Lucoro Broadcast FMTX1 User manual

FMTX
FMTXFMTX
FMTX1
11
1
Stereo FM Transmitter with integrated
Stereo FM Transmitter with integratedStereo FM Transmitter with integrated
Stereo FM Transmitter with integrated
DSP Audio Processor, Digital Stereo Encoder and
DSP Audio Processor, Digital Stereo Encoder and DSP Audio Processor, Digital Stereo Encoder and
DSP Audio Processor, Digital Stereo Encoder and
Direct Digital Synthesis RDS Encoder
Direct Digital Synthesis RDS EncoderDirect Digital Synthesis RDS Encoder
Direct Digital Synthesis RDS Encoder
User
UserUser
User Manual
ManualManual
Manual
ARNING!
ARNING!ARNING!
ARNING!
This Transmitter is capable of generating RF potential. Touching
This Transmitter is capable of generating RF potential. Touching This Transmitter is capable of generating RF potential. Touching
This Transmitter is capable of generating RF potential. Touching
internal parts, or the connected antenna system,
internal parts, or the connected antenna system, internal parts, or the connected antenna system,
internal parts, or the connected antenna system, may
maymay
may cause RF
cause RF cause RF
cause RF
burns. Antenna systems should be installed such that exposure
burns. Antenna systems should be installed such that exposure burns. Antenna systems should be installed such that exposure
burns. Antenna systems should be installed such that exposure
by any person to RF fields cannot exceed safe limits. The
by any person to RF fields cannot exceed safe limits. The by any person to RF fields cannot exceed safe limits. The
by any person to RF fields cannot exceed safe limits. The
permitted
permittedpermitted
permitted limits vary from country to country. Expert advice
limits vary from country to country. Expert advice limits vary from country to country. Expert advice
limits vary from country to country. Expert advice
should be sought about the safe installation of this transmission
should be sought about the safe installation of this transmission should be sought about the safe installation of this transmission
should be sought about the safe installation of this transmission
system.
system.system.
system.
RISK OF FIRE!
RISK OF FIRE! RISK OF FIRE!
RISK OF FIRE!
RF (Radio Frequency) energy could cause ignition of combustible
RF (Radio Frequency) energy could cause ignition of combustible RF (Radio Frequency) energy could cause ignition of combustible
RF (Radio Frequency) energy could cause ignition of combustible
surfaces during fault
surfaces during fault surfaces during fault
surfaces during fault conditions. Installation should be left to
conditions. Installation should be left to conditions. Installation should be left to
conditions. Installation should be left to
qualified personnel. RF can cause burns to skin. Ensure antenna
qualified personnel. RF can cause burns to skin. Ensure antenna qualified personnel. RF can cause burns to skin. Ensure antenna
qualified personnel. RF can cause burns to skin. Ensure antenna
systems and feeder cables are not situated near, or could fall
systems and feeder cables are not situated near, or could fall systems and feeder cables are not situated near, or could fall
systems and feeder cables are not situated near, or could fall
onto, any combustible surface.
onto, any combustible surface.onto, any combustible surface.
onto, any combustible surface.

