User Guide
Contents
1. aA MIPRO User Guide ACT 828 Wideband Dual Channel Digital Receiver ACT 818 Wideband Single Channel Digital Receiver m wW MIPRO Electronics Co Ltd Headquarters 814 Pei Kang Road Chiayi 60096 Taiwan Tel 886 5 238 0809 Fax 886 5 238 0803 MICROPHONE PROFESSIONALS www mipro com tw mipro mipro com tw CE oa Illi All rights reserved Do not copy or forward without prior approvals MIPRO Specifications and design subject to change without notice MN 014 06 CE454B eh ON EN o a S 10 11 12 13 14 15 16 17 18 IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarised or ground plug A polarised plug has two blades with one wider than the other The wide blade is provided for your safety When the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plug convenience receptacles and the po2. Antenna A Antenna B A gt a 13 EQ Capsule Equaliser Setting The EQ parameter is used to select from a range of simulated microphone capsule EQ s The default setting for the factory fitted MIPRO capsule is 00 EQ cursor starts flashing iml PUSH FOR MODE ACT lt PARAMETER N Turn clockwise to increase by one number Turn counterclockwise to decrease by one number iml PUSH FOR MODE lt PARAMETER gt F denotes anti feedback feature is activated o denotes anti feedback feature is not activated Operating Procedure 1 Press the rotary controller to activate and move the cursor to the EQ parameter When the EQ cursor starts to flash the Equalizer is ready to be set 2 Rotate the rotary controller clockwise to increase the Equalizer number counterclockwise to decrease the Equalizer number 3 The first digit in EQ parameter will be either F or 0 F denotes anti feedback is activated and 0 denotes anti feedback is not activated 4 The second digit in EQ parameter denotes the selected Equalizer number A total of 10 EQ numbers are available starting with 0 and ends with 9 Numbers 0 8 are preset EQs and number 9 is user defined 0 is the default EQ number NOTE There are 9 preset and 1 user defined built in equalisers 00 09 EQ 00 is the default EQ for the factory fitted MIPRO handheld microphone capsule EQ s 01 08 are eight other simulated microphon
3. 7 e For ideal reception and performance install the receiver at least 1 meter 3 feet above the ground and away from EMI RFI noise sources In addition place the transmitter microphone at least 1 meter 3 feet away from the receiving antenna as shown Figure 8 wall 4m wp Figure 7 Figure 8 Ground Receiver VFD Interface All information displays on the same VFD screen RF Signal Meter Indicates received signal strength Audio Signal Meter Indicates audio input level from transmitter Encryption Status Icon Can be turned on or off Parameter Lock Icon Can be turned on or off Working Frequency MHz Diversity A B Antenna Signal Indicators For antenna setup only ACT Indicator Equaliser Can be programmed Address Code For remote control ID Can be programmed Channel Can be programmed Group Can be programmed Squelch Meter Settings can be programmed Transmitter Battery Meter Shows real time battery status ___ Fully Lit VFD Screen VFD Screen Pinus RF E AF GRP Function Selection Rotary Controller To set parameter values 8 parameters can be selected and programmed See instructions below Ieee alee ee ee et pe ae Sa GRF mH gL gl ac a rl I Parameter Setting Procedures To Activate Parameters Press the rotary controller knob to activate and move the cursor to any of the 8 parameters Each press moves the cursor to the n
4. in the same frequency band quickly and precisely Setting ACT Transmitter Frequency FAILEd ACT indicator illuminates Press ACT button fl PUSH FOR MODE lt PARAMETER gt Indicates the frequencies did not sync successfully Ensure the IR windows in both the receiver and transmitter are lined up and can see each other then press the ACT button again To Activate Press the ACT button once to activate the ACT sync function Once activated the words ACT and Sync on the receiver will illuminate Flashing will stop when the IR signal is received by the handheld or bodypack transmitter or no IR signal is received within 10 seconds To Cancel e When the words ACT and Sync on the receiver illuminate press the ACT button again e When the words ACT and Sync on the receiver illuminate do not press any button ACT function will stop and cancel automatically after about 10 seconds Instructions 1 Ensure a receiver channel is set up Group Channel the transmitter battery is charged and the transmitter is powered ON 2 Press the ACT button on the receiver to activate the ACT function Once activated the words ACT and Sync will illuminate 3 Bring the ACT handheld or bodypack transmitter within 30cm 12 of the IR port on the receiver check your transmitter documentation to find out where the IR port is located on the transmitter The r
