in the maximum modulation peaks the 100 of modulation band width leaving the next 6dB of modulation margin before clipping red PEAK led for extra sound pressure margin If the audio level is not exactly known be conservative and adjust the microphone gain in a lower position to avoid clippings during the working session Battery indication On the main display of each receiver is always well visible the battery status of the transmitter area 12 of the main view The resolution of the indication depends on the transmitter Wisycom transmitters send 8 levels of battery charge status other competitors 6 or 4 or 3 level full half empty When the transmitter is a Wisycom the display of the batteries indicate the correct icon and the percentage of the charge but when the charge reach the 25 the battery area on the display became flashing when the charge reach the 12 5 the illumination of the display is flashing to give an high visibility alarm to the user Pag 19 A Wisy Con Rear panel MRK960 dual true diversity receiver Mains output Do not connect m
22. hes for attenuating the audio output le vel on the XLR connectors The attenuation is 30dB Unbalanced LINE audio output of receiver 2 1 4 6 3mm stereo jack socket Switches for shorting the pin 1 of the XLR con nectors of receiver 2 to the receiver ground or not Switches for attenuating the audio output le vel on the XLR connectors The attenuation is 30dB Word clock output for daisy chain connection BNC connector Optional LINK connection for cascade connection of re ceivers for remote control functionality USB A connector USB B connector for PC connection if this MRK960 is a subnet controller If this MRK960 is part of a subnet this connector must be con nected to the LINK connector of the previous MRK960 Product identification label Antenna A output BNC connector for antenna splitting Antenna B output BNC connector for antenna slipping MRK960 dual true diversity receiver KA Wiisy Com RECEIVER CONNECTION Antenna Connection The MRK960 has two antenna inputs necessary for a true diversity reception system Each input signal is splitted for the two diversity receivers on the MRK960 Each antenna input could deliver a booster supply of 200mA at 12Vdc this is enough to supply an active antenna like the Wisycom LBNA and a booster like the Wisycom BAA needed only when the antenna cable has a very high attenuation For connecting more receivers on same antennas use e the antennas cascad
23. ignal re ceived from the two receivers WARNING two transmitters tuned with the two receivers must be placed on the same audio source and must have the same configuration ex gain tone squelch setting RF power distance from the audio source NOTE the Noise reduction can be different Note Frequency diversity in each receiver can be set independently Note With frequency diversity enabled set to YES the Tone Squelch menu allows only the setting op tions ON and OFF the ADV option is not allowed Frequency diversity example RX1 tuned on f1 with Frequency Diversity set to YES RX2 tuned on f2 with Frequency Diversity set to NO Pag 15 Wisy Com MRK960 dual true diversity receiver Audio output RX1 is calculated from the best RF signal received from the two receivers Audio output RX2 is calculated from the RF signal received from RX2 TSQ detect alarm This option is normally disabled If enabled the receiver shows an alarm Tone squelch not detected in case of absence of tone squelch The alarm appears when the audio output becomes suddenly muted in the following conditions e AUDIO gt Tone sq set to ON or ADV e RF level gt squelch e Tone squelch not detected Sync The SYNC function selected from the main menu with the lower button is useful to tune a transmitter on the same frequency of the receiver via the IR interface Before starting the sync function tune the receiver on de
24. it from the function 12 alphanumeric characters A Za z0 9 case sensitive Display Brightness and Timeout Display brightness allows to change the brightness of the display from 1 to 15 level step 1 dB Display LOW Timeout 0 120 sec controls display behaviour as follow After a first timer timeout without any input on the receiver buttons or wheel the display gost on RE DUCED BRIGHTNESS MODE After another timer timeout the receiver goes into LOW BRIGHTNESS MODE and leaves current menu to be back on TOP MENU Display OFF Timeout OFF 5 240 min after the timeout without any input on the receiver buttons or wheel the display switches off OFF display always power on NOTE Each receiver has indipendent display parameters Boost active on antenna allows to select which antenna input A B or A B has to be powered on by pressing BOOSTER button ifrom the front panel Pag 11 Wisy Com MRK960 dual true diversity receiver Info the INFO function shows many important features or information of your MRK960 receiver Range info about the frequency limits of the receiver Temp internal temperature of MRK960 Ant A and Ant B the measure of the output current for powering the boosters connected on antenna input A e B connectors The current measurement is active only when boosters are switched on The booster supply voltage is 12 Volts Serial serial number of the MRK960 receiver
