Lectrosonics D-Squared DSQD User manual

DSQD
4 Channel Digital Receiver
DSQD, DSQD/AES3
INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com
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DSQD Manual
LECTROSONICS, INC.
2
Introduction
The latest digital radio technology is employed in the
DSQD receiver to set a new standard for performance
and flexibility. Four discrete audio channels are packed
into a single half-rack chassis, with balanced analog
and Dante®digital network outputs. The receiver tunes
continuously across the UHF band from 470.100 to
614.375 MHz.
The digital architecture delivers studio quality audio with
ultra-low latency. The receiver includes an extended
operating range rivaling the best analog and Digital
Hybrid Wireless®systems with tracking filters that stay
centered on the selected frequency.
The DSQD is also backward compatible with any Digital
Hybrid Wireless® transmitters including the SM Series,
LT, HM Series, SSM, HH Series, UM400, UM400a, LM
Series, MM Series, and WM.
The receiver provides a USB port for firmware up-
dates, an IR port for fast setup and an ethernet port for
control. A large, high resolution, backlit LCD and large
membrane switches provide an intuitive interface that is
highly visible in daylight or dimly lit conditions.
Wireless Designer™ software integrates the digital and
Digital Hybrid Wireless®into a single control panel with
site scanning and frequency coordination. The software
is free and can be used while connected to equipment
or offline in planning a multi-channel system.
Antenna ports on the rear panel accept input from
remote antennas, with a “loop-thru” output to another
mainframe using the internal multicoupler. A kit is also
available to mount antenna inputs (BNC connectors) on
the front panel.
General Technical
Description
Encryption
When transmitting audio, there are situations where
privacy is essential, such as during professional sport-
ing events, in court rooms or private meetings. For
instances where your audio transmission needs to be
kept secure, without sacrificing audio quality, Lectroson-
ics implements AES256 encryption in our digital wire-
less microphone systems. High entropy encryption keys
are first created by the DSQD Receiver. The key is then
synced with an encryption-capable digital transmitter,
via the IR port. The audio will be encrypted and can
only be decoded if both DSQD and transmitter have the
matching encryption key. If you are trying to transmit
an audio signal and keys do not match, all that will be
heard is silence.
Table of Contents
Introduction ........................................................................... 2
General Technical Description ............................................ 2
Encryption............................................................................ 2
Digital Hybrid Wireless®Technology .................................... 3
LCD Screen ......................................................................... 3
Diversity Reception .............................................................. 3
Infrared Sync........................................................................ 3
What is Dante? .................................................................... 3
Panels and Features.............................................................. 4
DSQD Front Panel ............................................................... 4
DSQD Rear Panel................................................................ 4
IR (infrared) Port .................................................................. 5
USB Port .............................................................................. 5
Headphone Volume Adjustment........................................... 5
Channel Selector Buttons .................................................... 5
Dante Ports (if Dante module is installed)............................ 5
Ethernet Port........................................................................ 5
Multi-Frame Communication ................................................ 5
Power Inlet ........................................................................... 5
LCD Menu Map....................................................................... 6
Navigating the Menus ........................................................... 8
RF Setup Menu ...................................................................... 8
RF Frequency ...................................................................... 8
Frequency Scan................................................................... 8
Group Tune .......................................................................... 9
Group Tune Setup................................................................ 9
Diversity Setup..................................................................... 10
Audio Setup Menu ................................................................. 12
Audio Level .......................................................................... 12
Audio Polarity ....................................................................... 12
Smart Noise Reduction........................................................ 12
Compatibility Modes............................................................. 12
Talkback Setup..................................................................... 12
IR Sync & Encryption Menu.................................................. 13
Encryption Key Management............................................... 13
Encryption Keys ................................................................... 13
Sync Settings....................................................................... 13
Tools and Settings Menu...................................................... 14
RX On/Off ............................................................................ 14
TX Battery Type ................................................................... 14
Front Panel Setup ................................................................ 14
Antenna Bias Power............................................................. 14
Network Settings ................................................................. 14
Edit Names .......................................................................... 15
Restore Defaults .................................................................. 15
Pilot Tone Bypass................................................................. 15
About.................................................................................... 15
Links..................................................................................... 15
Specifications and Features................................................. 15
Wireless Designer ................................................................. 15
Firmware Update Instructions.............................................. 15
Supplied Hardware ................................................................ 16
Unpacking the Unit............................................................... 16
Items Included in the Box:.................................................... 16
Optional Accessories............................................................ 17
Installing two DSQD Receivers into a SingleRack Space.. 18
Service and Repair ................................................................ 20
Returning Units for Repair ................................................... 20

