Lectrosonics DCHT, PORTABLE STEREO DIGITAL TRANSMITTER, 2XAA, A1B1 FREQ RANGE

Lectrosonics DCHT, PORTABLE STEREO DIGITAL TRANSMITTER, 2XAA, A1B1 FREQ RANGE

The Lectrosonics DCHT is a professional portable digital stereo transmitter designed for film and television production. It can be used as a wireless audio link between a production sound bag or cart and cameras, or as a portable IFB transmitter when paired with Duet M2R digital wireless receiver packs. The DCHT accepts two channels of microphone or line-level analog audio, as well as a digital AES input from a mixer. Audio is transmitted to compatible receivers entirely in digital form, providing a robust and high-quality wireless link. Its third-generation digital architecture uses specially developed, high-efficiency circuitry to provide extended operating time from just two AA batteries. With a wide UHF tuning range and more than 6,000 selectable frequencies, the DCHT provides flexible frequency coordination for professional production environments. Users can select 10, 25, or 50 mW RF output power to balance operating range with the requirements of a particular application. For productions where audio confidentiality is important, the transmitter also supports AES-256-CTR encryption.

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

Operating temp. range: Celsius: -20° - +40°; Farenheit: -5° - +104°
Frequency Selection Steps: 25 kHz
RF Power Output: Selectable; 10, 25 or 50 mW. 20mw max for
Domestic B1C1
E09 version: 10/25mW 470.100-614.375
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