T1
Multi-Frequency IFB Transmitter
INSTRUCTION MANUAL
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Purchase Date:
Rio Rancho, NM, USA
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T1
LECTROSONICS, INC. 2
Multi-Frequency IFB Transmitter
Table of Contents
Introduction ............................................................................................................................................................................................4
General Technical Description ..............................................................................................................................................................5
Audio Input Interface ............................................................................................................................................................................ 5
Audio Processor ...................................................................................................................................................................................5
Compandor Noise Reduction ............................................................................................................................................................... 5
T1 IFB Transmitter Block Diagram ........................................................................................................................................................5
Pilot Tone ..............................................................................................................................................................................................6
Frequency Synthesizer ......................................................................................................................................................................... 6
Power Delay .........................................................................................................................................................................................6
Microcontroller ......................................................................................................................................................................................6
Transmitter ............................................................................................................................................................................................6
Antenna System ...................................................................................................................................................................................6
Front Panel Controls and Functions ....................................................................................................................................................7
T1 Front Panel ......................................................................................................................................................................................7
OFF/TUNE/XMIT Switch ...................................................................................................................................................................... 7
Power Up Sequence .............................................................................................................................................................................7
LED Display ..........................................................................................................................................................................................7
Adjusting Display Intensity ................................................................................................................................................................... 7
Freq Buttons (Up and Down) ................................................................................................................................................................7
Audio Level Control ..............................................................................................................................................................................7
-20/0 LEDs ...........................................................................................................................................................................................7
Rear Panel Controls and Functions .....................................................................................................................................................8
T1 Rear Panel ...................................................................................................................................................................................... 8
XLR Jack ..............................................................................................................................................................................................8
Mode Switches .....................................................................................................................................................................................8
12 VDC (Power Input Connector) .........................................................................................................................................................8
Antenna ................................................................................................................................................................................................8
Installation and Operation ..................................................................................................................................................................... 9
Operating Notes ...................................................................................................................................................................................10
Accessories ..........................................................................................................................................................................................10
Troubleshooting ...................................................................................................................................................................................11
Frequency Blocks and Ranges ...........................................................................................................................................................12
Specifications .......................................................................................................................................................................................13
Service and Repair ............................................................................................................................................................................... 14
Returning Units for Repair ..................................................................................................................................................................14
Rio Rancho, NM 3
T1
Introduction
Thank you for selecting the Lectrosonics frequency
agile, narrowband, T1 IFB (Interruptible Foldback)
transmitter. The T1 is the result of over 80 years of
engineering experience with the very latest components, in a design that addresses the most demanding
professional applications.
The Lectrosonics T1 IFB Transmitter along with the
companion R1 or R1a IFB Receivers allow on-air talent
to monitor program audio and receive cues from
directors and other production personnel.
The design of the T1 IFB Transmitter was the direct
result of numerous conversations with users, production
personnel and dealers across the US. The specific
concerns and needs brought up in these conversations
led directly to the development of the operational
features offered on the T1. Two hundred fifty six frequencies are user selectable in 100 kHz steps to
alleviate interference problems in travelling venues.
The T1 IFB Transmitter is a rugged, machined aluminum package. The input section is adjustable for
virtually any microphone or line level audio source.
Level indicating LEDs are provided on the control panel
to make level settings quick and accurate, without
having to view the receiver. The antenna is a detachable, locking 1/4 wavelength flexible bronze cable that
connects to a 50 Ohm BNC connector on the transmitter.
Only the T1 IFB Transmitter is covered in this manual.
Companion receivers are covered in separate manuals.
The T1 IFB Transmitter will operate with any
Lectrosonics R1 or R1a IFB Receiver in the same
frequency group.
LECTROSONICS, INC. 4
General Technical Description
Multi-Frequency IFB Transmitter
The T1 IFB Transmitter is comprised of a number of
functional subsystems, including Audio Input Interface,
Audio Processor, Pilot Tone, Frequency Synthesizer,
Microcontroller, Transmitter, Antenna System and
Power Supply. (See block diagram.)
The T1 is designed to operate with the Lectrosonics R1
and R1A IFB receivers, and Lectrosonics R400A
receivers, and features microprocessor control of 256
operating frequencies within any one of at least nine
frequency bands.
