Mipro Electronics Co MI909T18 Wireless Digital Stereo Transmitter User Manual MI 909T 2CE497B x3 201410
Mipro Electronics Co Ltd Wireless Digital Stereo Transmitter MI 909T 2CE497B x3 201410
Users Manual
WARNING ! IMPORTANT SAFETY INSTRUCTIONS ! 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. 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. 10. Protect the power cord from being walked on or pinched particularly at plug, convenience receptacles, and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. 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. 15. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. 16. Apparatus should not be exposed to dripping or splashing and no objects filled with liquids, should be placed on the apparatus. 17. Use only with the battery which specified by manufacturer. 18. The power supply cord set is to be the main disconnected device. 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 instructions 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. 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. 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 harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This device complied with FCC radiation exposure limits as set forth for an uncontrolled environment. This device should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other antenna or transmitter FCC Caution: To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. (Example - use only shielded interface cables when connecting to computer or peripheral devices). IC This device complies with Industry Canada’s RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage; (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter Contents Profile Profile Thank you for choosing a MIPRO IEM product. Front Panel Controls and Indicators Rear Panel Connectors Operating Instructions LCD Panel Operating Instructions This industry's first digital IEM system is engineered to meet the stringent requirements demanded in professional touring and installation applications. Featuring digitally encrypted technology and unparalleled digital audio performance and transmission reliability, superior frequency response characteristics from 20Hz low-frequency sound clearly exceeds analog IEM systems currently on the market. 25 MIPRO's Proprietary ACT Sync Function 27 Network Connection 28 Rackmount Kit 29 Cautions & Recommendations To prevent possible hearing damage, do not listen at high volume levels for long periods. 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! 2005-08-13 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 centres or anywhere else batteries/accumulators are sold. By doing so, you contribute to the conservation of our environment! Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter Rack Transmitter Rack Transmitter Front Panel Controls and Indicators Rear Panel Connectors AF L R EQ GR CH LINE 02 03 520.500MHz 4 5 10 11 12 13 14 15 Power Button: Press to turns the unit on and off. Antenna Connector (TNC): Attach supplied antenna. Headphone Monitoring: Insert a 6.3φ mm headphone here. 10 ACT Bus: Attach supplied ACT Bus cable for remote control option. Headphone Volume: Adjust for volume loudness. 11 Left Audio Indicators: The red Peak LED indicates the inputs are overdriven. LOOP OUT Left: Sends a copy of the audio signal going into the transmitter to another device. Right Audio Indicators: The red Peak LED indicates the inputs are overdriven. 12 LOOP OUT Right: Sends a copy of the audio signal going into the transmitter to another device. 13 Audio Inputs Left (Mono): Connect to balanced or unbalanced outputs. Accepts both 1/4-inch or male XLR connectors. 14 Audio Inputs Right: Connect to balanced or unbalanced outputs. Accepts both 1/4-inch or male XLR connectors. 15 12~15V DC Power: Connect the transmitter to a power outlet using the supplied power plug & cable. Front Panel Screen: Display settings and parameters. ACT Sync Button & Window: Press ACT button to sync frequency from transmitter to bodypack receivers. Control Knob: For setting changes. The MI-909 system consists one MI-909T digital rack unit stereo transmitter and will transmit to one or more MI-909R digital stereo bodypack receivers. Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter Operating Instructions 4. Power Connect the transmitter to a power outlet using the supplied power plug & cable. 