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Mandagi, Albert
Universitas Trisakti
Computer Science & IT

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Rancang Bangun Car Audio Breaker Berbasis Mobile Phone Mandagi, Albert
Teknik dan Ilmu Komputer Vol. 4 No. 14 April - Juni 2015
Publisher : Teknik dan Ilmu Komputer

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AbstrakCar audio breaker berbasis mobile phone adalah sebuah alat yang direalisasikan untuk memutuskan saluran audio pada mobil ketika terdeteksi radiasi dari mobile phone yang sedang digunakan. Car audio breaker berbasis mobile phone ini terdiri dari rangkaian penguat, rangkaian clamping, rangkaian komparator, rangkaian multivibrator monostabil dan rangkaian penggerak relay. Pada alat ini, untuk membungkamkan saluran audio digunakan saklar relay yang akan memutuskan saluran audio yang terhubung antara sumber audio dengan penguat audio. Dengan menggunakan alat ini maka pembicaraan menggunakan mobile phone dalam mobil tidak akan terganggu oleh suara audio mobil.Kata kunci: breaker, car audio, mobile phone.
Implementation Of Broadband Technology Infrastructure Using Techno-Economic Analysis ( A Casa At The Goverment Of West Java Province) Rambung, Richard A.; Sembiring, Ryan Johan; Surjati, Indra; Mandagi, Albert
Teknik dan Ilmu Komputer Vol. 06 No. 22 April - Juni 2017
Publisher : Teknik dan Ilmu Komputer

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This research is to identify the economic value of implementing fixed-WIMAX (Worldwide Interoperability for Microwave Access) technology and customized fiber-optic technology in the development planning of broadband infrastructure owned by the government of West Java Province. This research is descriptive, and using Techno Economic Analysis. The result shows ratio of the values of technology investments to the value of revenue assumption in government user or non-government user. It is seen that the capital expenditure (CAPEX) value for technology investment of fixed-WIMAX and fiber-optic are US$13,900,660 and US$18,297,880. Meanwhile, the operational expenditure (OPEX) value are US$8,459,280 and US$1,646,530. The Net Present Value (NPV) for fixed-WIMAX and fiber-optic technology implementation projected for five years is US$14744,52 and US$22,918,470. It can be concluded that investment project is feasible, but fiber-optic technology investment is more profitable. If a review based on Internal Rate of Return (IRR) calculation shows that fixed-WIMAX or fiber-optic technology implementation gives the same value, which is 30.6%, it can be concluded that both implementations are feasible. Keywords: West Java, fixed-WIMAX, fiber-optic, techno-economic. 
Co-Authors Rambung, Richard A. Ryan Johan Sembiring Surjati, Indra