DVB-SH Modulator
Model: DVU 5000
Modulator Features
· 50 MHz to 1GHz RF Output
· RF Output Power Level -10 dBm to 0 dBm
· SFN and MFN support
· Linear and non-linear pre-correction
· Superior MER performance
· GbE Transport Stream Input based on Pro-MPEG Forum CoP #3
· Web GUI, SNMP and Telnet remote control and software upgrade
Modulator Supported Waveforms
· ATSC compliant with A/53, A/54, A/64 and SMPTE-310M
· ISDB-T/TB compliant with ARIB STD-B31, ARIB STD-B10,
SBTVD N01, SBTVD N03 and ABNT NBR 15601
· DVB-T2 compliant with EN 302 755 and TS 102 773
· DVB-T/H compliant with ETSI DVB standards
· DVB-SH compliant with ETSI DVB standards
· DAB, DAB+ and T-DMB compliant with ETSI DAB standards and EU147
· CMMB compliant with GY/T 220.1-2006 and 220.2-2006
· DTMB compliant with GB20600-2006 and GY/T 229.1-2008 (SIP)
Optional Modulator Features
· Internal GPS Receiver
· Internal Power Amplifier with 0 dBm to +10 dBm output
· Adaptive Pre-correction
Modulator Overview
The UBS Universal Modulator Series utilizes the innovative UBS Universal Waveform engine, supporting all world standards for mobile and terrestrial digital broadcasts. The Universal Modulator can be software configured to support one, two or all the waveforms listed above. The user can easily switch from one waveform to another through software selection. UBS modulators can also be upgraded in the field as standards evolve. This open architecture design enables carriers to take advantage of a proven, robust platform, while designing networks to meet current and future broadcast standards. This series incorporates all of UBS high performance signal processing stages including integrated linear and non-linear pre-correctors. Full remote management and control as well as remote firmware and waveform upgrades are provided.
Modulator Application
The core function of the Universal Modulator is to modulate an input stream in accordance with the rules for channel coding and modulation defined in the specific standards for each waveform.
Modulator Signal Inputs
The DVU 5000 is provided with two serial DVB-ASI inputs and two serial G.703/G.704 inputs. The DVB-ASI inputs accept a MPEG-2 TS, a CMMB multiplex stream or an ISDB-T/TB multiplexed TS. The 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 installed. The DVU 5000 can also be equipped with a GbE Transport Stream input (based on Pro-MEG CoP #3) only when a DVB-T/H waveform is selected.
Modulator RF Output Signal
The RF output is generated by a high performance RF converter, which covers the entire frequency range from 50 MHz to 1 GHz in steps of just 1 Hz. The output level is adjustable from -10 to 0 dBm (optionally from 0 to +10 dBm) in 0.1 dB steps. The user can set the polarity of the spectrum to Inverted or Non-inverted as required.
In DAB mode, the RF output covers Band-III (channels 5A-13F).
Modulator IF Output
Based on the selected waveform, the DVU 5000 provides an output channel on a user defined frequency between 35 MHz and 46 MHz (Optional fixed IF frequency from 5 MHz to 80 MHz). Inverted/non-inverted spectrum is selected through the control interface. The IF Output can be directly interfaced to a wide range of transmitters and frequency converters.
Modulato SFN Mode
This mode provides the DVU 5000 with market leading SFN performance, with respect to basic timing accuracy and extent of the local delay offset range. The user can select either the SFN or MFN mode via the control interfaces. The primary reference clock is the external 10 MHz signal, which is applied to the 10 MHz input from a GPS. If the external 10 MHz signal is missing, the system will operate synchronized to its internal 10 MHz oscillator.
Modulator Web Interface
This feature allows remote control of the DVU 5000 via Ethernet (TCP/IP). The system is based on a Web server mounted inside the DVU 5000. The Web pages stored on the Web server are designed as a complete graphical user interface (GUI) for testing the status and setting the parameters of the modulator. The Web Interface concept is popular because remote control with this system only requires a standard PC with a network interface card (NIC) and a Web browser (Microsoft Explorer 6.0+).
Modulator SNMP Client
This feature allows remote control of the DVU 5000 in accordance with the SNMP protocol (Get, Set and SNMP traps). This remote control feature is intended for systems solutions where it is desired to integrate the control of a range of SNMP compliant equipment in a common management system.
Digital Linear and Non-linear Pre-corrector
This is recommended in order to maximize the performance of the transmitter in which the modulator is installed.
• The Non-linear Pre-corrector balances out gain and phase non-linearity in the transmitter RF power amplifier,
thereby significantly reducing the in-band and out of band intermodulation products. Optimizing the transmitter’s
performance will extend the coverage area. The performance requirement of the transmitter output filter, which is
used to suppress radiation in adjacent channels below a maximum allowed level, will also be eased.
• The Linear Pre-corrector balances out level and group delay variations that are seen across the channel bandwidth
and are caused by the transmitter mask filter and/or channel combiner filters. The linear optimization of the
transmitter’s radiated signal allows the ISDBT receiver’s channel equalizer to focus all of its correction capacity on
level and group delay errors originating from the actual transmission path.
The characteristics of the linear and non-linear pre-correction curves are set by means of an easy to use and highly intuitive graphical user interface, the UBS Corrector GUI software package (Windows compatible).
GPS Receiver (optional)
Optionally, the DVU 5000 can be equipped with an internal GPS unit. In this case, the frequency references for the modulator and upconverter are derived from the internal GPS. The 10MHz and 1PPS connectors on the rear panel become monitoring outputs (high impedance).
Power Amplifier (optional)
Optionally, the DVU 5000 can be equipped with a 10dB amplifier installed at the output of the Upconverter. With the amplifier installed, the RF output level can be set from 0 dBm to +10 dBm.