Digital Receiver
Rio Rancho, NM 3
Digital Hybrid Wireless®Technology
All wireless links suffer from channel noise to some de-
gree, and all wireless microphone systems seek to mini-
mize the impact of that noise on the desired signal. Con-
ventional analog systems use compandors for enhanced
dynamic range, at the cost of subtle artifacts (known as
“pumping” and “breathing”). Wholly digital systems defeat
the noise by sending the audio information in digital form.
To support the installed base of Digital Hybrid Wireless
systems, the DSQD receiver includes DSP algorithms
for compatibility with Digital Hybrid Transmitters.
The DSQD receiver uses a DSP generated ultrasonic
pilot tone to reliably mute the audio when no RF carrier
is present. The pilot tone must be present in conjunc-
tion with a usable RF signal before the audio output
will be enabled. 256 pilot tone frequencies are used
across each 25.6 MHz block within the tuning range of
the system. This alleviates erroneous squelch activity in
multichannel systems where a pilot tone signal can ap-
pear in the wrong receiver via IM (intermodulation).
LCD Screen
Easy navigation of all setup parameters is provided by a
full color, backlit LCD screen and membrane push but-
tons. The high resolution display provides comprehen-
sive monitoring of all receiver parameters.
Diversity Reception
Three different receiver diversity schemes can be
employed depending on the needs of the application,
including antenna switching (during packet headers
for seamless audio), Digital Ratio Diversity, or Digital
Frequency Diversity.
Infrared Sync
The DSQD has a bi-directional IrDA interface which
allows quick syncing of settings and encryption keys
to transmitters (including legacy transmitters) with the
push of a button. The receiver also offers tuning groups
to allow the user to set up a list of frequencies, allowing
for easy tracking of frequency tuning in the transmitters.
What is Dante?
Audinate’s patent pending Dante™ technology is a
flexible Internet Protocol (IP) and Ethernet based digital
AV network technology that eliminates the many bulky
cables needed to provide point-to-point wiring for ana-
log AV installations.
With Dante, existing infrastructure can be used for high
performance audio as well as for ordinary control, moni-
toring or business data traffic. Digital networks utilize
standard IP over Ethernet offering high bandwidth ca-
pable of transporting hundreds of high quality channels
over Gigabit Ethernet.
Set-up and configuring the system is made easy as
well, saving enormous installation costs and long term
cost of ownership on a digital network. The physical
connecting point is irrelevant: audio signals can be
made available anywhere and everywhere. Patching
and routing now become logical functions configured in
software, not via physical wired links.
Summary of Dante Benefits
• Plug-and-play technology – automatic discovery
and simple signal routing
• Reduced Cost & Complexity- No special skills
required to set up audio networking
• Sample accurate playback synchronization
• Add/remove/rearrange components at will
• Deterministic latency throughout the network
• Support mixed bit depths and mixed sample
rates over one network
• Scalable, flexible network topology, supporting a
large number of senders and receivers
• Supports 1Gbps networks
• Supports a single integrated network for audio,
video, control, monitoring
• Uses inexpensive, off-the-shelf computer
networking equipment

DSQD Manual
LECTROSONICS, INC.
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USB Port
Menu navigation
buttons
Power switch
Return to
previous screen
Panels and Features
IR Port
Headphone Volume
Adjustment Headphone Jack
Reset Button
DSQD Front Panel
DSQD Rear Panel
Menu/Select
Channel Selector Buttons
Power Inlet
Dante Ports
Antenna B Input
50 Ohm BNC
XLR Analog Output
Connectors
Ethernet
Port
Antenna Bias
Power LEDs
Antenna A
Loop-thru Output
50 Ohm BNC
Multi-Frame
Communication
Antenna B
Loop-thru Output
50 Ohm BNC
Antenna A Input
50 Ohm BNC
Or AES3 Outputs on 2
TA3M Jacks (in Place
of The 2 Dante Ports
Shown)