5. off all unused microphones
6. IPRO DVU USB interface connector Using the RS 232 or USB connector you can link to a computer through the RS 232 COM port or USB port See diagram below Connect to keyboard jack on PC Connect to RS 232 jack on PC PC Connector of keyboard should plug in here Connect to USB MIPRO DVU jack on PC ICO RX1 e O I RX2 D en I CO RX3 D I jes e Plug one side of the supplied telephone type cable RJ 11 connectors to the REMOTE OUT socket of the on the rear of the receiver and the other end of the cable to the REMOTE IN socket on the rear of the second receiver Repeat this connection for each receiver in the system as per the illustration above Finally connect the REMOTE IN socket on the rear of the first receiver to the MIPRO DVU or MIPRO DVJ e The system can link monitor and control up to 64 receiver channels simultaneously e The connection cable to the computer can be up to 300 metres 330 yards in length However signal stability and data transmission speed decreases as cable distance gets longer RF it is recommended not to exceed 100m 110 yards to maintain the highest data quality as
7. In order to monitor the system remotely each channel must have its own address for individual identification If two or more channels have been assigned the same address it will cause confusion in the monitoring system If the system is not under PC monitoring control identical addresses will not affect the receivers operation 15 Encryption to Add or Remove Encryption Decryption Instructions eae 7 1 Press the rotary controller to activate and move the cursor to the icon When the 4E 4 indicates receiver is encrypted icon starts to flash and the word YES appears the Encryption function is ready to Encryption icon starts flashing ma indicates receiver is not encrypted be set 2 Press and hold the rotary controller for approximately 3 seconds until the word changes from YES to NO 3 Press the rotary controller once to confirm and save the selected NO to turn off the Encryption Transmitter now needs to be re synced using ACT to turn transmitter encryption OFF E PUSH FOR MODE NY ACT lt 4 PARAMETER N Press amp hold to encrypt or decrypt Encryption Setup Flow Chart Encryption Press ACT TX Encrypted No gt YES Button ENCRYP No Encryption Press ACT TX Not Encrypted YES No Button ENCRYP Yes Encrypted Not Encrypted Aim TX to ACT Button Encryption Instructions Hold for 2 3 Seconds 1 Press the rotary controller to activate and m
8. USHI FOR MODE l ACT lt 4 PARAMETER N Rotate for ON or OFF To Lock Receiver 1 Press the rotary controller to activate and move the cursor to thef icon When thef icon starts to flash the Lock function is ready to be set Rotate the rotary controller clockwise or counterclockwise to the ON position Press the rotary controller once to confirm and save the selected ON to lock all parameters NOTE When locked the receiver parameters can no longer be changed except this one However you can still navigate to view existing settings and parameters To Unlock Receiver 1 2 Press the rotary controller to activate and move the cursor to thefmicon When the icon starts to flash the Lock function is ready to be set Rotate the rotary controller clockwise or counterclockwise to the OFF position 3 Press the rotary controller once to confirm and save the selected OFF to unlock all A icon illuminated Parameters locked nof parameters Changes can now be made normally icon Receiver not locked MIPRO S Proprietary ACT Function and Operation What is ACT ACT stands for Automatic Channel Targeting MIPRO developed and patented this innovative InfraRed IR technology in 2001 MIPRO was the first manufacturer in the industry to automatically synchronise the frequency selected on the receiver to any ACT handheld or bodypack transmitt
9. ansmitter is powered on to 5 i indicate the receiver is ready for operation Once an audio signal is received from 1 Rack Unit Receiver the transmitter the AF audio meter level will also illuminate based on signal level e Install the optional FB 72 rackmount kit amp fasten with screws on both sides Figure If the meter or indicator does not indicate or there is no audio output the system may not be set up properly Re check that the transmitter has fresh batteries and is turned on and the receiver and transmitter are on the same frequency If not the transmitter will need to be set up via the ACT sync function e The microphone output level in normal use should be adjusted at the amplifier or mixer There is no need to adjust output levels at the receiver itself once initial setup is completed e The antenna inputs provide an 8 volt DC bias and are designed to work with MIPRO antenna boosters and active antennas If the connecting cable is longer than 10 Figure 5 Figure 6 metres approx 30 it is advisable to install an antenna booster to ensure optimum reception Receiver Rack Mount Kits e Antenna dividers and receivers must match the same frequency band i e both should be marked 6B 6C etc Mounts 1 half rack receiver Mounts 1 1 rack receiver into a single rack space into a single rack space e The rack mountable kits are pre drilled with 4 opening holes to be fitted on an EIA standard 19 inch rack case Figure
