INSTRUCTION MANUAL SMV Series Super Miniature Variable Power Transmitters With Digital Hybrid Wireless® Technology US Patent 7,225,135 SMQV Dual Battery Model l Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com Super-Minature Belt Pack Transmitter General Technical Description Servo Bias Input No Pre-Emphasis/De-Emphasis The voltage and current requirements of the wide variety of electret microphones used in professional applications has caused confusion and compromises in the wiring needed for wireless transmitters. To address this problem, the unique Servo Bias input circuit provides an automatically regulated voltage over a very wide range of current for compatibility with all microphones. Digital Hybrid Wireless® Technology All wireless links suffer from channel noise to some degree, and all wireless microphone systems seek to minimize the impact of that noise on the desired signal. Conventional analog systems use compandors for enhanced dynamic range, at the cost of subtle artifacts (typically “pumping” and “breathing”). Wholly digital systems defeat the noise by sending the audio information in digital form, at the cost of some combination of power, bandwidth and resistance to interference. Digital Hybrid systems overcome channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. This proprietary algorithm is not a digital implementation of an analog compandor but a technique that can be accomplished only in the digital domain, even though the inputs and outputs are analog. Because it uses an analog FM link, the Digital Hybrid system enjoys all the benefits of conventional FM wireless systems and it does away with the analog compandor and its artifacts. +5V 5V Regulator The Digital Hybrid design results in a signal-to-noise ratio high enough to preclude the need for conventional preemphasis (HF boost) in the transmitter and de-emphasis (HF roll off) in the receiver. This eliminates the potential for distortion of signals with abundant high-frequency information. Low Frequency Roll-Off The low frequency roll-off can be set for a 3 dB down point at 35, 50, 70, 100, 120 and 150 Hz to control subsonic and very low frequency audio content in the audio. The actual roll-off frequency will vary slightly depending upon the low frequency response of the microphone. Excessive low frequency content can drive the transmitter into limiting, or in the case of high level sound systems, can even cause damage to loudspeaker systems. The roll-off is normally adjusted by ear while listening as the system is operating. Input Limiter A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection. A dual release envelope makes the limiter acoustically transparent while maintaining low distortion. It can be thought of as two limiters in series, a fast attack and release limiter followed by a slow attack and release limiter. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short term dynamics. +6V Variable 1.8 - 4v Rio Rancho, NM 3 SMV Series Signal Encoding and Pilot Tone In addition to controlling the limiter, the DSP also encodes the digitized audio from the A/D converter and adds an ultrasonic pilot tone to control the squelch in the receiver. A pilot tone squelch system provides a reliable method of keeping a receiver output muted (audio mute) even in the presence of significant interference. When the system is operating in the hybrid mode, a different pilot tone frequency is generated for each carrier frequency to prevent inadvertent squelch problems in multi-channel sytems. Microprocessor Control A microprocessor monitors user command inputs from the control panel buttons and numerous other internal signals. It works intimately with the DSP to ensure the audio is encoded according to the selected Compatibility Mode and that the correct pilot tone is added to the encoded signal. Compatibility Modes SM transmitters are designed to operate with Lectrosonics Digital Hybrid receivers and will yield the best performance when doing so, however, due to the flexibility of digital signal processing, the transmitter can also operate in various compatibility modes for use with Lectrosonics 200 Series, Lectrosonics 100 Series, IFB and certain non-Lectrosonics receivers. Contact the Lectrosonics sales department for more information about non-Lectrosonics receivers. Battery Options and Operating Time Switching power supplies convert regulated battery voltages to operate various circuit stages with maximum efficiency. The firmware “remembers” the power status when a battery fails, so the transmitter will be turned on automatically when the battery is replaced and the previous settings will be enabled. Frequency Blocks Lectrosonics established a “block” numbering system years ago to organize the range of frequencies available from the low end at 