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Model MX692
User Guide
SHURE MX692 WIRELESS BOUNDARY MICROPHONE TRANSMITTER
• Integrated functionality of Microflex
boundary microphone and UC Series
wireless transmitter
• Frequency agile transmitter offers
over 100 user selectable channels for
UA and UB frequency bands; run up
to 32 systems simultaneously
• User programmable touch-sensitive
switch and status LED
• 9V battery-powered with 3-stage
battery life LED indicator
• Thread mount cartridge connection
for easy field replacement
• Interna
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TABLE OF CONTENTS: ENGLISH Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 MX692 Features and Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 MX692 Features and Controls Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Checking and Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Adjusting the Transmitter Gain Level. . . . . . . . . . . . . .
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INTRODUCTION The MX692 wireless boundary microphone is for use in a variety of boardroom, education, government, and house of worship applications that require a clean, cable-free installation. Ad- ditionally, the MX692 is useful in retrofit installations where the modification of existing architec- ture and furnishings is unwelcome, and in facilities where a flexible, mobile audio system is required. The user-programmable mute switch and interchangeable microphone cartridges allow cus- tomizati
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MX692 FEATURES AND CONTROLS 1 Microphone Status LED 1 Microphone is active when lit. 5 2 Programmable Touch-sensitive Switch Touch to mute or activate microphone, 2 depending on logic settings. 3 Power/Battery Life Gauge LED color indicates battery power status. 4 Power On/Off Switch 5 Protective Grille Grille can be removed to access microphone 4 cartridge and DIP switches. 3 English – 3 P • U S H MICROFLEX
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B 7 A 6 9 8 5 7 4 6 5 3 MX692 FEATURES AND CONTROLS CONTINUED To access gain and channel settings, open the battery compartment door. 1 Input Attenuation Control This two position switch lets you select either 0 dB or 20 dB attenuation, depending on the volume of the talker’s voice. 5 2 Transmitter Output Gain Control Changes the audio level to accommodate various input volumes. Use the supplied screwdriver to make adjustments. 3 Channel Setting Control (green dial) Rotating the Channel dia
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B 7 A 6 9 8 5 7 4 6 5 3 CHECKING AND REPLACING THE BATTERY To check the battery charge: 1. Turn the transmitter switch to on 2. Verify that one of the battery power LEDs is glowing (see page 3). 3. The amount of battery life remaining is indicated by which LED is lit, as shown in the following table: Transmitter LED Color Remaining Operating Time Green 2 to 8 hours Amber 45 minutes to 2 hours Red 45 minutes or less Replacing the battery: 3 1 2 For extended performance, use a 9V lithium battery.
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B 7 A 6 9 8 5 7 4 6 5 3 ADJUSTING THE TRANSMITTER GAIN LEVEL If transmitter gain speech. If transmitter output needs to be in- is set correctly, the creased or decreased, adjust the output gain audio LED meter on control. the UC4 receiver Set the input attenuation control switch to 9 should reach amber dB for normal use (default) or -20 dB for loud during normal speech voices (this is rare). and momentarily flash red during the loudest CHANGING THE TRANSMITTER GROUP/CHANNEL SETTINGS For a wirele
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POSITIONING THE MICROPHONE With the standard cardioid cartridge installed, the MX692 will pick up audio at conversational volume levels within 1.5 M (5 ft.) in a 130 degree range. As a general rule, a single microphone should be used for every two people speaking. If a tighter pickup range is required, a supercardioid cartridge may be used. 130° < 1.5M (5 FT.) English – 7
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POSITIONING MULTIPLE MICROPHONES In any installation, good vocal pickup can be achieved by following the positioning rules on page 7. Maintain at least .3 m (1 ft.) separation between transmitters. If you experience transmitter interfer- ence, increase the distance between transmitters, or change the channel of one transmitter/receiver pair. For information on receiver setup and positioning, see the UC4 Wireless System user guide. English – 8
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POSITIONING THE RECEIVER >2 m (5 ft.) <75 m (250 ft.) typical¹ UC4 MX692 The UC4 receiver may be rack mounted. See page 14 for information on systems with multiple transmitters and receivers. ¹ Maximum distance depends on signal absorption, reflection, and interference. English – 9
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REMOVING THE GRILLE 1. Open the battery compartment 5. Insert the screwdriver into the opening above the 2. Remove the battery battery compartment 3. Loosen and remove the screw at the base of the battery compartment 6. Press gently on the underside of the microphone grille with the tip of the screwdriver until the grille pops out 4. Remove the retainer from the top of the micro- phone English – 10
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ADDITIONAL OR REPLACEMENT CARTRIDGES Additional or replacement cartridges may be purchased for the MX692. For more information or to order cartridges, contact the Shure service department or an authorized Shure service center. To replace the microphone cartridge: 1. Remove the grille (see page 10) 2. Loosen the screw and remove the cartridge clamp 3. Twist to remove the existing cartridge 4. Reverse procedure to install new cartridge Omnidirectional Cartridge ....................................
