Williams Sound DLT 300 User manual

MAN 195A
Digi-Wave™ 300 Series
DLT 300 Digital Transceiver and DLR 360 Digital Receiver
USER MANUAL
DLT 300 DLR 360
The Digi-Wave 300 Series is not backward compatible with previous Digi-Wave transceivers or receivers.

DigiWave 300 Series Digital Transceiver and Receiver
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Contents
Safety Warnings and Recycling Instructions............................................................................................................................. 3
System Overview..................................................................................................................................................................... 4
DLT 300 Controls and Connectors .......................................................................................................................................... 5
DLT 300 Operation .................................................................................................................................................................. 5
Button Functions.............................................................................................................................................................. 5
DLR 360 Controls and Connectors.......................................................................................................................................... 7
DLR 360 Operation ................................................................................................................................................................. 7
Getting Started: Preprogrammed Systems .............................................................................................................................. 8
Before Programming the Digi-Wave™ System......................................................................................................................... 9
Programming the Digi-Wave™ System for 1-way Modes....................................................................................................... 11
Programming the Digi-Wave™ System for 2-way Modes....................................................................................................... 12
Programming the Digi-Wave™ System: DLT Optional Settings ............................................................................................. 13
Example 1: 2-way Mode, Tour Guide.................................................................................................................................... 15
How it works.................................................................................................................................................................. 15
2-Way Setup for Tour Guide Operation........................................................................................................................... 16
Example 2: Simultaneous Interpretation (1-way) .................................................................................................................... 18
How it works.................................................................................................................................................................. 18
1-way setup for simultaneous interpretation ................................................................................................................... 19
Example 3: Intercom (2, 3, 4, 5 or 6 simultaneous talkers) .................................................................................................. 20
How it works.................................................................................................................................................................. 20
2-way setup for Intercom ............................................................................................................................................... 21
Example 4: Repeater Mode ................................................................................................................................................... 22
REPEATER MODE setup................................................................................................................................................ 22
Dierences between DLT 300, DLT 100 2.0 and DLT 100...................................................................................................... 24
Dierences between DLR 360, DLR 60 2.0 and DLR 60........................................................................................................ 25
Dierences between DLT 100, DLT 100 2.0, and DLT 300 rmware versions......................................................................... 25
Specications........................................................................................................................................................................ 26
DLT 300 Transceiver....................................................................................................................................................... 26
DLR 360 Receiver .......................................................................................................................................................... 27
Troubleshooting..................................................................................................................................................................... 28
FAQs ..................................................................................................................................................................................... 29
FCC statements .................................................................................................................................................................... 30
2-year Warranty..................................................................................................................................................................... 31
Digi-Wave™ 300 Series
DLT 300 Digital Transceiver and DLR 360 Digital Receiver

DigiWave 300 Series Digital Transceiver and Receiver
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Safety Warnings and Recycling Instructions
HEARING SAFETY
CAUTION!
This product is designed to amplify sounds to a high volume level which could potentially cause hearing damage if used
improperly. To protect your hearing and the hearing of others:
(1) Turn the volume down before putting on the earphone or headphone, and then adjust the volume to a comfortable level,
(2) Set the volume level at the minimum setting that you need to hear,
(3) if you experience feedback (a squealing or howling sound), reduce the volume setting and move the microphone away from the
earphone or headphone, and (4) Do not allow children or other unauthorized persons to have access to this product
MEDICAL DEVICE SAFETY
CAUTION!
1. Before using this product with an implantable or other medical device, consult your physician or the manufacturer of your
implantable or other medical device.
2. If you have a pacemaker or other medical device, make sure that you are using this product in accordance with safety
guidelines established by your physician or the implantable device manufacturer.
RECYCLING INSTRUCTIONS
Battery Safety and Disposal
Help Williams Sound protect the environment! Please take time to dispose of your equipment properly. Please do NOT
dispose of batteries in the household trash. Please take the batteries to a retail or community collection point for recycling.
Product Recycling:
Please do NOT dispose of your Williams Sound equipment in the household trash. Please take the equipment to an
electronics recycling center or return the product to the factory for proper disposal.

