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The acronym DVB-SH correctly expands to 'Digital Voice Broadcasting - Satellite for Handhelds'.
Answer: False
Explanation: The standard DVB-SH actually stands for 'Digital Video Broadcasting - Satellite services to Handhelds,' not 'Digital Voice Broadcasting'.
The principal objective of the DVB-SH standard was the transmission of IP-based media content and data to mobile handheld devices.
Answer: True
Explanation: As stated in the supporting documentation, DVB-SH was engineered as a physical layer standard specifically for the delivery of IP-based media content and data to handheld devices.
The DVB Project officially published the DVB-SH standard in February of 2007.
Answer: True
Explanation: The DVB Project, the consortium responsible for developing digital television broadcasting standards, released the DVB-SH standard in February 2007.
The DVB-SH standard represents a completely novel system, entirely independent of the DVB-H standard.
Answer: False
Explanation: DVB-SH is not unrelated; it serves as a complementary and improved iteration upon the DVB-H physical layer standard, sharing foundational elements like DVB IP Datacast (IPDC).
What is the complete and accurate designation of the DVB-SH standard?
Answer: Digital Video Broadcasting - Satellite services to Handhelds
Explanation: The standard DVB-SH is formally known as 'Digital Video Broadcasting - Satellite services to Handhelds,' as detailed in its specifications.
What was the primary intended use for the DVB-SH standard?
Answer: Delivering IP-based media and data to handheld devices.
Explanation: The core purpose of DVB-SH was to facilitate the delivery of IP-based media content and data specifically to handheld devices.
In which year was the DVB-SH standard officially published?
Answer: 2007
Explanation: The DVB Project officially published the DVB-SH standard in February of 2007.
How does DVB-SH relate technically to the DVB-H standard?
Answer: It complements and improves upon DVB-H, sharing the DVB IP Datacast (IPDC) foundation.
Explanation: DVB-SH is not unrelated; it serves as a complementary and improved iteration upon the DVB-H physical layer standard, sharing foundational elements like DVB IP Datacast (IPDC).
DVB-SH utilizes only a terrestrial physical layer for signal transmission.
Answer: False
Explanation: DVB-SH employs a hybrid approach, utilizing both terrestrial and satellite physical layers to enhance system configuration options.
Within the DVB-SH framework, the SH-A architecture employs Orthogonal Frequency-Division Multiplexing (OFDM) for both its terrestrial and satellite transmission components.
Answer: True
Explanation: The SH-A architecture is characterized by its utilization of OFDM for both terrestrial and satellite signal transmission, facilitating network configurations such as Single-Frequency Networks (SFNs).
Within the SH-B architecture of DVB-SH, the satellite component utilizes OFDM, while the terrestrial component employs TDM.
Answer: False
Explanation: The SH-B architecture actually employs OFDM for its terrestrial component and TDM for its satellite component, contrary to the statement.
Time-Division Multiplexing (TDM) is utilized in the SH-B architecture to enable multiple signals to share a single communication channel by dividing temporal slots.
Answer: True
Explanation: TDM, employed in the SH-B architecture for the satellite component, facilitates the sharing of a communication channel by segmenting access into distinct time slots.
The SH-A architecture allows for Single-Frequency Networks (SFNs) because both its terrestrial and satellite components utilize OFDM.
Answer: True
Explanation: The use of OFDM for both terrestrial and satellite components in the SH-A architecture enables the creation of Single-Frequency Networks (SFNs), enhancing spectral efficiency.
Single-Frequency Networks (SFNs) can be implemented within the SH-B architecture.
Answer: False
Explanation: SFNs are not feasible in the SH-B architecture due to the differing modulation schemes (OFDM terrestrially, TDM satellitally) and the requirement for distinct frequencies, which prevents synchronized broadcasting necessary for SFNs.
Which two physical layers does DVB-SH utilize?
Answer: Terrestrial and Satellite
Explanation: DVB-SH employs a hybrid approach, utilizing both terrestrial and satellite physical layers to enhance system configuration options.
What is the fundamental distinction between the SH-A and SH-B architectures within the DVB-SH standard?
Answer: SH-A utilizes OFDM for both terrestrial and satellite components; SH-B employs OFDM for terrestrial and TDM for satellite.
Explanation: The primary differentiator lies in the modulation schemes employed: SH-A uses OFDM for both terrestrial and satellite links, while SH-B uses OFDM terrestrially and TDM for its satellite component.
Why can't Single-Frequency Networks (SFNs) be created in the SH-B architecture?
Answer: Because the terrestrial and satellite components use different modulation schemes (OFDM/TDM) and must broadcast on different frequencies.
Explanation: SFNs are not feasible in the SH-B architecture due to the differing modulation schemes (OFDM terrestrially, TDM satellitally) and the requirement for distinct frequencies, which prevents synchronized broadcasting necessary for SFNs.
