The Lectrosonics Digital Hybrid Wireless™ uses innovative technology to combine the new advantages of digital
audio with the classic 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 the latest filters, RF
amplifiers, mixers and detector to capture the encoded
signal and a DSP recovers the original digital audio.
TABLE OF CONTENTS
GENERAL TECHNICAL DESCRIPTION ...................................................................................................... 5
RF FREQUENCY TRACKING FRONT-END AND MIXER ............................................................................................ 5
MICROCONTROLLER, PLL AND VCO CIRCUITS ....................................................................................................... 5
IF AMPLIFIERS AND SAW FILTERS ............................................................................................................................. 5
DIGITAL PULSE COUNTING DETECTOR .................................................................................................................... 6
DSP-BASED PILOT TONE ............................................................................................................................................. 6
TEST TONE .................................................................................................................................................................... 7
POWER SUPPLY ........................................................................................................................................................... 7
POWER UP SEQUENCE ............................................................................................................................................... 7
POWER OFF .................................................................................................................................................................. 7
FRONT PANEL CONTROLS AND FUNCTIONS ......................................................................................... 8
SEL Up/Down ................................................................................................................................................................. 8
MENU ............................................................................................................................................................................. 8
REAR PANEL FEATURES ............................................................................................................................ 8
XLR AUDIO OUTPUT JACK .......................................................................................................................................... 8
POWER ON/OFF ........................................................................................................................................................... 8
POWER INPUT JACK .................................................................................................................................................... 8
MAIN WINDOW (LCD) ................................................................................................................................... 9
PILOT TONE INDICTOR ........................................................................................................................................... 9
FREQUENCY WINDOW .............................................................................................................................................. 10
MENU SELECTIONS FROM MAIN WINDOW ............................................................................................ 10
TONE ....................................................................................................................................................................... 11
LOCKING AND UNLOCKING THE UCR511 FRONT PANEL CONTROLS ................................................................ 16
TO REPLACE THE BATTERIES ................................................................................................................. 17
Frequency Coordination ............................................................................................................................ 18
Compatible Frequency Chart ........................................................................................................................................ 18
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 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.
Because the audio is not companded, no compandor
artifacts are present at any audio or RF signal level. This
greatly reduces the pumping and breathing problems
commonly found in wireless systems with compandors.
Using the Scan Function .............................................................................................................................................. 20
INITIAL POWER ON .................................................................................................................................................... 22
PILOT TONE SQUELCH .............................................................................................................................................. 22
ANTENNAS AND RF SIGNAL STRENGTH ................................................................................................................ 22
AUDIO SIGNAL QUALITY ............................................................................................................................................ 23
SPECIFICATIONS AND FEATURES .......................................................................................................... 24
SERVICE AND REPAIR ............................................................................................................................... 25
LIMITED ONE YEAR WARRANTY .............................................................................................................. 28
4
UHF Wireless Digital HybridTM Receiver
GENERAL TECHNICAL DESCRIPTION
The UCR511 is a portable, high performance, tripleconversion, frequency synthesized, UHF receiver fully
compatible with all Lectrosonics 500 series transmitters
(and some other transmitter types – see Compatibility
Modes for details.) The RF performance is extremely
stable over a very wide temperature range, making the
UCR511 perfectly suited to the rough environmental
conditions found in the field. The proprietary audio
processing includes a digital signal processor for very
low distortion and a superior signal to noise ratio.
The UCR511 features a menu-driven LCD graphic
display and three control buttons to conveniently view
and alter user settings. The main window, for example,
displays the pilot tone indicator, antenna diversity phase,
RF level, audio level, receiver battery status and transmitter battery status. It is also possible to bypass the
pilot tone/squelch from the main display window. Other
display windows show operating frequency, audio output
level, battery voltage and test tone status. The frequency scan mode provides a spectrum analyzer for a
graphical means of observing all signals “on the air”
within the frequency range of the receiver in order to find
operating frequencies that are free of interference.
COMPATIBILITY MODES
The UCR511 receiver was designed to operate with
Lectrosonics 500 Series transmitters and will yield the
best performance when doing so. However, due to the
flexibility of digital signal processing, the UCR511 is also
able to operate with Lectrosonics 300 Series, Lectrosonics 100 Series, and certain non-Lectrosonics transmitters
in special compatibility modes.
DIVERSITY RECEPTION
The UCR511 technology with SMART Diversity™ minimizes dropouts in situations where multi-path reflections
can cause serious problems. The phase diversity
network and PIN diode RF switches are controlled by the
microprocessor using a sophisticated algorithm to use
both antennas simultaneously. This design keeps the
receiver compact enough for camera mounting or
shoulder bag applications, yet provides effective diversity
reception.
RF FREQUENCY TRACKING FRONT-END
AND MIXER
The receiver is frequency agile and can be set to operate
on any one of 256 frequencies within its tuning range. To
significantly reduce unwanted interference and intermodulation problems, the UCR511 has a frequency
selective front-end section that tracks and tunes to the
desired signal frequency and rejects or “tunes out”
unwanted interfering signals. The design consists of four
varactor tuned ceramic transmission line resonators
controlled by the microprocessor to provide excellent
selectivity. The low noise high current RF amplifier was
designed with feedback regulation for stability and
precise gain in order to handle stronger RF signals
without output overload. The first mixer is of new GaAs
technology that has a very high third order intercept
point. This produces a robust front-end that is as selective as fixed single frequency designs and is suitable for
use in close proximity to other receivers and transmitters
commonly used in field production “bag” systems.
MICROCONTROLLER, PLL AND VCO
CIRCUITS
The 8-bit microprocessor is truly the “heart” of the
UCR511 receiver. It monitors user command inputs from
the front panel control buttons and numerous other
internal signals such as RF level, audio levels, pilot tone
levels and external/internal power voltages. Outputs
from the microcontroller drive the LCD display and
backlight, control the squelch and audio output attenuator, and operate the front-end tuning, the PLL/VCO
circuits and the antenna phase switch. The UCR511
design and the advanced technology of the microprocessor control arguably set a new standard in wireless
microphone development.
IF AMPLIFIERS AND SAW FILTERS
The first IF low noise amplifier is controlled with feedback regulation and drives the first of two quartz SAW
RF MODULE
ANTENNA
COMBINING
uP uP
LCD
Display
Panel
Smart Diversity
FILTER
PLL
SYNTHESIZER
CERAMIC
HI-LEVEL
MIXER
SAW
FILTER
244 MHz
IF AMP
PILOT TONE
DETECT
Attenuation
FILTER
MIXER
10.7 MHZ
SAW
FILTER
244 MHz
AMP
LC
Filter
1st
FILTER
VCO
2
E PROM
uP
FILTER
IF AMP
2nd
VCO
FILTER
Rio Rancho, NM – USA
XTAL
CONTROLLED
3rd
OSCILLATOR
2ND
3RD MIXER
AND
IF AMP
COUNTING
DETECTOR
50KHz
LP FILTER
A-D
CONVERTER
DIGITAL SIGNAL
PROCESSOR
D-A
CONVERTER
UCR511
BLOCK DIAGRAM
Output
Level
Adjust
AUDIO
AMP
Digital
Attenuator
XLR
OUT
50
5K
1 (COMMON)
5K
50
2 (HI)
3 (LO)
5
UCR511
(Surface Acoustical Wave) filters. The 244 MHz SAW
filters combine sharp tuning, constant group delay, wide
bandwidth and excellent temperature stability, far superior to conventional LC filters. The 244 MHz first IF
signal is converted down to 10.7 MHz, filtered through
two ceramic filters for sharp selectivity, then converted to
300 kHz.
DIGITAL PULSE COUNTING DETECTOR
The UCR511 receiver uses an elegantly simple, yet
highly effective digital pulse detector to demodulate the
FM signal, rather than a conventional quadrature detector. This unusual design eliminates thermal drift, improves AM rejection, and provides very low audio
distortion.
DSP-BASED PILOT TONE
The above description applies only in 500 Series mode. In 300
Series mode, only one pilot tone frequency is used on all channels,
emulating the original crystal-based system. In other compatibility
modes, no pilot tone is used.
The 500 Series system design uses a DSP generated
ultrasonic pilot tone to control the receiver audio muting
(squelch). Brief delays (preset into the UCR511 circuitry) eliminate thumps, pops or other transients that
can occur when thewhen the associated 500 Series
transmitter is turned on or off. The pilot tone frequency
is different for each of the 256 frequencies in the tuning
range of a system (frequency block.) This eliminates
squelch problems in multichannel systems where a pilot
tone signal can appear in the wrong receiver via intermodulation products. The DSP generated pilot tone also
eliminates the need for fragile crystals, allowing the
receiver to survive shocks and mishandling much better
than older analog-based pilot tone systems.