DigiWave 300 Series Digital Transceiver and Receiver
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System Overview
The Digi-wave™ system is a patented, digital spread-spectrum (DSS), simultaneous two-way wireless listening system
operating in the 2.4 GHz band. Due to it’s frequency-hopping algorithm, it avoids interference and is a very secure method of
communication. For a more detailed explanation of how Digi-wave technology works, please visit our website and download the
“Digi-wave™ Technology White Paper” (under “Support – Downloads - Tech Bulletins”).
A Digi-Wave communication system consists of at least one transceiver (DLT 300 ) and various combinations of transceivers and
receivers (DLR 360 ) depending on the venue.
The DLT 300 is a 2-way transceiver, meaning that it can transmit and receive audio simultaneously. It can operate in one of 3
dierent modes:
1. In Two-way Mode, a speaker (with a DLT 300) can hear another speaker’s voice (from a second DLT 300) and, at
the same time, can also transmit their own voice. In this way, two-way communication is established (similar to a phone
conversation). Two-way mode can only be established between DLT 300 units. In addition, DLR 360 receivers in the
same group can also hear the broadcast.
2. In One-way Mode, one DLT 300 acts as a transmitter (speaker) and another DLT 300 acts as a receiver (listener). In
addition, DLR 360 receivers in the same group can also hear the broadcast. There are 4 one-way modes.
3. In Repeater Mode, the DLT 300 receives audio from another DLT 300 and re-broadcasts the signal to increase the
transmitted range of the person speaking. In this way, larger groups can be covered by using one or more DLT 300’s
acting as repeaters. Listeners can have either DLT 300’s or DLR 360’s to listen to the broadcast.
4. In Intercom Mode, up to six people can talk simultaneously. All of the DLT 300’s are in 2-way mode in the same
group. More DLT’s can be in the group, but only six can have live mics at the same time (the seventh DLT who wishes
to speak pushes their TALK button and knocks the sixth talker o). DLR’s can listen-in on the conversation if desired.
The Repeater function only operates in 1-way mode. It is not available in a 2-way scenario.
The DLR 360 is a receiver only. Users of receivers can only hear what is being broadcast by DLT(s).
Combinations of one or more DLT 300’s and DLR 360’s in One-way mode, Two-way mode, or Repeater mode can be used to
facilitate dierent events, depending on what needs to be spoken and what needs to be heard. Examples of scenarios will be
covered here.
Typical Scenarios include:
Guided Tours - with one or more tour guides (2-way), with audience participation (2-way), or without audience participation (1-way)
Language Interpretation - one or more interpreted languages transmitted to audience (1-way)
Intercom - with up to six people able to speak simultaneously (2-way)
Note: there are many more scenarios than are covered in this manual, however these would be variations on the ones discussed
here. Rules of Operation for 1-way or 2-way mode must be followed for successful operation.
Note: for simplicity, throughout the rest of this manual, the DLT 300 may be referred to as a “DLT” and the
DLR 360 may be referred to as a “DLR”. Similarly, Master 1, Master 2 and Guest may be referred to as “M1”,
“M2”, and “GST”.
The Digi-Wave 300 Series is not backward compatible with previous Digi-Wave
transceivers or receivers.

DigiWave 300 Series Digital Transceiver and Receiver
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DLT 300 Controls and Connectors
INTERNAL SPEAKER
LCD DISPLAY
A540
LED INDICATORS
TALK BUTTON
WITH BRAILLE DOT
VOLUME / SELECT UP
VOLUME / SELECT DOWN
POWER / MENU
HEADPHONE
JACK 3.5 MM
MIC JACK 3.5 MM
INTERNAL
MICROPHONE
30-PIN DOCKING/
CHARGING CONNECTOR
DLT 300 Operation
BUTTON FUNCTIONS
POWER / MENU BUTTON
·Press and hold for power On/O
·Press once to change section when in setup menu
·Review setup (push repeatedly to advance to next setting)
·Attendance checking can only be done with a Master unit. Must have address assigned between 1 — 99 to allow
attendance checking function. To check attendance, push and release the button and the number of attendees
will be displayed for 2 seconds.