What is the principal modulation difference concerning the satellite components of the SH-A versus SH-B architectures within DVB-SH?
Answer: SH-A utilizes OFDM, whereas SH-B employs TDM.
Explanation: The key distinction in modulation for the satellite components is that SH-A uses OFDM, while SH-B employs TDM.
The DVB-SH standard was engineered for operation exclusively within frequency bands exceeding 3 GHz.
Answer: False
Explanation: Contrary to the statement, DVB-SH was designed for frequencies *below* 3 GHz, encompassing bands such as UHF, L-band, and S-band.
OFDM (Orthogonal Frequency-Division Multiplexing) is a modulation technique that exacerbates the multipath problem in signal reception.
Answer: False
Explanation: OFDM is specifically designed to mitigate the multipath problem, a common issue in signal reception, thereby improving signal integrity.
The 64QAM modulation scheme, present in DVB-H, was deliberately omitted in DVB-SH.
Answer: True
Explanation: The 64QAM modulation scheme, which was part of the DVB-H standard, was specifically omitted in the DVB-SH specification.
Field trials indicated that DVB-SH required a higher signal requirement compared to DVB-H in UHF frequencies.
Answer: False
Explanation: Field trials demonstrated that DVB-SH exhibited improved signal requirements compared to DVB-H in UHF frequencies, indicating enhanced performance.
DVB-SH in the S-band was considered less effective than DVB-H in Europe due to higher deployment costs.
Answer: False
Explanation: DVB-SH in the S-band was perceived as potentially offering better performance than DVB-H, possibly leading to lower deployment costs, rather than being less effective.
DVB-SH incorporates Turbo coding for Forward Error Correction (FEC).
Answer: True
Explanation: The DVB-SH standard utilizes Turbo coding as its method for Forward Error Correction (FEC), contributing to signal robustness.
Support for antenna diversity in DVB-SH terminals represented a technological regression.
Answer: False
Explanation: The inclusion of antenna diversity support in DVB-SH terminals is an enhancement designed to improve signal reliability, not a technological regression.
Within what approximate frequency spectrum was the DVB-SH standard designed to operate?
Answer: Below 3 GHz
Explanation: The DVB-SH standard was architected for operation in frequency bands below 3 GHz, which includes the UHF, L-band, and S-band ranges.
What is a key benefit of using OFDM in DVB-SH, as mentioned in the source?
Answer: It helps solve the multipath problem.
Explanation: OFDM is specifically designed to mitigate the multipath problem, a common issue in signal reception, thereby improving signal integrity.
Identify the feature that is explicitly *not* enumerated as a significant enhancement of DVB-SH relative to DVB-H.
Answer: Inclusion of the 64QAM modulation scheme
Explanation: The 64QAM modulation scheme, present in DVB-H, was deliberately omitted in DVB-SH; other listed features represent key enhancements.
What magnitude of radio performance improvement was documented for DVB-SH compared to DVB-H when operating in UHF frequencies?
Answer: An improvement of at least 5.5 dB.
Explanation: Field trials indicated a notable radio improvement for DVB-SH over DVB-H in UHF frequencies, quantified as at least 5.5 dB, leading to enhanced coverage and penetration.
Identify the specific modulation scheme that was excluded from DVB-SH when compared to its predecessor, DVB-H.
Answer: 64QAM
Explanation: The 64QAM modulation scheme, which was part of the DVB-H standard, was specifically omitted in the DVB-SH specification.
What is the primary significance of DVB-SH's capability to operate within frequency bands below 3 GHz?
Answer: It enables enhanced deployment flexibility and leverages frequency bands appropriate for mobile services.
Explanation: Supporting frequencies below 3 GHz provides DVB-SH with significant deployment flexibility and utilizes bands well-suited for the characteristics of mobile services and handheld devices.
Both the DVB-SH and DVB-H standards attained considerable commercial success and widespread adoption.
Answer: False
Explanation: The DVB Project acknowledged in late 2016 that both DVB-SH and DVB-H were ultimately commercial failures, contrary to achieving significant success.
NXP Semiconductors was among the entities developing DVB-SH chipsets.
Answer: True
Explanation: NXP Semiconductors is explicitly mentioned as one of the companies involved in the development of DVB-SH chipsets.
The initial availability of the first DVB-SH chipsets was projected for late 2009.
Answer: False
Explanation: Initial specifications indicated that the first DVB-SH chipsets were expected to be available in early 2008, not late 2009.
The French Agence de l'innovation industrielle financed the TVMSL project, which was related to DVB-SH development.
Answer: True
Explanation: The TVMSL project, instrumental in advancing DVB-SH, received financial backing from the French Agence de l'innovation industrielle.
ICO, a United States satellite operator, announced plans in 2007 for a nationwide DVB-SH deployment.
Answer: True
Explanation: ICO, a major US satellite operator, declared its intention to implement a nationwide DVB-SH network in 2007, collaborating with Alcatel-Lucent and Expway.