Digital Receiver
Rio Rancho, NM 5
IR (infrared) Port
Frequency and settings can be transferred to and from
the DSQD receiver via this port to an IR enabled trans-
mitter to simplify setup.
USB Port
For firmware updates and connection to Wireless De-
signer software.
Reset Button
For MCU recovery in the event of an interrupted firm-
ware update.
Headphone Volume Adjustment
Knob adjusts the headphone monitor.
Antenna Bias LEDs
Illuminated when antenna bias power is turned on.
Channel Selector Buttons
From the main screen, pressing a Channel Selector
Button will show a detailed channel screen (see Quick
Start for more information).
NOTE: Press and holding channel selector buttons
will initiate a sync with a transmitter from most
screens.
Antenna Loop-thru
For multiple DSQD installations in a rack, a “loop-thru”
is available to feed two or three receivers from a single
antenna pair. Connect coaxial cables from the multicou-
pler loop-thru outputs on the first receiver to the anten-
na inputs on the next receiver in the stack.
WARNING: Do not enable antenna power if
connecting antenna loop-thru outputs on one
receiver to the antenna inputs on another
receiver.
Dante Ports (if Dante module is installed)
Connects to a Dante digital audio network.
AES3 Ports (DSQD/AES3 option)
AES3 outputs on two TA3M jacks (in place of the two
Dante ports shown)
Ethernet Port
Used for setup, monitoring and control with Wireless
Designer software or 3rd party control systems con-
nected via a network.
Multi-Frame Communication
Allows offline, multi-frame communication and frequen-
cy coordination (coming soon).
Power Inlet
The locking DC coaxial inlet requires 7-18 VDC and
draws a maximum of 2.5 A at 7 V (with all channels
powered, Dante module powered, and antenna bias
power on both channels).
Operating Instructions
To begin using the DSQD quickly, follow the steps be-
low. The other settings can be adjusted as needed.
1. Set Channel Frequency: Assign a frequency to
each channel, which will correlate to the accom-
panying Channel Selector Button (1-4). From
the Quick Access Menu or the RF Setup Menu,
manually set frequency on the RF Frequency
screen or scan for available frequencies and assign
a frequency to each channel from the Frequency
Scan screen.
2. Set Compatibility Mode: From the Quick Access
Menu or the Audio Setup Menu, set compatibility
modes for each channel.
3. Set Encryption Keys: From the IR Sync & En-
cryption Menu, select a key type and then create a
key (if needed).
NOTE: See Encryption Key Management for
more instruction.
4. Sync Settings: From the Quick Access Menu or
the IR Sync & Encryption Menu, initiate sync for
each channel via the IR port. Hold the target trans-
mitter close to the IR port on the front panel of the
DSQD. Select SEND ALL. A message will appear
on the main screen letting you know the sync was
successful. Messages will appear letting you know
if the sync was successful.
NOTE: See Sync Settings for more instruction.
5. You can also quickly check a channel’s status by
pressing a Channel Selector Button from the
DSQD home screen. This screen allows you to
change a variety of settings, including status of the
compatibility mode, diversity setting, transmitter bat-
tery status, audio level and audio mute status.
Carrier
frequency
Compatibility
Mode
Audio
Level
Channel Selector
Buttons
Transmitter
Battery Status
Group Tune
On/Off
Mute
On/Off
Diversity
Setting
RF Level
with 10 seconds
of history

DSQD Manual
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RF FREQUENCY
FREQUENCY SCAN
GROUP TUNE
SEL
BACK
SEL
BACK
SEL
BACK
SYNC
SETTINGS
SEL
BACK
Use arrow keys
to enable or
adjust
Press SEL to
select desired
channel
Press SEL to
select desired
channel
Quick
Menu
Use arrow keys
to select tuning
group
SEL
BACK
COMPATIBILITY
MODES
Use arrow keys to
select desired
compatibility mode
Press SEL to
select desired
channel
DIVERSITY
SETUP
SEL
BACK
RF
Setup
RF FREQUENCY
FREQUENCY SCAN
GROUP TUNE
SEL
BACK
SEL
BACK
SEL
BACK
GROUP TUNE
SETUP
SEL
BACK
Use arrow keys
to enable or
adjust
Press SEL to
select desired
channel
Press SEL to
select desired
channel
SEL
BACK
SEL
BACK
AUDIO POLARITY
SMART NOISE
REDUCTION
SEL
BACK
Use arrow keys to
select desired
talkback function
Audio
Setup
SEL
BACK
AUDIO LEVEL
TALKBACK
SETUP
Use arrow keys
to select tuning
group
Press SEL to
select desired
channel
Use arrow keys
to adjust audio
output level
Press SEL to
select desired
channel
Use arrow keys
to select desired
audio setting
Press SEL to
select desired
channel
Use arrow keys
to select noise
reduction setting
Press SEL to
select desired
channel
SEL
BACK
COMPATIBILITY
MODES
Use arrow keys to
select desired
compatibility mode
Press SEL to
select desired
channel
Use arrows to
select desired
function
Press SEL to
toggle between
settings
Use arrow keys to
highlight desired
command
Press SEL to
select desired
function
Use arrow keys to
highlight desired
command
Press SEL to
select scan
setting
Use arrow keys to
select desired
group/parameter
Press SEL to
select setting
Use arrow keys to
highlight desired
command
Press SEL to
select scan
setting
LCD Menu Map