The T1 uses 20 kHz deviation for an efficient use of
bandwidth. The transmitter circuits are all regulated for
frequency stability and high audio performance. The
input amplifier is a discreet differential circuit which can
be adjusted to allow the use of many different input
sources.
Audio Input Interface
The input sensitivity and XLR pin functions can be
customized using a DIP switch located on the back
panel. Different combinations of gain and input configurations are possible without rewiring the mic connector.
Pin 1 of the XLR input connector is normally connected
directly to ground but an internal jumper can be moved
if a floating input is desired.
The Audio (+) and (–) are “dry” inputs and can each
withstand +/- 50 VDC.
Warning: Direct connection to a phone line can
damage the transmitter’s inputs.
Audio Processor
The Audio Processor section has several functions,
including signal limiting, filtering and companding
(dynamic range compression). Audio limiting is accomplished by a Shunt Limiter placed before the filter and
compandor circuits. A Bandpass Filter limits the audio
bandwidth to 100 Hz at the low end and 10 kHz in the
upper range. The single band compandor circuit
compresses the dynamic range of the audio signal and
prepares it for transmission. It is one half of a system
that requires a matching receiver to decode the signal
and restore its original dynamic range.
Compandor Noise Reduction
The single band compandor is a high quality audio
device that processes (compresses) the input signal so
that the large dynamic ranges of the input signals can
be transmitted to the receiver without overload or noise.
A complementary system in the receiver recovers
(decompresses) the original dynamics of the signal for
full audio quality. Compression and expansion ratios are
complementary at 2:1. High frequency pre-emphasis is
implemented in the transmitter to provide another 10 dB
signal to noise improvement. Matching de-emphasis is
provided in all receivers.
T1 IFB Transmitter Block Diagram
T1 IFB Transmitter
Block Diagram
Rio Rancho, NM 5
T1
Pilot Tone
The T1/R1A system uses an ultrasonic tone modulation
of the carrier to operate the receiver squelch. This “pilot
tone” consists of a 29.997 kHz signal which is mixed
with the audio signal just after the compandor. The pilot
tone controls the audio output muting of the receiver
and is filtered out of the audio signal immediately after
the detector in the receiver so that it does not influence
the compandor or various gain stages.
The benefit of the pilot tone squelch system is that the
receiver will remain muted until it receives the pilot tone
from the matching transmitter, even if a strong RF
signal is present on the carrier frequency of the system.
Frequency Synthesizer
The transmitter uses a synthesized, frequency selectable main oscillator. The frequency is extremely stable
over a wide temperature range and over time. Two
push-button switches, located on the front panel of the
unit, provides the user with 256 frequencies in 100 kHz
steps over a 25.5 MHz range. This significantly alleviates carrier interference problems in mobile or traveling
applications.
Power Delay
There is a five second power-ON/OFF delay to prevent
audio thumps when switching from XMIT to TUNE or
from TUNE to OFF. This delay also gives the Frequency Synthesizer time to fully stabilize. When the
transmitter is powered OFF, the Pilot Tone is first turned
off muting the audio at the receiver before the rest of
the transmitter is powered down. This prevents clicks,
thumps or feedback from entering the sound system.
Microcontroller
Frequency adjustment and display are handled by the
microprocessor. Nonvolatile memory is provided for
holding the last frequency used, even if power is
removed from the unit for any length of time. Each time
the transmitter is powered up, it will display the last
frequency used.
Transmitter
The T1 transmitter operates at 250 mW, more powerful
than most IFB systems on the market today. The higher
power ensures a clean signal free of dropouts and
noise. The transmitter circuits are buffered and filtered
for exceptional spectral purity. The extra clean signal
that results reduces the chances for interference
between multiple transmitter installations.
Antenna System
The antenna on the T1 consists of a flexible 1/4 wavelength bronze cable, detachable via a BNC connector.
The 50 ohm output connector works conveniently with a
variety of remote antennas for installation in studios and
production trucks & vans.
LECTROSONICS, INC. 6
Front Panel Controls and Functions
Multi-Frequency IFB Transmitter
T1 Front Panel
OFF/TUNE/XMIT Switch
OFF Turns the unit off.
