Planning and simulation of DRM digital radio technology using Single Frequency Network method for Indonesia
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Abstract
This paper focuses on single-frequency network (SFN) planning using Digital Radio Mondiale (DRM) technology in Indonesia. The frequency channel used for the planning is in VHF Band II, particularly 87.1 MHz. Based on the ITU Radio Regulation, this frequency channel is still part of the broadcasting allocation for Region 3. It is currently not used by any analog (FM) transmission in Indonesia. Currently, the use of FM radio frequency channels in Indonesia between 87.5 MHz and 108 MHz has been congested, particularly in big cities. Furthermore, in order to achieve effectiveness and efficiency for information dissemination by LPP-RRI, it requires at least one frequency channel available to be used throughout all regions of Indonesia. The implementation of using one channel for all regions in Indonesia will only be visible through digital technology, taking advantage of the Single Frequency Network. The first scenario in this plan is to use the existing transmitter sites owned by LPP RRI with a maximum distance of 75 km between the transmitter locations. The second scenario is to use the transmitter sites owned by TVRI to cover the remaining blank spots in regions not covered by RRI’s locations. If both of them still could not cover all regions in Indonesia, then it will need to add some new transmitters in blank spot locations. The simulation result showed that service in all regions in Indonesia requires at least 332 transmitters with a settled technical parameter. Since this plan uses the LPP RRI transmitters, the result could be used as a reference for the network development of LPP-RRI nationwide radio coverage.
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