SMART SQUELCH
The UCR511 employs a sophisticated squelching system
in an attempt to deliver the cleanest possible audio
during marginal conditions of reception. Any squelching
system faces inevitable trade-offs: squelch too much and
valuable audio information may be lost, squelch too little
and excessive noise may be heard; respond too rapidly
and the audio sounds “choppy,” respond too sluggishly
and syllables or entire words can be cut off.
The UCR511 combines several techniques to achieve an
optimal balance, removing distracting noise, without the
squelching action itself becoming a distraction. One of
these techniques involves waiting for a word or syllable
to complete before squelching. Another incorporates
recent squelching history and recent signal strength,
adjusting squelching behavior dynamically for the most
serviceable result under variable conditions. Using these
Note
™
and other techniques, the UCR511 can deliver acceptable audio quality from otherwise unusable signals.
In the Pilot Tone Bypass mode, the squelch system is
disabled. Received audio remains unmuted at all times
with this setting. (See Front Panel Controls and Functions.)
SMART NOISE REDUCTION (SmartNR™)
The SmartNR setting is user selectable only in 500 Series mode. In
other modes, noise reduction is applied in such a way as to emulate
the original analog system as accurately as possible and is not user
The UCR511 has been meticulously designed using the
best available low noise components and techniques.
Nonetheless, the wide dynamic range of digital hybrid
technology, combined with flat response to 20 kHz,
makes it possible to hear the -120 dBV noise floor in the
mic preamp, or the (usually) greater noise from the
microphone itself. (To put this in perspective, the noise
generated by the recommended 4 k Ohm bias resistor of
many electret lavaliere mics is –119 dBV and the noise
level of the microphone’s electronics is much higher.) In
order to reduce this noise and thus increase the effective
dynamic range of the system, the UCR511 is equipped
with a Smart Noise Reduction algorithm, which removes
hiss without sacrificing high frequency response.
The Smart Noise Reduction algorithm works by attenuating only those portions of the audio signal that fit a
statistical profile for randomness or “electronic hiss”.
Because it isn’t simply the same sophisticated variable
low pass filter as in Lectrosonics’s 300 Series designs,
much greater transparency is thus obtained. Desired
high frequency signals having some coherence such as
speech sibilance and tones are not affected.
The Smart Noise Reduction algorithm has three modes,
selectable from a user setup screen - OFF/NORMAL/
FULL.
OFF, no noise reduction is performed and
complete transparency is preserved. All signals
presented to the transmitter’s analog front end,
including any faint microphone hiss, will be
faithfully reproduced at the receiver.
NORMAL, the factory default setting, enough
noise reduction is applied to remove most of the
hiss from the mic preamp and some of the hiss
from lavaliere microphones. The noise reduction
benefit is dramatic in this position, yet the degree
of transparency maintained is exceptional.
FULL, enough noise reduction is applied to
remove most of the hiss from nearly any signal
source of reasonable quality, assuming levels are
set properly at the transmitter. This additional
noise reduction comes at the cost of some
transparency for low-level room noise, yet the
Note
adjustable.
6
UHF Wireless Digital HybridTM Receiver
algorithm remains undetectable under most
circumstances.
RF-CONTROLLED DIGITAL NOISE FILTER
In addition to SmartNRTM, the UCR511 contains an RF
sensitive variable frequency filter, which reduces high
frequency response under extremely weak RF conditions. This filter does nothing until the RF signal strength
drops below 3 uV at which point it begins to roll off high
frequencies. Usable audio remains unaffected, but
noise-ups or “hits” occurring near the fringe of reception
sound much less harsh.
OUTPUT LEVEL ADJUST
One of several setup screens is provided for adjusting
the audio output level in 1 dB steps from -50 to +5 dBu
using the SEL Up and Down buttons on the front panel.
TEST TONE
To assist in matching the audio levels of equipment
connected to the UCR511, a 1 kHz audio test tone,
adjustable from -50 to +5 dBu in 1 dB increments, is
available at the XLR connector. This tone is available
through the TONE display window.
BATTERIES
The UCR511 operates on two 9 V alkaline or lithium
batteries. Access to the battery compartment is gained
by lifting one end and turning the rear panel door.
Do not use an alkaline and a lithium in the same unit. Standard or
“heavy duty” batteries are not recommended.
Note
POWER SUPPLY
The UCR511 may be operated from an external (Negative Ground) DC power source (see Specifications and
Features section for allowed voltages.) The receiver has
a built-in Poly-Fuse to protect the unit. This fuse resets if
the power supply is disconnected for about 15 seconds.
The power section also has protection circuits that
prevent damage to the receiver if a positive ground
power source is applied.
LCD DISPLAY
The display has four primary windows: Main, Setup,
Battery Level, Frequency. Pressing the MENU button
rotates through each of these windows.
If the battery gets low on either transmitter or receiver, a
message will interrupt the display every few seconds and
flash a low battery warning.
After power is turned off and back on again, the unit
defaults to the Main Window and to the most recent
frequency, audio level, transmitter battery type and other
user settings. These settings are retained even if the
batteries are removed. After five minutes of no key
activity, the LCD backlight goes off and the display
reverts back to the Main Window.
POWER UP SEQUENCE
The power up sequence consists of four messages that
appear automatically over a period of a few seconds
after the power is switched on.
1) UCR511
BLK xx (xx is the frequency block number)
2) VERSION
3) COMPAT mode (mode is one of the following:
500 - native 500 Series mode
100 - Lectrosonics 100 Series compatibility
300 - Lectrosonics 300 Series compatibility
MODE 3 - compatible with certain non-
IFB - compatible with all Lectrosonics IFB
4) TUNING mode (mode is one of the following:
NORMAL - tune in single channel increments
GRP x - tune in precoordinated intermod-free
frequencies (x is A, B, C or D))
The Main Window will appears after these introductory
messages are displayed.
The UCR511 is fully operational during the power up
sequence and will immediately respond to button pushes
made before the automatic sequence is completed. If a
valid transmitter signal is already present when the
receiver is turned on, the audio output will typically be
engaged somewhere in the middle of the power-up
sequence, following a brief delay to allow the audio
circuits to stabilize.
R.R/A.A (R.R is the RF board firmware
version, A.A is the audio board firmware
version)
Lectrosonics transmitters)
transmitters.
POWER OFF
When the Front Panel Power ON/OFF switch is moved to
the OFF position the audio output is instantly muted
(squelched) and the message “POWERING OFF...” is
displayed briefly before switching off.
Rio Rancho, NM – USA
7
UCR511
Pilot
Div RF Aud Rx Tx
BAT
-40 -20 0 dB
1000
100
10
1
uV
OFF
ON
MENU
SEL
1 2
LECTRO
UCR 5 1 1
FRONT PANEL CONTROLS AND FUNCTIONS
SEL Up
LCD
MENU
SEL Down
SEL Up/Down
The SEL Up and Down pushbutton switches are used in
conjunction with the MENU pushbutton to move through
the submenus and set operating conditions and parameters. (See also Menu Selections From Main Window.)
MENU
The MENU pushbutton is used to rotate through the
various set up menus of the UCR511.(See also Menu
Selections From Main Window.)
REAR PANEL FEATURES
BATTERY DOOR
To open lift
this edge and
turn door
AUDIO
OUT
1 2
Power OFF/ON
POWER ON/OFF
The Power ON/OFF switch is used to apply or remove
power from the UCR511.
LCD
The LCD is used to provide feedback to the user on
menu selections and system operating conditions.
Audio Output XLR Jack
10-18
VDC
3
Power Input Connector
XLR AUDIO OUTPUT JACK
This is a standard XLR configuration with pin 2 “positive”
with reference to hand-held and plug-on transmitters.
With lavalier microphones and belt-pack transmitters,
however, phase will vary with different types of microphones (2-wire vs. 3-wire for example). The audio output
is balanced but not floating, so an unbalanced signal is
available using pin 1 as ground and pin 2 as signal,
UCR511 Simplified Audio Output
Output
Level
Adjust
AUDIO
AMP
8
25V
Non-Polar
Caps
5K
5K
XLR
OUT
50
1 (COMMON)
50
2 (HI)
3 (LO)
leaving pin 3 open. (See Installation and Operating
Instructions.)