Digital Receiver
Rio Rancho, NM 7
ENCRYPTION KEY
MANAGEMENT
SEL
BACK
SEL
BACK
SYNC SETTINGS
SEL
BACK
SYNC KEY
Use arrow keys to
highlight desired
command
Press SEL to
select desired
function
Tools &
Settings
FRONT PANEL
SETUP
DANTE POWER
ENABLE
SEL
BACK
SEL
BACK
ANTENNA
BIAS POWER
SEL
BACK
Use arrow keys
to enable or
disable Dante
Use arrow keys
to enable or
disable power
Press SEL to
select choose
antenna
NETWORK
SETTINGS
SEL
BACK
SEL
BACK
EDIT NAMES
RX ON/OFF
TX BATTERY
TYPE
SEL
BACK
SEL
BACK
TX BATTERY
TIMER ALERT
SEL
BACK
Use arrow keys
to select RX
power on/off
Press SEL to
select desired
channel
Use arrow keys
to select settings
Press SEL to
select desired
channel/function
IR Sync &
Encryption
Use arrow keys to
highlight desired
command
Press SEL to
select desired
function
SEL
BACK
RESTORE
DEFAULTS
Use arrow keys
to select yes or
no
Press SEL to
restore default
settings
Use arrow keys to
select encryption
key
Press SEL to
confirm
selection
Use arrow keys
to select battery
type
Press SEL to
select desired
channel
Use arrow keys
to select desired
setting
Press SEL to
select desired
channel
Use arrow keys
to select desired
name
Press SEL to
edit names
SEL
BACK
PILOT TONE
BYPASS
Use arrow keys
to adjust setting
Press SEL to
select desired
function
Use arrow keys
to adjust setting
Press SEL to
select desired
function
SEL
BACK
LOCALE
SEL
BACK
ABOUT
SEL
BACK
LINKS Use phone to scan QR code for more information
Use arrow keys
to select locale
Press SEL to
confirm
selection
HARDWARE
STATUS
SEL
BACK

DSQD Manual
LECTROSONICS, INC.
8
Navigating the Menus
All Setup Menu items are arranged in a vertical list on
the LCD. Press MENU/SEL to enter the menu, then
navigate with the UP and DOWN arrows to highlight the
desired setup item.
NOTE: To guarantee chosen parameters are
saved, exit a setup screen BEFORE powering
down DSQD.
Press MENU/
SEL to enter
the menu
Press the UP and DOWN arrows
to navigate and highlight the
desired menu item
Press MENU/SEL
to enter the setup
of the highlighted
item
Press BACK to return to the previous
screen and save selected settings
Press the UP and DOWN
arrows to navigate and highlight
the desired item or edit
selected field
Quick Access Menu
The quick access menu is a list of menu items grouped
together for DSQD quick start:
• RF Frequency • Sync Settings
• Frequency Scan • Compatibility Modes
• Group Tune
RF Setup Menu
RF Frequency
Allows manual selection of the operating frequency for
each channel.
NOTE: Display varies with compatibility mode
selection.
Frequency Scan
1. To begin, press MENU/SEL to start the scan.
NOTE: All four channels scan at the same time.
You can also select individual channels for
scanning by pressing the channel selector buttons.
2. Once the scan has completed, use UP and DOWN
arrows to navigate to ZOOM, then press MENU/
SEL.
3. Press one of the four channel selector buttons. The
word TUNING will flash on the screen to let you
know you are tuning. Press the UP and DOWN ar-
rows to tune the channel into the area of lowest RF
activity.
Press BACK to save
frequency to channel

Digital Receiver
Rio Rancho, NM 9
Group Tune
Assign a tuning group to a channel.
Group Tune Setup
Tuning groups allow the user to set up a list of frequen-
cies, allowing for easy tracking of frequency tuning in
the transmitters. Use MENU/SEL to move through the
options and UP arrow to make a selection.
• Four tuning groups are available, U, V, W, X.
• Each group has the option to add or delete a fre-
quency from the list on the right. Use the UP and
DOWN arrows to change frequencies, MENU/SEL
to move through the options, and the UP arrow to
select ADD or DELETE. Push the BACK button to
return to the Group Tune Setup Screen.
• Each group can store up to 32 frequencies.
• The user can then send or get all frequency groups.
When a tuning group is assigned, the frequency control
is limited to the frequencies contained in the tuning
group. It also limits the available frequencies in the
frequency coordination process.

