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This paper evaluates the reliability of The International Radio Consultative Co mmittee (CCIR) curves in Nigeria for television signal broadcast planning by determining the practical broadcast coverage of seven television stations in Lagos State to identify the reach of their transmission and determine the geographical zones where frequency allocat...
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The study investigated information needs, information sources, and information seeking behaviour of agricultural extension workers in Osogbo zone of Osun State, Nigeria. It also focused on the factors influencing the choice of information sources and problems encountered when sourcing for information. A structured questionnaire was used to collect...
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... The Davidson model is a variant of the Hata model that operates between 150 MHz and 1500 MHz. The model has a transmission range of 20 km and has been routinely used to forecast analogue TV signals [9]. The fluctuation of error spread concerning distance for a 60 km route was plotted to examine the performance of the Davidson and Hata models. ...
... UHF and VHF frequency allocation[9] ...
This paper investigated frequency sharing between primary TV systems (channels 32 and 49) and Emergency Communication Networks (ECNs). The networks to be implemented in the Osogbo axis of Osun State function on a secondary geographical basis, creating no harm to the original licensed primary TV viewers. A minimum separation distance of 41 dB was suggested as the protected contour for the UHF spectrum to oversee the protection of primary TV users for the UHF bands under consideration. The effects of changing the secondary systems' transmitting power, transmission frequency, and antenna height on the service coverage distance were also explored. The performance of the UHF band was evaluated when it was utilized for secondary transmission at both low and high transmitting powers, with the performance criterion being percentage coverage distance. This work complies with the International Telecommunication Union-Radio sector (ITU-R) recommendations of 16 dB for signal-to-noise ratio and 41 dB for signal strength. It can also be deduced from the result that when the transmission power of ECN devices is raised from 40 mW to 4 W, Effective Isotropic Radiated Power (EIRP) is used; it caused a 76.19% reduction in the coverage spacing for TV channels of ECN Network secondary devices. For the White Space Device (WSD) to operate in Temporal mode, the maximum allowable power (4 W) used in spatial mode should be replaced by a 76.19 per cent reduction. Additional sensing margins of 3.76 dB and 4.04 dB for channels 33 and 43 must be added to the FCC threshold limit of -114 dBm criterion for TV white spaces to assure ECN deployment without causing severe interference to TV customers.
... These diversities of broadcasting stations corroborate with the liberalisation of the airwaves for public and private broadcasting utilization. Adetona,Koledoye and Alebiosu, (2013)notes the usage and allocation of broadcast frequencies enables public (federal and states) and private/commercial television stations to fulfilled their social responsibilities to the society and on designated frequency spectrum space. For examples, the Nigerian Television Authority NTA transmits on Very High Frequency (VHF) space, States and private-owned television broadcasting stations: transmits on Ultra High Frequency (UHF) spectrum space.For radio broadcasting stations, Federal Radio Corporation of Nigeria (FRCN) transmits on VHF 11 FM space allocation for FM radio broadcasting while Voice of Nigeria (VON) transmits on High Frequency (HF) for shortwave international broadcasting, All states and private radio broadcasting stations transmits on MF and HF spectrum space (seeFolarin, 2000;Osazee-odia, 2001;Longe, 2011;Adetona, Koledoye and Alebiosu, 2013;Gbenga-Ilori and Ibiyemi, 2016; Okorogu, Alumona et al, 2016)). ...
... Adetona,Koledoye and Alebiosu, (2013)notes the usage and allocation of broadcast frequencies enables public (federal and states) and private/commercial television stations to fulfilled their social responsibilities to the society and on designated frequency spectrum space. For examples, the Nigerian Television Authority NTA transmits on Very High Frequency (VHF) space, States and private-owned television broadcasting stations: transmits on Ultra High Frequency (UHF) spectrum space.For radio broadcasting stations, Federal Radio Corporation of Nigeria (FRCN) transmits on VHF 11 FM space allocation for FM radio broadcasting while Voice of Nigeria (VON) transmits on High Frequency (HF) for shortwave international broadcasting, All states and private radio broadcasting stations transmits on MF and HF spectrum space (seeFolarin, 2000;Osazee-odia, 2001;Longe, 2011;Adetona, Koledoye and Alebiosu, 2013;Gbenga-Ilori and Ibiyemi, 2016; Okorogu, Alumona et al, 2016)). ...
This paper examines the pluralisation of broadcasting in Nigeria with public service and business models as a paradigm of explorative discourse noting that the direction from government monopoly and funding practice to market-driven broadcasting ownership/investment. This policy changes brought about the coexistence of public, private/commercial and community broadcasting stations across the country, with National Broadcasting Commission as a regulator of the competitive broadcasting. Furthermore, the study noted the diversity of programmes format and genres being offered on these stations competing for the attention of audience and programming schedules as a platform on decision-making on choice programme resulting as well, audience polarisation and preference for stations. The author isolates potential benefits of competitive broadcasting landscape and gives further pointer for policy visitation that could enhance the performance of broadcasters and their proprietors on appropriate policy-making and decisions. This study therefore contributes to knowledge and the literature in broadcasting policy research and critical-qualitative research doctrine.
This research examines the influence of Big Brother Naija reality television show on the moral behaviour of youths in Benin metropolis. This research was based on 400 respondents as a sample size to determine the response to the subject matter of which 360 were used and 40 discarded due to improper representation. The study showed that truly, a large number of youths in Benin metropolis watch the show and are heavily influenced through it in their day to day. Through this research, we see that a large number of respondents were between the ages of 21-30 years old. In this research, we realize that the contents of this show to viewers watching are up to no good for the society. Contents of the show, as gathered using the questionnaire as a research instrument, were promiscuous and immoral contents. However, when there is an advantage to something, there is also a disadvantage. We can also see that contents from this show, even though has more negative effects, also has its positive effects like competitiveness and cooperation. Standing on the theory of cultivation for this study, television contents can have a strong hold on its viewers, shaping their beliefs and perceptions and directly or indirectly influencing their personal lives and also that of the people they interact with everyday. The theory states that the more you watch television contents, the more you behave like the content portrays. Conclusively, this research work contributes to the understanding of the influence television shows, particularly Big Brother Naija, has on its viewers in Benin metropolis as well as possible solutions to mitigate the spread of it on viewers and the society at large.