IMPORTANT!
IMPORTANT! IMPORTANT!
IMPORTANT!
Always reduce the RF Ou
Always reduce the RF OuAlways reduce the RF Ou
Always reduce the RF Out
tt
tput
put put
put power to minimum before changing
power to minimum before changing power to minimum before changing
power to minimum before changing
the transmission frequency. Once the new frequency is active,
the transmission frequency. Once the new frequency is active, the transmission frequency. Once the new frequency is active,
the transmission frequency. Once the new frequency is active,
slowly increase the RF output power control to provide the
slowly increase the RF output power control to provide the slowly increase the RF output power control to provide the
slowly increase the RF output power control to provide the
required power output level.
required power output level.required power output level.
required power output level.
ARNING!
ARNING! ARNING!
ARNING!
Never operate this device without a suitable 50 ohm load
Never operate this device without a suitable 50 ohm load Never operate this device without a suitable 50 ohm load
Never operate this device without a suitable 50 ohm load
connected to the RF OUTPUT socket, or without a suitabl
connected to the RF OUTPUT socket, or without a suitablconnected to the RF OUTPUT socket, or without a suitabl
connected to the RF OUTPUT socket, or without a suitably
y y
y
installed and matched
installed and matched installed and matched
installed and matched antenna
antennaantenna
antenna system
systemsystem
system connected
connectedconnected
connected. Although the
. Although the . Although the
. Although the
output of this transmitter is protected against antenna
output of this transmitter is protected against antenna output of this transmitter is protected against antenna
output of this transmitter is protected against antenna load
load load
load
faults
faultsfaults
faults, MIS
, MIS, MIS
, MIS-
--
-OPERATION MAY RESULT IN DAMAGE NOT COVERED
OPERATION MAY RESULT IN DAMAGE NOT COVERED OPERATION MAY RESULT IN DAMAGE NOT COVERED
OPERATION MAY RESULT IN DAMAGE NOT COVERED
BY ANY ARRANTY.
BY ANY ARRANTY.BY ANY ARRANTY.
BY ANY ARRANTY.
IMPORTANT!
IMPORTANT! IMPORTANT!
IMPORTANT!
Correct operation of the cooling fans in this product is vital to
Correct operation of the cooling fans in this product is vital to Correct operation of the cooling fans in this product is vital to
Correct operation of the cooling fans in this product is vital to
reliable
reliable reliable
reliable continu
continucontinu
continuous
ousous
ous operation. Schedule
operation. Schedule operation. Schedule
operation. Schedule bi
bibi
bi-
--
-annual maintenance
annual maintenance annual maintenance
annual maintenance
checks. e strongly advise the use of a standby transmitter
checks. e strongly advise the use of a standby transmitter checks. e strongly advise the use of a standby transmitter
checks. e strongly advise the use of a standby transmitter
system for use during maintenance events or fault conditions
system for use during maintenance events or fault conditionssystem for use during maintenance events or fault conditions
system for use during maintenance events or fault conditions,
,,
, to
to to
to
pre
prepre
prevent prolonged breaks in transmission.
vent prolonged breaks in transmission.vent prolonged breaks in transmission.
vent prolonged breaks in transmission.
IMPORTANT!
IMPORTANT! IMPORTANT!
IMPORTANT!
hen
henhen
hen cycling the power off, then on, ensure that the tr
cycling the power off, then on, ensure that the trcycling the power off, then on, ensure that the tr
cycling the power off, then on, ensure that the transmitter
ansmitteransmitter
ansmitter
is off for at least 10 seconds before re
is off for at least 10 seconds before reis off for at least 10 seconds before re
is off for at least 10 seconds before re-
--
-applying power, to
applying power, to applying power, to
applying power, to allow
allowallow
allow
the internal circuits
the internal circuits the internal circuits
the internal circuits time
time time
time to
to to
to fully
fully fully
fully reset.
reset.reset.
reset. Failure to do so may result
Failure to do so may result Failure to do so may result
Failure to do so may result
in
inin
in no RF output (PLL failsafe
no RF output (PLL failsafeno RF output (PLL failsafe
no RF output (PLL failsafe mode
modemode
mode).
).).
).
Consideration should be given to fitting a suitably rated UPS if
Consideration should be given to fitting a suitably rated UPS if Consideration should be given to fitting a suitably rated UPS if
Consideration should be given to fitting a suitably rated UPS if
power interruptions are likely. Similarly, telemetry reset of power
power interruptions are likely. Similarly, telemetry reset of power power interruptions are likely. Similarly, telemetry reset of power
power interruptions are likely. Similarly, telemetry reset of power
may be advisable for transmitters in remote areas, or having
may be advisable for transmitters in remote areas, or having may be advisable for transmitters in remote areas, or having
may be advisable for transmitters in remote areas, or having
restricted access arrangements.
restricted access arrangements.restricted access arrangements.
restricted access arrangements.