DSQD Manual
LECTROSONICS, INC.
10
Diversity Setup
Diversity is a DSQD feature that safeguards against loss of audio signal caused by RF interference. The DSQD archi-
tecture allows three different types of diversity reception. Once chosen, the diversity mode is shown on other screens
with a link icon. (Visit the DSQD page on lectrosonics.com for a video with more details on Diversity.)
Ratio Diversity
Icon
Frequency Diversity
Icon
• Switched: Of the two antennas available on the DSQD, the receiver selects the antenna with the best signal. In
this mode, there are four receivers available.
• Ratio: In this mode, two receiver channels can be “paired” as one receiver. Either Channels 1 and 2 or channels 3
and 4 can be combined into a pair. One receiver in a pair is fixed on Antenna A and the other receiver in a pair is
fixed on Antenna B. The DSQD automatically uses a blend of audio based on receivers signal quality..

Digital Receiver
Rio Rancho, NM 11
• Frequency: Again, the receiver channels are paired. In this mode, each channel is set to a different frequency. The
DSQD automatically uses whichever receiver’s RF signal quality is better. The use of separate frequencies helps
minimize dropouts caused by multi-path phenomenon. This technique uses both switched and ratio diversity for
maximum effectiveness.
NOTE: To maximize frequency diversity, choose frequencies separated as far apart as possible.
When using Frequency Diversity, performance can be optimized by using a calibration technique to balance the audio
levels between the two transmitters in the pair. Follow these steps:
1. Plug headphones into the DSQD front panel monitor jack.
2. Select CALIBRATE on the Diversity Setup screen.
3. The Calibrate TX Gain pop-up screen will appear.
4. Adjust the microphone gain on each transmitter to balance the audio level while observing the green bar on the
screen. When audio level is balanced, the green bar is minimized.
WARNING: Use caution when calibrating. Resulting headphone volume may be very loud.
WARNING: Transmitter gain should also be set in accordance with transmitter manual to achieve correct
modulation.

DSQD Manual
LECTROSONICS, INC.
12
Audio Setup Menu
Audio Level
Set audio output level with the level control. The mute
button is a toggle used to mute or unmute the audio
output. The TONE check box is used to generate a
1 kHz test tone at the audio output.
Audio Polarity
Select normal or inverted polarity for each
audio channel.
Smart Noise Reduction
Three levels of noise reduction are available: High,
Normal and Off.
NOTE: Smart Noise Reduction is only available for
digital hybrid compatibility modes.
Compatibility Modes
Multiple compatibility modes are available to match vari-
ous transmitter types.
The following modes are available:
• D2: Encrypted digital wireless channel
• DUET CH1: To receive Channel One audio from a
Duet transmitter
• DUET CH2: To receive Channel Two audio from a
Duet transmitter
• NA HYB: Legacy digital hybrid mode
• EU HYB: Used only for certain digital hybrid trans-
mitters marketed in the European Union
• NU HYB: Digital hybrid mode for current Lectroson-
ics transmitters
• JA HYB: Used only for certain digital hybrid trans-
mitters marketed in Japan
Talkback Setup
Talkback is a special function that re-directs the audio
output of the transmitter in use to a different receiver
output when talkback is selected on the transmitter. The
normal use is to provide a “comm” channel so the per-
son using the transmitter can have a direct line to the
crew or production staff. When selected, the audio will
appear at the designated talkback channel rather than
the channel used for program audio.
IR Sync & Encryption Menu
Encryption Key Management
The DSQD has three options for encryption keys:
• Standard: This is the highest level of security.
The encryption keys are unique to the DSQD and
there are only 256 key instances available to be
transferred to a transmitter. The receiver tracks the
number of keys generated and the number of times
each key is transferred. Once a Standard key has
been transferred 256 times, you will be alerted that
a new key must be created.
• Shared: There are an unlimited number of
shared keys available. Once generated by the
DSQD and transferred to a transmitter, the encryp-
tion key is available to be shared (synced) by the
transmitter with other transmitters/receivers via the
IR port.
• Universal: This is the most convenient en-
cryption option available. All encryption-capable
Lectrosonics transmitters and receivers contain
the Universal Key. The key does not have to be
generated by the DSQD. Simply set a Lectroson-
ics encryption-capable transmitter and the DSQD
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.
Encryption Keys
The DSQD generates high entropy encryption keys to
sync with encryption-capable transmitters. The user
must select a key type and create a key in the DSQD,
and then sync the key with a transmitter.