10. ation e Install 2 separate antennas on the antenna sockets on the rear panel illustrated in Figure 1 Figure 2 Connecting the power supply e AC Power Operation Connect the AC power cable to the AC Input Jack then plug the other end into an AC outlet having the correct voltage and rating See Figure 2 ACT 828 e DC Power Operation Connect the output end of AC DC power supply to DC 12V Input Jack amp then plug the power supply unit into an appropriate AC outlet as shown in Figure 3 Caution Be sure the power supply is connected to an AC outlet with the correct voltage and rating Mr ng e a f GND 2 HOT 3 COLD Figure 3 Figure 4 Audio Output Connection Level Switch Setting Position for Unbalanced Output When connecting from receiver s unbalanced output to the LINE IN jack of a mixer or amplifier or Electric Guitar switch the Level Switch to LINE position Low sensitivity may occur if switch to the wrong level position When connecting from receiver s unbalanced output to the MIC IN jack of a mixer or amplifier switch the Level Switch to MIC position Louder or quieter volume of microphone may occur if switch to the wrong level position When using electric guitar don t use MIC position as it may have generated insufficient level Connection Method of Unbalanced Output When receiver and mixer amplifier is under short distance Or the conn
11. ded LIFT Pin 1 of XLR connector is not grounded GND default value Balanced Audio Output Socket CH2 CH1 3 pin XLR type connector provides balanced audio output signal same as microphone sensitivity level Mic Line Switch CH2 CH1 Controls analog balanced output amp unbalanced output level MIC level is microphone output level 0dB LINE level is auxiliary output Unbalanced Audio Output Jack CH2 CH1 6 3mm 1 4 phone jack type connector provides unbalanced audio output signal Digital Output CH2 CH1 SPDIF Digital Output Network Interface Connector Mipro proprietary comms bus to link receiver s to the optional computer system monitoring program Requires MIPRO Serial or USB adapter included with software package DC Input Jack Accepts 12V DC center pin is positive and sleeve is ground Rear Antenna A Input Connector The A antenna installs directly to this connector and also provides power to an optional antenna booster AT 70B or active antenna AT 90W AT 70W AC Mains Power Socket 100 240V AC Receiver Installation ACT 818 i i BELLEK 7 Co yj a o Te Figure 1 ACT 828 C7 q e TE Figure 2 Antenna Install
12. e capsule presets EQ 09 is user defined and can be programmed by the user However the receiver needs to be set up and interfaced with a PC and MIPRO software before this can be achieved 14 ADD Address Setting for PC Remote Control For normal stand alone use this parameter does not need to be set However when multiple receivers are to be used and controlled remotely using the MIPRO optional control software each receiver must be given a unique address Always ensure that you set this address before adding the receiver to the remote control network ADD cursor starts flashing Em PUSH FOR MODE ACT lt PARAMETER N Rotate clockwise to increase by one number 01 64 Rotate counterclockwise to decrease by one number 64 01 Operating Procedure 1 Press the rotary controller to activate and move the cursor to the ADD parameter When the ADD cursor starts to flash the Address is ready to be set 2 Rotate the rotary controller clockwise to increase the Address number counterclockwise to decrease the Address number 3 Press the rotary controller once to confirm and save the selected Address number NOTE This receiver is equipped with an ACT BUS interface It allows users to use the MIPRO DV interface converter and software sold separately with MIPRO DV for remote PC monitoring It can monitor up to a maximum of 64 channels at the same time The receiver module address can be set from 1 to 64