POWER INPUT JACK
The power input jack can accept 10-18 VDC - the center
pin is positive and sleeve is ground. The input is diode
protected to prevent damage if the power is applied with
reversed polarity, but the unit will not work until the
condition is fixed. Strain relief to avoid accidental
disconnection can be provided with the included small
UHF Wireless Digital HybridTM Receiver
Pilot
Div RF Aud Rx Tx
BAT
-40 -20 0 dB
1000
100
10
1
uV
OFF
ON
MENU
SEL
1 2
LECTRO
UCR 5 1 1
MAIN WINDOW (LCD)
RF levels - reference for RF
level screen icon
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. It is also the access
Icon Description
PILOT TONE INDICTOR
A steady “P” icon will be displayed when a pilot tone from the transmitter is present. (The “P” will appear
only in those compatibility modes which use pilot tone: 300 Series and the native 500 Series mode.)
The icon will flash if no pilot tone is detected and will change to a small “b” if the pilot tone has been
bypassed. To bypass the pilot tone, hold MENU and press the UP button. Hold MENU and press UP
again to restore normal pilot tone squelch. Bypassing the pilot tone also disables the squelch, so the
“pilot tone bypass” function has an effect even in those compatibility modes that do not use pilot tone.
Audio Levels - reference levels for audio signal
modulation from transmitter
LCD
portal to menu selections for setting up the receiver and
searching for clear frequency channels. (See Menu
Selections from Main Window and Frequency Scan
Mode.)
ANTENNA PHASE INDICATOR
This icon shows antenna phase switching activity. As the antenna phase is switched, the symbol will flip
vertically.
RF LEVEL
This icon changes in size vertically to indicate the strength of the incoming RF signal. RF levels are
engraved from 1uV to 1000uV on the bezel to the left of the LCD.
AUDIO LEVELS
This icon changes in size horizontally to indicate the audio level (modulation) of the signal received from
the transmitter. The icon display will change to a solid rectangular block when the audio signal is being
limited in the transmitter. Levels in dB are engraved into the bezel above the LCD.
BATTERY LEVELS
The icon above the Rx symbol indicates the receiver battery condition and will flash when approximately
one hour of operating time is remaining. When external power is being used, the Rx battery icon
changes to look like a power plug. The area above the Tx symbol features either a transmitter battery
status icon or the transmitter battery timer, depending on the TXBAT setting. The transmitter battery
status icon is available only in compatibility modes supporting battery telemetry (500 and 300 Series). In
such cases, the transmitter battery status icon appears 5 to 10 seconds after the transmitter signal is
acquired. If selected in the TXBAT setup screen, the transmitter battery timer is available in any compatibility mode. It accumulates hours and minutes that the communications link is active, retaining the
timing even when the receiver is off. To reset the battery timer, hold MENU and DOWN together for one
second.
Rio Rancho, NM – USA
9
UCR511
MENU SELECTIONS FROM MAIN WINDOW
SETUP
Press
UP
Press
UP
TX BAT
Press
UP
Press
UP
Press
UP
TUNING
Press
UP
COMPAT
LEVEL
SETUP
TONE
SETUP
SETUP
PHASE
SETUP
SmtNR
SETUP
SETUP
P
r
e
s
s
U
P
Press
MENU
Press
MENU
Press MENU
Press MENU
Press MENU
Press MENU
Press MENU
Level
LEVEL
00 dBu
(Press UP / DOWN to adjust)
Audio Test Tone
TONE?
00 dBu
(Press UP / DOWN to select)
(Press UP / DOWN to select)
(Press UP / DOWN to select)
(Press UP / DOWN to select)
(Press UP / DOWN to select)
Press UP
Tx Battery Type
TXBAT
9V ALK
Output Phase
PHASE
INVERT
Noise Reduction
SmtNR
NORMAL
Tuning Mode
TUNING
NORMAL
Compatibility Mode
COMPAT
500
Pilot Off/On
Press UP
Press MENU
Audio Test Tone
LVL 1K
00 dBu
(Press UP / DOWN to adjust)
Press MENU
Press MENU
Press MENU
Press MENU
Press MENU
Press MENU
Hold MENU & press UP
Setup Window
SETUP
EXIT
Main Window
U
N
E
M
s
s
e
r
P
P
r
e
s
s
M
E
N
U
TX 7.2V
RX 8.2V
Battery Level
Window
P
r
e
s
M
s
s
e
r
P
Press All Buttons
Press & Hold MENU
s
M
E
N
U
U
N
E
Frequency
TV41 AE
631.800
Window
Frequency
Scan Mode
SELECT
Lock/Unlock
From the Main Window, you can navigate to the Frequency, Battery Level and Setup windows in a circular
sequence by pressing the MENU button.
FREQUENCY WINDOW
TVxx - which television broadcast
channel this frequency falls within.
Transmitter switch settings (AE in
the illustration) - these are the
correct switch settings for the frequency switches on
your transmitter - see your transmitter instructions.
Frequency - Press the SEL Up or Down buttons to
change the frequency of the receiver.
Note
Be certain to change the transmitter frequency select switches to
match the settings shown in the upper right hand corner of the
Frequency Window display.
When the TUNING mode is set to NORMAL, the SEL Up
or Down buttons tune in single channel increments. In
the group tuning modes, the UP and DOWN buttons
move among the selected intermod-free frequencies.
10
TV41 AE
631.800
Tuning short-cuts: In NORMAL tuning mode, MENU+Up
and MENU+Down tune in 16 channel increments for
faster tuning. In the group tuning modes, MENU+Up
jumps to the first frequency in the group and
MENU+Down jumps to the last one in the group.
BATTERY LEVEL WINDOW
This window shows the transmitter (TX)
and receiver (RX) battery voltage.
These levels will flash when the
voltages drop below suggested optimum working levels. Typically, there
TX 7.2V
RX 8.2V
will be about one hour operating time remaining after the
indicators begin to flash. The RX voltage changes to EX
when operating on external power and displays the
external power source voltage. (
guarantee 0.1 Volt accuracy.
)
Disclaimer: We don’t
SETUP WINDOW
In the SETUP window, the SEL Up
or Down buttons scroll through a list
of eight possible destinations: EXIT,
SETUP
EXIT
UHF Wireless Digital HybridTM Receiver
LEVEL, TONE, TXBAT, PHASE, SmtNR (in 500 Series
mode only), TUNING and COMPAT. Each of these
destinations allows a variety of settings to customize the
receiver operating parameters. Press MENU at the
screen shown here to return to the main window.
LEVEL
The LEVEL setup screen shows the
audio output level of the receiver in
dBu. Use the SEL Up or Down
buttons to change the level. Range
is from -50 to +5 dBu in 1 dB steps.
Press MENU to leave this screen.
LEVEL
-50 dBu
TONE
The TONE setup screen enables an
audio test tone at the receiver output
for precise level matching with other
equipment. The first screen prompts
you to press the UP button to enable
the tone at the receiver output jack.
The next screen that appears allows
the level to be adjusted in 1dB steps
using the SEL Up or Down buttons.
When the audio test tone is enabled, the received audio
is muted and an internally generated 1 kHz test tone is
routed to the XLR connector. Since there is only one
audio output level setting for both received audio and
tone, the level set here will be retained in the receive
mode (it will supersede the setting made in the LEVEL
setup screen). The test tone has 1% distortion and is
intended for confirmation of output levels only. To exit
the test tone screen and stop the tone press the MENU
button.
TONE?
00 dBu
LVL 1K
00 dBu
TXBAT
The TXBAT setup screen allows you
to select the exact battery being
used in the transmitter to provide
more accurate battery level monitoring. Four different types of batteries are commonly used
in Lectrosonics transmitters: 9 Volt alkaline, 9 Volt lithium,
AA alkaline, and AA lithium. Correctly set, this will
ensure that adequate warning will be provided in advance of battery failure. Press MENU to leave this
screen.
In native 500 Series mode as well as in the 300 Series
compatibility mode, the TXBAT menu offers six choices:
9V ALK - Transmitter uses a 9V alkaline battery. Monitor
voltage with battery icon in main window.
9V LTH - Transmitter uses a 9V lithium battery. Monitor
voltage with battery icon in main window.
9V TIM - Transmitter uses a 9V battery. Display its
voltage normally in the battery level window but monitor
its status with the battery timer in the main window.
AA ALK - Transmitter uses a AA alkaline battery. Monitor
voltage with battery icon in main window.
TXBAT
9V ALK
AA LTH - Transmitter uses a AA lithium battery. Monitor
voltage with battery icon in main window.
