Lectrosonics DCHT Portable Dual Channel Digital Transmitter

Lectrosonics DCHT Portable Dual Channel Digital Transmitter The DCHT portable digital stereo transmitter is designed for use in film and TV production as both a wireless audio link from a bag or cart system to cameras and as a portable IFB transmitter paired with the Duet digital wireless M2R receiver packs. The DCHT accepts two channels of mic or line level analog signals or an AES digital signal from a mixer and transmits to the receiver or receivers in a purely digital format. The digital architecture of the new DCHT is a third-generation design with specially developed, high-efficiency circuitry for extended operating time on two AA batteries. The DCHT can tune across the available UHF TV band from 470.00 to 607.950 MHz (470-614 MHz for export versions) in 100 kHz or 25 kHz steps, offering more than 6000 frequencies. The RF output can be set to 10, 25 or 50 mW, thus providing flexibility in terms of operating range for the intended application. The digital architecture allows for AES256-CTR encryption for applications where content security is a concern. Key Features Tunes across entire UHF frequency range 256-bit encryption - AES 256-CTR Selectable RF power at 10, 25 and 50 mW AES and analog mic and line level inputs USB port for firmware updates Wide range input gain adjustment Compatible with Duet M2R receiver DSP-controlled input limiter Two AA battery power Solid machined aluminum housing Optional powering from external DC Technical Specifications Operating temp. range Celsius -20° - 50°; Farenheit -5° - 122° Frequency Selection Steps 25 kHz RF Power Output Selectable; 10, 25 or 50 mW Frequency Stability ± 0.002% Spurious Radiation DCHT Compliant ETSI EN 300 422-1 v1.4.2 DCHT/E01 Compliant ETSI EN 300 422-1 v2.1.2 Digital Modulation 8PSK Encryption AES 256-CTR (per FIPS 197 and FIPS 140-2) Equivalent Input Noise -128 dBV Input Types Analog; mic and line level AES digital Input Level (analog) Mic Nominal 2 mV to 300 mV, before limiting. Greater than 1V maximum, with limiting Line +24 dBu before limiting Input Impedance Mic 300 or 4.5 k ohm; selectable Line greater than 100 k ohm Input Limiter Dual envelope type; 30 dB range Gain Control Range 51 dB in 1 dB steps; digital control Modulation Indicators Bicolor LED indicates modulation of -20 and 0 dB referenced to full modulation LCD bar graph Frequency Response 15 Hz - 11.3 kHz, +0, -3 dB Controls Top panel toggle switch; programmable as power, mute or none (off) function Front panel membrane switches with LCD interface for power on/off and all setup and configuration controls Audio Input Jack Switchcraft 6-pin locking (TA6F) Antenna Galvanized steel, flexible wire, SMA connector Battery Two AA Lithium recommended Battery Life 5 hours Weight 5.75 ozs. (163 grams); w/ belt clip and lithium AA batteries 6.40 ozs. (181 grams); w/ belt clip and Duracell Quantum AA batteries Overall dimensions 3.45 x 2.44 x .742 in. (88 x 62 x 19 mm) Emission Designator 200KG7E Included Accessories 26895 - Wire Belt Clip 40096 - 2x AA Batteries AMJ-19 SMA-mount antennas AMJ-22 SMA-mount antennas