Digital Receiver
Rio Rancho, NM 13
1. Begin by selecting a key type.
2. The DSQD will then display a warning to indicate
that there is NO KEY! Select CREATE KEY to
generate a new key.
NOTE: When Universal Key type is selected, there
is no prompt to create key. See Encryption Key
Management for more information.
3. A message will pop up on the screen warning the
user that all transmitters will need a new key. Select
OK. The creation of a new key is confirmed.
4. Sync new key with transmitter (see Sync Key). The
transmitted audio will then be encrypted with the
new key.
Sync Settings
Allows sending or retrieving setup data, including
frequency, name and talkback settings, via the IR port.
There are two ways to initiate a sync.
Sync options: Choose to send frequency, send all
settings, retrieve (get) frequency or retrieve (get) all
settings from a transmitter. Use the UP and DOWN
arrows to select a function and MENU/SEL to initi-
ate sync.
Choose Transmitter: Choose one of four Rx chan-
nels by using the Channel Selector Buttons, 1, 2,
3 or 4. Hold and press the Channel Selector Button
to initiate sync.
NOTE: You must position the transmitter’s IR port
directly in front of the DSQD IR port, as closely
as possible, to guarantee a successful sync. A
message will appear on the DSQD if the sync was
successful or failed.
Sync Key
Send or retrieve (get) encryption keys.
Tools and Settings Menu
RX On/Off
Use UP and DOWN arrows to toggle power on and off
(to conserve power consumption).
TX Battery Type
Set battery type for each channel. Use MENU/SEL to
set and move cursor and the UP and DOWN arrows to
change values.

DSQD Manual
LECTROSONICS, INC.
14
TX Battery Timer Alert
Set transmitter battery timer alerts for each channel.
Choose to enable/disable alert, set time in hour and
minutes and reset timer. Use MENU/SEL to set and
move the cursor and the UP and DOWN arrows to
change values.
Front Panel Setup
Front panel settings may be customized as follows:
• LCD brightness: Use UP and DOWN arrows to
choose from 100%, 75%, 50% or 25%
• LCD Timeout: Use UP and DOWN arrows to
choose from Always On, 30 seconds, or 5 minutes
• Front Panel Lock: Use UP and DOWN arrows to
turn lock on/off. When locked, menus can still be
viewed, settings can not be changed. When locked,
if the UP and DOWN arrows are pressed to change
settings, a “FRONT PANEL LOCKED” message will
appear.
Dante Power Enable
Enable or disable Dante as needed.
Antenna Bias Power
DC bias voltage can be supplied on the antenna input
BNCs from an internal source to power remote RF
amplifiers.
NOTE: See Panels and Features for more
information on antennas/connectors.
Network Settings
Allows the user to set network settings when needed.
The following controls are available:
• DHCP Enable - this is checked if DHCP is used to
assign an IP address, Netmask and Default Gate-
way to the device. Uncheck this to use “static” IP
addressing.
• IP Address - This is in “dotted quad” format. If
DHCP is enabled, this is read only.
• Netmask - This is in “dotted quad” format. If DHCP
is enabled, this is read only.
• Default Gateway - This is in “dotted quad” format. If
DHCP is enabled, this is read only.
• TCP Port - This is the Primary TCP port number, an
integer in the range 0 - 65535. The Secondary TCP
port number is not set directly - it is always the next
number after the Primary TCP port number. The
defaults are 4080 for the Primary port and 4081 for
the Secondary port.
• MAC Address - this is the address of the device
ethernet port, assigned at the factory. It is read only.
IMPORTANT: Always consult your network
administrator before attempting to connect and
configure a processor for a network interface.
NOTE: New network settings require the unit
to reboot to take effect. Making a change and
pressing the BACK key will prompt the user to
Reboot Now, Save and Exit, or Discard and Exit.
IMPORTANT: The CAT 5 Ethernet Cable must
be installed prior to powering up the DSQD.
Edit Names
Edit channel names to easily identify talent or easily
identify multiple DSQD receivers in a rack (1 name per
frame). Use UP and DOWN Arrows to select letters and
bottom buttons to set and move cursor. Press MENU/
SEL when finished to save.