AA TIM - Transmitter uses an AA battery. Display its
voltage normally in the battery level window but monitor
its status with the battery timer in the main window.
The 9V TIM and AA TIM settings are most useful for
NiMH batteries as they do not exhibit reliably identifiable
voltage drops as they discharge.
In compatibility modes other than 500 Series and 300
Series, no battery telemetry information is available so
the TXBAT setup screen offers only two choices:
NOTIMER - Display no transmitter battery status in the
main window.
TIMER - Monitor the transmitter battery status with the
battery timer in the main window. To reset the timer, hold
MENU and DOWN for one second.
PHASE
The output PHASE setup screen
allows the audio output phase to be
inverted. The SEL Up or Down
buttons can be used to toggle
between normal and inverted phase.
Press MENU to leave this screen.
PHASE
INVERT
SmtNR
The SmtNR setup screen (available
in 500 Series compatibility mode
only) places the Smart Noise Reduction algorithm in one of three modes.
In the OFF position, no noise reduction is applied, for complete transparency. In the NORMAL position
(factory default setting), a moderate
amount of noise reduction is applied,
dramatically reducing hiss with
virtually no discernible side effects.
In the FULL position, the transparency is superior to the Lectrosonics
noise reduction system used for
many years in the 300 series systems. Try switching between the
three modes to decide what setting is correct for your
application. Refer to the Smart Noise Reduction section
in the GENERAL TECHNICAL DESCRIPTION chapter
for more detailed information about this feature.
SmtNR
NORMAL
SmtNR
FULL
SmtNR
OFF
TUNING
The Tuning Setup Screen allows
selection of one of four factory set
frequency groups (Groups A through
D), two user programmable frequency groups (Groups U and V) or
the choice to not use groups at all.
In the four factory set frequency groups, eight frequencies per group are preselected. These frequencies are
chosen to be free of intermodulation products. (See
Frequency Coordination.)
TUNING
NORMAL
Rio Rancho, NM – USA
11
UCR511
In the two user programmable frequency groups, up to
16 frequencies can be programmed per group.
The Tuning Setup Screen only selects the tuning mode (NORMAL or
Group Tuning) and not the operating frequency. Actual operating
frequencies are chosen through the Frequency Window.
Note
If NORMAL tuning mode is selected, the SEL Up and
Down buttons select the operating frequency in single
channel (100 kHz) increments and the MENU+Up and
MENU+Down shortcuts tune in 16 channel (1.6 MHz)
increments.
There are two group tuning modes: factory present
groups (Grp A through D) and user programmable
frequency groups (Grp U and V).
In these modes, the SEL Up and Down buttons navigate
among the selected intermod-free frequencies in the
group and the MENU+Up and MENU+Down shortcuts
jump to the first and last frequencies in the group.
Also, a lower case a, b, c, d, u or v will be displayed to
the immediate left of the transmitter switch settings in the
Frequency Window. The letter identifies the selected
factory or user tuning group.
Any time the currently tuned frequency is not in the
current tuning group, the group tuning mode indicator
will blink. Any time the currently tuned frequency is in
the current turning group, the group tuning mode indicator will give a steady (non-blinking) indication.
If a factory tuning group has been selected, pressing
either the SEL Up or Down button will select the nearest
factory selected frequency in that group above or below
the current frequency.
User Programmable Frequency Group Behavior
The user programmable frequency groups work very
similar to the factory groups with a few exceptions. The
most obvious difference is the ability to add or remove
frequencies from the group. Less obvious is the behavior of a user programmable frequency group with only
one, or no entries.
A user programmable frequency group with only one
entry will only display that one frequency regardless of
how many times the SEL Up or Down buttons are
pressed (providing the MENU button is not pressed at
the same time).
A user programmable frequency group with no entries
reverts to non-group-mode behavior, i.e., access is
allowed to all 256 available frequencies in the selected
receiver module's frequency block. However, once a
frequency has been added to the tuning group, this
behavior changes to group-mode behavior where the
MENU button must be pressed and held while either the
SEL Up or Down buttons are pressed to access frequencies that are not part of the current tuning group.
Adding/Deleting User Programmable Frequency
Group Entries
Each User Programmable Frequency Group (“u” or “v”) has
separate contents. It is suggested to review the section titled
Frequency Coordination prior to adding frequencies inorder to
minimize potential intermodulation problems.
Note
1. Start from the Frequency Window and verify
that a lower case “u” or “v” is present next to
the transmitter switch settings.
2. While pressing and holding the MENU button
press either the SEL Up or Down button to
move to one of the 256 available frequencies
in the block. Whenever the selection comes to
rest on a frequency that is in the current
group, the group tuning mode indicator (letter
"u" or "v") will give a steady indication. On
frequencies that are not in the group, the
indicator will blink.
3. To add or remove the displayed frequency
from the group, hold down the MENU button
while pressing and holding the SEL Up button.
The group tuning mode indicator will stop
blinking to show that the frequency has been
added to the group, or begin blinking to
indicate that the frequency has been removed
from the group.T
COMPAT
The COMPAT setup screen selects
the type of transmitter used with the
UCR511. The available modes are:
500 - Lectrosonics 500 Series.
This is the default setting
and should be used if your transmitter supports
it. This mode offers the best audio quality.
100 - Lectrosonics 110 Series compatibility mode.
300 - Lectrosonics 300 Series compatibility mode.
MODE 3 - Compatible with certain non-Lectrosonics
transmitters.
IFB - Compatible with Lectrosonics IFB transmitters.
COMPAT
500
12
FREQUENCY SCAN MODE
Press All 3 Buttons
Fine View
B8
P
e
r
M
s
s
Scan
u
n
e
Press Menu
UHF Wireless Digital HybridTM Receiver
B8
P
r
e
s
s
A
n
y
B
u
t
t
o
n
View
B8
To use the integrated scanning function, press both UP/
DOWN buttons and the MENU button at the same time.
The display will switch to the SCAN WINDOW and start
scanning immediately. Data gathered during a scan is
stored until it is purposely erased or the power is turned
off. Previous data will remain and subsequent scans can
be made to search for additional signals or to accumulate higher peaks.
Scan & VIEW WINDOW Elements
Cursor - shows relative
position of the scanner
within the 25Mhz band of
the receiver.
Switch Settings - shows
the transmitter switch
settings - will change
rapidly while the unit is
scanning.
B8
Scan level indications
showing relative level of RF
activity across the 25MHz
bandwidth of the receiver.
-
To stop scanning, press the MENU button once. The
scanning will stop immediately, and the display will
switch to the VIEW window. In this window, each vertical
band of the display represents eight frequencies (800
kHz). Pressing the SEL Up or Down buttons will scroll
the cursor coarsely across the tuning range. The transmitter switch settings matching the frequency indicated
by the cursor are shown in the upper right corner of the
screen.
Spectrum data is collected only when the receiver is
scanning. Successive scanning with repeated passes
through the tuning range will accumulate the highest
peaks encountered to aid in finding clear frequencies. To
clear the scan memory without leaving scan mode, turn
the power switch off and back on quickly.
Pressing the MENU button once will shift the display to
the FINE VIEW window which will show an expanded
portion of the spectrum around the cursor.
In the FINE VIEW window, each vertical band represents
one frequency the UCR511 is capable of tuning. The
upper right corner shows the transmitter switch settings
Remaining unscanned
part of band.
for the frequency indicated by the cursor. In this screen,
a vertical center bar is the cursor. Underneath the switch
settings are two arrows to remind you that this is a
partial picture of the spectrum and that you can scroll left
or right to view the entire spectrum of the receiver by
pressing the SEL Up or Down buttons.
Fine VIEW WINDOW Elements
Transmitter
Cursor (center bar)
Switch Settings
B8
RF Level indicators
Pressing the SEL Up button will make the display scroll
left, showing higher frequencies. Pressing the SEL
Down button will make the display scroll right, showing
lower frequencies. The cursor remains in place while the
display scrolls left or right
In addition to assessing the congestion within the RF
tuning range of the receiver, the scanning mode is also
used to find a clear operating frequency. Scroll through
the screen and find a frequency where no RF signals are
present (or in the worst case, only very weak RF signals). With the cursor on this frequency, press the SEL
Up, SEL Down and MENU buttons at the same time to
leave the scan mode.