1. Rear Antenna Installation Attach supplied antenna to the transmitter. Ensure the antenna and transmitter have the same frequency band for optimal transmitting efficiency 5. Power Button Press to turns the unit on and off. 6. Audio Inputs Stereo or Mono outputs. Left audio input for Mono. Accepts both 1/4-inch or male XLR connectors. 7. Headphone Monitoring Insert a 6.3φmm headphone here. 2. Front Antenna Installation Install an option FB-71 rear-to-front rackmount kit with cable. Attach supplied antenna to the front for improved optimal transmitting efficiency. WARNING: To prevent possible hearing damage, do not listen at high volume levels for long periods. 3. External Antenna Installation Install optional MIPRO AT-100 & MS-90 antennas with microphone stands and high quality coaxial cable for improved performance. Ensure antennas are installed and positioned higher than the crowds and away from obstructions. Wall-mounted AT-100 + MS-90 Mic stand AT-100 + MS-90 Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter LCD Panel Operating Instructions 3. Listed Menus 1. Main LCD Screen provides access to menus and displays a summary of transmitter settings A4 AF A5 A6 A7 A8 A9 L R EQ GR CH LINE 02 03 520.500MHz A1 A2 > GROUP & CHANNEL USER FREQUENCY > RF POWER AF SENSITIVITY A3 A1 GR: Group A6 EQ icon: Equalizer A2 CH: Channel A7 Lock Icon A3 Working Frequency in MHZ A8 Encryption key Icon A4 A9 RF output Icon AF: Audio Frequency > AF INPUT SOUND MODE A5 Left Right Channel > EQUALIZER NAME SETTING AF L R EQ LINE GR CH 02 03 520.500MHz > NET ADDRESS SET LOCK Control Knob > ENCRYPTION SECURE KEY 2. Control Knob: Menu Settings A. Operating Instructions: a. Press & release Control Knob to access menus. > FREE SCAN EXIT & SAVE b. Turn right or left to access specific menus. Press to confirm setting changes. Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (1) GR CH: GROUP & CHANNEL Settings (2) USER FRQUENCY Settings GROUP & CHANNEL > USER FREQUENCY > GROUP & CHANNEL USER FREQUENCY GROUP & CHANNEL > 01 02 GROUP & CHANNEL > 01 02 GROUP & CHANNEL > 02 03 USER FREQUENCY > 520.500MHz > GROUP & CHANNEL USER FREQUENCY GROUP & CHANNEL > USER FREQUENCY A. Operating Instructions: A. Operating Instructions: USER FREQUENCY > 521 .500MHz USER FREQUENCY > 521. 525 MHz a. Locate GROUP & CHANNEL menu, press to activate setting. a. Locate USER FREQUENCY menu, press to activate setting. b. Turn left or right for desired GROUP. Press to save. b. Press to enter setting (highlighted in black). Press to save. c. Turn or right for desired CHANNEL. Press to save. c. Frequency selection: adjustable in increments of 1 MHz or 25 kHz. d. Once saved, indicator returns to listed menus. d. Once saved, indicator returns to listed menus. Notes: Factory pre-set Group and Channel have corresponding user frequencies. “﹡﹡” signs appear in GR & CH if user frequency are set-up manually. Control Knob Operating Instructions Once a new frequency is set-up, do not forget to align and sync with a bodypack receiver by performing sync protocol by pressing ACT sync button. Press Turn Left or Right Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (3) RF POWER: Radio Frequency (RF) POWER Settings (4) AF SENSITIVITY: Audio (AF) SENSITIVITY Settings USER FREQUENCY > RF POWER RF POWER > AF SENSITIVITY RF POWER > HIGH POWER RF POWER > HIGH POWER AF SENSITIVITY > 0dB RF POWER > RF OFF Highlighted Highlighted Highlighted AF SENSITIVITY > -30dB USER FREQUENCY > RF POWER RF POWER > LOW POWER AF SENSITIVITY > 0dB AF SENSITIVITY > -3dB Highlighted ..... RF POWER > AF SENSITIVITY Highlighted Highlighted A. Operating Instructions: A. Operating Instructions: a. Locate RF POWER menu, press to activate setting. a. Locate AF SENSITIVITY menu, press to activate setting. b. Press to enter setting (highlighted in black). Turn for HIGH POWER, RF OFF or LOW POWER. Press to save. b. Press to enter setting (highlighted in black). Turn for desired parameters. Press to save. c. Once saved, indicator returns to listed menus. c. Once saved, indicator returns to listed menus. Notes: Notes: High power is country dependent. Power levels vary by region or country. Three bar indicators from the SOURCE are optimal. The red clip PEAK LED indicates the inputs are overdriven. Reduce the level at the audio source or change the AF sensitivity setting if 0 dB is still too high. RF OFF enables no