13. eceiver IR port is located behind the ACT button and indicated by a round dark red dot The transmitter receiver frequency will sync automatically 4 When the frequencies are successfully synchronised the words ACT and Sync will disappear and the RF meter will immediately indicate full RF signal received NOTE If encryption is turned on the ACT function will also send a new encryption key to the transmitter and lock it To unlock the transmitter it is necessary to re sync the transmitter again using ACT with the receiver in Encryption OFF mode 20 BA Transmitter Battery Meter receiver display FEE UL The battery meter illuminates when the transmitter is powered ON The LCD battery meter gives a percentage indication of remaining battery life as shown above Recharge the transmitter battery or replace with a charged battery pack immediately when battery indicators fall to 10 1 bar showing as indicated above 21 Computer Network Interface Operation i MIPRO ACT receivers are fitted with an ACT BUS interface to enable remote control and monitoring via a PC based control system To enable this to communicate an optional MIPRO interface adapter and software package is required Wiring Instructions e Network interfacing of the ACT 818 ACT 828 receivers is achieved via the REMOTE IN of the Network Interface Connector This enables the receiver s to be linked to a computer using a MIPRO DVJ Serial or M
14. ectors of receiver mixer amplifier are PHONE types Using audio output cable attached with PHONE PLUG type connect one end from the unbalanced output jack of the receiver and the other end to the LINE IN input jack of the mixer amplifier as shown in Figure 1 Figure 2 Balanced Output Switch 2 levels of output gain are available LINE or MIC Select the most appropriate output level to interface with your mixer or amplifier If distortion is experienced adjust the level control to a lower setting until the desired output is attained Balanced Output Using audio output cables with 3 pin XLR type connectors connect one end to the balanced output socket of the receiver and the other end to the MIC IN input of the mixer or amplifier as shown in Figure 1 Figure 2 The configuration of the 3 pin connector is as shown in Figure 4 Electric Guitar Output Using an XLR to 1 4 Jack type connector cable use Pins 1 and 2 only connect to guitar input socket on amplifier Make sure that the gain level is set at OdB on both receiver and transmitter Rackmount Installation for Receivers Receiver Operating Tips e Prior to powering on the receiver ensure all transmitters are turned off and the Half Rack Unit Receiver a mixer s volume control is set to minimum e Install the optional FB 71 rackmount kit amp fasten with screws on both sides Figure e Normally the RF meter level illuminates fully when a tr
15. er in the same frequency band ACT Benefits No manual frequency adjusting needed unlike traditional transmitters Simple fast and precise frequency setup without mechanical errors Once the frequency has been set the data is written to memory in the transmitter This ensures that the transmitter frequency now stays with that transmitter That is of course until a change is required By performing the ACT function again the frequency can be re programmed to another Group Channel as necessary ACT Set Up 19 Ensure a receiver channel is set up the transmitter battery is charged and the transmitter is powered ON Press and release the ACT button on the receiver to activate the ACT sync function Once activated the words ACT and Sync will illuminate Move the ACT handheld or bodypack transmitter IR window to within 30cm 12 of the IR port on the receiver The IR port on the receiver is located behind the ACT button itself and is indicated by a round dark red dot The frequency will sync automatically When the frequencies have successfully synchronised between the receiver and transmitter the illuminated ACT and Sync will disappear The RF meter will now illuminate and show full RF strength E3 Mik Eien oO Once ACT button is pressed it YS automatically syncs the selected 4 receiver frequency to any MIPRO x ACT handheld or bodypack transmitter
16. es or anywhere else batteries accumulators are sold By doing so you contribute to the conservation of our environment Contents 1 Product Overview 2 Receiver Controls and Indicators Front Panel 3 Receiver Controls and Indicators Rear Panel 4 Receiver Installation 6 Rackmount Installation for Receivers 7 Receiver Operating Tips 8 Receiver VFD Interface 9 Function Selection 19 MIPRO S Proprietary ACT Function and Operation 22 Computer Network Interface Operation 23 General Tips for Improving System Performance 24 Troubleshooting Product Overview MIPRO s industry leading digital wireless microphone system features compander free technology ensures crystal clear natural vocal reproduction The handheld transmitter microphone is equipped with a premium true condenser microphone capsule and provides warm and accurate transient detail Expanded 64MHz bandwidth ensures optimal flexibility and interference free compatible channels can be operated simultaneously Accessories The following accessories are included Antenna x 2 Power Cable x 1 Phone Cable x 1 N Power Supply x1 Rack mount kit x 1 set ACT 818 ACT 818 User Guide x 1 Q Rack mount kit x 1 set ACT 828 Receiver Controls and Indicators Front Panel ACT 818 iero aseo O Hero Fe O 5 S me 5 ACT 828 MiPRO ACT 828 Front Antenna A B Input Connector Access Allows fitting o