When leaving the scan mode, you are given the option of
using the frequency the unit was on before entering the
scan mode, or using the frequency just selected in the
scan mode. The display shows USE OLD and USE
NEW to prompt you to make a frequency selection. To
accept the new frequency just selected in the scan
mode, press the DOWN button for USE NEW. To return
to the frequency you were using before entering the scan
mode, press the UP button for USE OLD. (The MENU
button defaults to USE OLD).
Once you leave the scan mode, the Frequency Window
will be displayed. Set your transmitter switches to the
same settings as shown on the display and your system
will be ready for operation.
SCROLL reminders
Rio Rancho, NM – USA
13
UCR511
ANTENNA USE AND PLACEMENT
The receiver is supplied with two straight BNC antennas.
In some circumstances remote antennas such as the
SNA600 or ALP700 may be useful for improving reception. Position remote antennas at least three or four feet
apart and so that they are also not within three or four
feet of large metal surfaces. If this is not possible, try to
position the antennas so that they are as far away from
the metal surface as is practical. It is also good to
position the receiver so that there is a direct “line of
sight” between the transmitter and the receiver antenna.
In situations where the operating range is less than
about 100 feet, the antenna positioning is much less
critical. The antennas can also be configured with one
whip mounted directly onto the panel of the receiver, and
the other one mounted remotely.
Be careful about the length of cabling from antenna to receiver.
Long cable runs can have serious signal loss. Lectrosonics has in-
line RF amplifiers suitable for compensating for long cable runs.
Contact your dealer or the factory for more information.
Note
A wireless transmitter sends a radio signal out in all
directions. This signal will often bounce off nearby walls,
ceilings, etc. and a strong reflection can arrive at the
receiver antenna along with the direct signal. If the
direct and reflected signals are out of phase with each
other a cancellation may occur. The result would be a
“dropout.” A dropout sounds like either audible noise
(hiss), or in severe cases, may result in a complete loss
of the carrier and the sound when the transmitter is
positioned in certain locations. A UHF dropout normally
sounds like a very brief “hiss” or a “swishing” sound.
Moving the transmitter (or the receiver’s antennas) even
a few inches will change the sound of the dropout, or
eliminate it. A dropout situation may be either better or
worse as the crowd fills and/or leaves the room, or when
the transmitter or receiver is operated in a different
location.
The receiver offers a sophisticated diversity design which
overcomes dropout problems in almost any situation. In
the event, however, that you do encounter a dropout
problem, first try moving the receiver’s antennas at least
three or four feet from their original location. This may
alleviate the dropout problem at that location. If dropouts
are still a problem, try moving the unit to an entirely
different location in the room or moving the receiver if
antennas are attached, or the receiver’s antennas in
closer to the transmitter location.
Lectrosonics transmitters radiate power very efficiently,
and the receivers are very sensitive. This reduces
dropouts to an insignificant level. If, however, you do
encounter dropouts frequently, call the factory or consult
your dealer. There is probably a simple solution.
TRANSMITTER
PHASE
CANCELLATION
REFLECTIVE SURFACE
INDIRECT SIGNAL
DIRECT SIGNAL
RECEIVER
DIRECT SIGNAL
INDIRECT SIGNAL
14
MULTI-PATH DROPOUT
UHF Wireless Digital HybridTM Receiver
INSTALLATION AND OPERATING INSTRUCTIONS
1. Install a fresh battery or connect an external
power source to the UCR511 and attaach the
antennas.
2. Unless frequency settings have been
previously assigned, scan for an open
frequency and set both the receiver and
transmitter to that frequency. (See Finding
Clear Frequencies.)
3. Connect the audio cable to the Receiver Audio
Out XLR jack.
4. Set the Power ON/OFF switch to ON and
verify that the LCD panel activates.
5. Adjust the transmitter gain.
THIS IS
PERHAPS THE MOST IMPORTANT STEP IN
THE SET UP PROCEDURE.
Refer to your
transmitter manual’s Operating Instructions
section for details on how to adjust the
transmitter gain. In general, adjust the
transmitter gain so that the voice peaks will
cause the audio modulation indicators on the
receiver and transmitter to show full
modulation on the loudest peak audio levels.
Normal levels should cause the UCR511’s
audio level icon to fluctuate fully. This will
result in the best possible signal to noise ratio
for the system.
A common mistake at this point is to use the transmitter audio gain
control to set the overall audio level of the entire audio system. The
transmitter gain control is not a volume control and must be set
independently of the overall system audio level. The transmitter
gain control is only used to set the proper modulation of the
transmitter. To explain it another way, it is used to match the
transmitter to the type of microphone and the sound levels that will
be present at that microphone. We encourage users to either
disconnect the rest of the sound system or turn the sound system
gain to minimum to prevent feedback or overload as the transmitter
gain is set. That way, feedback from the sound system or overload of
other equipment does not get in the way of setting the transmitter
gain properly. Only after the transmitter gain control is set should
the gain of the rest of the audio system be adjusted to achieve the
desired sound or signal levels.
Note
6. Adjust the Audio Output according to the type
of input on your equipment. Use the LEVEL
menu and adjust the level with the SELECT
Up and Down buttons The input levels of
different cameras, VCRs, and PA equipment
vary, which may require that you adjust the
AUDIO OUT to an intermediate position. Try
different settings and listen to the results. If
the output of the receiver is too high, you may
hear distortion or a loss of the natural
dynamics of the audio signal. If the output is
too low, you may hear steady noise (hiss)
along with the audio. The UCR511 audio
output is designed to drive any audio input
Output
AUDIO
AMP
Level
Adjust
Squelch
Non-Polar
25V
Caps
50
2K
2K
50
XLR
OUT
2 (HI)
1 (COMMON)
3 (LO)
UCR411a Simplified Audio Output Circuit
device from microphone level to +10 dBu line
level.
The test tone output is especially useful for an exact level match.
With the test tone running, adjust for the maximum desired peak
level using the metering on the connected device.
Note
FINDING CLEAR FREQUENCIES
The folllowing procedure will help you identify RF signals
in the area and find clear channels for operating the
wireless system.
1. Ensure transmitter is turned off. Turn on the
receiver and wait a few seconds until the Main
Window appears on the LCD
Pilot Tone Indicator
Pilot
-40 -20 0 dB
1000
100
10
1
uV
2. Ensure the receiver is not in PILOT TONE
BYPASS mode. (A “P” will be blinking in the
upper left corner of the Main Window.)
1 2
Pilot
10
1
Div
LECTRO
-40 -20 0 dB
RF Aud Rx Tx
SEL
1000
100
uV
Press all three buttons at the same time and the
receiver will start scanning.
3. Simultaneously press the MENU and SELECT
Up and Down buttons to enter Scan Mode.
4. View the LCD while the receiver is scanning.
The vertical marker will move across the
BAT
BAT
MENU
ON
OFF
Rio Rancho, NM – USA
15
UCR511
Vertical marker moves left to right
Scan
1000
100
10
uV
1
B8
RF activity
Strength of RF activity is
indicated in microvolts with
markings on the front panel
display from left to right. RF activity will be
indicated by dark areas in the display.
5. RF signal strength is indicated by markings in
microvolts on the front panel to the left of the
LCD. Look for clear channels in the spectrum
Scan
1000
100
10
uV
1
B8
in scanning.
Press the SEL Up arrow button to select
USE OLD and return to the frequency
that was set before scanning.
LOCKING AND UNLOCKING THE UCR511
FRONT PANEL CONTROLS
1 2
Pilot
1000
100
SEL
Use the SEL Up and Down arrow buttons to select the old
-40 -20 0 dB
10
1
uV
RF Aud Rx Tx
Div
LECTRO
or new frequency.
BAT
MENU
OFF
ON
No RF activity (clear channel)
where there is no RF activity. Scanning will
repeat and continue until a button is pressed.
B8
Fine adjustment can be made when zoomed closer
6. If necessary, press the MENU button to zoom
in for greater detail for fine adjustment.
8. Then press the SEL Up and Down arrows to
move the marker to the middle of a clear area
1000
100
10
1
uV
Move marker to area with no RF activity
B8
where there is no RF activity. If an area with
no RF activity cannot be found anywhere in
the spectrum, locate one with the least
amount of RF activity.
9. Press all three buttons (SEL Up and Down
and MENU) to move to the next screen. Two
options will be shown.
Press the SEL Down arrow button to
select the USE NEW option and set the
receiver to the new frequency just found
.
The front panel panel controls can be “LOCKED” to
prevent accidental changes being made during operation
and handling.
To LOCK the UCR511 - Press and hold the MENU
button until a bar tracks horizontally across the LCD
screen and the word “LOCKED” appears. If the MENU
button is released before the word “LOCKED” appears,
the unit will remain UNLOCKED. When in a LOCKED
state, the pilot tone bypass toggle is also defeated.
