Lectrosonics DCHT Series Manual de usuario

Quick

Start

Guide

Fill in for your records:

Serial Number:

Purchase Date:

This guide is intended to assist with

initial setup and operation of your

Lectrosonics product.

For a detailed user manual, down-

load the most current

version at:

www.lectrosonics.com

7 November 2019

U.S. Patent 7,225,135

DCHT

Digital Transmitter

DCHT, DCHT/01

This guide is for all 1.1X

versions of DCHT Firmware.

LECTROSONICS, INC.2

Features and Functions

Battery

status LED

Status Ready LED

Return to

previous screen

Enter menu/

Select item

Menu navigation

Power

USB Port

Modulation

indicators*

Programmable

function switch

Audio

input

jack

Antenna

port

Bi-directional IR port

www.lectrosonics.com 3

Battery Status LED Indicator

The Power/Function LED on the top

panel will mirror the keypad LED un-

less the programmable switch is set

to Mute, and the switch is turned on.

Alkaline, lithium or rechargeable

batteries can be used to power the

transmitter. The type of batteries in

use are selectable in a menu on the

LCD.

When alkaline or lithium batteries

are being used, the LED labeled

BATT on the keypad glows green

when the batteries are good. The

color changes to red at a mid-point

of the runtime. When the LED be-

gins to blink red, there will be only a

few minutes of operation remaining.

The exact point at which the LEDs

turn red will vary with battery brand

and condition, temperature and

power consumption. The LEDs are

intended to simply catch your atten-

tion, not to be an exact indicator of

remaining time.

A weak battery will sometimes

cause the Power LED to glow green

immediately after the transmitter is

turned on, but it will soon discharge

to the point where it will turn red or

the unit will turn off completely.

Rechargeable batteries give little or

no warning when they are depleted.

If you wish to use these batteries in

the transmitter, the most accurate

way to determine runtime status is

by testing the time provided by a

particular battery brand and type,

then using the BatTime function to

determine remaining runtime.

Belt Clips

The wire belt clip may be removed

by pulling the ends out of the holes

in the sides of the case. Be sure to

have a ﬁrm grip to avoid scratching

the surface of the housing.

An optional spring-loaded, hinged

belt clip (model number BCSLEBN)

is also available. This clip is at-

tached by removing the plastic hole

cap on the back of the housing and

mounting the clip with the supplied

screw.

IR (infrared) Port

The IR port is available on the top of

the transmitter for quick setup using

a receiver with this function avail-

able. IR Sync will transfer the set-

tings for frequency from the receiver

to the transmitter.

Status LED

Blue LED indicates ready status.

Remote Function

In the Setup Menu, choose to turn

remote function on/off. The “dweedle

tone” remote control is turned on or

off with the Remote Menu, setting

the transmitter to react to tones

received (Enable) or to Ignore the

tones.

Setup...

AutoOn?

ProgSw

Remote

Enable

Ignore

NOTE: Remote control of

settings is enabled using

a third party smart phone

app named DCHTRemote,

published by New Endian,

LLC.

LECTROSONICS, INC.4

Battery Installation

The transmitter is powered by two

AA batteries. Lithium batteries are

recommended for longest life.

The battery status circuitry compen-

sates for the difference in voltage

drop between alkaline and lithium

batteries across their usable life, so

it’s important to select the correct

battery type in the menu.

Because rechargeable batteries

run down quite abruptly, using the

Power LED to verify battery status

will not be reliable. However, it is

possible to track battery status us-

ing the battery timer function avail-

able in the receiver.

Push outward on the battery com-

partment door and lift it to open.

Slide door outward,

then lift up to open

Insert the batteries according to the

markings on the back of the hous-

ing.

If the batteries are inserted incor-

rectly, the door will close but the unit

will not operate.

The battery contacts can be

cleaned with alcohol and a cotton

swab, or a clean pencil eraser. Be

sure not to leave any remnants of

the cotton swab or eraser crumbs

inside the compartment.

Spring contacts

Optional Battery Eliminator

The transmitter can be powered

by external DC using the optional

LTBATELIM power supply adapter.

Powering On/Off

Powering On in Operating

Mode

Press and hold the Power Button

brieﬂy until a bar on the LCD

ﬁnishes.

When you release the button, the

unit will be operational with the

RF output turned on and the Main

Window displayed.