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QUICK GROUP CHANGE / SETUP BUTTONS
·Press and hold and together for 3 seconds to enter setup menu
·Press and hold button for 3 seconds to enter quick group change mode. The GRP light will ash. Then use
or to change groups. To exit, push again or just wait until the unit times out.
· Use these buttons to select channels in simultaneous interpretation mode
MICROPHONE LEVEL ADJUSTMENT
·Hold the button for two seconds to enter mic level adjustment. For level adjustment use or
LINE LEVEL ADJUSTMENT
·Hold the button for two seconds to enter mic level adjustment. For level adjustment use or
TONE ADJUSTMENT
·Press and hold the – and + buttons simultaneously for 2 seconds. The LCD will display the last tone setting t: (1 - 9).
·Using the -/+ buttons , adjust the tone up or down: 1 = Most bass 5 = Flat (Default) 9 = Most treble
·Press and hold the – and + buttons simultaneously for two seconds to save the tone setting.
VOLUME CONTROL / SELECT BUTTON
·Control / Volume
·Use to navigate selections in setup menu.
·Access and adjust tone control (0-53)
TALK BUTTON
· Press button momentarily once to activate the microphone. Press button once more to turn o the microphone
· Press and hold the button for approximately 2 seconds to mute other DLT 300 Guest units. Only the M1 and M2 have this
function.
([TALK] LED will blink on all units when in mute mode).
Battery Charging – DLT 300
1. This Product uses an internal rechargeable Lithium Polymer battery.
2. Use the 30 Pin connector, located on the bottom of DLT 300 to charge the battery. Full charging time is approximately
12 hours. The Red LED ashes while charging. The Green LED will be on steady when the battery is charged.
3. Battery Maintenance - Charge the battery at room temperature.

DigiWave 300 Series Digital Transceiver and Receiver
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DLR 360 Controls and Connectors
A539
RED LED GREEN LED
CH/GROUP
CHANGE
VOLUME
ADJUST
POWER
HEADPHONE
JACK 3.5 MM
SPEAKER
BATTERY
STRENGTH
BATTERY TYPE
SWITCH
LANYARD
SLOT
30-PIN
DOCKING/
CHARGING
CONNECTOR
STRENGTH DLT#1
STRENGTH DLT#2
NUMERIC DISPLAY
NUMERIC TYPE
ANTENNA
SYMBOL
BATTERY
COMPARTMENT
DLR 360 Operation
1. Insert 2 AAA batteries into the DLR. Observe correct polarity. You can use either Alkaline or NiMH, but make sure the battery
switch is in the NiMH position to charge NiMH batteries. If Alkaline batteries are used, put the battery switch in the ALK position.
2. Power on/o by holding the power button for 3 seconds.
3. In 1-way mode, the DLR will seek active DLTs; press channel button up or down to seek next active DLT. In 2-way mode,
group must be selected.
4. The Antenna Symbol will ash, and there will be no Signal Strength Bars, if not synchronized with a DLT.
5. If the units are synchronized, briey push the power button to show group assigned (0 to 99).
6. To change group, hold the and buttons for 3 seconds until “GROUP” is ashing.
7. Use or buttons to select group number.
8. Hold and buttons for 3 seconds again to save the group number.
9. To change volume level press or buttons, display will show 00 through 30.
10. User can listen using the speaker on the back of the DLR or by plugging in stereo or mono earphones into the jack (which
defeats the speaker operation).
11. Low battery indicator will show as a blinking battery symbol with no bars inside it.
12. The DLR will automatically power down after 5 minutes if not synchronized with a DLT.
Battery Charging – DLR 360
1. This Product can charge AAA NiMH batteries in the battery compartment when the battery switch is in the NiMH position.
2. Use the 30 Pin connector, located on the bottom of DLT 300 to charge the battery. Full charging time is approximately 5 hours.
The Red LED ashes while charging. The Green LED will be on steady when the battery is charged.
3. Battery Maintenance - Charge the battery at room temperature.
A539
RED LED GREEN LED
CH/GROUP
CHANGE
VOLUME
ADJUST
POWER
HEADPHONE
JACK 3.5 MM
SPEAKER
BATTERY
STRENGTH
BATTERY TYPE
SWITCH
LANYARD
SLOT
30-PIN
DOCKING/
CHARGING
CONNECTOR
STRENGTH DLT#1
STRENGTH DLT#2
NUMERIC DISPLAY
NUMERIC TYPE
ANTENNA
SYMBOL
BATTERY
COMPARTMENT