In LOCKED state, the use of the MENU and SEL Up/
Down buttons are limited to “view only” and any attempts
to change selections will result in a LCD screen displaying the word “LOCKED.” The unit cannot be used for RF
scanning when it is set in the LOCKED state.
To UNLOCK the UCR511 - Press and hold the MENU
button until a bar tracks horizontally across the screen
and the word “UNLOCKED” is displayed on the LCD
screen. When the unit is UNLOCKED, all settings can be
altered.
The UCR511 can only be LOCKED or UNLOCKED from
any of the main windows. (There are four of them.)
Also, it cannot be switched between LOCKED and
UNLOCKED modes when it is in a scanning mode or
from other subordinate screens.
16
TO REPLACE THE BATTERIES
Lift and open the bottom battery door cover with your
thumb, rotate the door until it is perpendicular with the
case and allow the batteries to fall out of the compartment into your hand. It is difficult to install a battery
backwards. Observe the large and small holes in the
battery contact pad before inserting new batteries.
Insert the contact end of the battery first, making sure
the contacts are aligned with the holes in the contact
pad, and then swing the door closed. You will feel it snap
into place when it is fully closed.
UHF Wireless Digital HybridTM Receiver
Lithium batteries will expand and swell if allowed to go into a deep
CAUTION
discharge. Be sure to remove lithium batteries as soon as possible
after warnings. If lithium batteries are allowed to fully discharge
while still inside the battery compartment, they will be very difficult
to remove.
Stuck lithium batteries can be avoided by removing the label
wrapping around the battery before use. This will allow the battery
to swell but will still leave enough room in the compartment for the
battery to fall out normally.
1
To open the battery
compartment door, push the
door up and away from the
case with your thumb, then
swing open.
2
Rio Rancho, NM – USA
17
UCR511
Frequency Coordination
Intermodulation interference is a problem constantly
lurking in the background, especially when working in
environments were multiple productions are taking place
simultaneously in relative close proximity. In these
cases, proper frequency coordination is a must. There
are basically three methods coordinate frequencies:
Use the Compatible Frequency Chart
Scan for clear channels (See Frequency Scan Mode
and Using The Scan Function)
Call Lectrosonics
Compatible Frequency Chart
The Compatible Frequency Chart was designed to assist
in minimizing intermodulation problems for multiple
channel wireless systems. It does this by identifying
potential intermodulation problems and listing compatible
frequencies and frequency groups. This chart can be
used with all Digital Hybrid Wireless
™
receivers.
The Compatible Frequency Chart divides the frequency
blocks used in the North American market into Row 1
and Row 2, then further divides each row into two groups
of eight frequencies each. These frequency groups are
Compatible Frequency Chart
labeled A and B and C and D, and correspond to the
factory set frequency groups (Groups A, B, C and D)
described in the Tuning Setup Screen. (See Compatible
Frequency Chart.)
Understanding and using the Compatible Frequency
Chart is not as difficult as it first appears. There are a
few basic rules to follow:
Refer to the Compatibility Frequency Chart's Compatible and
Incompatible frequency combinations. (Only frequency blocks 21
and 22 are shown for illustrative purposes.)
Note
Rule No. 1
Row 1 and Row 2 live in two different worlds. The
frequencies in Row 1 are not compatible with the frequencies in Row 2. If you are forced to use frequencies
from Row 1 with frequencies from Row 2, be aware that
intermodulation problems may exist.
Rule No. 2
Frequencies within an individual frequency block in the
same row are compatible. For example, all 16 frequencies within Row 1, Block 21 are compatible, and all
Grp A
Grp B
ROW 1
Grp C
Grp D
ROW 2
BLOCK 21 BLOCK 22 BLOCK 23
FREQ SW SET US TV CH FREQ SW SET US TV CH FREQ SW SET US TV CH
The following frequency
combinations have no
intermodulation problems.
Grp A
Grp B
ROW 1
Grp C
Grp D
ROW 2
BLOCK 21 BLOCK 22
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0 tv29
538.700 tv25 564.300 tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 1,A tv25 565.800 1,A tv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 tv30
545.100 4,B tv26 570.700 B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B, D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D, A tv33
560.000 E,0 tv29 585.600 0 tv33
560.700 E,7 tv29 586.300 7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
0,B0,B
,5
,2
4,5
4,
E,
E,
Grp A
Grp B
ROW 1
Grp C
Grp D
ROW 2
BLOCK 21 BLOCK 22
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1 tv29
,4
540.200 1,A tv25 565.800 tv29
1,A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C tv28 582.600 C,2 tv32
,2
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B, D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
559.400 D,A tv28 585.000 D, A tv33
560.000 E,0 tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
BLOCK 21 BLOCK 22
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 1,A tv25 565.800 1,A tv29
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B, D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
559.400 D,A tv28 585.000 D,A tv33
560.000 E,0 tv29 585.600 0 tv33
E,
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
Incompatible
The following frequency
combinations have
intermodulation problems and should not be
used.
BLOCK 21 BLOCK 22
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 tv25 565.800 1,A tv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B, D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D, A tv33
560.000 E,0 tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1 tv25 565.200 1,4 tv29
540.200 tv25 565.800 1,A tv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B, D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D, A tv33
560.000 E tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
1,A
BLOCK 21 BLOCK 22
,4
1,A
,0
,4
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 1,A tv25 565.800 1,A tv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,Atv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,Dtv28 582.100 B,D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D,A tv33
560.000 E,0 tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 1,Atv25 565.800 1,Atv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.4003,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B,D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D,A tv33
560.000 E,0 tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
BLOCK 21 BLOCK 22
BLOCK 21 BLOCK 22
Compatible Frequency Chart (cont.)
FREQ SW SET US TV CH
538.100 0,5 tv25
538.700 0,B tv25
539.600 1,4 tv25
540.200 1,A tv25
Grp A
541.500 2,7 tv25
542.400 3,0tv26
542.900 3,5 tv26
543.700 3,D tv26
550.100 7,D tv27
552.300 9,3 tv27
553.000 9,A tv27
554.300 A,7 tv28
Grp B
ROW 1
556.100 B,9 tv28
557.000 C,2 tv28
559.600 D,C tv28
561.900 F,3 tv29
FREQ SW SET US TV CH
544.500 4,5 tv26
545.100 4,B tv26
546.000 5,4 tv26
546.600 5,A tv26
Grp C
547.600 6,4 tv26
548.800 7,0 tv27
549.300 7,5tv27
549.900 7,B tv27
555.500 B,3 tv28
556.500 B,D tv28
557.000 C,2 tv28
558.700 D,3 tv28
Grp D
ROW 2
559.400 D,A tv28
560.000 E,0 tv29
560.700 E,7 tv29