Hold

for

Rf On 470.100

-40 -20 +0

DCHT

MUTE

www.lectrosonics.com 5

Powering On in Standby Mode

A brief press of the power button ,

and releasing it before the progress

bar ﬁnishes, will turn the unit on with

the RF output turned off. In this

Standby Mode the menus can be

browsed to make settings and

adjustments without the risk of

interfering with other wireless systems

nearby.

Hold

for

Rf On

Release

Power Button

before the bar

progresses to

enter Standby

Mode

RF indicator

blinks

470.100

-40 -20 +0

DCHT

NOTE: After settings and

adjustments are made, press

the power button again to

turn the unit off or navigate

to menu item Xmit, RFOn? to

choose to begin transmitting.

Powering Off

Powering

O...

To turn the unit off,

hold the Power

Button in brieﬂy

and wait for the

progress bar to

ﬁnish, or use the

programmable switch (if it is

conﬁgured for this function).

If the power button is released,

or the top panel switch is turned

back on again before the progress

bar ﬁnishes, the unit will remain

turned on and the LCD will return to

the same screen or menu that was

displayed previously.

NOTE: If the programmable

switch is in the OFF position,

power can still be turned on

with the power button.

Screen Details

Entering the Main Menu

The LCD and keypad interface

makes it easy to browse the menus

and make the selections for the

setup you need. When the unit is

powered up in either the operating

or the standby mode, press MENU/

SEL on the keypad to enter a menu

structure on the LCD. Use the

and arrow buttons to select the

menu item. Then press the MENU/

SEL button to enter the setup

screen.

The prompt in the upper right corner

may display one or both arrows,

depending upon what adjustment can

be made. If the changes are locked, a

small padlock symbol will appear.

-40 -20 0

Gain

Input...

Gain

Rolloff

StMode

Main Window Indicators

The Main Window displays the cur-

rent settings, status, audio level and

battery status.

470.100

-40 -20 +0

DCHT

MUTE

Frequency

(MHz)

Operating

mode

Battery

status

Audio level

Programmable

Switch

Function

If the programmable switch function

is set for MUTE, the Main Window

will indicate that the function is

enabled.

470.100

-40 -20 +0

DCHT

MUTE

Mute function

enabled but

not active

When the switch is turned on, the

mute icon appearance will change

and the word MUTE will blink at the

bottom of the display. The -10 LED

on the top panel will also glow solid

red.

470.100

DCHT

MUTE

<–MUTE–>

Main Window

will blink

the word

MUTE when

the audio is

muted

Mute

function

enabled and

active

LECTROSONICS, INC.6

LCD

Map

Input... SEL

BACK

SEL

BACK

Freq.

Xmit...

470.675

Press MENU/SEL to highlight MHz or kHz

Select value with arrow buttons

Rolloff

StMode

InType

InpCfg1

InpCfg2

SEL

BACK

Rolloff

Select value with arrow buttons

SEL

BACK Indep.

Linked

StMode

Select option with arrow buttons

SEL

BACK Analog

AES

InType

Select option with arrow buttons

SEL

BACK

InpCfg1

Line In

SEL

BACK

InpCfg2

Oth Lav

Txpower

Compat

Rf On?

SEL

BACK

SEL

BACK

Name...

Flex...

Name...

NameTx

NameCh1

NameCh2

Flex...

SendTx

SendCh1

SendCh2

NameTx

SEL

BACK Press MENU/SEL to confirm and move cursor to next

position; 8 characters available

Select character with arrow buttons

SEL

BACK

SendTx

Sync

Select option with arrow buttons:

SendTx, SendCh1, SendCh2,

SendM12

SEL

BACK

SEL

BACK

GetAll

SendAll

GetAll

Sync Press UP arrow button to begin sync

SendAll

Sync Press UP arrow button to begin sync

GetFrq

SEL

BACK

M2R... SEL

BACK

GetFreq.

Sync Press UP arrow button to begin sync

SEL

BACK

SendFrq SendFreq

Sync Press UP arrow button to begin sync

SEL

BACK

TxPower

Select option with arrow buttons

10 mW

25 mW

50 mW

SEL

BACK

Compat

Duet

DCH(X)

Select option with arrow buttons

SEL

BACK

Rf On?