Digital Receiver
Rio Rancho, NM 15
Specifications and Features
Operating Spectrum: 470.100 - 614.375 MHz
Frequency Adjustment Range: 25 kHz steps
Sampling Size and Rate: 24-bit, 48 kHz
Digital Modulation: 8PSK with Forward Error Correction
Data Encoding: Proprietary ADPCM
Encryption: AES 256-CTR
(per FIPS 197 and FIPS 140-2)
System Latency:
Digital Output: D2 mode: 0.75 ms plus Dante
Duet mode: 1.4 ms plus Dante
Hybrid modes: 2.0 ms plus Dante
Analog Output: D2 mode: 1.25 ms
Duet mode: 1.9 ms
Hybrid modes: 2.5 ms
Audio Performance:
Frequency Response: 20 Hz - 20 KHz, +\-1 dB
THD+N: 0.05% (1 KHz @ -10 dBFS)
Dynamic Range: 108 dB A-wtd, NR=NORMAL
Adjacent Channel Isolation: >85 dB
Diversity Technique: Noiseless antenna switching
Sensitivity: -98 dBm for 10-5 BER
Antenna Inputs/Outputs: Dual BNC female, 50 ohm impedance
Audio Outputs:
XLR: Balanced, -35 to +8 dBu
Headphone: 1/4 inch phone jack
Dante: RJ45 Gigabit Ethernet
AES3: TA3M
External DC Power: 7 to 18 VDC; 2.5A (max)
Weight: 2.04 lbs.; 926 grams
Dimensions: 8.375 x 1.75 x 7.375 in.
213 x 44.5 x 187 mm.
Specifications subject to change without notice.
Restore Defaults
Returns all settings to the factory defaults. If YES is
chosen, message will appear and DSQD will reboot.
Pilot Tone Bypass
In Digital Hybrid compatibility mode ONLY, Turn Pilot
Tone Bypass on/off.
Locale
Locale optionally changes the settings on the DSQD
based on the region where the receiver is being used.
There are two options available:
NA: (default setting) represents the North American
locale and has restricted operation over the As-
tronomical Band (from 608 to 614 MHz). It allows
tuning from 470.100 up to 607.950 MHz.
EU: represents the European locale, and has unre-
stricted operation over the entire band of the device:
470.100 up to 614.375 MHz.
About
Displays general information about the DSQD,
including serial number and hardware, firmware and
FPGA versions.
Links
QR codes with links to the Lectrosonics website, the
DSQD User Manual online and YouTube video tutorials.
Wireless Designer
Download the Wireless Designer software installer from
the web sites under the SUPPORT tab at:
http://www.lectrosonics.com/US
Wireless Designer only needs to be installed the first
time the software is used. Once the software is in-
stalled, updates are available by simply clicking on an
item in the Help Menu.
NOTE: If Wireless Designer is already installed,
you must uninstall it before attempting to install a
new copy.
Firmware Update
Instructions
Firmware updates are made with a file downloaded
from the web site and the DSQD connected via USB.
The USB port on the transmitter requires a micro-B
male plug on the connecting cable. The other end of
the cable would normally be a USB A-Type male con-
nectorto fit the most common type of USB jack used on
computers.
Refer to Help in Wireless Designer software for the
procedure.

DSQD Manual
LECTROSONICS, INC.
16
(2) A500RA20
Antenna
Supplied Hardware
21926
Cable USB
DCR15/4AU
DC power supply
Unpacking the Unit
Compare the packing list enclosed with the DSQD with
the original order. Inspect all items for damage. Im-
mediately call 1-800-821-1121 to report any items that
are missing or damaged. The sooner we get notified,
the sooner we can get any needed replacement items
shipped to your location.
NOTE: Each DSQD includes hardware to mount
two (2) DSQD receivers in a rack.
Items Included in the Box:
• Instruction manual
• (DCR15/4AU) Power supply cable
• (21926) USB cable
• (35800) Hex L key wrench
• (25990) Bracket rear tie
• (25991) Bracket front tie
• (27076) Rack flange bracket
• (27082) Rack handle
• (28885) (4) SCR10 cap screw
• (28951) (2) Short spacer tubes
• (28950) (2) Long cap screw
• (35664) (4) Rubber foot large
• (35959) Hole plug
• (A500RA20) (2) Antenna
• (A500RA22) (2) Antenna
35800 Hex L
key wrench 25991 Bracket
front tie
27076 Rack
flange bracket
27082 Rack handle
(4) 35664 Rubber
foot large
35959 Hole Plug
25990 Bracket
rear tie
(4) 28885 SCR10
cap screw
28951 Short
spacer tubes
28950 Long Cap
Screws
(2) A500RA22
Antenna

Digital Receiver
Rio Rancho, NM 17
Optional Accessories
27080 Dante Port Cover
SNA600a Antenna
Adjustable elements tune center frequency from 550
to 800 MHz; 3/8” x 16 threaded socket and stud with
mounting strap included
ALP690 Antenna
Broad bandwidth for multi-channel systems; directional
pattern with 4 dBd RF gain; built-in RF amplifier;
versatile mounting options
Coaxial Antenna Cable:
ARG 15
A 15 foot antenna cable of standard RG-58 coax
cable with BNC connectors at each end.
ARG 25; ARG 50; ARG 100
Antenna cable of Belden 9913F low-loss coax cable
with BNC connectors at each end. Number speci-
fies length in feet.
RMPM2T-1
Kit for mounting one DSQD into a single rack space.