TUNE Mutes the transmitter section while
enabling the up and down frequency
buttons for setting the operating
frequency of the transmitter.
XMIT Normal operating position. With the
switch in this position, the unit is
transmitting a modulated signal to the
corresponding receiver, and the FREQ
buttons are limited to temporarily
displaying the transmitter HEX switch
settings for the operating frequency and
the TV channel, before reverting back to
displaying the actual operating frequency.
Freq Buttons (Up and Down)
The transmitter frequency is changed by pressing the
appropriate button (see Note). Each push will change
the frequency, up or down, in 100 kHz increments, or
one channel at a time. The FREQ buttons are enabled
when the OFF/TUNE/XMIT switch is in the TUNE
position. Whenever a selected FREQ button is pressed
for more than five seconds, the speed of change
increases to about five channels per second. The T1
will “remember” the last channel selected when the unit
is turned off, and it will set itself to that frequency when
the unit is reenergized.
When the switch is in the XMIT mode, pressing the
FREQ up/down buttons will not disturb the frequency or
the transmitter signal output. In XMIT mode, momentarily pressing the up FREQ button momentarily displays the HEX switch settings (shown with an Fr prefix),
to the TV channel, then automatically reverts to the
operating frequency display after 3 seconds unless the
button is held. Momentarily pressing the down FREQ
button displays the TV channel first, the HEX switch
settings next, and then reverts back to the operating
frequency.
Note: When the highest or lowest frequency is
reached, the unit will wrap around and continue in
the same direction at the other end of the range.
Power Up Sequence
When the OFF/TUNE/XMIT switch is first turned on, the
front panel LED display cycles through the following
sequences:
1.“TEST MODE” momentarily illuminating all
display segments (8.8.8.8.)
2.Momentarily displays firmware version number,
(i.e. 4.0)
3.Displays operating frequency in MHz.
LED Display
This 4-digit display indicates the channel (or operating)
frequency of the unit to the nearest 0.1 MHz (100 kHz).
The LED display also indicates low input power by
blinking continuously when the input voltage drops
below 11.0 Volts.
Adjusting Display Intensity
The LED display’s brightness may be adjusted from 1 to
15, with 15 being the highest intensity. To adjust the
display intensity, turn the unit off, then hold the FREQ
up button while turning the unit back on. The display
will show the current intensity setting. Use the FREQ
up and FREQ down buttons to adjust the brightness
setting. When finished, turn the unit off, wait until the
display extinguishes (about 4 seconds), then turn the
unit back on.
Audio Level Control
The Audio Level Control is used to adjust the audio
input level for proper modulation. The gain range is
+/-15 dB. The reference for this control can be changed
with the rear panel MODE switches. See the INSTALLATION AND OPERATION section for more information
on the MODE switches.
-20/0 LEDs
These two LEDS are used to set the MIC LEVEL
control and provide a visual indication of audio gain
levels during normal system operation.
-20 LED Flickers when audio level is -20 dB below
full modulation.
0 LED Flickers when the input level is high
enough to cause limiting. The input
limiter has a very high overload threshold.
Generally speaking, some limiting is
desirable in normal operation to improve
the signal to noise ratio of the system.
The limiting action is not audible and
does not create distortion.
Rio Rancho, NM 7
T1
Rear Panel Controls and Functions
T1 Rear Panel
XLR Jack
A standard XLR female jack accepts a variety of input
sources depending on the setting of the MODE dip
switch. XLR pin functions can be changed to suit the
source depending on the positions of the individual
switches. For detailed information on the setting of
these switches see the INSTALLATION AND OPERATION section.
Mode Switches
These dip switches configure the XLR input jack to
accommodate a variety of audio sources. The rear
panel is marked with the most common switch combinations.
The MODE switches allow the T1 to accommodate a
variety of input sources by changing the input sensitivity
and the pin functions of the input XLR jack. Marked on
the rear panel are the most common settings. Each
setting is detailed below. Switches 1 and 2 adjust the
XLR pin functions while switches 3 and 4 adjust the
input sensitivity.
12 VDC (Power Input Connector)
The T1 is designed to be used with the CH20 external
power source, which is plugged into the 12 VDC
external power input connector. The nominal voltage to
operate the unit is 12 VDC; although it will operate at
voltages as low as 11 VDC and as high as 18 VDC.