470 MHz band to the upper end at 952 MHz. Each block (except 944) includes 256 frequencies in 100 kHz steps, which is the maximum switching range of the transmitters. Block 944 is a special band between 944 and 952 MHz. Circulator/Isolator The RF output circuit includes a one way circulator/isolator using a magnetically polarized ferrite. This device greatly reduces RF intermodulation produced when multiple transmitters are used in close proximity to one another (several feet apart). The isolator also provides additional RF output stage protection against static shock. Control Panel The control panel includes four membrane switches and an LCD screen to adjust the operational settings. Multicolor LEDs are used to indicate audio signal levels for accurate gain adjustment and for battery status. Wide-Band Deviation ±75 kHz deviation improves the signal to noise ratio and audio dynamic range of a wireless system dramatically, compared to other designs that use ±30 kHz to 40 kHz deviation. Wide deviation combined with a high powered transmitters makes a significant improvement in signal to noise ratio and operating range. Variable Power Output This advanced feature allows the operator to optimize the transmitter for maximum battery life, or for maximum operating range. Power output is selected using the LCD in a setup mode while the RF output of the transmitter is turned off. 4 LECTROSONICS, INC. Super-Minature Belt Pack Transmitter Controls and Functions Modulation LEDs Modulation LEDs LCD Battery Compartment Cover Plate UP Arrow Antenna Jack Audio Input Jack Battery Compartment Thumb Screw DOWN Arrow PWR LED AUDIO Button FREQ Button LCD Screen Power LED The PWR LED glows green when the battery is good. The color changes to red when there is about 30 minutes of operation left with the recommended lithium battery. When the LED begins to blink red, there are only a few minutes of life. The exact point at which the LED turns red will vary with battery brand and condition, temperature and current drain. The LED is intended to simply catch your attention, not to be an exact indicator of remaining time. Varies Green Voltage It is important to set the gain (audio level) high enough to achieve full modulation during louder peaks in the audio. The limiter can handle over 30 dB of level above full modulation, so with an optimum setting, the LEDs will flash red during use. If the LEDs never flash red, the gain is too low. In the table below, +0 dB indicates full modulation. Signal Level The LCD is a numeric-type Liquid Crystal Display with screens for adjusting power, frequency, audio level and low frequency audio roll-off. The transmitter can be powered up with or without the RF output turned on. A countdown appears in the LCD when powering on and off, allowing the transmitter to be turned on without RF for adjustments, and to prevent accidentally turning it off with momentary button presses. 1.6 1.4 1.2 1.0 .8 Proper input gain adjustment is critical to ensure the best audio quality. Two bicolor LEDs will glow either red or green to accurately indicate modulation levels. The input circuitry includes a wide range DSP controlled limiter to prevent distortion at high input levels. Red Blink -20 LED -10 LED Less than -20 dB Off Off -20 dB to -10 dB Green Off -10 dB to +0 dB Green Green +0 dB to +10 dB Red Green Greater than +10 db Red Red AUDIO Button The AUDIO button is used to display the audio level and low frequency roll-off settings. The UP and DOWN arrows adjust the values. The AUDIO button is also used with the FREQ button to enter standby mode and to power the transmitter on or off. FREQ Button The FREQ Button displays the selected operating frequency and toggles the LCD between displaying the actual operating frequency in MHz and a two-digit hexadecimal number that corresponds to the equivalent Lectrosonics Frequency Switch Setting. Up/Down Arrows The Up and Down arrow buttons are used to select the values on the various setup screens and to lock out the control panel. Hours 2 4 6 8 A weak battery will sometimes cause the PWR LED to glow green immediately after the transmitter is turned on, but will soon discharge to the point where the LED will turn red or the unit will turn off completely. Antenna The transmitter uses a whip antenna with a flexible woven, galvanized steel mesh cable and a standard SMA connector. Audio Input Jack The Servo Bias input circuitry accommodates virtually every lavaliere, handheld or shotgun microphone available, plus line level signals. Battery Compartment and Thumb Screw The large knurled thumbscrew is used to release or secure the Battery Compartment Cover Plate. Rio Rancho, NM 5 SMV Series Battery Installation We recommend using lithium batteries for longest life. Refer to the battery life listings in the specifications. Batteries are inserted (+) end first on both single and double battery models. To install new batteries: 1. Turn the Battery Cover Plate Thumbscrew counterclockwise a few turns until the door will rotate. If you continue to rotate the thumbscrew, the door will separate from the transmitter. 