562.500 F,9 tv29
FREQ SW SET US TV CH FREQ SW SET US TV CH
538.100 0,5 tv25 563.700 0,5 tv29
538.700 0,B tv25 564.300 0,B tv29
539.600 1,4 tv25 565.200 1,4 tv29
540.200 1,A tv25 565.800 1,A tv29
Grp A
541.500 2,7 tv25 567.100 2,7 tv30
542.400 3,0 tv26 568.000 3,0 tv30
542.900 3,5 tv26 568.500 3,5 tv30
543.700 3,D tv26 569.300 3,D tv30
550.100 7,D tv27 575.700 7,D tv31
552.300 9,3 tv27 577.900 9,3 tv31
553.000 9,A tv27 578.600 9,A tv32
554.300 A,7 tv28 579.900 A,7 tv32
Grp B
ROW 1
556.100 B,9 tv28 581.700 B,9 tv32
557.000 C,2 tv28 582.600 C,2 tv32
559.600 D,C tv28 585.200 D,C tv33
561.900 F,3 tv29 587.500 F,3 tv33
FREQ SW SET US TV CH FREQ SW SET US TV CH
544.500 4,5 tv26 570.100 4,5 tv30
545.100 4,B tv26 570.700 4,B tv30
546.000 5,4 tv26 571.600 5,4 tv30
546.600 5,A tv26 572.200 5,A tv31
Grp C
547.600 6,4 tv26 573.200 6,4 tv31
548.800 7,0 tv27 574.400 7,0 tv31
549.300 7,5 tv27 574.900 7,5 tv31
549.900 7,B tv27 575.500 7,B tv31
555.500 B,3 tv28 581.100 B,3 tv32
556.500 B,D tv28 582.100 B,D tv32
557.000 C,2 tv28 582.600 C,2 tv32
558.700 D,3 tv28 584.300 D,3 tv32
Grp D
ROW 2
559.400 D,A tv28 585.000 D,A tv33
560.000 E,0 tv29 585.600 E,0 tv33
560.700 E,7 tv29 586.300 E,7 tv33
562.500 F,9 tv29 588.100 F,9 tv33
BLOCK 21
BLOCK 21 BLOCK 22
BLOCK 25
FREQ
SW SET US TV CH
640.500
641.100
642.000
642.600
643.900
644.800
645.300
646.100
652.500
654.700
655.400
656.700
658.500
659.400
662.000
664.300
FREQ
SW SET US TV CH
646.900
647.500
648.400
649.000
650.000
651.200
651.700
652.300
657.900
658.900
659.400
661.100
661.800
662.400
663.100
664.900
0,5 tv42
0,B tv42
1,4 tv42
1,A tv42
2,7 tv42
3,0 tv43
3,5 tv43
3,D tv43
7,D tv44
9,3 tv44
9,A tv44
A,7 tv45
B,9 tv45
C,2 tv45
D,C tv45/46
F,3 tv46
4,5 tv43
4,B tv43
5,4 tv43
5,A tv43
6,4 tv43/44
7,0 tv44
7,5 tv44
7,B tv44
B,3 tv45
B,D tv45
C,2 tv45
D,3 tv45
D,A tv45
E,0 tv46
E,7 tv46
F,9 tv46
BLOCK 26 BLOCK 27 BLOCK 28 BLOCK 29
FREQ
666.100
666.700
667.600
668.200
669.500
670.400
670.900
671.700
678.100
680.300
681.000
682.300
684.100
685.000
687.600
689.900
FREQ
672.500
673.100
674.000
674.600
675.600
676.800
677.300
677.900
683.500
684.500
685.000
686.700
687.400
688.000
688.700
690.500
SW SET US TV CH
0,5 tv46
0,B tv46
1,4 tv46
1,A tv47
2,7 tv47
3,0 tv47
3,5 tv47
3,D tv47
7,D tv48
9,3 tv49
9,A tv49
A,7 tv49
B,9 tv49
C,2 tv49
D,C tv50
F,3 tv50
SW SET US TV CH
4,5 tv47
4,B tv47
5,4 tv47/48
5,A tv48
6,4 tv48
7,0 tv48
7,5 tv48
7,B tv48
B,3 tv49
B,D tv49
C,2 tv49
D,3 tv50
D,A tv50
E,0 tv50
E,7 tv50
F,9 tv50
FREQ
691.700
692.300
693.200
693.800
695.100
696.000
696.500
697.300
703.700
705.900
706.600
707.900
709.700
710.600
713.200
715.500
FREQ
698.100
698.700
699.600
700.200
701.200
702.400
702.900
703.500
709.100
710.100
710.600
712.300
713.000
713.600
714.300
716.100
SW SET US TV CH
0,5 tv50
0,B tv51
1,4 tv51
1,A tv51
2,7 tv51
3,0 tv51
3,5 tv51
3,D tv51
7,D tv52
9,3 tv53
9,A tv53
A,7 tv53
B,9 tv53
C,2 tv54
D,C tv54
F,3 tv54
SW SET US TV CH
4,5 tv52
4,B tv52
5,4 tv52
5,A tv52
6,4 tv52
7,0 tv52
7,5 tv52
7,B tv52
B,3 tv53
B,D tv54
C,2 tv54
D,3 tv54
D,A tv54
E,0 tv54
E,7 tv54
F,9 tv55
FREQ
717.300
717.900
718.800
719.400
720.700
721.600
722.100
722.900
729.300
731.500
732.200
733.500
735.300
736.200
738.800
741.100
FREQ
723.700
724.300
725.200
725.800
726.800
728.000
728.500
729.100
734.700
735.700
736.200
737.900
738.600
739.200
739.900
741.700
SW SET US TV CH
0,5 tv55
0,B tv55
1,4 tv55
1,A tv55
2,7 tv55
3,0 tv55
3,5 tv56
3,D tv56
7,D tv57
9,3 tv57
9,A tv57
A,7 tv57
B,9 tv58
C,2 tv58
D,C tv58
F,3 tv59
SW SET US TV CH
4,5 tv56
4,B tv56
5,4 tv56
5,A tv56
6,4 tv56
7,0 tv56/57
7,5 tv57
7,B tv57
B,3 tv58
B,D tv58
C,2 tv58
D,3 tv58
D,A tv58
E,0 tv58
E,7 tv58
F,9 tv59
FREQ
742.900
743.500
744.400
745.000
746.300
747.200
747.700
748.500
754.900
757.100
757.800
759.100
760.900
761.800
764.400
766.700
FREQ
749.300
749.900
750.800
751.400
752.400
753.600
754.100
754.700
760.300
761.300
761.800
763.500
764.200
764.800
765.500
767.300
SW SET US TV CH
SW SET US TV CH
0,5 tv59
0,B tv59
1,4 tv59
1,A tv59
2,7 tv60
3,0 tv60
3,5 tv60
3,D tv60
7,D tv61
9,3 tv61
9,A tv61
A,7 tv62
B,9 tv62
C,2 tv62
D,C tv63
F,3 tv63
4,5 tv60
4,B tv60
5,4 tv60
5,A tv60
6,4 tv61
7,0 tv61
7,5 tv61
7,B tv61
B,3 tv62
B,D tv62
C,2 tv62
D,3 tv62
D,A tv63
E,0 tv63
E,7 tv63
F,9 tv63
Rio Rancho, NM – USA
19
UCR511
frequencies in Row 2 Block 21 are compatible. However,
frequencies in Row 1, Block 21 are not compatible with
the frequencies in Row 2, Block 21. If possible, it is
highly recommeneded to choose frequencies that are in
the same row and same group. For example, stick with
frequencies in Row 1 Group A, or Row 2 Group D rather
than choosing frequencies from Row 1 Groups A and B.
Rule No. 3
Some frequencies in adjacent blocks are compatible and
some are not. Refer to the illustration to the left which
shows compatible and incompatible frequency relationships.
By following the three rules, it is possible to locate a
number of potential clear operating frequencies early in
the production that are intermodulation free, then refine
the list during system setup.
Using the Scan Function
Refer to the section titled "Frequency Scan Mode" for
details on how to use the built-in spectrum scanner.
Interference can result from a wide variety of sources
including TV station signals and other wireless equipment in use nearby. The RF spectrum analyzer built into
the UCR511 scans the frequency block to identify
channels with little or no interference. After scanning
and finding the needed number of clear channels, one
final procedure is necessary to verify the compatibility of
the chosen frequencies.
Turn on all transmitters and receivers used for the
program and verify there is a strong RF signal for each
receiver. Turn each transmitter off one at a time and
observe the RF level indicator on the matching receiver.
The RF level should disappear or drop to a very low
level. If it does not, change frequency on that receiver
and transmitter and try it again.
Any time a frequency is changed on any of the systems
in use, you must start at the beginning and go through
this procedure for all systems. This will test for higher
order imtermodulation from all signal sources and avoid
interference.
Call Lectrosonics
Lectrosonics uses a proprietary computer program to
perform thousands of calculations and identify various
interfering signals. Potential problems and trouble areas
can be identified in advance, and proposed new frequencies or other solutions can be suggested. This service is
offered to authorized Lectrosonics dealers and other
customers who are using LECTRO™ or Lectrosonics
wireless microphone and wireless IFB systems.
®
20
UHF Wireless Digital HybridTM Receiver
UCR511 REPLACEMENT PARTS AND ACCESSORIES
Part No. Description
32251 Velcro mounting strips
CCMINI Zippered, padded vinyl system pouch
CH12E AC power supply with US type 2-pin plug on
housing, 110 VAC input; 12 VDC, 2.8 A output.
VSR1 Thin velcro loop for power cable strain relief.
A8U UHF marine phosphor bronze antenna -
straight connector, specify block.
A500RA UHF flexible whip antenna with right angle
BNC connector (470 - 608 MHz)
PS70 A/C power supply with US type 2-pin plug on
housing, 110 VAC input; 12 VDC, 2.8 A output.
UM500 Belt-pack Digital Hybrid Wireless
with over 50 mW power.
UMC200D Rack-mount multicoupler combining antenna
and power distribution for up to four Lectrosonics wireless microphone receivers. Includes
built-in power supply.
