Lectrosonics SRA User manual

Quick
Start
Guide
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This guide is intended to assist with
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Lectrosonics product.
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Camera Slot
Dual UHF Receiver
SRA
SRA5P
Digital Hybrid Wireless®Technology
U.S. Patent 7,225,135
28 jun 12

LECTROSONICS, INC.2

www.lectrosonics.com 3
Digital Hybrid Wireless®
The Lectrosonics Digital Hybrid Wireless®uses innovative technology to
combine the advantages of digital audio with the advantages of analog RF
transmission, thus delivering the superior sound quality of a digital system
and the excellent range of an analog system. A proprietary algorithm encodes
the digital audio information into an analog format which can be transmitted in
a robust manner over an analog FM wireless link. The receiver employs state-
of-the-art filters, RF amplifiers, mixers and detector to capture the encoded
signal and a DSP recovers the original digital audio.
This digital/analog hybrid technique has some very beneficial properties.
Because the information being transmitted is digitally encoded, immunity to
noise is much higher than what a compandor can offer. Because the encoded
audio is sent in analog format, spectral and power efficiency and operating
range are not compromised.
Under weak RF conditions, the received signal degrades gracefully, like an
analog system, delivering as much usable audio as possible at maximum
range. Since the audio is free of compandor artifacts, pumping and breathing
problems are also greatly reduced.

LECTROSONICS, INC.4
Quick Start Summary
The following checklist includes the minimum required settings to start using
the receiver.
• Installeitherstand-aloneorcameraslotadapterkit,theantennasand
position the receiver as it will be used (see pages 6,7).
• SettheCOMPAT(compatibility)modeforthetransmitterstobeused(see
page 9).
NOTE:Whenoperatinginthe2-channelmode,alwayssetReceiver2
to a higher frequency than Receiver 1 by least 400 kHz (four standard
steps on the switches).
• Settransmittersonthematchingfrequencies(seetransmittermanual).
• Verifytransmittersaresettothesamecompatibilitymodeasthereceiver
(see transmitter manual).
• Adjusttransmitter/sinputgaintomatchvoicelevelandmicposition(see
transmitter manual).
• Adjustreceiveroutputlevelasneededforthecameraormixerinputlevel
desired (see page 9).

www.lectrosonics.com 5
Front Panel Controls and Functions
DOWN Button
MENU/SELECT
Button
POWER/BACK
Button
UP Button
Receiver 1 Receiver 2
LCD Main Window with two channels shown
Audio
Output
Audio Outputs
Inadditiontotheaudiooutputsontherearpanel,thefrontpanelofthereceiv-
er provides a second set of outputs through a 5-pin connector. For cameras
withonlyoneaudiochannelenabledintheslot,Itallowsbothaudiochannels
to be connected through externals cables.
The TA5M connector provides two balanced outputs with the following pinouts:
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
Shields CH1+ CH1– CH2+ CH2–
LCD Screen
Abacklit,graphics-typeLiquidCrystalDisplayisusedtosetupandmonitor
the receiver. The Main Window shown here is used during normal operation,
to display RF and audio levels, transmitter battery status, pilot tone status and
diversity activity for both receivers.
MENU/SEL Button
This button is used to select menu items and enter setup screens during
setup.
PWR/BACK Button
PressthePWR/BACKswitchtoturnthepoweron.Pressandholdituntilthe
displaygoesblanktoturnpoweroff.Italsofunctionsasa“back”buttonwhile
navigating the various menus and setup screens to return to the previous
screen or menu item.
Thermware“remembers”whetherthereceiverwasturnedonoroffafter
power is disconnected, and it returns to that state when power is restored.
This allows the receiver to power up and down as the camera is turned on
and off.
PressthePWR/BACK buttonfromtheMainWindowtobrieydisplaythe
external power voltage.
UP/DOWN Arrow Buttons
TheUPandDOWNarrowbuttonsareusedtoselectvariousoptionsand
adjust values in the setup screens, and provide secondary functions such as
locking out the panel to guard against accidental changes.

LECTROSONICS, INC.6
Installing Rear Panel Adapters
Installationoftherearpaneloutput/poweradaptersisthesameforallmodels.
Panels are held in
place by two phillips
head screws on the
sides of the housing.
Connections
between the panel
and main circuit
board are made via
miniature mating
connectors.
Align the mating
connectors and slide
the panel straight
into the housing until
the screw holes align
with the housing.

www.lectrosonics.com 7
Mounting and Orientation
Installationintotheslotonavideocameraplacestheantennasinanoptimal
vertical position away from the camera body.
When used with non-slot cameras, as depicted in the diagram below, one or
two receivers can be positioned in a variety of locations around the camera
bodyusingtheVelcroandSRaSLEEVEmountingoptions.
Mounting the receiver horizontally on the side of a camera can seriously
reduce the operating range of the wireless system.
For maximum operating range, the antennas should be vertical and above
the camera body. While it may be convenient, mounting the receiver horizon-
tally on the side of the camera can seriously reduce the operating range of
the wireless system.
The receiver provides stand-alone operation
with the battery sled adapter and mounting
sleeve. (optional) It can be mounted in any
position with Velcro, or in horizontal and vertical
positions using the mounting foot.

