The VM Transmitter from LectroSonics is Designed for wet or dusty environments, the WM transmitter features O-ring sealed battery compartments and
\ninput jack, a compression sealed antenna port, and gasket sealed control panel and back cover. Dual AA batteries provide twice the operating time of earlier watertight transmitter designs. Larger membrane switches and
\ncontrol panel and a highly visible, backlit LCD enhance the user interface.<\/p>\n
To meet the demand for both extended operating range and extended battery life, the transmitter offers selectable output power of 50, 100 and 250 mW.
\nWith higher power output, the operating range is improved at the expense of battery life. When range is not an issue, the
\npower can be reduced to extend the battery life.
\nThe transmitter can be controlled by the LectroRM app for hands free setup and adjustment using audible tones delivered into the microphone from your phone.
\nThe transmitter can be put to sleep to conserve battery power during setup when it is buried deep inside costuming, then awakened for normal operation when the production begins. Other adjustments include frequency,
\naudio level and control panel lockout.
\nThe DSP-based design works with all Digital Hybrid receivers, and is backward compatible for use with Lectrosonics Mode 3 and IFB.
\nThe input section features servo bias circuitry with voltages being selectable from the LCD to match the requirements of a wide variety of lavaliere microphones.
\nThe bias can also be turned off for use with dynamic microphones. A line level setting is provided for use with signal levels up to 5 volts.
\nThe low frequency roll-off can be adjusted from 35 to 150 Hz. A DSP-controlled analog audio limiter is employed ahead
\nof the first mic preamp to protect the entire audio chain from overload.
\nThe 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.<\/p>\n
Watertight Connections<\/strong> Output Isolator<\/strong> The VM Transmitter from LectroSonics is Designed for wet or dusty environments. The transmitter is not for underwater use.<\/p>\n
\nThe input connector is mounted in a recessed opening which provides a captive seat for the O-ring on the microphone connector.
\nThis captures the O-ring allowing it to be tightened firmly.
\nThe antenna is mounted with a compressible strain relief under a flange that presses the strain relief into a
\ntapered opening for a watertight connection.<\/p>\n
\nThe transmitter RF output circuit includes a specialized RF device called an isolator using a magnetically polarized ferrite to allow RF signals to pass through to the antenna, but block them from coming backward into the transmitter output section.
\nThe isolator greatly reduces RF intermodulation produced in the transmitter output stages when multiple units are used in close proximity (a few feet apart).
\nThe isolator also helps protect the output stage from electrostatic shock delivered to the antenna.
\nIsolators are common in broadcast and commercial applications, but because of their high cost it is unusual to find them in wireless microphone transmitters.<\/p>\n","protected":false},"excerpt":{"rendered":"\n
\nof different receivers<\/li>\n