SIXPACK Portable multicoupler for field production
combining antenna and power distribution for
up to six Lectrosonics wireless microphone
receivers. Includes built-in rechargeable
battery pack for added mobility.
SNA600 Collapsible dipole antenna adjustable from 550
MHz to 800 MHz. Ideal for situations where a
full 360 degree receiving pattern is required as
opposed to a directional pattern.
provides useful directional pattern over 500 to
800 MHz range. Ideal for portable applications
including temporary setups for field production.
Not intended to be left outdoors permanently.
ALP700A LPDA (Log Periodic Dipole Array) provides
useful directional pattern over a broad frequency bandwidth (500 to 800 MHz).
ARG15-ARG100 Coaxial cables for remote antennas are
available from Lectrosonics in a variety of
lengths - from 2 to 100 ft. Cables include Velcro
tie wraps.
TM
transmitter
Rio Rancho, NM – USA
21
UCR511
TROUBLESHOOTING
Symptom Possible Causes
INITIAL POWER ON
LCD display not active or lit. External power supply disconnected or inadequate.
Main power supply fuse tripped. Turn the receiver off, remove the
cause of the overload and turn the receiver back on.
Wrong polarity power source. The external DC in requires
POSITIVE to be on the center pin.
Battery may be low. Try a fresh battery
Version message shows DSP or COM. This indicates an internal error. Please contact the factory for
assistance.
Display indicates CHECK FREQ.
This is a warning that a strong signal is present but it’s far enough
away from the center of the channel that the audio is likely to be
distorted. Try relocating to unused frequencies. If this doesn’t
remove the warning mesasge, the transmitter or receiver may
need repair.
PILOT TONE SQUELCH
PILOT indicator is solid “P”,
but no sound Audio output cable bad or disconnected.
Audio Output level set too low. Use the built-in test tone to verify
levels.
PILOT “P” keeps flashing when
transmitter audio switch is turned on Pilot tone detection can take several seconds. Turn on the
transmitter power (and the audio switch on some models) and
wait 3 to 5 seconds for the “P” to indicate steadily.
Transmitter and receiver not on same frequency.
Receiver compatibility mode does not match the trasmitter in use.
(See Menu Selections from Main Window, COMPAT.)
Noise on audio and Pilot indicator is “b” The pilot tone bypass has been activated. Hold MENU and press
UP to reset (works only from the Main Window).
Pilot indicator not present but audio is being received
Receiver is set to a compatibility mode that doesn’t use Pilot Tone.
Check that receiver compatibility mode matches the transmitter
in use as any sufficiently strong signal can unsquelch the
receiver in this mode, compatible or not.
In the 500 Series and 300 Series compatibility modes, the
PILOT indicator on the front panel shows as a solid “P” to
indicate that the audio has been turned on at the
transmitter, and that the audio output on the receiver is
enabled. When the “P” is on, the audio is enabled. If the
“P” is flashing the pilot tone is not detected and the audio
In the other compatibility modes, no pilot tone is used and
the “P” is never displayed. Audio is present whenever the
receiver detects a sufficiently strong signal.
Regardless of the compatibility mode, activating the “pilot
bypass” function causes a lowercase “b” to appear in the
pilot indicator position on the main window and forcibly
will be muted (squelched).
NOTE:
unsquelches the audio.
ANTENNAS AND RF SIGNAL STRENGTH
RF Level is weak Receiver may need to be moved or reoriented.
Antenna on transmitter may be defective or poorly connected -
double check antenna on transmitter.
Improper length of antenna, or wrong antenna on transmitter or
receiver. UHF whip antennas are generally about 3 to 5 inches
22
UHF Wireless Digital HybridTM Receiver
long. UHF helical antennas may be shorter, but are often less
efficient.
No RF Signal Make certain frequency switches on transmitter match the
receiver frequency setting.
Check battery in transmitter
AUDIO SIGNAL QUALITY
Poor signal to noise ratio Transmitter gain set too low
The noise may not be in the wireless system. Turn the transmitter
audio gain all the way down and see if the noise remains. If the
noise remains, then turn the power off at the transmitter and see
if it remains. If the noise is still present, then the problem is not
in the transmitter.
If noise is still present when the transmitter is turned off, try
lowering the audio output level on the UCR511 and see if the
noise lowers correspondingly. If the noise remains, the problem
is not in the receiver.
Receiver output is too low for the input of the device it is feeding.
Try increasing the output level of the UCR511 and lowering the
input gain on the device the UCR511 is feeding.
Distortion
Transmitter input gain too high. Check and/or readjust input gain on
transmitter according to the LEDs on the transmitter and then
verify the setting with the audio meter in the main window.
Audio output level too high for the device the UCR511 is feeding.
Lower the output level of the UCR511.
Bad frequency response or generally
poor audio quality. Ensure the receiver is set to the compatibility mode that matches
Scanning mode: Coarse and fine modes for RF spectrum site
scanning
Audio test tone: 1 kHz, -50 dBu to +5 dBu output, less than
1% THD
Transmitter battery type selection:
9 V alkaline, 9V lithium, AA alkaline,
AA lithium, NiMH
Phase invert: Audio output phase normal or inverted
SmartNR
(noise reduction): OFF, NORMAL, FULL modes
(available in 500 Series mode only)
Audio Performance (overall system):
(These specs apply to 500 Series mode only.)
Frequency Response: 32 Hz to 20 kHz (+/- 1dB)
THD: 0.2% (typical)
SNR at receiver output (dB):
(Note: the dual envelope “soft” limiter provides exceptionally good handling
of transients using variable attack and release time constants. The gradual
onset of limiting in the design begins below full modulation, which reduces
the measured figure for
SNR without limiting
SmartNR No Limiting W/ Limiting
OFF 102.0 106.5
NORMAL 105.0 109.5
FULL
106.0
by 4.5 dB)
110.5
Input Dynamic Range: 125 dB (with full Tx limiting)
Rear Panel Controls and features:
XLR audio output jack; External DC
input; Battery compartment access
Power Options:
Ext DC: Minimum 10 Volts to maximum 18
VDC; 1.6 W, 180 mA at 12 VDC
Int Batt: 9 Volt alkaline or lithium
(165 mA @ 9 V, 240 mA @ 6 V)
Battery Life:
9V alkaline 6 to 8 hours continuous, up to 12
hours intermittent
9V lithium Up to 20 hours (continuous and
intermittent usage are the same)
Weight: 14 oz. with batteries
Dimensions: 3.23" wide x 1.25" high x 4.64" deep
Specifications subject to change without notice
24
Transmitter (AA battery) x.xxV format,
accuracy +/- 0.05 V.
Timer option available when
transmitter battery is set to NiMH.
UHF Wireless Digital HybridTM Receiver
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 out the interconnecting cords and then go through the TROUBLESHOOTING section in the manual
We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop
attempt 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.
Rio Rancho, NM – USA
25
UCR511
This product meets the CE Compliance Standards - ETS 300 489; 2002-08,
I ETS 300 422; August 2002 and ENG 0950-1; 2001. A copy of the
Declaration of Conformity may be requested from your dealer or by
contacting the factory directly:
Lectrosonics, Inc.
Marketing Department
581 Laser Rd. NE, Rio Rancho, NM 87124 USA
tel: 505-892-4501 fax: 505-892-6243 e-mail: marketing@lectrosonics.com
26
UHF Wireless Digital HybridTM Receiver
Rio Rancho, NM – USA
27
UCR511
LIMITED ONE YEAR WARRANTY
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. This warranty does not apply to used or demonstrator equipment.
Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any
defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot
correct the defect in your equipment, it will be replaced at no charge with a similar new
item. Lectrosonics, Inc. will pay for the cost of returning your equipment to you.
This warranty applies only to items returned to Lectrosonics, Inc. or an authorized
dealer, shipping costs prepaid, within one year from the date of purchase.
This Limited Warranty is governed by the laws of the State of New Mexico. It states the
entire liablility of Lectrosonics Inc. and the entire remedy of the purchaser for any
breach of warranty as outlined above. NEITHER LECTROSONICS, INC. NOR
ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT
SHALL BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL,
OR INCIDENTAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THIS EQUIPMENT EVEN IF LECTROSONICS, INC. HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF
LECTROSONICS, INC. EXCEED THE PURCHASE PRICE OF ANY DEFECTIVE
EQUIPMENT.
This warranty gives you specific legal rights. You may have additional legal rights which
vary from state to state.
28
581 LASER ROAD
RIO RANCHO, NM 87124 USA
www.lectrosonics.com
October 22, 2004
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