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, outdoor, self-contained unit
• Environmentally protected light-weight cabinet
• Thermal electric and forced air cooling system witheasily replaceable air filter
• Internal heater
• Front and rear hinged doors for access to various test ports
• Protected AC output for powering external test equipment
• 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

Transmitter/Repeater Overview

The Outdoor Transmitter/Repeater is a compact, outdoor, weatherproof cabinet that includes an Exciter, High Power
Amplifier (HPA) and Power Distribution unit, 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 exciter’s 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 Power Distribution Unit (PDU), mounted on the bottom of the cabinet, receives ~ 220 VAC and distributes the required
power to each transmitter/repeater sub-module. The PDU includes 7 circuit breakers, 2 surge suppressors, 2 RFI power line
filters, 2 latching relays, 40 two-stage feed-through terminal blocks and 1 double grounding terminal.

The Outdoor Cabinet is weatherproof and made out of lightweight aluminum. It includes a heater, thermal electric cooler and
fans for cooling. Front and rear hinged doors allow for easy access to repeater sub-modules.
The cabinet is divided into lower and upper compartments. The lower compartment air flow is provided by the Exciter fans while
the upper compartment air flow is provided by rear door and HPA heat sink fans.