A suitable alternate power source must be able to
handle 250 mA continuous consumption.
Antenna
The T1’s ANTENNA connector is a standard 50 ohm
BNC configuration, which can accept an integral whip or
a cable to a remote antenna.
Switch
Positions
Name
CC
MIC
LINE 2 = Hi
RTS1 2 = Hi
RTS2
1 2 3 4 XLR Pins Balanced?
3 = Audio
1 = Common
2 = Hi
3 = Lo
1 = Common
3 = Lo
1 = Common
1 = Common
3 = Hi
1 = Common
* Input
Sensitivity
No -6 dBu
Yes -40 dBu
Yes +4 dBu
No +4 dBu
No +4 dBu
LECTROSONICS, INC. 8
Installation and Operation
Multi-Frequency IFB Transmitter
1) The T1 transmitter is shipped with pin 1 of the XLR
input connector tied directly to ground. If a floating
input is desired, a Ground Lift Jumper is provided.
This jumper is located inside the unit on the PC
board near the rear panel XLR jack. If a floating
connection is desired, open the unit and move the
Ground Lift Jumper to the desired location.
Location of Ground LIft Jumper:
2) Set the MODE switches on the rear panel to match
the specific input source to be used. (See Mode
Switches.)
3) Insert the power supply plug into the 12 VDC jack
on the rear panel.
4) Insert the microphone XLR plug into the input jack.
Ensure the pins are aligned and that the connector
locks in.
5) Attach the antenna (or antenna cable) to the BNC
connector on the rear panel.
6) Mute the sound source connected to the T1.
7) Set the OFF/TUNE/XMIT switch to TUNE.
8) Adjust the transmitter to the desired frequency with
the front panel FREQ up/down buttons.
9) Position the microphone. The microphone should
be placed in the position in which it will be used
during the program.
10) While speaking at the same voice level that will be
used during the program, observe the front panel
“0” and “-20” Modulation LEDs. Set the AUDIO
LEVEL control to minimum (maximum counterclockwise), then adjust the AUDIO LEVEL control
until the “-20” LED begins to flicker. Gradually,
increase the gain until the “-20” LED glows and the
0 LED begins to flicker. The “-20” LED lights when
the audio level is about 20 dB below full modulation.
The “0” LED lights when the limiter begins to
operate. There is over 15 dB of limiting range
without overload above the “0” LED. It is desirable
that it glows about 5-10 percent of the time during
use.
11) Once the transmitter audio gain has been set, the
receiver and other components of the system can
be energized and their audio levels adjusted. Set
the power switch on the T1 transmitter to the XMIT
and adjust the associated receiver and sound
system level as required.
Note: There will be a delay between the moment
the transmitter is energized and when audio will
actually appear at the receiver output. This
intentional delay eliminates turn on thumps, and is
controlled by the pilot tone squelch control.
Rio Rancho, NM 9
T1
Operating Notes
The AUDIO LEVEL control should not be used to
control the volume of the associated receiver. This gain
adjustment is used to match the T1 input level to the
incoming signal from the sound source to provide full
modulation and maximum dynamic range.
If the audio level is too high — both LEDs will light
frequently or stay lit. This condition may reduce the
dynamic range of the audio signal.
If the audio level is too low — neither LED will light,
or the -20 LED will glow dimly. This condition may
cause hiss and noise in the audio, or pumping and
breathing in the background noise.
The “-20” LED turns on approximately 20 dB below full
deviation. The “0” LED turns on at full deviation and
Accessories
CH20
Power supply for IFB base transmitters with locking
LZR power jacks; 110 VAC input, 12 VDC regulated
output; 400 mA max.
21586
DC16A Pigtail power cable, LZR to strip & tin
SNA600
Collapsible dipole antenna that adjusts over a wide
frequency range. Ideal for situations where a full
360 degree receiving pattern is required as opposed to a directional pattern.
ALP600
Shark Fin style Log Periodic Dipole Array (LPDA)
that provides a useful directional pattern over a
broad frequency bandwidth. Ideal for portable
applications including temporary setups for field
production.
ALPKIT
Stainless steel kit for mounting SNA600 and
ALP600 antennas on photo and video tripods,
lighting equipment, and standard microphone
stands.