17. ext parameter The selected parameter cursor begins to flash when activated Rotate the rotary controller whilst flashing to change a parameter value To Change Parameters Rotate the rotary controller knob clockwise to increase or counterclockwise to decrease the parameter values To Save Changed Parameters Manually The parameter changes will be saved manually if the rotary controller is pressed after adjusting The cursor stops flashing after the rotary controller is pressed to confirm the change To Save Changed Parameters Automatically The parameter changes will be saved automatically if the rotary controller is not pressed for approximately 5 seconds The cursor also stops flashing after 5 seconds SQ Squelch Setting ll PUSH FOR MODE ACT lt PARAMETER N Rotate clockwise to increase the setting by one bar Rotate counterclockwise to decrease by one bar SQ cursor starts flashing Operating Procedure 1 2 Press the rotary controller to activate and move the cursor to the SQ parameter When the SQ cursor starts to flash the squelch level is ready to be set Rotate the rotary controller clockwise to increase the SQ level counterclockwise to decrease the level Press the rotary controller once to confirm and save the selected SQ level or wait 5 seconds without touching anything and the parameter will automatically be saved NOTE The higher the level indicators the lower the sensitivity
18. f an optional FBC 71 rear to front antenna kit to enable front antenna placement Power Switch and Indicator Powers the receiver on or off When switch is turned on the red indicator illuminates and VFD panel will light up Headphone Jack 1 4 stereo headphone jack to monitor the receiver output signal O 8 8 Headphone Volume Control and Channel Selector Push the knob to select the channel you would like to monitor turn the knob to adjust the volume of the stereo headphone Channel Indicator Indicates the specific channel being monitored Receiver Display Screen Color VFD Vacuum Fluorescent Display ACT Button amp IR Port Press and release ACT button syncs the transmitter and receiver frequency automatically 800 Rotary Knob Selects and sets the parameters Receiver Controls and Indicators Rear Panel ACT 818 gt ACT 828 C 0 0 EDETI oa Rack Mount Brackets Fits into a standard 19 inch rack case Optional MIPRO FBC 71 rear to front cables can be installed for front antenna placement to improve reception quality Rear Antenna B Input Connector The B antenna installs directly to this connector and also provides power to an optional antenna booster AT 70B or active antenna AT 90W AT 70W Lift GND switch CH2 CH1 GND Pin 1 of XLR connector is groun
19. int where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with a cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart A is used use caution when moving the cart apparatus combination to avoid injury from tip over Aca Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Apparatus should not be exposed to dripping or splashing and no objects filled with liquids should be placed on the apparatus Use only with the battery which specified by manufacturer The power supply cord set is to be the main disconnected device WARNING 1 FOR OUTDOOR USE To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture 2 UNDER WET LOCATION Apparatus should not be exposed to dripping or splashing and no objects filled with liquids such as vases should be placed on the apparatus 3 SERVICE INSTRUCTIONS CAUTION These servicing inst
20. n AT 90W wideband active directional antenna the AD 707a antenna divider provides optimal signal reception with minimal dropouts or interference Note that the AD 707a antenna divider must match the same band designation 7A 7B 8A 8B etc as the receiver to ensure proper operation MIPRO s factory preset interference free channels within the same channel group are recommended to ensure optimum performance from multiple wireless systems installed in the same venue Use of preset interference free channels from different channel groups may cause interference due to intermodulation issues and is therefore not recommended Troubleshooting Symptom No Sound Signal Drop outs Solutions Power on receiver amp transmitter Receiver is plugged into a power outlet and cable connected to mixer amplifier Fresh batteries in transmitter and inserted with correct polarity Match receiver amp transmitter frequency Close proximity between the transmitter and receiver antenna Line of sight path between the transmitter and receiver antenna Reposition the receiver and or receiver antennas Receiver antennas are connected Elevate receiver antennas as high as possible Keep hands off of the transmitter antenna Troubleshooting Symptom RF Interference Solutions Press AutoScan button to locate a clear interference free channel Use preset compatible channels in the same group when operating multiple