2. Insert the new batteries into the housing. The positive (+) battery terminal goes into the transmitter first. 3. Align the Battery Cover Plate and tighten the Battery Cover Plate Thumbscrew. Apply pressure to the cover plate to press the batteries into the housing while rotating the thumbscrew to tighten the cover plate flush to the housing. Polarity engraved into housing Attaching and Removing the Microphone The flexible sleeve over the 5-pin plug on the microphone helps prevent dust and moisture from getting into the input jack. The flange around the rim of the connector on the transmitter helps retain the sleeve after it is installed and The following procedure simplifies the attachment and removal of the microphone to assure the sleeve is seated securely. Align the pins on the plug and jack and insert the connector. 1 If the sleeve is pulled down and covering the connector, squeeze the end of the sleeve so you can feel the connector inside and press it into the jack until it latches. 2 Kevlar covered vent Pinch and squeeze the sleeve on this end to work it down over the flange. Pinch and squeeze the sleeve near the flange and work it down with a kneading motion over the flange all the way around until it stays in place flush with the housing. Pull on the connector to make sure it is firmly latched. To remove the connector, pull the sleeve back to expose the black release button. Press the button to unlatch the plug. 3 Release button Two battery compartments (SMQV) 6 LECTROSONICS, INC. Super-Minature Belt Pack Transmitter Operating Instructions Power Up and Boot Sequence 1) Ensure that good batteries are installed in the unit. 2) Simultaneously press and hold the AUDIO and FREQ buttons until the Power On Boot Sequence is initiated. LCD Backlight Settings The LCD backlight can be set to turn off after either 5 minutes or 30 seconds or stay on continuously. Hold the UP arrow in while powering up the unit to enter the setup screen. Press the AUDIO button repeatedly to step through the setup items to reach the backlight settings screen. Use the UP or DOWN arrow button to select the desired setting. The count will progress from 1 through 3 and the unit will then power up with the RF output turned on. During this turn on sequence, the modulation and power LEDs all glow red, then green, and then revert to normal operation. The LCD displays a bootup sequence which consists of four screens: Company Name: Lectro Frequency Block (bXX) and Firmware Version (rX.X): b21r1.1 (typ) Power Level Pr 250 Compatibility Mode: CP 400 (typ) Audio: Aud 12 (typ) Selecting the Compatibility Mode and Output Power 400 Series or Digital Hybrid Wireless™ compatibility mode Power Down Power setting Initial Power Off Timer Screen 1) Simultaneously press and hold the AUDIO and FREQ buttons while observing that the word “Off” appears in the LCD along with a counter. 2) When the counter reaches “0”, the unit turns off. Note: If the AUDIO and FREQ buttons are released before the LCD goes blank at the end of the countdown, the unit will not turn off. Instead, it will stay energized and the display will return to the previous screen. Standby Mode With the power turned off, pressing the AUDIO and FREQ buttons briefly places the unit in Standby Mode. In Standby Screen this mode the RF output is turned off so all setup adjustments can be made without interfering with other systems operating in the same location. The screen displays “rf OFF” to remind the user that the unit is not transmitting. While the unit is in the standby mode, access the setup screens using the AUDIO and FREQ buttons and make adjustments using the Up and Down arrows. The transmitter will work with 200 Series, 100 Series and IFB analog receivers, plus some other analog wireless receivers in addition to the native digital hybrid mode. Note: The unit automatically enters the Standby Mode when selecting compatibility. 1) Set the receiver’s audio controls to minimum. 2) From a power off condition, hold down the Up arrow, then simultaneously press the AUDIO and FREQ buttons. 3) Press either AUDIO or FREQ button to select the compatibility screen and use the Up and Down arrows to select the desired mode. Power Restore Screens The following Compatibility Modes are available: • 100 Series mode: CP 100 • 200 Series mode: CP 200 • Mode 3 (contact the factory for details): CP 3 • 400 Series mode: CP 400 • IFB Series mode: CP IFB • Mode 6 (contact the factory for details): CP 6 4) Press either AUDIO or FREQ button to select the power setting screen and use the Up and Down down arrows to select the desired level of power. 