Lectrosonics introduces a new digital stereo transmitter :
The new Lectrosonics DCHT !
The new DCHT/E01 transmitter is designed for use in film and television production to provide a wireless stereo link from a bag or cart system to cameras and recorders but it is also integrated in the Duet (IFB/IEM) system. The transmitter will accept mic or line level analog signals or AES digital signals from a mixer and transmit the signals to the receiver in a pure digital format. The digital architecture is a third generation design with specially developed, high efficiency digital circuitry for extended operating time on two AA batteries.
The transmitter can tune in coarse or fine steps across the UHF television band from 470.100 to 607.950 MHz, with a selectable output power of 10, 25 or 50 mW. The pure digital architecture enables AES 256-CTR encryption for high level security applications.
Studio quality, stereo audio performance is assured by high quality components in the preamp, wide range input gain adjustment and DSP-controlled limiting. Input connections and settings are included for any lavaliere microphone, dynamic microphones and line level inputs. Input gain is adjustable over a 51 dB range in 1 dB steps to allow an exact match to the input signal level, maximizing the dynamic range and signal to noise ratio.
The top panel contains the antenna jack, two audio input level LEDs (one per audio channel), the programmable function switch and the audio input jack. The red/green LEDs provide audio level indications from -20 dB to the onset of limiting for each channel for accurate input gain adjustment. The programmable switch can be configured as a mute switch, a power on/off switch, or be bypassed. The 6-pin input jack accepts two mic or line level analog signals or AES digital signals from external sources via a variety of adapter cables. Analog inputs can be linked for the same gain when used with a stereo source, or operate independently with individual settings.
The housing is constructed of solid machined aluminum for lasting ruggedness. The exterior is finished with an ultra hard, dark electroless nickel finish.
- Tunes across entire UHF frequency range
- 256-bit encryption - AES 256-CTR
- Records to a microSDHC memory card
- 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
Specifications |
|
|---|---|
| Operating Frequencies: | 470.100 - 614.375 MHz |
| Frequency Selection Steps: | 25 kHz |
| RF Power Output: | Selectable; 10, 25 or 50mW |
| Frequency Stability: | ± 0.002% |
| Spurious Radiation: | Compliant ETSI EN 300 422-1 v2.1.2 |
| Digital Modulation: | 8PSK |
| Equivalent Input Noise: | -128dBV |
| Input Level | Mic: Nominal 2 mV to 300 mV, before limiting Greater than 1V maximum, with limiting
Line: +24dBu before limiting |
| Input Impedance: | Mic: 300 or 4.5 kΩ; selectable Line: greater than 100 kΩ |
| Input Limiter: | Dual envelope type; 30dB range |
| Gain Control Range: | 51 dB in 1dB steps; digital control |
| Modulation Indicators: | Bicolor LED indicates modulation of -20 and 0dB referenced to full modulation LCD bar graph |
| Compatibility Modes: | DCH (Digital Camera Hop) Duet (IEM) |
| Frequency Response: | 20 Hz -14.5 kHz ±1dB |
| Controls: | Top panel toggle switch; programmable as power, mute or none (off) function Side 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 Duracell Quantum recommended |
| Battery Life: | 5 hours; Duracell Quantum alkaline |
| Weight: | 163 grams; w/ belt clip and lithium AA batteries
181 grams; w/ belt clip and Duracell Quantum AA batteries |
| Overall dimensions: | 88 x 62 x 19 mm |
| Emission Designator: | 200KG1E |
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