21. nnel number 3 Press the rotary controller once to confirm and save the selected Channel number or wait for autosave 4 Last Group country dependent may not be GRP 18 is user defined and can store up to 16 frequencies e Turn rotary control to a desired channel control when CH channel starts to flash Flashing indicates it is ready for change e During flashing Turn CH right or left to increase or decrease channel Once desired channel is completed press amp hold the rotary control for few seconds until the frequency starts to flash e Turn rotary control right 1MHz or left 1 MHz will set the parameter left of the period Press to set e Turn rotary control right 25 kHz or left 25 kHz will set the parameter right of the period Press to set e Only channels CH found in last group GRP in each bandwidth can be changed and stored frequencies NOTE When the SQ is set at full level showing 5 bars the AutoScan function will be disabled and the user may freely select any preset group or channel manually Channels in last GRP Group are user defined frequencies Em PUSH FOR MODE lt PARAMETER gt Frequency will flash to denote for parameter change A 1 ANT Antenna A B Setting Used for setup only ANT cursor starts flashing Em PUSH FOR MODE RS lt PARAMETER N This is used primarily to test each remote antenna position for signal strength when setting the
22. ove the cursor to the icon When the icon starts to flash and the word NO appears the encryption function is ready to be set 2 Press and hold the rotary controller for approximately 3 seconds until the word changes from NO to YES 3 Press rotary controller once to confirm and save the selected YES for encryption The transmitter now needs to be synced to the receiver using the ACT function to ncannan apply the encryption 62000 oy gi 1 Aim TX to ACT Button in NOTE be ia ales HE e Encryption is factory set by default to NO in the receiver encryption OFF e The transmitter can only display encryption status and cannot activate de activate encryption e The 128 bit encryption key is randomly generated hence a new secure encryption key is also downloaded to a transmitter each time an ACT function is synced successfully e This means the last encrypted transmitter will work only with the encrypting receiver It also means that previously encrypted transmitters will not work with the encrypting receiver even though they are on the same frequency as there will be no audio output This method also ensures that another similar receiver cannot listen in to the encrypted transmitter 16 17 Parameter Lock f to Lock and Unlock Receiver Parameters om Indicates the receiver is ready to be locked Icon starts flashing FF Indicates the receiver is not locked a P
23. ructions are for use by qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol indicates that dangerous voltage constituting a risk of electric shock is present within this unit This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit IC ID This device complies with RSS 310 of Industry Canada Operation is subject to the condition that this device does not cause harmful interference FCC THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 This device may not cause interference 2 This device must accept any interference including interference that may cause undesired operation of the device This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment Disposal Dispose of any unusable devices or batteries responsibly and in accordance with any applicable regulations Disposing of used batteries with domestic waste is to be avoided Batteries NiCad cells often contain heavy metals such as cadmium Cd mercury Hg and lead Pb that makes them unsuitable for disposal with domestic waste You may return spent batteries accumulators free of charge to recycling centr
24. system up in a venue The Antenna selection is factory set by default to the Auto setting MIPRO recommends that the antenna is always left set to Auto in normal use Operating Procedure Antenna Auto Setting Auto 1 Press the rotary controller to activate and move the cursor to the ANT parameter When the outer ANT cursor starts to flash the antenna indicator is ready to be set 2 Press and hold the rotary controller for 3 seconds until the inner ANT cursor starts to blink 3 Rotate the rotary controller to the Auto position 4 Press the rotary controller once to confirm and save the selected antenna position or wait for auto save Antenna A or B Setting Important Antenna A or B setting is only to be used for testing received signal strength during the sound check Repeated signal dropouts may occur if the receiver is set to just A or B only Thus this setting is not recommended for performance Once antenna testing is complete change back to Auto and store the setting 1 Press the rotary controller to activate and move the cursor to ANT parameter When the outer ANT cursor starts to flash the Antenna is ready to be set 2 Press and hold the rotary controller for 3 seconds until the inner ANT cursor starts to blink 3 Rotate the rotary controller to either antenna A or B 4 Press and release the rotary controller to set the selected antenna position