25. ith simple slot in card pc like thru the DEXB expansion bus Moreover MRK960 system is already set up for the exclusive PTT function remote command developed and patented by Wisycom and now appreciated in the broadcast world Simply pushing this button PTT the presenter causes the remote switching of the receiver s output line from the main line to the additional intercom line in order to be able to talk off air directly with the technical team Then all PTT s MICs can be connected in pre fading allowing a clever intercom setup SAFETY INSTRUCTION e Read this safety instruction and the manual first e Follow all instructions and information e Do not loose this manual e Do not use this apparatus under the rain or near the water e ATTENTION supply the apparatus with a correct mains voltage and with the ground connection Check the power cord integrity e The power cord must be protected from damage e Do not install the apparatus near heaters or in hot environments do not use outside the operating tempera ture range e Mount the apparatus as indicated in the instruction do not block side grids for air ventilation e If the external air filter is mounted clean it regularly Pag 2 MRK960 dual true diversity receiver A Wisy Com e WARNING do not open the apparatus RISK OF ELECTRIC SHOCK e Do not open the apparatus only qualified service technician are enabled to operate on it The appara
26. kable with dual true diversity receivers e Extreme RF radiofrequency performances and reliability e Tuning windows of 240 MHz with tunables filters 2 ch s independent 470 840 MHz TV ch 21 67 with internal active splitter e Wisycom digital expansion bus DEXB for future upgrade enhancement thru simple slot in card pc like DEXB can host DSP 40bit dsp processing upgrade cards providing e digital output i e AES3 Ethersound e multi companding compatibility e future digital functionality enhancements e Balanced electronic AF output low impedance transformer coupled optional e 2 USB s connectors for configuration monitor and cascade rack connections e Automatic scan for best channels squelch and other automatic setup e Infrared interface i e for system setup microphone programming e Automatic transmitter re programming thru infrared sync function Pag 3 Wisy Com MRK960 dual true diversity receiver e Software to monitor setup units and with spectrum field analysis e Ethernet 10 100 base Tx network interface for configuration monitor e Digital audio interfaces AES EBU with word clock in out Optional e Ethersound interface e Push to Talk PTT function with audio exit and GPI signals patented e Very low impedance transformer outputs TECHNICAL DESCRIPTION The MRK960 is a professional dual diversity receiver for wireless microphones reception especially designed for broadcast producti
27. nction whose behaviour depends on selected noise reduction system This chapter explains TONE SQUELCH operations when associated to a Wisycom wireless microphone with the ENR WISY or ENC WISY as active noise reduction system Other types of wireless microphones could have different behaviour or could not work properly Here after the complete tone squelch function when ever the receiver does not have all the options installed some functions will be hidden Pag 13 v Wisy Com MRK960 dual true diversity receiver The tone squelch selection could be OFF ON or ADV advanced After the SAVE of tone squelch selected a CONFIG submenu appears on the right Enter on the CONFIG submenu to change the setting of the choosen Tone Squelch see matrix below With the knob and the buttons it is possible to choose for any one of the three TSQ modes the status of the audio outputs LINE and COM and in the TSQ ADV mode it is possible to choose the status of outputs LINE COM and GPI when the transmitter PTT button is released or pushed The dot in the circle on the left of the display shows the actual setting for the tone squelch function Tone squelch OFF enables the audio output on LINE and COM if present connectors always it could be muted only by the squelch on RF signal the RF squelch has always prior ity Tone squelch ON enables the audio output on LINE and COM if present only if the transmitter sends the correct identifi cation t
28. ntat tare il produt tore e seguire il sistema che questo ha adottato per consentire la raccolta separata dell apparecchiatura giunta a fine vita L adeguata raccolta differenziata per l avvio succes sivo dell apparecchiatura dismessa al riciclaggio al trattamento e allo smaltimento ambientalmente compatibile contribuisce ad evitare possibili ef fetti negativi sull ambiente e sulla salute e favorisce il re impiego e o riciclo dei materiali di cui composta l apparecchiatura Lo smaltimento abusivo del prodotto da parte del detentore comporta l applicazione delle sanzioni am ministrative previste dalla normativa vigente Iscrizione al Registro A E E n IT09100000006319 C O The MRK 960 Receiver System complies with ETSI ETS 300 422 Subject to Change without notice Pag 26 MRK960 dual true diversity receiver A Wis Com DECLARATION OF CONFORMITY Manufacturer Name WISYCOM S r l Manufacturer Address via Spin 156 JG0G0 Romano d Ezzelino VI italy Herewith we declare that Product Type Dual diversity receivers for professional wireless microphone system Product Name MRK 960 Optional and Accessories This declaration includes all the options and accessories included into the product We declare that the above mentioned product is compliant with 89 336 EEC EMC directive x EN 50055 Safety requirements for mains operated electronic and related apparatus for houschold and similar general usc f ETS 300 422