ARG15/ARG100
Coaxial cables for remote antennas available from
Lectrosonics in a variety of lengths from 2 to 100 ft.
RMP195
4 channel rack mount for up to four T1 IFB
receivers. Rocker switch installed to work as a
master power switch if desired.
indicates that the input shunt compressor is operating.
The input limiter will handle peaks over 15 dB above full
modulation, regardless of the gain control setting. The
limiter uses a true absolute value circuit to detect both
positive and negative peaks. The attack time is 5
milliseconds and the release time is 200 milliseconds.
Occasional limiting is desirable, indicating that the gain
is correctly set and the transmitter is fully modulated for
optimum signal to noise ratio. Different voices will
usually require different settings of the AUDIO LEVEL
control, so check this adjustment as each new person
uses the system. If several different people will be using
the transmitter and there is not time to make the
adjustment for each individual, adjust it for the loudest
voice.
CH20
SNA600
ALP600
ARG15/ARG100
RMP195
LECTROSONICS, INC. 10
Multi-Frequency IFB Transmitter
Troubleshooting
Symptom: Possible Cause:
Display Dead or Blinking On and Off 1) External power supply disconnected or inadequate.
2) The External DC power input is protected by an auto-reset
polyfuse. Disconnect power and wait about 10 seconds for the
fuse to reset.
No Transmitter Modulation LEDs 1) AUDIO LEVEL turned all the way down.
2) Sound source off or malfunctioning.
3) Input cable damaged or mis-wired.
No Received Signal 1) Transmitter not turned on.
2) Receiver antenna missing or improperly positioned.
(The headset cable is the antenna.).
3) Transmitter and receiver not on same frequency.
Check on transmitter and receiver.
4) Operating range is too great.
5) Transmitter antenna not connected.
6) Transmitter switch in the TUNE position. Switch to XMIT mode.
No Sound (or Low Sound Level), and Receiver LED is On
1) Receiver output level set too low.
2) Receiver earphone cable is defective or mis-wired.
3) Sound system or transmitter input is turned down.
Distorted Sound 1) Transmitter gain (audio level) is far too high. Check mod level lamps
on transmitter as it is being used. (Refer to Installation & Operation
section for details on gain adjustment.)
2) Receiver output may be mismatched with the headset or earphone.
Adjust output level on receiver to the correct level for the headset
or earphone.
3) Excessive wind noise or breath “pops.” Reposition microphone
and/or use a larger windscreen.
Hiss, Noise, or Audible Dropouts 1) Transmitter gain (audio level) far too low.
2) Receiver antenna missing or obstructed. (The headset cable is
the antenna.)
3) Transmitter antenna missing or mismatched. Check that the correct
antenna is being used
4) Operating range too great.
5) Defective remote antenna or cable.
Rio Rancho, NM 11
T1
Frequency Blocks and Ranges
The table below lists the factory designated frequency
ranges available for the T1 IFB Transmitter.
Each T1 transmitter is built to cover a pre-selected
range of frequencies (a “block”) as shown below. The
transmitter will tune to any of 256 different frequencies
within this factory assigned block.
The block number is determined by this formula:
25.6 × Freq. (MHz) = Lowest freq. (MHz) in
the block
To determine a block number from a frequency:
Freq. (MHz) divided by 25.6 = Block number
It is handy to remember these formulas, in case you do
not have a copy of the table. For example, suppose you
need to know which block covers 685.500 MHz, which is
in the middle of the Block 26 frequency range.
FREQUENCY
BLOCK RANGE
21 537.600 - 563.100 Brown 4.74"
685.500 divided by 25.6 = 26.77734375
The first two digits left of the decimal are the block
number. In this case, 685.500 MHz falls within block
26.
The T1 IFB transmitter antennas are color coded to
indicate the frequency block that they operate within.
The length of the antenna varies with the frequency
block. The actual length of the antenna is not as critical
as it might appear in the table below. The usable
bandwidth of the detachable antenna is +/- 50 MHz
from the block’s center frequency, so it is acceptable to
use an antenna from an adjacent block above or below
the operating frequency if some loss in range can be
tolerated.
