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DCHT
Digital Transmitter
DCHT, DCHT/E01
Fill in for your records:
Serial Number:
Purchase Date:
INSTRUCTION MANUAL
Quick Start Steps
1) Install good batteries and turn power on (see
pages 5 and 7).
2) Set compatibility mode to match the receiver (see
page 11).
3) Connect signal source, select input type and adjust
input gain for optimum modulation level (see page
10).
4) Set or sync frequency to match receiver (see page
11, 12). Also see receiver manual for scanning pro-
cedure.
5) Set encryption key type and sync with receiver (see
page 13).
6) Set programmable switch to desired function (see
page 13).
7) Verify RF and audio signals are present at the re-
ceiver (see receiver manual).
WARNING: Moisture, including talent's sweat,
will damage the transmitter. Wrap the DCHT
in a plastic baggie, our silicone cover (order
part # DCHTCVR) or other protection to avoid
damage.
Rio Rancho, NM, USA
www.lectrosonics.com
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Summary of Contents for Lectrosonics duet DCHT
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Page 1: Quick Start Steps
WARNING: Moisture, including talent’s sweat, will damage the transmitter. Wrap the DCHT in a plastic baggie, our silicone cover (order part # DCHTCVR) or other protection to avoid damage. Fill in for your records: Serial Number: Rio Rancho, NM, USA Purchase Date: www.lectrosonics.com... -
Page 2: Table Of Contents
Specifications ............... 15 General Technical Description ........... 3 Input Connections ............... 16 DSP-controlled Input Limiter ..........3 Microphone Cable Termination for Non-Lectrosonics Microphones ......17 Encryption ................3 LectroRM ................18 Features and Functions ............4 Supplied Accessories............20 Optional Battery Eliminator ..........4 Whip Antennas .............. -
Page 3: Introduction
Introduction Description The DCHT, DCHT/E01 transmitter is designed to work with a companion receiver (such as the Lectrosonics DCHR or M2R, part of digital camera hop systems) as DSP-controlled Input Limiter an audio relay between an audio production bag or cart and a camera or other audio device. -
Page 4: Features And Functions
LTBATELIM power supply adapter. The battery door is replaced by the adapter with a simple procedure. 588.800 - 607.950 AMM22 The adapter provides a locking coaxial connector and a variety of power cords and connectors are available. LECTROSONICS, INC. -
Page 5: Battery Status Led Indicator
Digital Transmitter Battery Status LED Indicator Battery Installation The Power/Function LED on the top panel will mirror the The transmitter is powered by two AA batteries. Lithium keypad LED unless the programmable switch is set to batteries are recommended for longest life. Mute, and the switch is turned on. -
Page 6: Dcht, Dcht/E01 Block Diagram
Switching Power Supply Power Microprocessor Tricolor Status Ready IR Port Firmware Update UART Jack Keypad IQ Modulator Bu er PLL Ref Oscillator Voltage Controlled Phase Locked Loop Pass Filters VCTCXO Oscillator Filter Final 36.864 MHz Ampli er Control LECTROSONICS, INC. -
Page 7: Powering On And Off
Digital Transmitter Powering On and Off Main Menu and Setup Screen Details Powering On in Operating Mode Press and hold the Power Button for a few seconds Entering the Main Menu until the progress bar on the LCD finishes. The LCD and keypad interface makes it easy to browse When you release the button, the unit will be operational the menus and make the selections for the setup you with the RF output turned on and the Main Window dis-... -
Page 8: Lcdmenu Map
Press UP arrow button to begin sync Sync GetFreq. GetFrq BACK Press UP arrow button to begin sync Sync GetAll GetAll BACK Press UP arrow button to begin sync Sync KeyType Select option with arrow buttons: KeyType Shared, Standard, Volatile, BACK Universal Shared LECTROSONICS, INC. - Page 9 Digital Transmitter Select option NOTE: Make, Wipe WipeKey? Make with arrow and Send Key WipeKey BACK buttons Menu options are BACK only available in NOTE: The key Shared, Standard menu selections and Volatile Key only show SendKey Types. They will not SendKey when DCHX be displayed in the...