29. of the display Pag 17 MRK960 dual true diversity receiver In the above picture a typical graph of the scan function only the graph area of the display This graph or dered by channel numbers shows the RF levels in dBuV for each channel in the selected group i e Ch 00 Rotating the knob the small arrow cursor moves from a channel to the next one on the right of the graph it is possible to see the rank of the channel selected by the cursor its number its frequency and the RF level Press ing the knob the order of the graph became the rank not the channel number In this way it is more simple to choose channels with lower RF noise they are in the left part of the graph See at the picture below Leti Ls Jeu off LOCAL HET HOME AP 15460 In this graph the channels are ordered by rank Turning the knob it is possible to change the channel and read ing its number frequency and level of RF noise The horizontal dashed line is the squelch level set before starting the scan Connecting an headphone at the monitor output is possible to ear the signal in the channel selected by the knob If the RF signal is below the squelch level the upper button near the display disable enable the squelch so the audio output is enabled also for weak RF signal The SELECT button is the exit from the SCAN function tuning the receiver on the selected channel the EXIT but ton exits from the SCAN function leaving the receiver channel unchan
30. on live stages theatres and top professional applications It s winning performances are High immunity on strong rf environment e Huge switching bandwidth High audio performances and flexibility thanks to the digital processors High reliability and durability One of the milestones in the design of the MRK960 is high reliability most of the circuitry of the receiver is independent one from each other Here below a schematic with an overview of main receiver functions Starting from the antenna inputs each antenna could be indipendently powered from a single power regula tor monitored from the microcontroller For each antenna the RF signal is splitted in the receiver 1 and in the receiver 2 antenna A and antenna B with a wide band splitter In this way any one receiver could be tuned in any frequency of the switching range 370 MHz Receiver 1 and 2 are true diversity receivers each one is made of two receivers tuned on the same frequency hereafter called section A and section B The receiver 1 section A and the receiver 2 section A are connected to the antenna A the receiver 1 section B and the receiver 2 section B are connected at the antenna B Each receiver has its own demodulated signal and its own RSSI signal Receiver Signal Strenght Indication a microcontroller select or combine signals from section A amp B to have the best audio The demodulated signal flows to the digital audio processor Pag 4 MRK
31. one signal tone squelch Tone squelch ADV with or without PTT options on micro phone transmitters gives more possibilities of audio routing and GPI signalling Note the tone squelch could not substitute the squelch on the RF signal level For the best perfor mance of the receiver it is better to use the SQUELCH amp TONE SQUELCH together Audio delay at TSQ ON ms With this parameter it s possible to enable a delay on the activation of the audio when the tone squelch is ON If the tone squelch is set to ADV advanced this delay is not enabled This delay is set to 500ms by default but it s possible to change it from 100 to 2000ms step 100ms or OFF When the delay is set the output audio is enabled only if the tone squelch is detected during all delay time It permits to avoid that a brief strong interference with the same freq of the tone squelch enables the audio in output Note this feature is available from firmware version 1 1 0 w In the previous FW versions the delay was forzed to OFF and not configurable by the user Out level The OUT LEVEL function allows the adjustment of the audio level on the LINE and COM balanced outputs The nominal level used also in the technical specifications of the receiver is 12dBu at nominal modulation and could reach 18dBu to 20dBu in clipping This level could be too high for some audio mixing units so with the out level function it is possible to reduce the nominal level