5) Simultaneously press the AUDIO and FREQ buttons to exit this mode and turn off the power.` Rio Rancho, NM 7 SMV Series Audio Screen The Audio screen is used to adjust input gain from 0 to +44 dB, and the low frequency roll-off from 35 to 150 Hz. Repeatedly pressing the AUDIO button toggles back and forth between the two displays. Press and hold the AUDIO button and use the Up and Down arrows to make adjustments. Frequency Screen The Frequency Screen displays the operating frequency in MHz or as a two-digit hexadecimal number that corresponds to the equivalent Lectrosonics Frequency Switch Setting. Repeatedly pressing the FREQ button toggles between the two displays. Press and hold the FREQ button and use the Up and Down arrows to select the frequency. Lock/Unlock Screen Simultaneously pressing and holding both the Up and Down arrow buttons during normal operation starts the Lock timer. The timer starts at three and counts down to zero. When the timer reaches zero, the transmitter’s controls are locked. With the controls locked, the AUDIO and FREQ buttons can still be used to display current settings. Any attempt to change a setting by pressing either the Up or Down arrow button will result in an on-screen Loc reminder that the controls are locked. Remove the batteries to unlock the control panel. Important: Once the transmitter is locked, it cannot be unlocked or powered off using the buttons. The only ways to unlock a locked transmitter are to remove the battery or unlock it via the RM remote control. Remote Control Operation The transmitters can be configured to respond to signals from the RM remote control unit or to ignore them. This setting is accessed by holding down the Down arrow button while Remote Control Screens powering the transmitter on. Use the arrow keys to tog- gle between “rc on” (remote control on) and “rc oFF” (remote control off). The default setting is “rc on.” 8 If a remote control signal is detected but the transmitter is set to “rc oFF”, the message “rc oFF” will be displayed briefly on the transmitter’s LCD, to confirm that a valid signal was received, but that the transmitter is not configured to respond to it. Functions available from the remote control are: • Audio Level • Frequency • Lock/Unlock Buttons • Sleep/Wake (power saving mode) In sleep mode, the transmitter uses only 20% of the normal amount of battery drain. Sleep mode can only be invoked with the remote control, and can only be revoked with the remote control or by removing the battery. When in the sleep mode, the PWR LED blinks green every few seconds to indicate that the transmitter is asleep and not turned off. The RM is not included with SM Series transmitters. Several “Dweedle tones” can also be downloaded from the web site at: http://www.lectrosonics.com/hybrid/rm/rm.html The dweedle tones can be played back through an MP3 player, PDA, etc., and in most cases, will even work with walkie talkies. The tones will not work through the loudspeakers of a sound system because the reflections and reverberation in the room will alter the tones. Configuring for Power Restore When using external power source through a battery eliminator, Power Restore will return your transmitter to settings it had before it was powered off. This eliminates the need to power on through the unit itself. 1) Press and hold the Down Arrow Button then power on the transmitter by pressing the Audio and Freq buttons simultaneously. 2) The LCD will display the status, either “rc ON” or “rc OFF.” Press “AUDIO” or “FREQ” key to scroll to the “PbAc setup screen • PbAc 1 for power restore ON • PbAc 0 for power restore OFF 3) When power restore is set to ON, the unit will turn on whenever power is present at the battery terminals until the power is manually turned off with the control panel switches. NOTE: The firmware “remembers” the power status when a battery fails, so the transmitter will be turned on automatically when the battery is replaced and the previous settings will be enabled. Power Up and Boot Sequence LECTROSONICS, INC. Super-Minature Belt Pack Transmitter Setting Transmitter Operating Frequency The frequency can be displayed either in MHz or as a two-digit hexadecimal number and can be set in Frequency displayed the Standby Mode or when in MHz the transmitter is powered up. The hexadecimal numbering system is unique to Lectrosonics where two Frequency displayed as alphanumeric characters two-digit hexadecimal correspond to the left and number right switch settings on earlier analog transmitters that had mechanical rotary switches to adjust frequency. 1) Press the FREQ button to select either the MHZ screen or the hexadecimal screen. 