The FMTX1 is a fully integrated 1 Stereo FM broadcast system with
audio processing, stereo encoder and RDS encoder in a single, highly
compact product.
The DSP audio processor provides intelligent Automatic Gain Control,
multi-band compressor/limiters, plus clipping and DSP 15KHz filtering.
The unique algorithm transparently adapts to, and automatically
optimises, all audio source material.
The integral RDS encoder uses direct digital waveform synthesis for
clean, perfect
generation of the 57kHz subcarrier. As well as PS (station
name) information, extended features - including RadioTEXT,
Alternative Frequency and Traffic Announcement content - are also
broadcast. Being standalone, a dedicated computer or data feed are
not required. Periodic content updates are easily performed using a
indows™ Laptop or PC, plugged into a USB port located on the back
panel.
At the heart of the FMTX1 is a high quality PLL modulator, and the RF
Power Amplifier uses the latest high-gain Enhancement Mode MOSFET
device, achieving new levels of efficiency and reliability.
TTL remote monitoring and switching allows the FMTX1 to be easily
integrated into automated back-up applications. An audio silence
alarm, plus remote RDS TA control.
These instructions should be read in full before the transmitter is
operated.
The safety and operating instructions should be retained for future
reference.
All warnings on the transmitter and in the operating instructions
should be adhered to.
All operation and user instructions should be followed.
In
troduction
Before operating

Use of this device into a radiating antenna requires a valid licence from
a Spectrum Management Authority in most countries.
Use of this device as part of a transmission system, or combined
transmission system not specified by the manufacturer, may require
further testing to ensure that it remains compliant with the essential
requirements and other relevant provisions of current EU Low Voltage,
EMC and Radio Equipment Directives. Approval and clearance from the
Spectrum Management Authority may also be required.
Installation must adhere to safety regulations and the requirements of
the relevant authorities. e recommend that at least two people are
present during installation. Keep a file containing installation
instructions and plans, including details of the transmission system
(antennas, feeders, filters, etc) and operating instructions for all
equipment at the transmission site at all times. Display posters
detailing first aid treatment and treatment for electrical shock, along
with telephone numbers for contacting the emergency services in the
event of personal injury.
Ensure antenna system lightning strike protection is in place.
To reduce the risk of electrical shock, do not remove the cover, or any
screws. There are no user serviceable parts inside; refer servicing to
qualified personnel.
Do not expose this appliance to rain or moisture. The transmitter
should not be used near water. Care should be taken so that objects
do not fall - and liquids are not spilled - into the enclosure through
openings.
To reduce the risk of fire, always replace fuses with the same type and
rating.
The transmitter should be mounted into a well-ventilated standard 19
inch equipment rack. It should be situated so that its location or
position does not interfere with its proper ventilation.
The transmitter should be situated away from heat sources.
The transmitter should be connected to a power supply only of the
type described in the operating instructions or as marked on the unit.
Precautions should be taken so that the grounding or polarisation of
this appliance is not defeated.
The unit should be cleaned only as recommended by the
manufacturer.

The transmitter should be serviced by qualified service personnel if it
does not appear to operate normally, exhibits a marked change in
performance, has been subjected to shock, damage, moisture, or if
foreign objects have ingressed.
The user should not attempt to service the transmitter beyond that
which is described in the Operating Instructions. All other servicing
should be referred to qualified service personnel.
This appliance may become warm under normal operating conditions.
Recycle according to EEE regulations.
1. RF MON
RF MONRF MON
RF MON BNC connector for monitoring of the RF output. Output
level will be the RF output level attenuated by approximately 40dB. Not
to be used for measurement of harmonics.
2. MPX MON
MPX MONMPX MON
MPX MON BNC connector for monitoring of the input to the
modulator (baseband spectrum).
3. DISPLAY
DISPLAY DISPLAY
DISPLAY G-LCD type display for system readings and settings.
4. UP / ENTER / DO N
UP / ENTER / DO NUP / ENTER / DO N
UP / ENTER / DO N Push-buttons. Press this control to navigate the
LCD menu.
Controls and Connectors