RF power emitting without powering off the transmitter. icon: RF POWER setting is OFF. If less than two bar indicators from the SOURCE with -30 dB setting, change AF icon: RF POWER setting is LOW. INPUT to MIC LEVEL to improve AF input sensitivity level. icon: RF POWER setting is HIGH. RF OFF AF MIC icon LOW POWER GR CH 02 03 520.500MHz HIGH POWER AF MIC AF L R EQ LINE L R EQ icon GR CH 02 03 520.500MHz icon L R EQ GR CH 02 03 520.500MHz 10 11 Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (5) AF INPUT: Audio (AF) INPUT Settings (6) SOUND MODE: SOUND MODE Settings AF SENSITIVITY > AF INPUT AF INPUT > SOUND MODE AF INPUT > LINE LEVEL AF INPUT > LINE LEVEL AF INPUT > MIC LEVEL Highlighted Highlighted SOUND MODE > STEREO SOUND MODE > STEREO SOUND MODE > MONO Highlighted AF SENSITIVITY > AF INPUT Highlighted AF INPUT > SOUND MODE A. Operating Instructions: A. Operating Instructions: a. Locate AF INPUT menu, press to activate setting. a. Locate SOUND MODE, press to activate setting. b. Press to enter setting (highlighted in black). Turn for LINE LEVEL or MIC LEVEL. Press to save. b. Press to enter setting (highlighted in black). Turn for STEREO or MONO. Press to save. c. Once saved, indicator returns to listed menus. L R L X icon: STEREO. icon: MONO. c. Once saved, indicator returns to listed menus. Notes: Select appropriate output device with proper audio input signal strength to avoid distortion when it is set too high and deteriorated S/N ratio when it is set too low. AF MIC AF LINE Note: Plug AF IN (L) only for MONO sound. icon: MIC LEVEL. icon: LINE LEVEL. L R STEREO MIC LEVEL AF AF MIC icon LINE LEVEL AF L R EQ GR CH MIC 02 03 520.500MHz AF LINE icon AF MIC 12 13 MONO L R EQ GR CH 02 03 520.500MHz L R EQ GR CH LINE 02 03 520.500MHz L X icon icon AF L X EQ LINE GR CH 02 03 520.500MHz Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (7) EQUALIZER: EQUALIZER Settings A. Operating Instructions SOUND MODE > EQUALIZER a. Locate EQUALIZER, press to activate setting. b. Press to enter setting (highlighted in black). Turn for FLAT→LOW BAND→MID BAND→HI BAND→SET EXIT. Press to save. EQUALIZER > FLAT ON EQUALIZER > FLAT ON EQUALIZER > LOW BAND=-9dB EQUALIZER > LOW BAND=-9dB ..... EQUALIZER > FLAT OFF FLAT: FLAT ON or FLAT OFF. LOW BAND/ MID BAND/ HI BAND: -9dB to +9dB: adjustable in increments of 3 dB. EQUALIZER > LOW BAND=-6dB SET EXIT: Press SET EXIT to return to main LCD screen. c. Once save, press SET EXIT to return to listed menus. ..... EQUALIZER > LOW BAND=+9dB Notes: EQUALIZER > MID BAND=0dB EQUALIZER > MID BAND=-9dB EQUALIZER > MID BAND=-6dB EQ EQ icon: FLAT ON. icon: FLAT OFF. ..... EQUALIZER > MID BAND=+9dB EQUALIZER > HI BAND=+9dB EQUALIZER > HI BAND=-9dB ..... EQUALIZER > HI BAND=-6dB EQ FLAT ON ..... AF MIC EQ icon L R EQ GR CH 02 03 520.500MHz EQUALIZER > HI BAND=+9dB EQUALIZER > SET EXIT SOUND MODE > EQUALIZER MID BAND=+9dB 14 15 FLAT OFF AF L R EQ LINE icon GR CH 02 03 520.500MHz Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (8) NAME SETTING: NAMM SETTING Settings A. Operating Instructions EQUALIZER > NAME SETTING a. Locate NAME SETTING menu, press to activate setting. b. Press to enter setting (highlighted in black). Turn for DISPLAY ON →EDIT: 00MIPRO!00 →SET EXIT. NAME SETTING > DISPLAY ON NAME SETTING > DISPLAY ON NAME SETTING > DISPLAY OFF DISPLAY: Turn for DISPLAY ON or DISPLAY OFF. EDIT: Up to 10 alphanumeric characters and symbols. SET EXIT: Press SET EXIT to return to main LCD screen. NAME SETTING > DISPLAY ON NAME SETTING > EDIT: 00MIPRO!00 NAME SETTING > ./ 0 12 0 0 MIPRO!00 c. Once save, press SET EXIT to return to listed menus. Note: NAME SETTING > KL M NO 00 M IPRO!00 DISPLAY ON – Alphanumeric characters are shown. ..... NAME SETTING > EDIT: 00MIPRO!00 DISPLAY “ON” NAME SETTING > SET EXIT AF MIC DISPLAY “OFF” AF L R EQ GR CH 02 03 00MIPRO!00 Displays alphanumeric characters EQUALIZER > NAME MID BAND=+9dB SETTING 16 17 L R EQ GR CH MIC 02 03 520.500MHz Display User Frequency Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (10) SET LOCK Settings (9) NET ADDRESS Settings: For PC control network : For front panel lock NET ADDRESS > SET LOCK NAME SETTING > NET ADDRESS NET ADDRESS > 01 NET ADDRESS > 01 NET ADDRESS > 64 NAME SETTING > NET ADDRESS NET ADDRESS > 02 SET LOCK > UNLOCK SET LOCK > UNLOCK SET LOCK > LOCK ..... NET ADDRESS > SET LOCK A. Operating Instructions: A. Operating Instructions: a. Interface with ACT-BUS for pc-control network. Can monitor up to 64 channels. a. Locate SET LOCK menu, press to activate setting. b. 01~64 transmitter addresses can be setup and monitor via an optional PCcontrol software remotely. All transmitters must be connected to a dedicated address for network identification. b. Press to enter setting (highlighted in black) for UNLOCK or LOCK. Press to save. c. Locate NET ADDRESS menu, press to activate setting. icon: UNLOCK. icon: LOCKED. c. Once save, press to return to listed menus. d. Press to enter setting (highlighted in black). Press to save. d. Once icon appears the panel is locked. No new settings can be changed. Need to unlock the panel first prior to make new setting changes. e. Once saved, indicator returns to listed menus. icon: LOCKED AF 19 AF L R EQ GR CH LINE 02 03 520.500MHz 18 icon: UNLOCK L R EQ GR CH LINE 02 03 520.500MHz Digital Stereo Rack Transmitter (11) ENCRYPTION Digital Stereo Rack Transmitter : To add encryption or decryption (12) SECURE KEY Settings: Adding encryption key option SET LOCK > ENCRYPTION ENCRYPTION > OFF ENCRYPTION > SECURE KEY ENCRYPTION > OFF ENCRYPTION > ON SECURE KEY > STATIC SET LOCK > ENCRYPTION SECURE KEY > STATIC SECURE KEY > SCROLL ENCRYPTION > SECURE KEY A. Operating Instructions: A. Operating Instructions: a. Locate ENCRYPTION menu, press to activate setting. a. Locate SECURE KEY menu, press to activate setting. b. Press to enter setting (highlighted in black) for ON or OFF. Press to save. b. Press to enter setting (highlighted in black) for STATIC or SCROLL. Press to save. STATIC icon: No new encryption key is generated each time the ACT sync button is pressed. icon: Encryption key is ON No icon: Encryption key is OFF (not activated) SCROLL icon: A new encryption key is generated each time the ACT sync button is pressed. c. Once save, press to return to listed menus. ** Be sure to press ACT button for synchronization from transmitter to bodypack receiver after each time an Encryption is activated. c. Once save, press to return to listed menus. d. 128bit encryption key is generated randomly and very difficult to break or crack for eavesdropping occurrences. d. After a new encryption key is added to the transmitter, the transmitter frequency is no longer valid and compatible with existing bodypack receivers. To be compatible, perform the ACT sync function. Notes: STATIC encryption method is ideal for one transmitter to multiple receivers. icon: ENCRYPTION ON AF L R EQ LINE GR CH 02 03 520.500MHz No icon: ENCRYPTION OFF AF L R EQ LINE GR CH 02 03 520.500MHz SCROLL encryption method is ideal for one transmitter to one receiver. 20 21 Digital Stereo Rack Transmitter STATIC: existing encryption AF SCROLL: new encryption AF L R EQ GR CH LINE 02 03 520.500MHz icon Digital Stereo Rack Transmitter (13) FREE SCAN Settings: SCAN for an interference-free transmitter channel L R EQ GR CH LINE 02 03 520.500MHz SECURE KEY > FREE SCAN icon FREE SCAN > 01 01 512.000MHz FREE SCAN > 01 01 512.000MHz FREE SCAN > 01 02 502.125MHz ..... Receiver Transmitter RX1 Transmitter FREE SCAN > 01 08 502.125MHz Receiver SECURE KEY > FREE SCAN A. Operating Instructions: a. Locate FREE SCAN menu, press to activate setting. RX2 b. Press to enter setting (highlighted in black). Turn left or right to scan for an open Channel within the specified Group. Press to save. c. Once save, press to return to listed menus. RX3 STATIC encryption mode is ideal for multiple receivers d. FREE SCAN scans for an interference-free channel within the specified Group only. e. Use FREE SCAN to analyze the RF environment for interference and identify available frequencies. During scanning process the transmitter stops transmission. When no interference-free channel is located, it reverses automatically back to the original channel. SCROLL encryption mode is ideal for a single receiver Note: When performing a FREE SCAN Turn on potential sources of interference such as other wireless systems or devices, computers, CD players, large LED panels, effects processors, and digital rack equipment so they are operating as they would be during the presentation or performance (so the scan will detect and avoid any interference they generate). 