2) While holding the FREQ button, use the Up or Down arrow buttons to move the operating frequency up or down in 100 kHz increments from the current setting. Note: The operating frequency displayed on the LCD wraps as it reaches the upper or lower end of its range. Most Lectrosonics receivers with an LCD interface indicate the operating frequency both in MHz and as a two digit hexadecimal number. In many cases, it is more convenient to use the two charcter hexadecimal numbers rather than the six character frequency in MHz. Adjusting the Low Frequency Roll-off Repeatedly press the AUDIO button until the LF roll-off adjustment screen appears. Then press and hold the AUDIO button while selecting the desired roll-off frequency with the UP and DOWN arrows. The roll-off frequency can be set to 35, 50, 70, 100, 120 and 150 Hz. Adjusting Audio Level (Gain) The control panel Modulation LEDs indicate the audio level and limiter activity. Once set, the transmitter’s audio level setting should not be used to control the volume of your sound system or recorder levels. This gain adjustment matches the transmitter gain with the microphone’s output level, the user’s voice level and the position of the microphone. The audio input level (gain) is adjusted with the unit in the Standby Mode or while powered up while observing the LEDs. It is desirable to to set the gain so that some limiting occurs on louder peaks. The limiter is very transparent and its effect is not audible until the system is close to overload. In other words, don’t be shy about turning up the gain. Rio Rancho, NM It is actually a good idea to turn the gain up to maximum and listen for distortion or compression to get a feel for how much headroom is available. Signal Level -20 LED -10 LED Less than -20 dB Off Off -20 dB to -10 dB Green Off -10 dB to +0 dB Green Green +0 dB to +10 dB Red Green Greater than +10 db Red Red Note: Different voices will usually require different gain settings, so check this adjustment as each new person uses the system. If several different people will be using the transmitter and there is not time to make the adjustment for each individual, adjust it for the loudest voice. 1) With the transmitter powered off, plug in the microphone and make sure the connector is firmly seated. Warning: If the systems is powered up while connected to a live sound system, be careful to turn the sound system level down first or severe feedback can occur. 2) Place the transmitter in Standby Mode or turn it on for normal use. 3) Position the microphone in the location where it will be used in actual operation. 4) Observe the Modulation LEDs while speaking or singing into the microphone at the same voice level that will be used during use. While holding the AUDIO button, press the UP or DOWN arrow buttons until the both the -20 and -10 LEDs glow green, with the -20 LED occasionally flickering red. This will maximize the signal to noise ratio of the system with full modulation and provide subtle limiting to prevent overload and audible compression. 5) If the unit was set up in Standby Mode, it will be necessary to turn the transmitter off, then power it up again in normal operation so the RF output will be on. Then the other components in the sound or recording system can be adjusted. Locking or Unlocking the Controls The Lock mode protects the transmitter from accidental changes to its settings. Simultaneously press both the Up and Down arrow buttons to start the countdown timer. When the timer reaches zero, “Loc” is displayed and the controls are locked. Settings can be reviewed but not changed. Control Panel Locked Once the transmitter is locked, it cannot be unlocked or powered off using the buttons. The only ways to unlock a locked transmitter are to remove the battery or unlock it using the remote control. The remote control will work only if the transmitter was previously configured to respond to the remote control. The unit will always power up in “unlocked” mode. 9 Super-Minature Belt Pack Transmitter Microphone RF Bypassing Line Level Signals When used on a wireless transmitter, the microphone element is in the proximity of the RF coming from the transmitter. The nature of electret microphones makes them sensitive to RF, which can cause problems with the microphone/transmitter compatibility. If the electret microphone is not designed properly for use with wireless transmitters, it may be necessary to install a chip capacitor in the mic capsule or connector to block the RF from entering the electret capsule. The normal hookup for line level signals is: Signal Hot to pin 5, Signal Gnd to pin 1 and pin 4 jumped to pin 1. This allows signal levels up to 3V RMS to be applied without limiting. If more headroom is needed, insert a 20 k resistor in series with pin 5. Put this resistor inside the TA5F connector to minimize noise pickup. Some mics require RF protection to keep the radio signal from affecting the capsule, even though the transmitter input circuitry is already RF bypassed (see schematic diagram). If the mic is wired as directed, and you are having difficulty with squealing, high noise, or poor frequency response, RF is likely to be the cause. The best RF protection is accomplished by installing RF bypass capacitors at the mic capsule. If this is not possible, or if you are still having problems, capacitors can be installed on the mic pins inside the TA5F connector housing. 