DigiWave 300 Series Digital Transceiver and Receiver
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Getting Started: Preprogrammed Systems
If a system has been purchased, you should not need to perform any programming. The system will have been congured to your
order. Turn Master 1 on rst so other units can pair. Guest units will turn o after 5 minutes if they cannot nd a master.
1. Charge all DLTs. If using DLRs, either charge them with NiMH batteries or insert fresh Alkaline batteries. Make sure the battery
switch is in the correct position for “Alkaline” or “NiMH”. Any DLRs that will be used should have fresh batteries.
2. Identify and turn on the Master 1 rst, usually identied by a grey silicone cover. Turn on the DLT by holding the power button
until the LCD screen comes on. If Master 2 or Guests are powered up rst they will turn o after a few minutes if not paired
with the M1. As Master 2 and Guests are paired with the M1 the M1 and M2 will show C-#. The # refers to how many DLTs are
paired within the group, i.e. C-12 means that 12 DLTs are paired with the M1 or M2 within their group. This can be utilized as
an attendance checker making sure everyone is connected with the group.
3. Once all the DLTs are on, you can check the set-up status of all units by pressing the power/menu button momentarily to scroll
through the settings:
Master 1 and Master 2 screens will display:
C-6 (Chairman plus six = number of participants within the group).
ADD Address number (0 – 1023). Each DLT must have its own individual address.
Group number (0 – 1023) must be the same number for the group.
CODE Only shows if a code has been entered (code number will NOT be displayed).
“F-#” Denotes software version.
Time Displays the time of day.
All Guest units will display:
Address Number
Group Number
Secure Key Code (if entered)
Software Version
Time of Day
4. If headsets are to be worn, plug them into the jacks on the top of the DLTs making sure that the Microphone and Earphone
plugs are fully inserted into the correct jacks.
5. The Master 1 will usually be the rst speaker and should press the talk button momentarily to activate the microphone. This will be
conrmed by the red LED around the talk button illuminated. If the talk LED is ashing, the talk button was held too long and the
talk mute has been activated in the system. Hold the talk button until the LED’s stop ashing to deactivate talk mute.
6. The Master 2 and all Guest units should now be hearing audio from the M1 unit. Listening volume levels can be adjusted by
pressing the – or + button. One other DLT can activate the Talk button for team tour or teach applications. A maximum of two
talkers can be activated at any one time. For a Guest unit to talk, either the M1 or M2 will have to turn their talk button o by
quickly pressing their talk button.