22 23 Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter (14) EXIT & SAVE Settings: Save changes and exit FREE SCAN > EXIT & SAVE AF MIPRO's Proprietary ACT Sync Function What is ACT ? L R EQ GR CH MIC 02 03 520.500MHz 1. ACT is short for Automatic Channel Targeting. ACT is a proprietary sync technology developed first by MIPRO in the professional audio industry. Consequently, ACT sync has become an industry-standard for fast, easy and precise frequency synchronization between transmitter and receiver. A. Operating Instructions: a. Press to exit and return to the main LCD screen. Features 1. Frequency do not require an external tool for adjustment. 2. Precise and fast synchronization. 3. Frequency is synchronized and saved and ready for repeat usage. Operating Instructions? 1. Press the ACT sync button on the rack transmitter to start the synchronization. 2. ACT SYNC word with moving “….” appears on the rack transmitter screen. 3. Align the ACT sync windows of both receiver & transmitter within 30cm. 4. ACT SYNC word with moving “…”disappears during a successful sync and returns back to main LCD screen. 5. ACT FAIL appears during a failed sync. 6. Repeat step 1 to 5. AF L R EQ GR CH LINE 02 03 520.500MHz < 30cm (12 in.) Press ACT sync button to synchronize frequency & encryption key to bodypack receiver. 24 25 Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter Network Connection (14) ACT Synchronization Network Interface 1. See connection diagram below for connection from REMOTE connectors located at the rear panel of the transmitter via RS-232 or USB connection to RS-232 COM PORT or USB PORT. AF L R EQ GR CH LINE 01 01 512.000MHz Wiring Instructions Connect to keyboard jack on PC Press ACT sync button Connect to RS-232 jack on PC PC ACT SYNC . . . . . . . . > 01 01 512.000MHz Connector of keyboard should plug in here During Synchronization… MIPRO DVJ OR Connect to USB MIPRO DVU jack on PC ACT FAIL > 01 01 512.000MHz ACT FAIL appears during a failed synchronization TX1 A. Operating Instructions: a. Press the ACT sync button on the transmitter to activate the synchronization. b. Align the ACT sync windows of both transmitter and receiver within 30cm (12-inch) and 10 seconds. TX2 c. During syncing, the transmitter LCD screen display is flashing "ACT SYNC ...” . d. If synchronization is done successfully, the transmitter LCD return to the main screen. TX3 e. If synchronization is done unsuccessfully, it displays SYNC FAIL. Repeat steps 1-4 until is done successfully. 1. Connect REMOTE OUT to REMOTE IN of another transmitter for interconnection of other transmitters. First transmitter (TX) 1, connect REMOTE IN to a MIPRO-DV. 2. Up to 64 transmitters can be linked and connected. ** During ACT sync, the frequency is synchronized from transmitter to receiver. Other setting as an encryption key (SCROLL or STATIC) is also synchronized during the transfer. 3. Up to 300 meters of internet connection is possible. However, we recommend for up to 100 meters to ensure optimal performance and quality of high-speed transmission. 26 27 Digital Stereo Rack Transmitter Digital Stereo Rack Transmitter Rackmount Kit Cautions & Recommendations Rack-mounting a 1/2 rack unit Rack-mount with an optional FB-71 rack-mount kit and fasten accordingly. Do not use the same frequency bands when mixing MIPRO IEM and MIPRO wireless microphone systems to avoid potential interferences. When using RG-58 or 3D cable, do not exceed 5 meters and use 50Ω coaxial cable to transmit signals to the external antenna. If possible, maintain line-of-sight between transmitter and receivers for optimal reception quality during outdoor or indoor performances. Indoor reception quality tend to degrade due to obstacles and objects absorbing radio waves making the reception distance shorter compared with outdoor performances. Power supply voltage should not be less than 12V and not higher than 15V. Ensure at least 500mA or more output current. Deficient current causes operating voltage instability or malfunction and exceeding current causes shorter the product life cycle and possible short or damaging circuits. Rack-mounting two 1/2 rack units side-by-side Remove top & bottom screws. Note Insert top and bottom plates to joint two transmitters. Fasten screws. Refer to actual product in the event of product description discrepancy. Rack-mount with an optional FB-72 rack-mount kit. Frequency range and maximum deviation comply with the regulations of different countries. 28 29
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