Lectrosonics DBSM-A1B1 Digital Transmitter w/ Recorder and Time Code, Single AA, 470-608MHz

•100% digital audio and transmission with extremely low audio noise floor
• 20 to 20 kHz frequency response in D2 mode, 112 dB dynamic range, with linear phase response
• Increased battery life vs. older digital units
• High pass filtering at 20, 35, 50, 70, 100, 120, and 150 Hz (much more flexible that most!)
• 3 selectable RF power settings: 10 mW, 25 mW and 50 mW
• Selectable HDM high density transmission mode for extremely tight carrier spacing (200 kHz)
• On-board Recording via microSDHC card in .WAV (BWF) file format, 24 bits, 48 kHz
• Timecode jam sync support via TA5 input jack, <1PPM accuracy
• AES-256 CTR mode Encryption with 4 different key policies
• Servo-bias microphone input, all “servo only” and “universal” wired lav and headset mics with TA5 connectors are compatible.

The DBSM-A1B1 and DBSMD-A1B1 digital transcorders were developed specifically for the needs of the film industry and offer time code jam sync capability. They offer hands free setup and adjustment using audible tones and can be put to sleep to conserve battery power during setup while buried inside costuming, then awakened for normal operation when the production begins. Other features include input gain adjustment in 1 dB increments over a 44 dB range and adjustable low frequency audio roll-off for 3 dB down points at 20, 35, 50, 70, 100, 120 or 150 Hz to control subsonic and very low frequency audio content. The transmitters also offer selectable output power of 10, 25 and 50 mW. A special high-density (HDM) transmit mode at 2 mW allows for ultra-tight channel spacing without concern for frequency coordination. The input section features the unique Lectrosonics servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed ahead of the first mic preamp to protect the entire audio chain from overload. The limiter has a range of more than 30 dB for excellent overload protection, and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion of brief transients and longer duration peaks. A water resistant control panel with LCD, membrane switches and multi-color LEDs make input gain adjustments, frequency and compatibility mode selection quick and accurate. The battery compartment accepts industry-accepted AA batteries (lithium recommended).

The housing is machined from solid aluminum blocks to provide an extremely lightweight and rugged package. A special non-corrosive finish resists salt water exposure and perspiration in extreme environments. Frequency Tuning Range RF-intense multichannel and mobile venues must have a broad selection of frequencies available to alleviate interference problems, especially with the emergence of DTV telecasts. Frequencies are selectable in 25 kHz steps across the broad tuning range of each frequency band. Alternate Recording Function Instead of transmitting, the transmitters may also be used as a stand alone recorder. The industry standard .wav (BWF) file format is compatible with essentially any audio or video editing software. NOTE: The transmitting and recording functions cannot be used simultaneously. Users must choose to transmit or record.