5. AUDIO IN (LEFT / RIGHT)
AUDIO IN (LEFT / RIGHT)AUDIO IN (LEFT / RIGHT)
AUDIO IN (LEFT / RIGHT) XLR Sockets. Connect a +8dB 600ohm
balanced audio feed to these sockets.
6. USB
USBUSB
USB Port
PortPort
Port. Connect the to indows™ PC or Laptop to program the
RDS content. Free software can be downloaded at:
lucorobroadcast.com/support
7. RF OUT
RF OUTRF OUT
RF OUT 'N' Socket. Connect a matched, pre-tested antenna system
with a return loss of >=14dB to this socket. Ensure all parts of the
feeder and antenna system are rated for 3 or above
8. PO ER
PO ERPO ER
PO ER.
..
. Connect a power lead with an IEC C13 connector (and a 13
amp fuse in the plug or at the distribution panel) to this socket. Two T2
amp (time delay) fuses are fitted within this connector’s Fuse carrier.
9. EARTH.
EARTH.EARTH.
EARTH. Grounding connection point (M4 stud and bolt).
Connect a suitable rated test load to the RF OUPUT socket before
connecting the unit to mains power. IMPORTANT! FAILURE TO DO SO
MAY RESULT IN DAMAGE NOT COVERED BY ARRANTY.
Power-up the unit and reduce the output power to the lowest level.
Using the front panel display and buttons, set the desired transmission
frequency.
The factory will have set the deviation, RDS and pilot injection levels.
They should need no further adjustment. However, if absolutely
necessary, these can be changed as follows (NOT recommended):
ELECTRIC SHOCK AND RF BURN HAZARD! DISCONNECT THE
PO ER BEFORE REMOVING ANY COVERS.
To adjust the deviation level, remove the unit’s top cover and
locate the “DEV” preset trimmer control on the internal PCB.
Using a suitable trimmer tool carefully adjust the control.
To adjust the RDS level, remove the unit’s top cover and locate
the “RDS” preset trimmer control on the internal PCB. Using a
suitable trimmer tool carefully adjust the control.
Installation

To adjust the 19kHz Pilot level, remove the unit’s top cover and
locate the “PILOT” preset trimmer control on the internal PCB.
Using a suitable trimmer tool carefully adjust the control.
Take GREAT CARE not to adjust any other circuit trimmer
controls. Even the slightest adjustment ILL degrade
performance and may cause non-compliance to broadcast
regulations.
Connect Left and Right Audio to the rear panel XLR connectors, and
adjust the source level so that maximum audio peaks register just
below the peak section of the front panel audio level bar graph display.
Use ordinary programme material, rather than test tones.
Once all settings are correct, power down the unit. Disconnect the test
load and connect to the antenna. Power up the unit and increase the
RF Power (using the rear panel RF ADJ control) to the desired level, not
exceeding 1 .
The front panel display shows the, forward power level (  ) reflected
power level (  ) audio input levels (ahead of any audio processing) and
transmission frequency.
Audio levels will be optimised by the Audio Processor, however regular
checks of audio levels entering the transmitter are advised.
Should the RF output fail due to a PLL error in the modulator circuitry,
“ALARM!” will show in place of the forward power reading.
Try resetting the FMTX1, by switching the power off, waiting 15
seconds and then switching the power back on.
Should the reflected RF power be too high, “ALARM!” will show in place
of the reflected power reading.
Switch off the power, and remedy the fault with the antenna (or
its cabling, connectors, etc) then resume power to the FMTX1.
Operation

If, for any reason, transmission of RDS is NOT required, the RDS
encoder can be defeated by holding both UP
UPUP
UP and DO N
DO NDO N
DO N buttons
pressed whilst simultaneously powering-up the FMTX1. This preference
will be stored in non-volatile memory, and will therefore remain
effective during power loss.
To re-enable the RDS, repeat the above procedure. This preference will
be stored in non-volatile memory, and will therefore remain effective
during power loss.