DigiWave 300 Series Digital Transceiver and Receiver
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Before Programming the Digi-Wave™ System
Depending upon the mode chosen, up to six people can talk in a group at any given time. The M1 will have rst priority, M2 has
second priority and Guest units have third priority. When two or more people are talking in a group, the participants can hear their
voices with the DLTs or DLRs.
The M1 and M2 have the ability to lock out other talkers by holding down the TALK button for three seconds. All system TALK
LEDs will continuously ash while other participants are locked out of the TALK feature.
There are 4 basic steps to programming a Digi-Wave system.
1. Decide which mode you need.
A. 2-Way Modes
In 2-way mode, DLTs can hear and talk to each other, just like having a phone conversation or a conference call. DLRs can
listen to the conversation. Common applications include: Tours with multiple Tour Guides, Tours with audience participation
(Q&A), Wireless Intercom, Portable Discussion and Personal Communication.
There are two 2-way Modes represented by these symbols on the LCD Display:
2-way: (4 simultaneous talkers maximum)
2-way - Intercom: (6 simultaneous talkers maximum)
Rules of Operation (2-way modes)
The following rules must be followed. Failure to adhere to these rules will result in unpredictable, unsupported operation.
• There must be one, and only one Master 1 (M1) per group.
• If the M1 unit is o, the Master 2 and Guest units will turn o after a few minutes.
• Master 2 is optional and there can only be one per group.
• Each DLT must have its own address and the address cannot be duplicated within a group.
• Maximum 4 talkers (in 2-way mode) or 6 talkers (in 2-way Intercom mode) can operate simultaneously within a group.
• Maximum four Groups can operate simultaneously within the same area, but each group must be assigned its own group
number.
• When using four simultaneous groups, group numbers must be sequential. i.e. 11, 12, 13, 14. Any numbers 0-1023 can
be used (or 0-99 if DLRs are used in the system).
• Attendee count will only work with addresses 1-99 (Maximum 100 DLT’s with one Master 1 at address 0).
• With Secure Key Code active, all DLTs within the group must have the same 4-digit code entered. (DLRs will not work
with secured DLTs)
B. 1-Way Modes
In 1-way mode, communication ows in one direction. It ows from the main speaker’s DLT, to secondary DLTs or DLR’s. If
repeater mode is used, the repeater DLTs listen to the primary DLTs and transmit to DLTs and DLRs assigned to the same
Group/Channel. The most common applications are: Simultaneous Interpretation with one or more interpreters, or Tours
without audience participation (no Q&A).
There are (4) 1-way Modes represented by these symbols on the LCD Display:
1-way - Main Speaker: (talks on Channel 0)
1-way - Interpreter: (receives on Channel 0, speaks on Channel designated for their language)
1-way - Repeater Mode: (Units out of range of the primary unit(s) receive their broadcast from these units)
1-way - Listen Only: (receive the broadcast from either the primary units or the repeater units, depending on range)

DigiWave 300 Series Digital Transceiver and Receiver
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Rules of Operation (1-way modes)
The following rules must be followed when setting up any Digi-Wave™ system. Failure to adhere to these rules will result in
unpredictable, unsupported operation.
• Up to 15 channels can be used simultaneously, i.e. one oor and 14 interpreters.
• There must be one Master 1 (usually this is also the oor), and only one, per group.
• Each Interpreter must be assigned their own channel number.
• Repeater function can only be used in 1-Way mode.
• When repeater function is used, all 15 channels can be utilized in one-way mode, i.e. one oor and 14 interpreters.
• When repeaters are used, Floor (channel 0) must be assigned as the master unit for the group. All other DLTs have to be
assigned as “GST”.
2. Decide Speaking Priority for each DLT.
There are 3 levels of priority. The M1 has rst priority, M2 has second priority and Guest units have third priority. The M1 or M2
will have to turn OFF their talk access to allow the Guest units to talk. When 2-6 people are talking in a group the participants can
hear their voices in the DLTs or DLRs.
The M1 and M2 have the ability to lock out other talkers by holding down the TALK button for three seconds. All system TALK
LEDs will continuously ash while other participants are locked out of the TALK feature. The Master 1 can override anyone else
talking within the group. Master 2 has talking priority over Guests.
Speaker priority is assigned as follows:
1st priority — Master 1 ( M1 ):
2nd priority — Master 2 ( M2 ):
3rd priority — Guest ( GST ):
3. Decide what Address(es) you will need.
Each DLT transceiver must have a unique address. Refer to the “Rules of Operation” (under Step 1) for the mode you are using, to
determine how you will address the units.
4. Decide what Group(s) you need.
Each set of people who want to talk and/or listen to each other must be in the same group. Up to 4 Groups can operate
simultaneously within range of each other.