Waveforms Supported
ATSC, ATSC-M/H, CMMB, DTMB, DVB-T, DVB-T2,
DVB-H, DVB-SH(A), DVB-SH(B), DAB, DAB+, T-DMB,
ISDB-T/TB and Proprietary (XM, SIRIUS, etc.)
Frequency Bands
1452 MHz - 1492 MHz
1610 MHz - 1675 MHz
1980 MHz - 2010 MHz
2100 MHz - 2300 MHz)
2500 MHz - 2700 MHz)
(custom frequencies available upon request)
Output Power Level
50W, 100W and 200W (400W optional)
Product Features
• Compact, self-contained cabinet
Forced air cooling system
Modular construction for easy maintenance
Scalable design supporting 1 multiplex with optional hardware upgrade to 2 or 3 multiplexes
Universal platform supports multiple waveforms
Exciter module includes modulator/controller, upconverter, band pass filter, GPS receiver (optional) and DVB-S/S2 receiver (optional)
High performance LDMOS power amplifier
RF overdrive, high VSWR and over-temperature protection
DVB-ASI, IP (based on Pro-MPEG Forum CoP #3), G.703/G.704, SMPTE-310M and DVB-S/S2 input interfaces supported
Linear and Non-linear Digital Pre-correction
Remote control and self monitoring via Web GUI
SNMP for network management
Optional Features
Adaptive Non-linear Pre-correction
Output band pass filter, coupler and RF detectors
UPS allows alarm reporting and remote access for several minutes following a power outage
ATSC, ATSC-M/H, CMMB, DTMB, DVB-T, DVB-T2,
DVB-H, DVB-SH(A), DVB-SH(B), DAB, DAB+, T-DMB,
ISDB-T/TB and Proprietary (XM, SIRIUS, etc.)
Frequency Bands
1452 MHz - 1492 MHz
1610 MHz - 1675 MHz
1980 MHz - 2010 MHz
2100 MHz - 2300 MHz)
2500 MHz - 2700 MHz)
(custom frequencies available upon request)
Output Power Level
50W, 100W and 200W (400W optional)
Product Features
• Compact, self-contained cabinet
Forced air cooling system
Modular construction for easy maintenance
Scalable design supporting 1 multiplex with optional hardware upgrade to 2 or 3 multiplexes
Universal platform supports multiple waveforms
Exciter module includes modulator/controller, upconverter, band pass filter, GPS receiver (optional) and DVB-S/S2 receiver (optional)
High performance LDMOS power amplifier
RF overdrive, high VSWR and over-temperature protection
DVB-ASI, IP (based on Pro-MPEG Forum CoP #3), G.703/G.704, SMPTE-310M and DVB-S/S2 input interfaces supported
Linear and Non-linear Digital Pre-correction
Remote control and self monitoring via Web GUI
SNMP for network management
Optional Features
Adaptive Non-linear Pre-correction
Output band pass filter, coupler and RF detectors
UPS allows alarm reporting and remote access for several minutes following a power outage
Indoor Digital Mobile Broadcast Terrestrial Repeater
© 2004-2010 Unique Broadband Systems Ltd. All Rights Reserved.
Standard Terms and Conditions
Standard Terms and Conditions
ISO 9001:2008
Registered Company
Registered Company
Webmaster: felixs@uniquesys.com
China
Canada
Spain
France
Russia
Europe
Italy
Transmitter/Repeater Overview
The Indoor Transmitter/Repeater cabinet includes an Exciter and
High Power Amplifier (HPA), with an optional Bandpass Filter,
Coupler and RF Detectors. In addition to a Modulator, the Exciter
system includes an internal Upconverter, Controller, optional
GPS Receiver and optional DVB-S/S2 Receiver.
The Universal Exciter can receive a structured MPEG-2 TS,
CMMB multiplex stream or ISDB-T/TB multiplexed TS on its ASI
inputs. G.703/G.704 inputs are used in DAB mode and accept
either NA or NI signals. Optionally, two serial SMPTE-310M
inputs can be supplied. The Exciter is also accepts an IP
encapsulated MPEG-2 structured Transport Stream on the RJ-45
Ethernet port. The IP input is protected using an MPEG PRO
CoP #3 FEC protocol.
The Exciter modulator board converts the digital ASI, NA, NI or IP
input stream into a digital waveform and creates a single analog
RF output suitable for amplification in the Power Amplifier (PA).
The coding and modulation of the data depends on the selected
waveform.
The System Controller supports transmitter/repeater operation,
configuration, management and status reporting. The site control
includes power up, power down, RF control processes, control
commands for status requests and operating parameters, etc.
The transmitter/repeater identity (name, password, local IP
address, SNMP, etc.) can be configured remotely or locally.
Remote upgrade of the transmitter/repeater software is
supported.
The Exciter supports a web interface (Web GUI) for its user
interface and is responsible for software and configuration
management. Remote control of the transmitter/repeater is
typically managed via an SNMP agent.
The GPS Receiver, located in the exciter chassis, supplies 10
MHz and 1PPS for synchronization purposes.
The DVB-S/S2 receiver demodulates an incoming satellite signal
and provides an output ASI signal.
The PA is designed to operate as a final amplification stage for
the indoor transmitter/repeater system. It amplifies the Exciter
output signal to a power level of 50, 100 or 200 Watts, while
maintaining acceptable output emission levels.