Modulator Features
· 50 MHz to 1GHz RF Output
· RF Output Power Level -10 dBm to 0 dBm
· SFN and MFN support
· Linear and non-linear pre-correction
· Superior MER performance
· GbE Transport Stream Input based on Pro-MPEG Forum CoP #3
· Web GUI, SNMP and Telnet remote control and software upgrade
Modulator Supported Waveforms
· ATSC compliant with A/53, A/54, A/64 and SMPTE-310M
· ISDB-T/TB compliant with ARIB STD-B31, ARIB STD-B10,
SBTVD N01, SBTVD N03 and ABNT NBR 15601
· DVB-T2 compliant with EN 302 755 and TS 102 773
· DVB-T/H compliant with ETSI DVB standards
· DVB-SH compliant with ETSI DVB standards
· DAB, DAB+ and T-DMB compliant with ETSI DAB standards and EU147
· CMMB compliant with GY/T 220.1-2006 and 220.2-2006
· DTMB compliant with GB20600-2006 and GY/T 229.1-2008 (SIP)
Optional Modulator Features
· Internal GPS Receiver
· Internal Power Amplifier with 0 dBm to +10 dBm output
· Adaptive Pre-correction
Modulator Overview
The UBS Universal Modulator Series utilizes the innovative UBS Universal Waveform engine, supporting all world standards for mobile and terrestrial digital broadcasts. The Universal Modulator can be software configured to support one, two or all the waveforms listed above. The user can easily switch from one waveform to another through software selection. UBS modulators can also be upgraded in the field as standards evolve. This open architecture design enables carriers to take advantage of a proven, robust platform, while designing networks to meet current and future broadcast standards. This series incorporates all of UBS high performance signal processing stages including integrated linear and non-linear pre-correctors. Full remote management and control as well as remote firmware and waveform upgrades are provided.
Modulator Application
The core function of the Universal Modulator is to modulate an input stream in accordance with the rules for channel coding and modulation defined in the specific standards for each waveform.
Modulator Signal Inputs
The DVU 5000 is provided with two serial DVB-ASI inputs and two serial G.703/G.704 inputs. The DVB-ASI inputs accept a MPEG-2 TS, a CMMB multiplex stream or an ISDB-T/TB multiplexed TS. The 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 installed. The DVU 5000 can also be equipped with a GbE Transport Stream input (based on Pro-MEG CoP #3) only when a DVB-T/H waveform is selected.
Modulator RF Output Signal
The RF output is generated by a high performance RF converter, which covers the entire frequency range from 50 MHz to 1 GHz in steps of just 1 Hz. The output level is adjustable from -10 to 0 dBm (optionally from 0 to +10 dBm) in 0.1 dB steps. The user can set the polarity of the spectrum to Inverted or Non-inverted as required.
In DAB mode, the RF output covers Band-III (channels 5A-13F).
Modulator IF Output
Based on the selected waveform, the DVU 5000 provides an output channel on a user defined frequency between 35 MHz and 46 MHz (Optional fixed IF frequency from 5 MHz to 80 MHz). Inverted/non-inverted spectrum is selected through the control interface. The IF Output can be directly interfaced to a wide range of transmitters and frequency converters.
Modulato SFN Mode
This mode provides the DVU 5000 with market leading SFN performance, with respect to basic timing accuracy and extent of the local delay offset range. The user can select either the SFN or MFN mode via the control interfaces. The primary reference clock is the external 10 MHz signal, which is applied to the 10 MHz input from a GPS. If the external 10 MHz signal is missing, the system will operate synchronized to its internal 10 MHz oscillator.
Modulator Web Interface
This feature allows remote control of the DVU 5000 via Ethernet (TCP/IP). The system is based on a Web server mounted inside the DVU 5000. The Web pages stored on the Web server are designed as a complete graphical user interface (GUI) for testing the status and setting the parameters of the modulator. The Web Interface concept is popular because remote control with this system only requires a standard PC with a network interface card (NIC) and a Web browser (Microsoft Explorer 6.0+).
Modulator SNMP Client
This feature allows remote control of the DVU 5000 in accordance with the SNMP protocol (Get, Set and SNMP traps). This remote control feature is intended for systems solutions where it is desired to integrate the control of a range of SNMP compliant equipment in a common management system.
Digital Linear and Non-linear Pre-corrector
This is recommended in order to maximize the performance of the transmitter in which the modulator is installed.
• The Non-linear Pre-corrector balances out gain and phase non-linearity in the transmitter RF power amplifier,
thereby significantly reducing the in-band and out of band intermodulation products. Optimizing the transmitter’s
performance will extend the coverage area. The performance requirement of the transmitter output filter, which is
used to suppress radiation in adjacent channels below a maximum allowed level, will also be eased.
• The Linear Pre-corrector balances out level and group delay variations that are seen across the channel bandwidth
and are caused by the transmitter mask filter and/or channel combiner filters. The linear optimization of the
transmitter’s radiated signal allows the ISDBT receiver’s channel equalizer to focus all of its correction capacity on
level and group delay errors originating from the actual transmission path.
The characteristics of the linear and non-linear pre-correction curves are set by means of an easy to use and highly intuitive graphical user interface, the UBS Corrector GUI software package (Windows compatible).
GPS Receiver (optional)
Optionally, the DVU 5000 can be equipped with an internal GPS unit. In this case, the frequency references for the modulator and upconverter are derived from the internal GPS. The 10MHz and 1PPS connectors on the rear panel become monitoring outputs (high impedance).
Power Amplifier (optional)
Optionally, the DVU 5000 can be equipped with a 10dB amplifier installed at the output of the Upconverter. With the amplifier installed, the RF output level can be set from 0 dBm to +10 dBm.
DVB Products
mobile and terrestrial digital broadcasting