25. systems Place receivers away or remove the sources of RF interference like solid metal objects electronic equipment amp digital devices dimmers effect equipment motors Avoid operating a frequency on a local TV channel A higher squelch setting improves protection against interference however resulting in limited range Turn off one transmitter if both transmitters are operating on the same frequency Fresh batteries in transmitter Limited Range Close proximity between the transmitter and receiver antenna Adjust antenna orientation Reposition the receiver and or receiver antennas Receiver antennas are connected Undamaged antennas Fresh batteries in transmitter Adjust for proper squelch level setting Feedback No RF Signal e Match receiver amp transmitter frequency e Adjust for proper squelch level setting Distortion e Reduce transmitter gain if set too high Recommendation set to OdB Mic Level Reduce receiver output setting Proper setting on mixer input gain or integrated amplifier mic level control Fresh batteries in transmitter 24 25 Turn down the sound system volume Move microphone closer to the performer s mouth Reduce transmitter gain if set too high Position microphone further away from the speakers Do not point towards speakers Use right type of microphone for the specific applications Uni Omni Supercardioid Cardioid Power
26. well as a high transmission speed 22 General Tips for Improving System Performance 23 Since the installation of the antenna influences the operating efficiency of the receiver the most important rule is to minimise the distance as much as possible between the receiving antenna and the microphone for the best reception and performance Use MIPRO supplied antennas to ensure proper receiver sensitivity A built in worldwide approved switching power supply assures stable performance in the range of 100 240V AC mains power input The antenna socket provides an 8V DC biased output RF shorting the antenna socket should be avoided Temporary shorts on the antenna socket will not affect system performance provided the short is removed however a continuous short on the socket may cause permanent system damage If extended reception distance is required installing a MIPRO wideband active directional antenna kit AT 90W will increase antenna performance and thus achieve better range Proper antenna distribution is vital to achieving ideal performance from multiple wireless systems operating in the same environment To greatly reduce antenna clutter in multi system installations a MIPRO AD 707a UHF wideband antenna divider system is recommended Each AD 707a supports up to four UHF diversity receivers to operate from a single pair of antennas When combined with an AT 70A omni directional extension antenna and an AT 70B antenna booster or a
27. which shortens the transmission range The lower the level indicators the higher the sensitivity which increases the transmission range However when the SQ is set at full level 5 bars the AutoScan function will be disabled and users can freely select any group or channel manually 10 GRP Group Setting Refer to the supplied channel plan for your band to select a specific frequency m PUSH FOR MODE SS lt 4 PARAMETER N Turn clockwise to increase by one group Turn counterclockwise to decrease by one group GRP cursor starts flashing Operating Procedure 1 alm Press the rotary controller to activate and move the cursor to the GRP parameter When the GRP cursor starts to flash the Group is ready to be set Rotate the rotary controller clockwise to increase the Group number counterclockwise to decrease the Group number Press the rotary controller once to confirm and save the selected Group number or wait for autosave CH Channel Setting Em PUSH FOR MODE L amp S lt 4 PARAMETER N CH cursor starts flashing Rotate the controller to AutoScan for an open interference free preset channel Operating Procedure 1 Press the rotary controller to activate and move the cursor to the CH parameter When the CH cursor starts to flash the Channel is ready to be set 2 Rotate the rotary controller clockwise to increase the Channel number counterclockwise to decrease the Cha
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