Lucoro Broadcast TX-FMBR1 Technical Manual
Page 10
4. Installation
4.1 Connections
Connect a matched, pre-tested antenna system to the RF OUPUT socket on the rear
of the unit.
Connect an unba8dB multiplex feed to the MPX IN BNC socket. A buffered
‘Loop-through’ output is provided by the MPX OUT BNC.
Connect a 50 Ohm antenna system for reception of FM parent service.
If desired, connect a 9-way Male plug to the CONTROL I/O connector in order to
monitor and control the unit remotely.
If desired, connect a 9-way Male plug to the RS485 connector in order to monitor and
control the unit remotely.
Connect the transmitter to a suitable power source using the supplied IEC connector
power lead. Ensure that the appliance is protected by a 3A fuse either at the supply
plug or at the distribution panel.
4.2 Switching On
Ensure a suitable load is connected to the RF OUPUT socket before connecting the
unit to mains power. IMPORTANT! FAILURE TO DO SO MAY RESULT IN
DAMAGE NOT COVERED BY WARRANTY.
Upon power-up, the display will show the unit's firmware release number.
4.3 Operation
In ‘Receiver Mode’, the unit will rebroadcast FM signals received via its integral tuner.
The display will show the signal strength icon and the received signal level. If no
signal is present on the selected frequency, the RX alarm will be present on the
CONTROL I/O of the rear 9-way ‘D’ I/O CONTROL connector (pin 4), or the relevant
notification is sent via the RS485 bus (if used).
When the ‘External (break-in) Mode’ is activated (by applying a logic or via an RS485
data command), the display will show the audio input icon and ‘MPX’
The display also shows the Forward RF Power and Reflected RF Power in milliwatts,
the Receiver and Transmitter frequencies, plus the RS485 address. Like any
transmission equipment, all displayed measurements are intended only as a guide. If
accurate set-up is required (e.g. for regulatory authority compliance), external
IMPORTANT! For Broadcast Regulator compliance, it is essential that audio
connected to the MPX IN BNC socket has been correctly conditioned by a
Broadcast Audio Processor, to remove any content over 15KHz in frequency, and
level that would exceed
±
75kHz in deviation.
