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SMWB Series Instruction Manual

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SMWB Series Instruction Manual INSTRUCTION MANUAL SMWB Series Wireless Microphone Transmitters and Recorders SMWB, SMDWB, SMWB/E01, SMDWB/E01, SMWB/X, SMDWB/X SMWB SMDWB Featuring Digital Hybrid Wireless® Technology US Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com SMWB Series Table of Contents Introduction Introduction ............................................................................ 2 The design of the SMWB transmitter delivers the ad- About Digital Hybrid Wireless® ...............................................................................2 vanced technology and features of Digital Hybrid Wire- Servo Bias Input and Wiring ................................................ 3 less® in a Lectrosonics belt-pack transmitter at a modest DSP-controlled Input Limiter ................................................ 3 cost. Digital Hybrid Wireless® combines a 24-bit digital Recorder function ................................................................. 3 audio chain with an analog FM radio link to eliminate a Compatibility withmicroSDHC memory cards .................... 3 Features .................................................................................. 4 compandor and its artifacts, yet preserve the extended Battery Status LED Indicator ............................................... 4 operating range and noise rejection of the finest analog Menu Shortcuts .................................................................... 4 wireless systems. IR (infrared) Sync ................................................................. 4 The housing is a rugged, machined aluminum pack- Battery Installation ............................................................... 5 age with a standard Lectrosonics 5-pin input jack for Formatting SD Card ............................................................... 5 IMPORTANT .......................................................................... 5 use with electret lavaliere mics, dynamic mics, musical iXML HEADER SUPPORT .................................................. 5 instrument pickups and line level signals. The LEDs Turning Power ON ................................................................. 6 on the keypad allow quick and accurate level settings Short Button Press ............................................................... 6 without having to view the receiver. The unit is powered Long Button Press ............................................................... 6 by AA batteries, one battery in the SMWB and two in Menu Shortcuts .................................................................... 6 the SMDWB. The antenna port uses a standard 50 ohm Transmitter Operating Instructions ..................................... 7 SMA connector. Recorder Operating Instructions ......................................... 7 SMWB Main Menu .................................................................. 8 Switching power supplies provide constant voltages to SMWB Power Button Menu ................................................... 9 the transmitter circuits from the beginning to the end of Setup Screen Details ............................................................ 10 battery life, with output power remaining constant over Locking/Unlocking Changes to Settings............................... 10 the life of the battery. The input amplifier uses an ultra Main Window Indicators ....................................................... 10 low noise op amp. Input gain is adjustable over a 44 dB Connecting the Signal Source ............................................. 10 range, with a DSP-controlled dual envelope input limiter Turning Control Panel LEDs ON/OFF .................................. 10 providing a clean 30 dB range to prevent overload from Helpful Features on Receivers ............................................. 10 signal peaks. Files ..................................................................................... 10 Record or Stop .................................................................... 11 ® Adjusting the Input Gain ....................................................... 11 About Digital Hybrid Wireless Selecting Frequency ............................................................ 11 All wireless links suffer from channel noise to some Selecting Frequency Using Two Buttons .............................. 12 degree, and all wireless microphone systems seek to About Overlapping Frequency Bands .................................. 12 minimize the impact of that noise on the desired signal. Selecting the Low Frequency Roll-off .................................. 12 Conventional analog systems use compandors for Selecting the Compatibility (Compat) Mode ......................... 12 enhanced dynamic range, at the cost of subtle artifacts Selecting Step Size .............................................................. 13 Selecting Audio Polarity (Phase) .......................................... 13 (known as “pumping” and “breathing”). Wholly digital Setting Transmitter Output Power ........................................ 13 systems defeat the noise by sending the audio informa- Setting Scene and Take Number ......................................... 13 tion in digital form, at the cost of some combination of Choosing Takes for Replay .................................................. 13 power, bandwidth, operating range and resistance to Recorded File Naming ........................................................ 13 interference. SD Info ................................................................................. 13 Restoring Default Settings ................................................... 13 The Lectrosonics Digital Hybrid Wireless system over- 5-Pin Input Jack Wiring ......................................................... 14 comes channel noise in a dramatically new way, digitally Microphone Cable Termination encoding the audio in the transmitter and decoding it for Non-Lectrosonics Microphones .............................. 15 in the receiver, yet still sending the encoded informa- Input Jack Wiring for Different Sources .............................. 16 tion via an analog FM wireless link. This proprietary Microphone RF Bypassing ................................................... 17 algorithm is not a digital implementation of an analog Line Level Signals ................................................................ 17 compandor but a technique which can be accomplished Firmware Update ................................................................... 18 only in the digital domain. Recovery Process ................................................................. 19 Declaration of Conformity..................................................... 19 Since the RF link between transmitter and receiver is Silver Paste on SM Series Transmitter Thumbscrews ........ 20 FM, channel noise will increase gradually with in- Straight Whip Antennas ........................................................ 21 creased operating range and weak signal conditions, Belt Clips and Pouches ......................................................... 22 however, the Digital Hybrid Wireles system handles this SMWB Single Battery Model ............................................... 22 situation elegantly with rarely audible audio artifacts as SMDWB Dual Battery Model ................................................ 22 the receiver approaches its squelch threshold. Miscellaneous Accessories .................................................. 23 LectroRM ................................................................................ 24 In contrast, a purely digital system tends to drop the Specifications ........................................................................ 25 audio suddenly during brief dropouts and weak signal Troubleshooting ..................................................................... 26 conditions. The Digital Hybrid Wireless system simply Service and Repair ................................................................ 28 encodes the signal to use a noisy channel as efficiently Returning Units for Repair ................................................... 28 2 LECTROSONICS, INC. Digital Hybrid Wireless Belt-Pack Transmitters and robustly as possible, yielding audio performance that rivals that of purely digital systems, without the Compatibility with power, noise and bandwidth problems inherent in digital transmission. Because it uses an analog FM link, Digital Hybrid Wireless enjoys all the benefits of conventional microSDHC memory cards FM wireless systems, such as excellent range, efficient Please note that the SMWB and SMDWB are designed use of RF spectrum, and long battery life. for use with microSDHC memory cards. There are several types of SD card standards (as of this writing) Servo Bias Input and Wiring based on capacity (storage in GB). The input preamp is a unique design that delivers SDSC: standard capacity, up to and including 2 GB – audible improvements over conventional transmitter DO NOT USE! inputs. Two different microphone wiring schemes are SDHC: high capacity, more than 2 GB and up to and available to simplify and standardize the configuration. including 32 GB – USE THIS TYPE. Simplified 2-wire and 3-wire configurations provide sev- SDXC: extended capacity, more than 32 GB and up to eral arrangements designed for use only with servo bias and including 2 TB – DO NOT USE! inputs to take full advantage of the preamp circuitry. SDUC: extended capacity, more
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