INSTRUCTION MANUAL DHu Digital Handheld Transmitter DHu, DHu/E01 Rio Rancho, NM, USA www.lectrosonics.
DHu , DHu/E01 Table of Contents General Technical Description........................................... 3 Microphone Capsules:........................................................ 4 Mechanical Assembly......................................................... 4 Battery Installation.............................................................. 5 Control Panel....................................................................... 5 Setup and Adjustments.....................................................
Digital Hand Held Transmitter General Technical Description Introduction The transmitter benefits from a fourth 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 470.100 to 607.950 MHz (470.100 to 614.375 for export), with a selectable output power of 25 or 50 mW.
DHu , DHu/E01 A mic capsule is threaded onto the body of the transmitter in the direction shown. Do not overtighten it. Mechanical Assembly The lower housing opens by rotating it in the direction shown. After the threads are disengaged, pull the housing downward until it engages the detent that holds it open. The threaded interface is a 1.25” diameter opening with 28 threads per inch and three contact rings Microphone Capsules: Lectrosonics offers two types of capsules.
Digital Hand Held Transmitter Battery Installation To insert batteries, close the eject lever and insert the upper contacts first (closest to the mic capsule). Polarity is marked on the label in the bottom of the battery compartment. Control Panel Six membrane switches on the control panel are used to set up the transmitter by navigating the menus on the LCD and selecting the desired values.
DHu , DHu/E01 Setup and Adjustments Standby Mode Powering On Press and hold the Power Button until a status bar on the LCD is completed. The status bar will appear on the LCD, followed by a display of the model, firmware version, frequency band and compatibility mode. DHu V1.01 Hold for Rf On A brief push of the keypad Power Button turns the unit on and places it into a “standby” mode (not transmitting). Press the button and release before the status bar completes.
Digital Hand Held Transmitter Battery Condition An icon on the Main Window indicates the approximate remaining power of the batteries. This battery gauge is most accurate with the typical voltage drop across the life of alkaline batteries. Menu Map Gain SEL BACK Gain 22 -40 -20 0 DHu Freq. 545.400 -40 -20 Freq. SEL BACK 470.675 0 Rechargeable batteries give little or no warning when nearing depletion.
DHu , DHu/E01 Gain Rolloff This setting is very important since it can have a significant effect on the signal to noise ratio the system will deliver. The gain adjustment can even affect the operating range of the wireless system. Gain must be set according to the individual voice, the mic capsule in use and the handling technique of the user. LEDs in the control panel facilitate accurate gain adjustment. Gain Freq. ProgSw Rolloff Gain -40 -20 25 Freq.
Digital Hand Held Transmitter Default WipeKey The default setting simple returns the transmitter back to the factory settings and any of the menu items can be readjusted from that default point. BatType TxPower Default KeyType Default settings No Yes This menu item is only available if Key Type is set to Standard or Shared. Select Yes to wipe the current key and enable the DHu, DHu/E01 to receive a new key.
DHu , DHu/E01 Input Gain Adjustment While the digital system has an excellent signal to noise ratio over a wide range of gain adjustment, it is still good practice to set the gain close to full modulation. The two bicolor Modulation LEDs (located at the bottom of the control panel) are used to accurately adjust the gain. They are upside/down from the keypad for viewing with the capsule close to your mouth.
Digital Hand Held Transmitter ProgSw PTT Push To Talk is a momentary talk switch. Audio is transmitted while the button on the housing is held (opposite of cough) Main Window Displays for Function The function of the Programmable Switch is displayed in the LCD Main Window. In the None and Power functions, no indication is displayed. In the Mute and Cough functions, the word MUTE is displayed.
DHu , DHu/E01 Parts and Accessories #CCHH - Zippered Pouch Padded zipper pouch for handheld transmitter #26872 Mic Capsule Wrench Custom wrench for removing windscreen from mic capsule HHXTND Extender to for use with microphone flags commonly used in ENG for network or station ID to keep the flag from covering the side switch and LCD HH2SEN Adapter Adapts Sennheiser G2, G3 and 2000 Series microphone capsule heads to the HH transmitter.
Digital Hand Held Transmitter Mic Capsule Adjustments Resonance tuned suspension HHVMC capsule (EXPERT LEVEL ADJUSTMENT) These adjustments significantly alter the gain and tonal quality of the microphone, and are to be used only in special circumstances. Caution: Always make the final decision about sound quality with the windscreen in place. Attenuator control EQ controls (HHVMC only) Remove the windscreen using the supplied wrench. Align flats on the wrench with flats on the capsule.
DHu , DHu/E01 Specifications Frequency range: DHu DHu/E01 470.100 - 607.950 MHz 470.100 - 614.
Digital Hand Held Transmitter Troubleshooting SYMPTOM POSSIBLE CAUSE TRANSMITTER WILL NOT POWER ON 1) Batteries are inserted backwards. 2) Batteries are dead, or too low to be used. MODULATION LEDs DO NOT LIGHT 1) Audio Gain set too low. 2) Mic capsule is damaged or malfunctioning. Try a different capsule or contact the factory for repair.
DHu , DHu/E01 FCC Compliance: ISEDC Notices: This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other antenna or transmitter. Per RSS-210 FCC Notice to the End User: The normal condition of using this device is to keep the hand at least 20mm away from the base of the microphone.
Digital Hand Held Transmitter Service and Repair If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnecting cables and then go through the Troubleshooting section in this manual.
DHu , DHu/E01 Declaration of Conformity 18 LECTROSONICS, INC.
Digital Hand Held Transmitter Rio Rancho, NM 19
, DHu/E01 LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor.