32. ore than 8 units e O 0 Mains socket input Mains fuse 2A T Ethernet connector RJ45 for LAN connection of the receiver The leds on the connectore indi cate the status of the connection Link and Ac tivity AES EBU XLR 3 pin output connector digital audio output transformer isolated balanced This is part of the AES EBU optional board to ghether with 6 7 and 22 Here it is possible to install different option like Ethersound I O Optional Word clock input for external syncronization of digital audio output 75 ohms termination switch for word clock in put Antenna B input BNC connector DC output for booster power supply XLR 3 pin male connector COM audio output of the receiver 2 balanced Optional XLR 3 pin male connector LINE audio output of the receiver 2 balanced GPI output of the receiver 2 1 4 6 3mm ste reo jack socket Optional XLR 3 pin male connector COM audio output of the receiver 1 balanced Optional XLR 3 pin male connector LINE audio output of the receiver 1 balanced GPI output of the receiver 1 1 4 6 3mm ste reo jack socket Optional Antenna A input BNC connector DC output for booster power supply Unbalanced LINE audio output of receiver 1 1 4 6 3mm stereo jack socket Pag 20 Switches for shorting the pin 1 of the XLR con nectors of receiver 1 to the receiver ground or not Switc
33. re it is also possible to lock channels or groups When a channel is locked it is not possible to change the frequency from the front panel of the receiver Locking a group means that all channels are locked When a channel or a group are locked at the left of the group name in the Chan Group menu will appear a lock icon as shown in the picture below When the lock picture is shown the central button is not displayed thus changing frequency is not possible Gr name The second item on the radio menu is GROUP NAME with this function is possible to assign or change a name to a group of channel This short name 8 character is displayed at the right of the group number in the main display view First chose the the group and then press the knob You will be able to edit any character of the group name rotating the knob Push the knob to edit the next character Confirm or exit with the buttons Squelch The SQUELCH function allows to assign a value at the squelch of the receiver Rotating the knob it is possible to change cur rent squelch level from OFF it means no audio squelch to 1mV Pressing the knob you could setup the desired level and also configure you measurement unit between microVolts and dBuV At the end confirm or exit with the buttons There is also an automatic procedure to set up the squelch level it will be discussed later in this document at the Autoset SQUELCH item Pag 10 MRK960 dual true diversity receiver
34. sired channel manually or using the SCAN utility After this enable the IR interface on the transmitter Now press the knob and the lower button to start the SYNC function Keep the IR window of the transmit ter in front of the IR window of the receiver and as soon as the connection is done the receiver will send to the transmitter all the information needed If the operation is not possible i e the frequency range of the transmitter is not compatible with the frequency of the receiver the display will show an error message If the transmitter has the function NAME enabled when the sync function is completed it will show the same name of the syncronized receiver Pag 16 MRK960 dual true diversity receiver KA Wisy Com SQ squelch autoset The SQUELCH AUTOSET function helps the user to set the squelch level of the receiver at a good level for the selected channel o After pressing the SQ autoset button the two receivers ask to switch off the transmitter and then after the user confirmation on one receiver or all the two receivers at the same time it starts to measure the noise in the selected channel AUTOSET IR INTERFACE A few time later after some calculation the receiver proposes the new squelch level The user could then accept refuse or modify it by means of the buttons and of the knob Note during the Autoset SQUELCH function it is not possible to change the unit of the squelch voltage
35. system compander circuit can be pre set or switched off to the following modes ENR Wisycom Extended NR as default CUSTOM to be compatible with other brands transmitters e AF line output electrically balanced on XLR 3M connector option XRL transform er with 30 Ohm imp gt AF line output level 12 dBu 3 1 Vrms 9 nominal deviation could be individually attenuated by 30dB by means of a switch on the back panel under the XLR connectors AF line output peak level 20 dBu 7 75Vrms AF line output connector XLR pin 1 could be grounded or floating by means of a switch on the back panel under the XLR connectors Could withstand up to 52 Vdc of phantom supply e AF bandwidth 40 Hz 20 KHz e Frequency response lt 0 5 dB 0 2 dB typ in the 50 Hz 19 KHz range e Distortion lt 0 3 0 1 typ peak deviation ENR noise reduction sys tem enabled e SND N ratio 1 gt 115 dB 118 dB typ 2 e Monitor output 1 4 6 3 mm stereo jack connector e Monitor output level max 6 Vrms 150 ohm e Monitor out impedance 100 ohm for auricle e AES EBU AES3 board externally synchronized balanced transformer isolated output 24 bit professional audio stream word clock input from 32KHz to 108KHz BNC connector word clock input impedance 750 or high Z externally switchable word clock output on BNC connector for cascading more units e Diversity technique true diversity Twin
