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DCHT
Digital Transmitter
DCHT, DCHT/E01
This manual is for all 1.1X versions
of DCHT Firmware.
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
receiver (see receiver manual).
Rio Rancho, NM, USA
www.lectrosonics.com
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Summary of Contents for Lectronics DCHT
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Page 1: Quick Start Steps
DCHT Digital Transmitter DCHT, DCHT/E01 This manual is for all 1.1X versions of DCHT Firmware. 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). -
Page 2: Table Of Contents
Connecting the Signal Source ..........5 SendKey ................13 Battery Installation ............... 5 Setup Menu ................13 DCHT, DCHT/E01 Block Diagram ........6 Selecting AutoOn Feature ........... 13 Powering On and Off ............7 Selecting Programmable Switch Functions......13 Powering On in Operating Mode ......... 7 Enable/Disable Remote Control Function ...... -
Page 3: Introduction
High entropy encryption keys are dynamic range and signal to noise ratio. first created by the DCHT Transmitter. The key is then A separate switch is provided on the top panel that can synced with an encryption-capable digital receiver, via be configured as mute, power or bypass. -
Page 4: Features And Functions
DCHT, DCHT/E01 Features and Functions Status Ready LED Battery status LED Menu navigation Enter menu/Select item USB Port Return to previous screen Power Bi-directional IR port Programmable function switch Whip Antennas Because the transmitter tunes across such a broad frequency range, it is best to use the ap- propriate antenna for maximum operation. -
Page 5: Battery Status Led Indicator
Digital Transmitter Battery Installation Battery Status LED Indicator The Power/Function LED on the top panel will mirror The transmitter is powered by two AA batteries. Lithium the keypad LED unless the programmable switch is set batteries are recommended for longest life. to Mute, and the switch is turned on. -
Page 6: Dcht, Dcht/E01 Block Diagram
DCHT, DCHT/E01 DCHT, DCHT/E01 Block Diagram Input Jack 1 2 3 4 5 6 CHANNEL 1 CHANNEL 2 (analog/digital selectable) Servo Bias Bias Voltage Servo Bias Bias Voltage Supply 0, 2 or 3.6V Supply 0, 2 or 3.6V Converter Converter... -
Page 7: Powering On And Off
When the unit is powered up in either the oper- displayed. ating or the standby mode, press MENU/SEL on the keypad to enter a menu structure on the LCD. Use the DCHT Hold arrow buttons to select the menu item. Then MUTE press the MENU/SEL button to enter the setup screen. -
Page 8: Lcdmenu Map
DCHT, DCHT/E01 SEL button to Use arrow buttons Gain Gain select channel to select value Input... BACK (gain value NOTE: When StMode is set Menu Map Level meter at bottom of screen highlighted) to Linked, a single gain value field will be shown... - Page 9 Backlit Select option with arrow buttons 30 sec BACK 5 sec LEDs LED Off Select option with arrow buttons BACK Default Settings Default Select option with arrow buttons BACK About DCHT About About v1.10 BACK BACK /1.10 Rio Rancho, NM...
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Page 10: Input Menu
DCHT, DCHT/E01 Input Menu Selecting the Low Frequency Roll-off The low frequency audio roll-off is adjustable to op- Adjusting the Input Gain for Analog Inputs timize performance for ambient noise conditions or personal preference. For analog gain adjustment, two multi-color LEDs on... -
Page 11: Xmit Menu
Digital Transmitter Selecting Transmitter Output Power TYPE DESC, BIAS, IMPEDANCE, POLARITY The output power can be set to 10 mW, 25 mW Line In Line level signals up to +24 dBu or 50 mW. Dynamic Low-Z dynamic microphones Point Source Audio lav microphones Xmit... -
Page 12: Selecting M2R Receiver Functions
M2R FlexList to another receiver if there is a problem to be identi- - SendCh2: Send (sync) Channel 2 unique infor- fied. Not all copied settings are available on the DCHT, mation to the M2R FlexList DCHT/E01. -
Page 13: Key Menu
This menu item is only available if there is a Key Type Remote currently on the DCHT that can be deleted. Select Yes to wipe the current key and enable the DCHT to create a new key. NOTE: The programmable switch will continue to operate whether or not keypad changes are locked. -
Page 14: Enable/Disable Remote Control Function
DCHT, DCHT/E01 Enable/Disable Remote Control Function Selecting Backlit Time The “dweedle tone” remote control is turned on or off Adjusts the duration of the LCD back light to 30 sec- with the Remote menu, setting the transmitter to react onds, 5 minutes, or to remain on. -
Page 15: Wireless Designer Software
DCHT/E01 470.100 - 614.375 MHz Firmware updates are made with a file downloaded from the web site and the DCHT, DCHT/E01 connected NOTE: It’s the user’s responsibility to select the approved frequencies for the region where the transmitter is via USB. -
Page 16: Input Connections
NOTE: The resistor value can range from 2k to 4k ohms. PLUG NOTE: The Sanken CUB-01 is wired using pin 2 for the bias and will not work with the DCHT, DCHT/E01 and MCTA6TA5M2 adapter. Refer to the Accessories section of this manual for details on the available adapter cables. -
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
By New Endian LLC Activation DCHTRemote is a mobile application for iOS operat- ing systems to remotely control the Lectrosonics DCHT For the DCHT to respond to remote control audio tones, Transmitter. the transmitter must: The app remotely changes settings on the transmitter •... - Page 19 Cet appareil est conforme avec les normes d’Industrie Canada concernant les limites d’exposition aux radiations pour un environnement incontrôlé. This radio transmitter [IC: 8024A-DCHT, DCHT/E01] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated.
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Page 20: Accessories
MCTA6TA5M2: Microphone and line level signals from 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 outputs. -
Page 21: Troubleshooting
Digital Transmitter Troubleshooting 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
DCHT, DCHT/E01 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. - Page 23 Digital Transmitter Rio Rancho, NM...
- Page 24 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.
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