Yes

Select option with arrow buttons

Use arrow buttons

to select value

Gain

Level meter at bottom of screen

SEL button to

select channel

(gain value

highlighted)

Gain

2220

7070

Hz Hz

Select setting with arrow

buttons: PSA, DPA, B6,

COS-11, MKE 2, M152, Oth

Lav, Custom, Line In, Dynamic

Select setting with arrow

buttons: PSA, DPA, B6,

COS-11, MKE 2, M152, Oth

Lav, Custom, Line In, Dynamic

Settings will

be stored

when

the BACK

button

is pressed.

NOTE:

When

StMode

is set to

Linked,

a single

gain value

ﬁeld will be

shown

www.lectrosonics.com 7

SEL

BACK

Setup...

SEL

BACK

ProgSw

AutoOn? SEL

BACK

AutoOn?

Select option with arrow buttons

ProgSw

Mute

Select option with arrow buttons:

(none), TalkBk, Power, Mute

Remote SEL

BACK

Remote

Select option with arrow buttons

BatType SEL

BACK

BatType

Alk.

Lith.

Select option with arrow buttons

SEL

BACK

Locked?

Select option with arrow buttons

Backlit SEL

BACK Select option with arrow buttons

Backlit

30 sec

5 sec

SEL

BACK

LED Off Select option with arrow buttons

SEL

BACK

Default

Settings

Yes

Select option with arrow buttons

LEDs

Off

SEL

BACK

About About SEL

BACK

About

DCHT

v1.10

/1.10

SEL

BACK

Key... KeyType SEL

BACK

KeyType

Shared

SEL

BACK

MakeKey

WipeKey SEL

BACK

WipeKey?

SEL

BACK

SendKey SendKey

Sync Press UP arrow button to begin sync

Yes

MakeKey

Yes

Select option with arrow buttons

Select option with arrow buttons:

Shared, Standard, Volatile,

Universal

Yes

Enable

Ignore

Yes

NOTE: The

key menu

selections

only show

when

DCH(X)

compatibility

mode

(encryption)

is selected.

NOTE:

Make,

Wipe and

Send Key

options

are only

available

in Shared,

Standard

and Volatile

Key Types.

They will

not be

displayed

in the

menu if

Universal

Key Type is

chosen.

LECTROSONICS, INC.8

Quick Start

1) Install good batteries and turn

power on (see page 4).

2) Set compatibility mode to

match the receiver (see page

8).

3) Connect signal source, select

input type and adjust input

gain for optimum modulation

level (see pages 8 and 9).

4) Set or sync frequency to match

receiver (see page 9). Also see

receiver manual for scanning

procedure.

5) Set encryption key type and

sync with receiver (see pages

10 and 11).

6) Set programmable switch to de-

sired function (see page 11).

7) Verify RF and audio signals are

present at the receiver (see

receiver manual).

Xmit Menu

Selecting Receiver

Compatibility Mode

The transmitter can be set to oper-

ate with different receivers:

Duet: M2R digital IEM/IFB receiver

DCH(X): M2R-X encrypted (FW

v3.x)

Input Menu

Adjusting the Input Gain for

Analog Inputs

For analog gain adjustment, two

multi-color LEDs on the top panel,

one for each channel, provide a

visual indication of the audio signal

level entering the transmitter. The

LEDs will glow either red or green to

indicate modulation levels as shown

in the following table.

Signal Level CH1 CH2

Less than -20 dB Off Off

-20 dB to +0 dB Green Green

+0 dB and greater Red Green

NOTE: This procedure is used

for analog inputs only. AES

digital input is factory set at

the industry standard level.

The LEDs on the top panel will

glow blue when the audio level

reaches about -40 FS.

It is best to go through the following

procedure with the transmitter in the

standby mode so that no audio will

enter the sound system or recorder

during adjustment.

1) With fresh batteries in the

transmitter, power the unit on in

the standby mode (see previ-

ous section Powering On in

Standby Mode).

2) Navigate to the Gain setup

screen.

Input...

Gain

Rolloff

StMode -40 -20 0

Gain

-40 -20 0

Gain

Setup

screen in

Linked

mode

Setup

screen in

Independent

mode

3) Position a microphone the way it

will be used in actual operation

and have the user speak or sing

at the loudest level that occur

during use, or set the output

level of the audio device to the

maximum level that will be used.

4) Use the and arrow buttons

to adjust the gain until the LED

glows green most or all of the

time, and ﬂicker red during the

loudest peaks.

www.lectrosonics.com 9

5) Turn the recorder or sound sys-

tem gain down before setting

the transmitter to the normal

operating mode and enabling

the audio output.

