Lectrosonics Dhu Digital Wideband Handheld Transmitter
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Lectrosonics Dhu Digital Wideband Handheld Transmitter
The DHu Digital Encrypted handheld transmitter represents a versatile solution for a variety of wireless microphone applications including live performance, broadcast, AV rental and houses of worship. The design incorporates advanced features to provide high-quality speech and vocal reinforcement.
Interchangeable Capsules
Lectrosonics offers the HHC cardioid condenser capsule. Thread-on capsules from other manufacturers using a 1.25” opening and 28 thread pitch can also be used, including those from manufacturers such as EV, Shure®, Heil SoundTM, Earthworks®, Telefunken® and others.*
The transmitter benefits from a 4th generation design with specially developed, high-efficiency digital circuitry for extended operating time on two AA batteries. The transmitter can tune across the UHF television band from 470 to 608 MHz (470 to 614 Mhz for export versions) with a selectable output power of 25 or 50 mW. The pure digital architecture enables AES 256-CTR encryption for applications that require high-level security.
Studio quality audio performance is assured by high-quality components, wide range audio gain adjustment in fine increments, and a DSP-controlled, dual envelope limiter. Low-frequency audio roll-off is adjustable to tailor the sound as needed for a variety of applications.
Setup is easy using membrane switches on a concealed control panel. An IR (infrared) port on the control panel allows settings to be transferred between receiver and transmitter.
A programmable switch on the outside of the housing can be configured for push-to-talk, cough, mute, talkback, power on/off, or be bypassed.
Key Features
- 4th generation digital design
- 256-bit encryption - AES 256-CTR
- Interchangeable thread-on capsules
- Battery powered by two AA batteries
- Selectable RF output power at 25 or 50 mW
- 2-way IR (Infrared) port for fast setup
- 24 bit/48 kHz digital conversion
- Rugged machined aluminum housing
Technical Specifications
Frequency selection steps
Selectable; 100 kHz or 25 kHz
RF Power output
Selectable; 25 or 50 mW
Frequency stability
± 0.002%
Digital Modulation
8PSK
Spurious radiation
DHu Compliant ETSI EN 300 422-1 v1.4.2
DHu/E01 and E01-B1C1 Compliant ETSI EN 300 422-1 v.2.1.2
Operating temperature range
-20° C to +50° C; -5° C to +122° F
Input compressor
Dual envelope compressor, >30 dB range
Gain control range
45 dB; semi-log menu-driven control; 1 dB steps
Modulation indicators
Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation, LCD bar-graph indicator
Frequency response
40 Hz to 20 kHz (+/- 1dB)
Low frequency roll-off
-3 dB @35, 50 and 70 Hz; selectable; 36 dB/octave
Controls
External-Programmable mute/talkback button
Battery compartment-Power, mute disable, menu/select, up/down, and back arrow buttons for menu selection and settings
Battery
2x AA with polarity protection and battery ejector
Battery life
At 50 Mw 5 hours (Duracell Quantum); battery status is transmitted to Lectrosonics receivers
Capsule Interface
1.25” opening and 28 thread pitch
Power available 5V, 25 mA max
Input impedance 1000 Ohms
Weight
12.1 oz. with batteries and HHC capsule
Dimensions
9.5” long x 1.97” diameter at largest point
Emission Designator
170KG7E
Included Accessories
1 - CCHH Zippered pouch
1 - 13585 mic clip
1 - P1298 anti-roll sleeve
2 - AA Batteries