2 WIRE MIC 3 WIRE MIC Preferred locations for bypass capacitors SHIELD SHIELD AUDIO AUDIO CAPSULE TA5F CONNECTOR BIAS CAPSULE Alternate locations for bypass capacitors TA5F CONNECTOR Install the capacitors as follows: Use 330 pF capacitors. Capacitors are available from Lectrosonics. Please specify the part number for the desired lead style. Leaded capacitors: P/N 15117 Leadless capacitors:P/N SCC330P All Lectrosonics lavaliere mics are already bypassed and do not need any additional capacitors installed for proper operation. Rio Rancho, NM 11 SMV Series Troubleshooting Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. SYMPTOM POSSIBLE CAUSE TRANSMITTER PWR LED OFF 1) Battery is inserted backwards or dead. 2) Transmitter not powered up. (See Operating Instructions, Power UP and Boot Sequence.) TRANSMITTER PWR LED BLINKS GREEN EVERY FEW SECONDS, TRANSMITTER DOES NOT RESPOND OTHERWISE 1) Transmitter has been put to sleep by the remote control. Either use the remote control to wake it up again or remove and reinsert the transmitter’s battery. AUDIO LEVEL LEDs NOT LIGHTING 1) Gain control set to minimum. 2) Battery is dead or installed backwards. Check PWR LED. 3) Mic capsule is damaged or malfunctioning. 4) Mic cable damaged or mis-wired. RECEIVER RF INDICATOR OFF 1) 2) 3) 4) Transmitter not turned on, or is in Standby Mode. Transmitter battery is dead. Receiver antenna missing or improperly positioned. Transmitter and receiver not on same frequency. Check switches/display on transmitter and receiver. 5) Transmitter and receiver not on same frequency block. 6) Operating range is too great. 7) Defective transmitter antenna. NO SOUND (OR LOW SOUND LEVEL), RECEIVER INDICATES PROPER AUDIO MODULATION 1) Receiver output level set too low. 2) Receiver output disconnected, or cable defective or mis-wired. 3) Sound system or recorder input is turned down. DISTORTED SOUND 1) Transmitter gain (audio level) is far too high. Check audio level LEDs and receiver audio levels during use. 2) Receiver output may be mismatched with the sound system or recorder input. Adjust output level on receiver to the correct level for the recorder, mixer or sound system. (Use the receiver’s Tone function to check level.) 3) Transmitter is not set to same frequency as receiver. Check that operating frequency on receiver and transmitter match. 4) Receiver/Transmitter Compatibility Mode mismatched. EXCESSIVE FEEDBACK 1) Transmitter gain (audio level) too high. Check gain adjustment and/or reduce receiver output level. 2) Talent standing too close to speaker system. 3) Mic is too far from user’s mouth. 20 LECTROSONICS, INC. Super-Minature Belt Pack Transmitter SYMPTOM HISS AND NOISE -- AUDIBLE DROPOUTS POSSIBLE CAUSE 1) 2) 3) 4) 5) Transmitter gain (audio level) far too low. Receiver antenna missing or obstructed. Transmitter antenna broken or missing. Operating range too great. Signal interference. Turn off transmitter. If receiver’s signal strength indicator does not drop to nearly zero, this indicates an interfering signal may be the problem. Try a different operating frequency. “Loc” APPEARS IN DISPLAY WHEN ANY BUTTON IS PRESSED 1) Control Panel is locked. (See Operating Instructions, Locking and Unlocking the Control Panel.) “Hold” APPEARS IN DISPLAY WHEN ARROW BUTTONS ARE PRESSED 1) Reminder that it is necessary to hold down the AUDIO or FREQ button to make adjustments to the audio gain or frequency settings. “PLL” APPEARS IN DISPLAY 1) Indication that the PLL is not locked. This is a serious condition that requires factory repair. It may be possible to operate on another frequency far removed from the one that was selected when the condition was indicated. TRANSMITTER WON’T RESPOND TO REMOTE CONTROL 1) If LCD blinks “rc oFF”, transmitter has not been configured to respond to the remote control. See “Remote Control Operation” on page 7 for instructions on how to configure. 2) If LCD blinks “- - - - - -”, transmitter is already set as requested by the remote control. 3) If transmitter does not respond at all, try moving the remote control closer to the microphone or increasing the remote control’s loudness setting, or increasing the audio level on the transmitter. 