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THE INTERNAL DIP SWITCHES The functionality of the touch-sensitive switch on the microphone’s front panel (see page 3) can be customized using the internal DIP switches. See page 13 for customization options. English – 12
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ON GDH04 1 2 3 4 ON GDH04 1 2 3 4 N GDH04 ON GDH04 O 1 2 3 4 1 2 3 4 CUSTOMIZING MICROPHONE SWITCH FUNCTIONALITY DESIRED SWITCH DESIRED LED FUNCTIONALITY DIP SWITCH SETTING FUNCTIONALITY Push to mute, release to talk (as LED on when microphone is active shipped) Push to talk release to mute LED on when microphone is active Toggle: push on/push off LED on when microphone is active Initially Muted Initially Active Note: switch 4 of the MX692 DIP switch panel is not active English – 13 2C 2C 2C 2C
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TIPS FOR OPTIMUM PERFORMANCE • Maintain a line of sight between transmitter and receiver antennas. • Avoid using the MX692 microphone on metal surfaces. • Avoid placing laptop computers or other obstructions in front of the microphone during use. • The MX692 wireless microphone/transmitter must be used with the Shure UC4 wireless receiver. USING THE MX692 IN LARGE INSTALLATIONS • When using multiple receivers in a single location, use successive channels within the same group. • Use the UA845 UH
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TROUBLESHOOTING If you experience difficulty, check the following: • Make sure both the transmitter and the receiver are turned on. • Check the MX692 battery gauge. Replace the battery if necessary. • Make sure the transmitter and receiver frequency group/channel settings are identical. • Make sure there is an unobstructed line-of-sight between the transmitter and receiver. • If necessary, reposition the receiver, or decrease the distance between transmitter and receiver. • Remove local sources
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SPECIFICATIONS Frequency response (see insert) Temperature Range 50 to 17,000 Hz Operating: (20° to 120° F) Storage: (-20° to 165° F) Polar pattern (see insert) RF Carrier Frequency Range Cardioid (supplied) Current drain 692–716 MHz (UB) 782–806 MHz (UA) 62 ± 10 mA, typical (Vss = 6.0 to 9.6 VDC) Working Ranges Battery life 75 m (250 ft.) typical 7 hours (based on alkaline battery) 250 m (800 ft.) line-of-sight Dynamic range Note: actual working range depends on RF sig- >100 dB minimum, A-weigh
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Mute Circuitry Dimensions, Polar Patterns and Frequency Response 180° 180° 131 mm (5.17 in.) 150° 150° 150° 150° 120° 120° 120° 120° 90° 90° 90° 90° –20 dB –20 dB –15 dB –15 dB 60° 60° 60° 60° –10 dB –10 dB –5 dB –5 dB 30° 30° 30° 30° 0 0 250 Hz 2500 Hz 92 mm (3.625 in.) 500 Hz 5000 Hz 1000 Hz 10000 Hz +20 3 +10 1 0 –10 4 2 -20 29 3 4 5 6 789 2 3 4 5 6 78 46 mm (1.8 in.) 20 50 100 1000 10000 20000 Hz Normal settings UC4 at minimum low frequency setting 1 2 UC4 at maximum high frequency setting
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Audio Circuitry
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SHURE Incorporated http://www.shure.com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Int’l Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055