Part of block 23 is not used since it covers a 608 to 614
MHz band that is illegal for use with wireless microphones.
ANT SLEEVE ANTENNA
COLOR WHIP LENGTH
22 563.200 - 588.700 Red 4.48"
23 588.800 - 614.300 Orange 4.24”
24 614.400 - 639.900 Yellow 4.01"
25 640.000 - 665.500 Green 3.81"
26 665.600 - 691.100 Blue 3.62"
27 691.200 - 716.700 Violet (Pink) 3.46"
28 716.800 - 742.300 Grey 3.31"
29 742.400 - 767.900 White 3.18"
30 768.000 - 793.500 Black 3.08" (Export Only)
31 793.600 - 819.100 Black 2.99” (Export Only)
32 819.200 - 844.700 Black 2.92” (Export Only)
33 844.800 - 865.000 Black 2.87” (Export Only)
LECTROSONICS, INC. 12
Multi-Frequency IFB Transmitter
Specifications
Operating Frequencies: Block 21 537.600 - 563.100 Block 25 640.000 - 665.500
Block 22 563.200 - 588.700 Block 26 665.600 - 691.100
Block 23 588.800 - 607.900 Block 27 691.200 - 716.700
614.100 - 614.300 Block 28 716.800 - 742.300
Block 24 614.400 - 639.900 Block 29 742.400 - 767.900
Frequencies (Channels per block): 256
Channel Spacing: 100 kHz (0.1 MHz)
Spurious & Harmonic Suppression: 1 uW at freq. above 1 GHz
4 nW at freq. below 1 GHz
Frequency Stability: ±.002% (20 ppm) @ 25° C
Temperature Stability: ±.005% (50 ppm) from -30° C to +50° C
Channel Selection: Momentary pushbutton switches, TUNE Up and Down
Pilot Tone: 29.997 kHz
Modulation: FM, ±20 kHz deviation
Audio Response: 100 Hz to 10 kHz, ±1 dB, -3dB (system response)
Audio Compressor: 2 to 1
RF Power Output: 250 mw (nominal)
Output Impedance: 50 ohms
Audio Input Levels: +4 dBu, -6 dBu, and -40 dBu, dry inputs, +/-50Vdc max,
Audio Input Config: Balanced and Unbalanced, rear panel selectable
Audio Input Impedance: Greater than 2 K balanced, greater than 1 K unbalanced
Gain Control Range: 43 dB, Semi-log Rotary control
Audio Input Jack: Standard XLR female connector
Input Power: 12 to 14 VDC typical, 250 ma. max.; Max. Input Range 11 to 18 VDC
Power Input Jack: Coax type, locking LZR RL26AE
Indicators: LED for -20 dB modulation
Front panel controls: Audio Level rotary knob
Rear panel controls: Mode Select, 4 section DIP switch
Weight: 9 oz.
Size: 5.25" long (including connectors) x 3.25" wide x 1.25" high
rear panel selectable for Line, Mic, RTS 1, RTS 2, and Clear Comm
for Line, Mic. RTS 1, RTS 2, and Clear Comm
at any gain setting
LED for 0 dB modulation
4 Digit 7-segment LED displays for frequency and power on
with adjustable brightness
Power OFF-TUNE-XMIT, 3 position slide switch
TUNE Up momentary pushbutton switch
TUNE down momentary pushbutton switch
Specifications subject to change without notice.
Emission designator: 80KOF3E
The T1 IFB transmitter is FCC type accepted under Part 74: 470 - 608MHz and 614 - 806MHz
The FCC requires that the following statement be included in this manual:
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device
should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any
other antenna or transmitter.
Rio Rancho, NM 13
T1
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
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.
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 letter 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.
Mailing address: Shipping address: Telephone:
Lectrosonics, Inc. Lectrosonics, Inc. (505) 892-4501
PO Box 15900 581 Laser Rd. (800) 821-1121 Toll-free
Rio Rancho, NM 87174 Rio Rancho, NM 87124 (505) 892-6243 Fax
USA USA
Web: E-mail:
www.lectrosonics.com sales@lectrosonics.com
LECTROSONICS, INC. 14
Multi-Frequency IFB Transmitter
Rio Rancho, NM 15
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.
581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com
(505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.com
September 2, 2005
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