4) Make sure volume of RM and proximity of microphone are sufficient to engage transmitter. 5) Make sure transmitter is not in Sleep mode. RM Troubleshooting FREQUENCY CHANGES, BUT NOT TO DESIRED FREQUENCY 1) RM set on different block than transmitter in question. RM uses hex code to set frequency - set RM to proper frequency block, or use hex code method to change frequency. Rio Rancho, NM 21 SMV Series Specifications and Features Operating frequencies: Block 470 470.100 - 495.600 Block 19 486.400 - 511.900 Block 20 512.000 - 537.500 Block 21 537.600 - 563.100 Block 22 563.200 - 588.700 Block 23 588.800 - 607.900 614.100 - 614.300 Low frequency roll-off: (Frequency usage varies by country) Frequency range: 256 frequencies in 100 kHz steps for one 25.5 MHz wide block Channel Spacing: 100 kHz Frequency selection: Control panel mounted membrane switches RF Power output: Switchable; 50, 100 or 250 mW Compatibility Modes (6) Digital Hybrid Wireless® (400 Series), 200 Series, 100 Series, Mode 3 , Mode 6, IFB Pilot tone: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode) Frequency stability: ± 0.002% Deviation: ± 75 kHz max. (in 400 Series Mode) Spurious radiation: 60 dB below carrier Equivalent input noise: –125 dBV, A-weighted Input level: If set for dynamic mic: 0.5 mV to 50 mV before limiting. Greater than 1 V with limiting. If set for electret lavaliere mic: 1.7 uA to 170 uA before limiting. Greater than 5000 uA (5 mA) with limiting. Line level input: 17 mV to 1.7 V before limiting. Greater than 50 V with limiting. Input impedance: Dynamic mic: 300 Ohms Electret lavaliere: Input is virtual ground with servo adjusted constant current bias Line level: 2.7 k Ohms Input limiter: DSP Controlled Soft limiter, 30 dB range Bias voltages: Fixed 5 V at up to 5 mA Selectable 2 V or 4 V servo bias for any electret lavaliere. Gain control range: 44 dB; panel mounted membrane switches Modulation indicators: Dual bicolor LEDs indicate modulation of –20, -10, 0, +10 dB referenced to full modulation. Controls: Control panel with LCD and four membrane switches. The FCC requires that the following statements be included in this manual for the SMV and SMQV: For body worn operation, this transmitter models has been tested and meets the FCC RF exposure guidelines when used with the Lectrosonics accessories supplied or designated for this product. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. Contact Lectrosonics if you have any questions or need more information about RF exposure using this product.. This device complies 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 colocated or operating in conjunction with any other antenna or transmitter. 22 Adjustable from 35 to 150 Hz. +6 Block 24 614.400 - 639.900 Block 25 640.000 - 665.500 Block 26 665.600 - 691.100 +3 0dB Mic in 35 Hz Roll-off -3 Line in -6 Mic in 150 Hz Roll-off -9 -12 30 100 1kHz 10k 20k Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB (The low frequency roll-off is adjustable - see graph above) Signal to Noise Ratio (dB): SmartNR No Limiting w/Limiting (overall system, 400 Series mode) OFF 103.5 108.0 (Note: the dual envelope “soft” NORMAL107.0 111.5 limiter provides exceptionally FULL 108.5 113.0 good handling of transients using variable attack and release time constants. The gradual onset of limiting in the design begins below full modulation, which reduces the measured figure for SNR without limiting by 4.5 dB) Total Harmonic Distortion: Audio Input Jack: Antenna:Flexible, unbreakable steel cable. Batteries: 0.2% typical (400 Series mode) Switchcraft 5-pin locking (TA5F) 1.5 Volt AA lithium Lithium Battery Life: Weight: SMV 50 mW (1 AA): 7.25 hrs SMV 100 mW (1 AA): 5.5 hrs SMV 250 mW (1 AA): 3 hrs SMQV 50 mW (2 AA): 14.5 hrs SMQV 100 mW (2 AA): 14 hrs SMQV 250 mW (2 AA): 7.5 hrs RM: 2.3 oz.. (65.8 grams) with lithium battery SMQV: 3.7 oz.. (105 grams) with lithium batteries Overall Dimensions: RM: 2.3 x 1.8 x 0.64 inches (not including microphone/lanyard) 58 x 46 x 16 mm (not including microphone/lanyard) RM2: 2.125 x 1.25 x 1.125 inches (not including microphone/lanyard) 54 x 32 x 29 mm (not including microphone/lanyard) SMV: 2.3 x 1.8 x 0.64 inches (not including microphone/lanyard) 58 x 46 x 16 mm (not including microphone/lanyard) SMQV: 2.3 x 2.4 x 0.64 inches (not including microphone) 58 x 60 x 16 mm (not including microphone) Emission Designator: 180KF3E Specifications subject to change without notice. The FCC requires that the following statement be included in this manual for the RM: 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 complies with Industry Canada radiation exposure limits as set forth for a controlled “professional” use only. LECTROSONICS, INC.
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