EC Declaration of Conformity to R&TTE Directive 1999/5/EC
EC Declaration of Conformity to R&TTE Directive 1999/5/ECEC Declaration of Conformity to R&TTE Directive 1999/5/EC
EC Declaration of Conformity to R&TTE Directive 1999/5/EC
e, Lucoro Broadcast
Clay Pit Lane
Roecliffe
York
YO51 9FS
hereby take sole responsibility to confirm that the product:
FMTX300 and its variants
(125 , 50 , 1 versions)
(and versions thereof with M and RBRX suffix)
which this declaration refers to, conforms to all applicable
requirements of EU Directive 2014/53/EU and is CE marked
accordingly:
Low Voltage Directive 2014/35/EU:
EN60215:1996 Safety Requirements for
Radio Transmitting Equipment
EMC Directive 2014/30/EU:
EN301489-1 ERM/EMC for Radio Equipment
Specific Conditions for FM Transmitters (Part 11)
Radio Equipment Directive 2014/53/EU:
EN302018-2 Transmitting Equipment for
FM Radio Broadcasting service
The following operation conditions and installation arrangements have
to be presumed:
(i) According to Operating Instruction Manual
(ii) Connected lead lengths of 2 metres or less
M. O’Rorke, Director
September 2020

RF:
RF:RF:
RF:
Frequency range 87.5 to 108.00MHz
Frequency stability Better than ±200Hz
Output power 0.1 – 800m (nominal)
Harmonic & spurious output < -63dBc typical
AM Noise <0.5% @ ±40kHz deviation
THD <0.15%@ ±75KHz deviation
RF output connector ‘N’ type (F)
Monitoring:
Monitoring:Monitoring:
Monitoring:
RF BNC (F) -40dB 50 ohms
MPX BNC (F) 1V P-P 10K ohms
Audio Interface:
Audio Interface:Audio Interface:
Audio Interface:
Audio input level +8dBu for ±75KHz deviation
Audio input impedance 600 Ohms
Audio input connectors XLR (F)
Audio P
Audio PAudio P
Audio Processing
rocessingrocessing
rocessing:
::
:
Type Broadcast AGC, multiband
levelling, clipping
Stereo separation 60dB
19kHz filter Digital FIR
Sampling 56-bit, 48KHz
Dynamic range 98 dB
THD (digital circuits) −90 dB
Controls Factory fixed algorithm
RDS:
RDS:RDS:
RDS:
Groups 0A & 2A (others on request)
Power Supply
Power SupplyPower Supply
Power Supply:
::
:
Input AC 110V to 250V (50/60 Hz)
Consumption (maximum RF output) 9 (230V 50Hz)
Mechanical:
Mechanical:Mechanical:
Mechanical:
Size (mm) 1U 43 (H) x 482 ( ) x 150 (D)
eight 1kg
Temperature 0ºC to +42ºC
Humidity 95% (relative non-condensing)
e reserve the right to alter specifications without notice. E&OE.
Technical Specifications

EEE
EEE EEE
EEE -
--
- aste Electrical and Electronic Equipment
aste Electrical and Electronic Equipmentaste Electrical and Electronic Equipment
aste Electrical and Electronic Equipment
The equipment that you bought has required the extraction and use of
natural resources for its production. It may contain hazardous
substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our
environment and to diminish the pressure on the natural resources,
we encourage you to use the appropriate take-back systems. Those
systems will reuse or recycle most of the materials of your end life
equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling
systems, please contact your local or regional waste administration.
IMPORTANT!
NO REPRESENTATIONS OR ARRANTIES, EITHER EXPRESS OR IMPLIED,
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OF
ANY OTHER NATURE ARE MADE ITH RESPECT TO THIS PRODUCT. Do
not misconstrue any information as our recommendation to use any
product, process, or equipment in conflict with any regulatory authority
or patent.
Ensure compliance with all applicable safety requirements when
installing or using this equipment, and operate in accordance with local
laws governing the use of radio transmission equipment.
No part of this document may be reproduced or transmitted, in any
form, by any means, without prior written consent of the Lucoro
Broadcast.
Lucoro Broadcast shall not be liable for any direct, indirect, incidental,
consequential or other damage or loss alleged in connection with the
supply or use of this product.

The information contained in this document is subject to change
without notice. Lucoro Broadcast makes no warranty of any kind with
respect to this information. Lucoro Broadcast specifically disclaims the
implied warranty of merchantability and fitness for a particular
purpose.
Lucoro Broadcast
Clay Pit Lane
Roecliffe
York
YO51 9FS
Telephone [phone]
Telephone (International) [phone]
Enquiries: [e-mail]