LECTROSONICS, INC.8
Main Window (LCD)
RF Level
Audio Level
Transmitter
Battery Level
Pilot Tone
Indicator
Receiver 1 Receiver 2 Diversity
Activity
NOTE:WhentheRATIODIVERSITY
mode is selected, both receivers
are combined to pick up the same
transmitter, so the Main Window will
display a single audio channel.
Receiver 2 RF
Level
Audio
Level
Transmitter Battery
Level
Receiver 1 RF
Level
The Main Window displays information concerning the condition of the Pilot
Tone, antenna phase, RF and audio signal levels and battery conditions for
both the receiver and the associated transmitter.
PressingtheSEL/SELbuttonaccessestheSELselectionsforsettingupthe
receiver and searching for clear frequency channels.

www.lectrosonics.com 9
Navigating the LCD
HYB
SETUP
(item)
180
652.800
2AF
657.500
TUNING
MENU
BACK
BACK
MENU
Receiver 1
Pilot Tone
ON\OFF
Hold MENU and
hold DOWN
Hold MENU
and hold UP
Mute Audio on
Receiver 1
Mute Audio on
Receiver 2
Press
UP/DOWN
to select
Press
UP/DOWN
to adjust
RECEIVER 1
00
00
00
RECEIVER 2
SEL
BACK
SEL
SEL
BACK
SEL
SCANNING
STARTS
SEL
SCANNING
STOPS
Press
SEL to
select
receiver
Press UP/DOWN
to scroll
frequency
Press both
UP and DOWN
to ZOOM
Press UP/DOWN
to scroll
frequency
MENU
BACK
Setup Window
Main Window
Receiver 1
Receiver 2
Press UP/DOWN to change frequency
Press UP/DOWN to change frequency
DIVMOD
RATIO
Press
UP/DOWN
to select
NOTE: Main Window will look like this
when the RATIO DIV mode is selected.
LEVEL LEVEL
00
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
DOWN
SEL
BACK
COMPAT
HYB HYB HYB
COMPAT
B3
B3
2
4A
1
5E
BACK
BACK
ZOOM GRAPHIC
BACK
SEL
BACK
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
SEL
BACK
TUNING TUNING
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
a
NOR a
NOR
Press
SEL to
select
receiver
Press
SEL to
select
receiver
SEL
BACK
SmtNR SmtNR
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
FULNOR
Press
SEL to
select
receiver FUL
NOR
LEVEL
SETUP
SCAN
SETUP
DIVMODE
SETUP
COMPAT
SETUP
SmtNR
SETUP
PHASE
SETUP
TXBAT
SETUP
MIXMODE
SETUP
TONE
SETUP
SEL
BACK
PHASE PHASE
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
Press
SEL to
select
receiver
++
SEL
BACK
TXBAT TXBAT
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
Press
SEL to
select
receiver
SEL
BACK
MIXMODE
Press
UP/DOWN
to select
SEL
BACK
TONE?
RECEIVER 1 RECEIVER 2
Press
UP/DOWN
to select
Press
SEL to
select
receiver
00+05
Tone will be enabled
when level is set with
the UP/DOWN buttons
TONE?
00+05
LVL 1K
RECEIVER 1
00+05
BACK
UP
UP
UP
UP
UP
UP
UP
UP
UP
DOWN
RATIO 80
652.800
When the receivers are combined in the
RATIO DIVERSITY mode, the frequency
screen will look like this.
MIXBOTH
DOWN
MIXTRIM
SETUP
SEL
BACK
MIXTRIM
UP
00+05
MIXTRIM
Press
SEL to
select
receiver
00 +05
Press
UP/DOWN
to select
Receiver 2
Pilot Tone
ON/OFF
Hold MENU and
press UP
momentarily
Hold MENU and
press DOWN
momentarily
9V 9V 9V
9V
IMPORTANT:
FREQ.
WARNING
Performance will be degraded if
Receiver 1 is set 4.2 to 4.8 MHz higher
than Receiver 2. The LCD will also flash
this message periodically.
Receiver 2 should always be set to a higher frequency
than Receiver 1 by at least 400 kHz (four standard steps).
NOTE:Pressthe
BACKbuttonfrom
the Main Window
tobrieydisplay
the external
power supply
voltage.
NOTE:Toresetthetimer,setthe
TXBAT mode to anything other
than9VTorAAT,thenbackto
the desired mode.
NOTE:Thissettingdoesnot
appearwhentheMIXMODE
issettoDIRECT

LECTROSONICS, INC.10