36. t ter battery data carrier or tone squelch 6090 989000000 transmitter battery charge status Thru the main menu on the LCD display and the LED bars for the RF level and modulation the user has the complete monitoring in real time of the wireless channel in use Menu tree To access the configuration menu of the receiver is necessary to press the rotary knob at the right of the dis RECEIVER 1 AN play This allows you to access the main menu li e Nei Pressing firt the rotary know shows a hidden window area 11 the image of the main view with three main headings RADIO AUDIO SYNC To activate one of the items in the menu press the corresponding button to the right of the display see picture hereafter Press the knob RECEIVER 1 HIGH PERFORMANCE DUAL WIRELESS RECEIVER Pag 8 MRK960 dual true diversity receiver KA WW i Con Radio menu The first item on the menu tree is RADIO Pressing the upper button RADIO you go at the RF functions menu of the receiver as shown below RADIO GROUP CHANNEL 470 840 MHz FREQUENCY 25KHz step GROUP NAME Description 30 characters SQUELCH OFF 1mV change unit between mV amp dBuV WALK TEST RF level ant A B max A B A B for 90sec NAME DISPLAY BRIGHTNESS OPES rudis 0 120 sec reduced amp low brightness Timeout sec DISPLAY OFF Timeout OFF 5 240 min min BOOST ACTIVE ON ANTENNA iis Lou Range 470 840 o
37. tivates monitor audio on jack output 6 3mm for receiver 1 and 2 respectively a green LED is lighted when audio is enable Audio level can be adjusted with the rotary knob The red led CLIP indicates a clipping in the audio moni tor output POWER amp BOOSTER BOOSTER it activates antenna powering boosters with 12VDC 200mA max and the green LED is lighted Blinking LED indicates a faulty condition in this case power down the device and check for short circuits or overloads in the RF cables or boosters Booster supply for antenna A and antenna B are indipendent switchable from the RA DIO OPTIONS menu POWER ON OFF square powering button turns on off the receiver When in OFF posi tion both phases are disconnected from power Pag Wisy Com MRK960 dual true diversity receiver LCD display Main view All the basic information on the receiver status are readable in the main view of the LCD display The main view has the following info receiver name current tuning frequency current channel number current group number and group name TV channel used for the current frequency Tone Squelch current setup LOCAL or REMOTE receiver management via USB or Ethernet connection Squelch level microVolt NET connection to a host PC USB or Ethernet Analog audio output level at nominal FM deviation status of the output lines audio line audio com gpi and detection of the digital data carrier i e transmi
38. tus needs servicing when is not properly working or is damaged by liquids moisture or other objects are fallen in the apparatus e Use only accessories or replacement parts authorized or specified from the manufacturer e Do not supply more than 7 apparatus MRK960 from the mains output see power requirements for other apparatus e Clean the apparatus only with dry cloths do not use liquids e The ON OFF is a double pole circuit breaker but to ensure the complete disconnection of the apparatus disconnect the power cord e Report the serial number and the purchasing date in front of the manual it is needed to have proper re placement parts or accessories from the manufacturer e When replacement parts are needed use only replacement parts authorized from the manufacturer Sub stitution with not authorized parts could result in electric shock hazards or fire Keep attention on all the labels with warnings or hazards on the apparatus e WARNING The apparatus is intended for professional use anyway the manufacturer alerts the user that the headphone output power of the apparatus could exceed the level of 85 dB A of sound pressure level and this could be dangerous for the hearings Do not use the headphone with high power level or for long time Reduce the power or suspend the hearing in the case of any kind of hearing problem Main features MRK 960 is a modular wireless microphone receiver System in a 19 1 unit module stac
39. utput current for powering the Ant A booster connected on antenna A OPTIONS if booster active on ant A output current for powering the Ant B booster connected on antenna B INFO if booster active on ant B Serial Errors App App bl Netw Netw bl DSP RF Test Freq RF level A amp B Delta A amp B Tsq mod H amp L FACTORY PRESET Pag 9 v Wisy Com MRK960 dual true diversity receiver Chan Group The CHANNEL GROUP item enables the user to edit channel channel group and frequency of the selected items Change rotating the knob the channel or the group of channels and confirm or exit with the buttons To edit the frequency of selected channel press the middle button and change it with the knob Press the knob to move between MHz and KHz Confirm or exit with the buttons As shown in the above picture the display area has 3 rows with 1 Channel number 0 to 60 and Channel frequency in 25kHz step 2 Group number 1 to 40 and group name 8 char 3 Group description 30 char The MRK960 has 40 groups of 60 channels each Normally this is too much for wireless microphones applica tions Connecting with computer with WISYCOM MANAGER software it is possible to hide single channels or even complete groups of channels once hidden those items are not shown anymore on the channels or groups selection To show channels or groups hidden use again the WISYCOM MANAGER software Using this softwa
Download Pdf Manuals
Related Search