The ICO G1 satellite, launched in 2008, was the world's first satellite in orbit equipped with DVB-SH technology.
Answer: True
Explanation: The ICO G1 satellite, launched in April 2008, held the distinction of being the world's first satellite in orbit to carry DVB-SH technology.
The Solaris Mobile payload on the Eutelsat W2A satellite successfully entered service in May 2009.
Answer: False
Explanation: The Solaris Mobile payload experienced an anomaly that prevented it from entering service as planned in May 2009.
Inmarsat's EuropaSat program aims to deliver mobile multimedia broadcast and broadband telecommunications services.
Answer: True
Explanation: The EuropaSat program by Inmarsat is designed to deliver advanced services, including mobile multimedia broadcasts and two-way mobile broadband telecommunications.
As of February 2008, DVB-SH trials were confirmed to be underway in South Africa and India.
Answer: True
Explanation: By February 2008, DVB-SH trials were confirmed to be underway across a broad international spectrum, including numerous locations in Asia, Europe, and North America, encompassing South Africa and India.
Alcatel-Lucent collaborated with SFR on the first DVB-SH trial in France.
Answer: True
Explanation: SFR and Alcatel-Lucent partnered to deploy a DVB-SH trial in France, as documented in the project's history.
The initial DVB-SH trial in Spain was conducted by a consortium comprising 3 Italia, RAI, and Alcatel-Lucent.
Answer: False
Explanation: The documented first DVB-SH trial involving 3 Italia, RAI, and Alcatel-Lucent took place in Italy, not Spain.
Dish Network and Alcatel-Lucent conducted the first DVB-SH trial in the United States.
Answer: True
Explanation: Dish Network and Alcatel-Lucent collaborated to execute the first DVB-SH trial within the United States.
What was the acknowledged commercial result of DVB-SH and DVB-H?
Answer: They were recognized as commercial failures.
Explanation: The DVB Project acknowledged in late 2016 that both DVB-SH and DVB-H were ultimately commercial failures, contrary to achieving significant success.
Identify the companies cited for developing DVB-SH chipsets that were also compatible with DVB-H.
Answer: DiBcom and NXP Semiconductors
Explanation: DiBcom and NXP Semiconductors are explicitly mentioned as companies engaged in the development of DVB-SH chipsets, designed for compatibility with DVB-H.
What was the projected timeline for the initial availability of DVB-SH chipsets?
Answer: Early 2008
Explanation: According to initial specifications and industry projections, the first DVB-SH chipsets were anticipated to become available in early 2008.
Identify the French governmental agency responsible for financing the TVMSL project concerning DVB-SH.
Answer: Agence de l'innovation industrielle
Explanation: The TVMSL project, which advanced the DVB-SH standard, received funding from the French Agence de l'innovation industrielle.
Which United States-based satellite operator declared intentions in 2007 to implement a nationwide DVB-SH network, collaborating with Alcatel-Lucent and Expway?
Answer: ICO
Explanation: ICO, a prominent satellite operator in the US, announced plans for a nationwide DVB-SH deployment in 2007, in collaboration with Alcatel-Lucent and Expway.
What distinguished the ICO G1 satellite, launched on April 14, 2008?
Answer: It represented the world's first satellite in orbit equipped with DVB-SH technology.
Explanation: The ICO G1 satellite, launched in April 2008, held the distinction of being the world's first satellite in orbit to carry DVB-SH technology.
Which geographical region was the intended coverage area for the Solaris Mobile payload aboard the Eutelsat W2A satellite?
Answer: Western Europe
Explanation: The Solaris Mobile payload, a joint venture between Eutelsat and SES, was designed to provide coverage across Western Europe.
What operational issue impacted the Solaris Mobile payload situated on the Eutelsat W2A satellite?
Answer: An anomaly occurred, preventing the payload from entering service as scheduled.
Explanation: The Solaris Mobile payload experienced an anomaly that prevented it from entering service as planned in May 2009, despite technical findings suggesting partial functionality.
What range of services is Inmarsat's EuropaSat program intended to provide?
Answer: Mobile multimedia broadcast and two-way mobile broadband telecommunications.
Explanation: The EuropaSat program by Inmarsat is designed to deliver advanced services, including mobile multimedia broadcasts and two-way mobile broadband telecommunications.
As of February 2008, in which geographical scope were DVB-H/SH trials confirmed to be actively conducted?
Answer: Across multiple continents, encompassing Asia, Europe, and North America
Explanation: By February 2008, DVB-H/SH trials were confirmed to be underway across a broad international spectrum, including numerous locations in Asia, Europe, and North America.
Identify the entities that collaborated to conduct the inaugural DVB-SH trial in Italy.
Answer: 3 Italia, RAI, and Alcatel-Lucent
Explanation: The initial DVB-SH trial in Italy was a collaborative effort involving 3 Italia, RAI, and Alcatel-Lucent.