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Journal : JURNAL TEKNOLOGI TECHNOSCIENTIA

SISTEM KUNCI ELEKTRONIS DENGAN PEREKAM WAKTU AKSES BERBASIS MIKROKONTROLER AT89C51 Priyambodo, Sigit; Heironi, Anik
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 7 No 1 Agustus 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v7i1.602

Abstract

The development in technology, especially in electronic technology. Every technology in many fields of study mostly need electronic device. Even door lock incur-porate electronic technology to junction better.To make electronic key system follow few steps. First, the planning to design electronic and mechanic system of the door lock. Second, design the hardware and drill the PCB, Then assemble the electronic compo-nents. Third, design of the software use algoritm from system. Fourth, flash the assembler program into the IC AT89C51 and set it to hardware, next test the completed system.The result, shows that the system can be applied to the door lock system with time recording access. It uses Real Time Clock (RTC), Line Port Terminal (LPT), IC AT89C51 and handphone siemens M35i as the interface system.
ANALISA RUGI-RUGI ANTENA PEMANCAR FM ISTAKALISA YOGYAKARTA Priyambodo, Sigit
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.1906

Abstract

Everyone basically knows and perceives about the function of antenna. The antenna is a tool or device which has function to receive and transmit signals from a point to another. According to the research of IstaKalisa’s FM Transmitter Radio antenna of Yogyakarta, the writer will give conclusion of research. Loss which affect the working of transmitting radio stations are loss of cord, loss of space damping, and loss of resistance. They make fading on the transmitting power where the fading is in dB unit. Moreover, the position and location of Istakalisa FM transmitter radio station is in the downtown. It does not support to the transmitting system caused by ground conductivity is less than standard and also numbers of high buildings.
ANALISIS POLA RADIASI PEMANCAR ISTA KALISA FM YOGYAKARTA Priyambodo, Sigit
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.1907

Abstract

In respect of development of communication system has grown rapidly, there is no problem with the distance, we can know what is happening in the different places even in other country as near as our places. In line with the advance of development of communication devices now days are closed to simple and practical, such as radio, television, cellular phone, and also internet. The radio communication specially, bigger the power transmitted by the antenna, larger area can be covered by the transmitter, that is phenomenon known as the antenna polarization. Radiation pattern analysis of ISTAKALISA FM Yogyakarta transmitter is aimed to recognize the diffuse of transmitting power and the deviation of Istakalisa’s radio antenna. The pattern and deviation can be formed and calculated at first by having tracking and then the data can be obtained where the parameters are able to be utilized for making a pattern and deviation.