DSQD Manual
LECTROSONICS, INC.
18
4. Insert two (2) cap screws (Part #28885) through the
rack handle (Part #27082) holes and install the rack
handle onto the flange bracket through the holes in
the unit’s front panel. Firmly tighten the cap screws
using the hex key (Allen wrench) as shown.
5. If antennas will NOT be mounted on the front panel
of the receivers, install the hole cap (Part #35959)
by aligning the flat on the cap with the flat on the
opening.
Installing two DSQD
Receivers into a Single
Rack Space
The DSQD receiver occupies a half rack space, and
comes with hardware to mount two receivers into a
single rack space.
1. Remove the Trim Cap (Part #P1330) from both
sides of the front panel on both receivers.
2. Remove the breakaway tabs on both sides of the
chassis side panels. Use a flat blade screwdriver
to pry the tabs outward and snap them off of the
chassis.
3. Insert the flange bracket (Part #27076) into the
open slot in the side of the chassis cover panel.
NOTE: The retaining nuts on the panel and tie
brackets are “tensioning lock nut” types designed
to prevent the screws from coming loose due to
vibration.You will usually feel resistance as you
tighten the screws - this is normal.

Digital Receiver
Rio Rancho, NM 19
Tensioning lock
nuts on the rear
side of the bracket
6. Install one side of the front tie bracket (Part #25991)
into the side panel opening in one of the receivers.
Insert the screws, but do not tighten them com-
pletely at this point.
Slide the other receiver over the tie bracket and in-
sert the screws, but do not tighten them completely
until the rear tie bracket is installed.
Rear tie bracket
(Part #25990)
Front tie bracket
(Part #25991)
7. Remove the four cap screws from the adjacent rear
panels, and then use them to attach the rear tie
bracket. Do not tighten the screws completely.
8. After front and rear tie brackets are installed, place
the receivers on a flat surface so the that the front
panels are even with each other. Hold the receivers
in place and tighten all cap screws on the front and
rear brackets.
NOTE: If the supplied rubber feet are installed on
under side of DSQD, it will not fit in a rack unless
there is an empty space below it.

DSQD Manual
LECTROSONICS, INC.
20
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.
We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop at-
tempt anything other than the simplest repair. If the repair is more complicated than a broken wire or loose connection,
send the unit to the factory for repair and service. Don’t attempt to adjust any controls inside the units. Once set at the
factory, the various controls and trimmers do not drift with age or vibration and never require readjustment. There are
no adjustments inside that will make a malfunctioning unit start working.
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. Since it takes almost as much time and effort to determine what is wrong as it does
to make the repair, there is a charge for an exact quotation. We will be happy to quote approximate charges by phone
for out-of-warranty repairs.
Returning Units for Repair
For timely service, please follow the steps below:
A. DO NOT return equipment to the factory for repair without first contacting us by email or by phone. We need
to know the nature of the problem, the model number and the serial number of the equipment. We also need a
phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time).
B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed
your repair through our receiving and repair departments. The return authorization number must be clearly shown
on the outside of the shipping container.
C. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the
proper packing materials. UPS is usually the best way to ship the units. Heavy units should be “double-boxed” for
safe transport.
D. We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or dam-
age to equipment that you ship. Of course, we insure the equipment when we ship it back to you.
Lectrosonics USA:
Mailing address: Shipping address: Telephone:
Lectrosonics, Inc. Lectrosonics, Inc. [phone]
PO Box 15900 561 Laser Rd. NE, Suite 102 [phone] Toll-free
Rio Rancho, NM 87174 Rio Rancho, NM 87124 [phone] Fax
USA USA
Web: E-mail:
www.lectrosonics.com [e-mail]
service[email protected]
Lectrosonics Canada:
Mailing Address: Telephone: E-mail:
720 Spadina Avenue, [phone] Sales: [e-mail]
Suite 600 [phone] Toll-free Service: [email protected]
Toronto, Ontario M5S 2T9 (877-7LECTRO)
[phone] Fax