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Page 10: Input Menu
When the input type is set to Analog, InpCfg1 and In- Gain pCfg2 menus are used to configure the audio input for the respective channels. Use the arrow but- tons to select the input type. Input... InpCfg1 InpCfg2 Line In Oth Lav InType InpCfg1 InpCfg2 LECTROSONICS, INC. -
Page 11: Xmit Menu
Sanken COS-11; 4V, Low-Z, (–) Rf On? 50 mW MKE 2* Sennheiser MKE 2; 4V, Low-Z, (+) M152* Lectrosonics M152; 4V, Low-Z, (+) Turning Rf On/Off Oth Lav* Other lavaliere; 4V, Low-Z, (+) Turn Rf off to preserve battery power while setting other Custom Manually configurable microphone level transmitter functions. -
Page 12: Selecting M2R Receiver Functions
All encryption-capable Lectroson- WipeKey ics transmitters and receivers contain the Universal Key. The key does not have to be generated by the SendKey Send DCHT. Simply set a Lectrosonics encryption-ca- pable receiver and the DCHT to Universal, and the LECTROSONICS, INC. -
Page 13: Setup Menu
Digital Transmitter Flex List Setup Menu Name Selecting AutoOn Feature Name the DCHT, DCHT/E01 to allow easy identifica- If external power is switched off or batteries fail while the tion on the M2R FlexList. The following are available for unit is transmitting, the unit will automatically turn back custom names: on after power is restored or fresh batteries are installed. -
Page 14: Enable/Disable Remote Control Function
• Sync functions are still available (except Get Freq. and Get All). Selecting Backlit Time Adjusts the duration of the LCD back light to 30 seconds, 5 minutes, or to remain on. Setup... Backlit BatType 30 sec Locked? 5 sec Backlit LECTROSONICS, INC. -
Page 15: Wireless Designer Software
Modulation Indicators: • Bicolor LED indicates modulation of WARNING: Do not connect more than one -20 and 0 dB referenced to full modulation Lectrosonics device to your computer while • LCD bar graph updating firmware. Wireless Designer may Frequency Response: 15 Hz –... -
Page 16: Input Connections
This will reduce the RF energy radiated into the micro- jack is a Switchcraft TA6FLX 6-pin female (nickel plated). phone cable shield wire from getting back into the trans- Lectrosonics P/N 21932. mitter via the audio input. Digital RF carriers contain both FM and AM components... -
Page 17: Microphone Cable Termination For Non-Lectrosonics Microphones
Digital Transmitter Microphone Cable Termination for Non-Lectrosonics Microphones TA6F Connector Assembly Mic Cable Stripping Instructions 0.15" VIEWED FROM OUTSIDE 0.3" Crimping to Shield and Insulation Strip and position the cable so that the clamp can be crimped to contact both the mic cable shield and the insulation. -
Page 18: Lectrorm
• Remote control must be enabled. DCHTRemote’s remote control mechanism is the use of Please be aware this app is not a Lectrosonics an audio sequence of tones (dweedles) that are inter- product. It is privately owned and supported by preted by the transmitter as a configuration change. -
Page 19: Supplied Accessories
Use of other accessories may not ensure compliance with FCC RF exposure guidelines. AMJ19 Contact Lectrosonics if you have any questions or need more information about RF exposure using this product.. Swiveling Whip Antenna with Standard SMA Connector, Block 19. -
Page 20: Optional Accessories
LTBATELIM: Replaces the batteries for powering the microphones and other devices configured with TA5F DCHT, DCHT/E01 from external DC, 5 to 25 volts. connectors for Lectrosonics wireless transmitters. 6 inch length. MCTA6XLRF2: Line level signals from two XLR-M out- puts. 18 inch length. -
Page 21: Troubleshooting
Digital Transmitter Symptom: Possible Cause: Transmitter Battery LED off 1. Batteries are inserted incorrectly. when Power Switch “ON” 2. Batteries are low or dead. No Transmitter Modulation LEDs 1. Gain control turned all the way down. when Signal Should be Present 2. -
Page 22: Service And Repair
LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping. - Page 23 Digital Transmitter Rio Rancho, NM...
- Page 24 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. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.
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