The PA architecture is based on a solid state design operating in
the Class A/AB linear mode and is fully protected against input
overdrive, overheating and output load VSWR conditions. The
protection circuits are all self-correcting, allowing restoration of
the amplifier to the normal operational state upon removal of the
fault condition.
The Output Bandpass Filter is constructed using high
performance dielectric resonator (DR) coupled cavities. The DR
design minimizes the size and weight of the filter, while
maintaining low insertion loss and providing high rejection of outof-
band components.
The Output Coupler provides sample ports for output signal
level control and monitoring. It employs coaxial air line design for
low losses and high directivity.
The RF Detectors provide
accurate forward and reverse RMS power level measurements
from the Output Coupler. The power level measurement is
waveform and temperature independent.
Digital Linear and Non-linear Pre-correctors (pre-distorters)
significantly improve the performance of the Power Amplifier. The
Non-linear pre-corrector compensates for the HPA non-linearity
and is able to provide separate adjustment for the low and high
frequency shoulders of the wide channel spectrum. The Linear
pre-corrector compensates for the the group delay created by an
output filter.
The Adaptive Non-linear Pre-corrector is a superior predistortion
solution that compensates for RF Power Amplifier nonlinearities
including AM/AM and AM/PM distortion and protects
against IMD and spectral regrowth while maximizing EVM
performance. The complex signal processing is done in the RF
domain and supports a fully adaptive operation: the feedback
signal (HPA output) is compared to the exciters RF output signal
(HPA input) in order to optimize the correction which will improve
the shoulders of the RF output.
An optional UPS (80 Watt / 450 VA) is intended to supply
backup power to the Exciter. This will ensure site monitoring will
continue during a power outage as well as signal generation to
ensure a fast recovery time once power is restored. The HPA
includes redundant power supplies.
The Indoor Transmitter/Repeater cabinet includes an Exciter and
High Power Amplifier (HPA), with an optional Bandpass Filter,
Coupler and RF Detectors. In addition to a Modulator, the Exciter
system includes an internal Upconverter, Controller, optional
GPS Receiver and optional DVB-S/S2 Receiver.
The Universal Exciter can receive a structured MPEG-2 TS,
CMMB multiplex stream or ISDB-T/TB multiplexed TS on its ASI
inputs. G.703/G.704 inputs are used in DAB mode and accept
either NA or NI signals. Optionally, two serial SMPTE-310M
inputs can be supplied. The Exciter is also accepts an IP
encapsulated MPEG-2 structured Transport Stream on the RJ-45
Ethernet port. The IP input is protected using an MPEG PRO
CoP #3 FEC protocol.
The Exciter modulator board converts the digital ASI, NA, NI or IP
input stream into a digital waveform and creates a single analog
RF output suitable for amplification in the Power Amplifier (PA).
The coding and modulation of the data depends on the selected
waveform.
The System Controller supports transmitter/repeater operation,
configuration, management and status reporting. The site control
includes power up, power down, RF control processes, control
commands for status requests and operating parameters, etc.
The transmitter/repeater identity (name, password, local IP
address, SNMP, etc.) can be configured remotely or locally.
Remote upgrade of the transmitter/repeater software is
supported.
The Exciter supports a web interface (Web GUI) for its user
interface and is responsible for software and configuration
management. Remote control of the transmitter/repeater is
typically managed via an SNMP agent.
The GPS Receiver, located in the exciter chassis, supplies 10
MHz and 1PPS for synchronization purposes.
The DVB-S/S2 receiver demodulates an incoming satellite signal
and provides an output ASI signal.
The PA is designed to operate as a final amplification stage for
the indoor transmitter/repeater system. It amplifies the Exciter
output signal to a power level of 50, 100 or 200 Watts, while
maintaining acceptable output emission levels.
The PA architecture is based on a solid state design operating in
the Class A/AB linear mode and is fully protected against input
overdrive, overheating and output load VSWR conditions. The
protection circuits are all self-correcting, allowing restoration of
the amplifier to the normal operational state upon removal of the
fault condition.
The Output Bandpass Filter is constructed using high
performance dielectric resonator (DR) coupled cavities. The DR
design minimizes the size and weight of the filter, while
maintaining low insertion loss and providing high rejection of outof-
band components.
The Output Coupler provides sample ports for output signal
level control and monitoring. It employs coaxial air line design for
low losses and high directivity.
The RF Detectors provide
accurate forward and reverse RMS power level measurements
from the Output Coupler. The power level measurement is
waveform and temperature independent.
Digital Linear and Non-linear Pre-correctors (pre-distorters)
significantly improve the performance of the Power Amplifier. The
Non-linear pre-corrector compensates for the HPA non-linearity
and is able to provide separate adjustment for the low and high
frequency shoulders of the wide channel spectrum. The Linear
pre-corrector compensates for the the group delay created by an
output filter.
The Adaptive Non-linear Pre-corrector is a superior predistortion
solution that compensates for RF Power Amplifier nonlinearities
including AM/AM and AM/PM distortion and protects
against IMD and spectral regrowth while maximizing EVM
performance. The complex signal processing is done in the RF
domain and supports a fully adaptive operation: the feedback
signal (HPA output) is compared to the exciters RF output signal
(HPA input) in order to optimize the correction which will improve
the shoulders of the RF output.
An optional UPS (80 Watt / 450 VA) is intended to supply
backup power to the Exciter. This will ensure site monitoring will
continue during a power outage as well as signal generation to
ensure a fast recovery time once power is restored. The HPA
includes redundant power supplies.