6) If the audio output level of the

receiver is too high or low,

use only the controls on the

receiver to make adjustments.

Always leave the transmitter

gain adjustment set according

to these instructions, and do

not change it to adjust the au-

dio output level of the receiver.

Selecting Input Type

AES digital or analog audio input is

selected with the InType menu item.

With the AES selected, there are no

additional settings needed for the

input. Analog input conﬁguration is

set with the InpCfg1 and InpCfg2

menu items.

Input...

InType

InpCfg1

InpCfg2

InType

Analog

AES

Selecting Input Conﬁguration

When the input type is set to Ana-

log, InpCfg1 and InpCfg2 menus

are used to conﬁgure the audio

input for the respective channels.

Use the and arrow buttons to

select the input type.

Input...

InType

InpCfg1

InpCfg2

InpCfg1

Line In

InpCfg2

Oth Lav

The Custom option opens a setup

screen that provides a variety of

settings. Press SEL to select the

custom setup item, then press the

and arrow buttons to adjust

the setting.

InpCfg2

Custom

MicLoZ

0V Neg

Channel select

Input impedance

Bias voltage

Audio polarity

Available settings:

Input impedance (Z): LOW, MID,

HIGH

Bias voltage: 0V, 2V, 4V

Audio polarity: + (pos.), – (neg.)

Xmit Menu

Selecting Frequency

The setup screen for frequency

selection offers multiple ways to

browse the available frequencies.

Xmit...

Freq

TxPower

Compat

Freq.

494.500

Freq.

494.500

Press the MENU/SEL button to

select each ﬁeld. Use the and

arrow buttons to adjust the frequen-

cy. Each ﬁeld will step through the

available frequencies in a different

increment.

NOTE: When the frequency

is highlighted, hold down

the MENU/SEL button

to increase or decrease

frequency in higher

increments.

LECTROSONICS, INC.10

M2R Menu

Selecting M2R Receiver

Functions

The M2R Receiver includes a Flex-

List™ mode where up to 16 mixes

can be accessed by name. This

feature enables a user to quickly

ﬁnd and listen to any of the perform-

er’s mixes on the stage. The mix

includes the name, frequency, mixer

settings and limiter settings. The

mix is easily shared via the M2R IR

port, added to the list of 16 mixes

and stored until cleared by the user.

The M2R allows the user to toggle

between the mixes, making trouble-

shooting issues easy and efﬁcient.

The DCHT, DCHT/E01’s M2R func-

tions create an easy interface with

the FlexList feature. The following

options are available:

GetFrq

Sync to receive (get) frequency from

the M2R transmitter via the IR port

SendFrq

Sync to send frequency to the M2R

transmitter via the IR port

GetFrq

Sync

SendFrq

Sync

Press the

arrow button

to begin sync

GetAll

Sync to receive (get) all available

settings from the M2R transmitter

via the IR port, including the per-

former’s name, (or whatever name

the user chooses for the DCHT,

DCHT/E01), frequency, mixer set-

tings and limiter settings.

NOTE: The GetAll function is

designed for trouble shooting and

allows for settings to be cloned to

transfer to another receiver if there

is a problem to be identiﬁed. Not all

copied settings are available on the

DCHT, DCHT/E01.

SendAll

Sync to send all available settings to

the M2R transmitter via the IR port,

including the performer’s name, (or

whatever name the user chooses for

the DCHT, DCHT/E01), frequency,

mixer settings and limiter settings.

NOTE: The SendAll function is

designed for trouble shooting and

allows for settings to be cloned to

transfer to another receiver if there

is a problem to be identiﬁed. Not all

settings are available on the DCHT,

DCHT/E01.

Press the

arrow button

to begin sync

GetAll

Sync

SendAll

Sync

Key Menu

Encryption Key Management

KeyType

The DCHT has four options for

encryption keys:

• Universal: This is the most con-

venient encryption option avail-

able. All encryption-capable

Lectrosonics transmitters and

receivers contain the Universal

Key. The key does not have

to be generated by the DCHT.

Simply set a Lectrosonics

encryption-capable receiver

and the DCHT to Universal,

and the encryption is in place.

This allows for convenient

encryption amongst multiple

transmitters and receivers, but

not as secure as creating a

unique key.

NOTE: When the DCHT is

set to Universal Encryption

Key, Make Key, Wipe Key and

Share Key will not appear in

the menu.

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