The rapid development of information technology has an impact on behavior. The system is linked together to facilitate the flow of information, through a variety of androids, users are growing, and are very familiar with this technology is open to providing developers to create an application. User Center Design (UCD) is a design that is used because it presents the best approach if it describes from the initial stages of an interactive process. Information about the provision of medicine is desired without the need to go to his place.
The number of software in the telecommunications world allows us to make an FM simulation, one of the software is GNU Radio. This paper will explain FM communication simulations that use a guide between GNU Radio and RTL-SDR and are validated using a spectrum analyzer. The simulation is carried out twice, the first simulation tests the SDR transmit which will be tested in the simulation to be carried out in the GNU Radio worksheet. The second simulation tests an SDR receiver that uses a frequency of 100.3 MHz. Validation is done at a distance of ± 1 meter using a spectrum analyzer connected to the antenna and will receive frequencies of 60,65,70,75 and 80 MHz which will be compared with GNU Radio readings. The parameters to be used are signal to noise ratio (SNR) and beam power. From the results of the first simulation study using GNU Radio worksheets obtained the value of the emission power of -12.4 dBm and the second simulation obtained a value of -12.87. While the validation results show that the value obtained is the accuracy of 99.5% on the measurement of the transmitter’s power value while the signal to noise ratio of 99.78%.
Dampak adanya covid-19 memberikan dampak yang sangat luar biasa bagi masyarakat karena dampaknya menyerang berbagai aspek mulai kesehatan, sosial, ekonomi dan pendidikan terkena imbasnya. Di satu sisi banyak masyarakat yang cenderung acuh dengan adanya covid-19 sehingga penyebarannya makin meluas dan penderita covid-19 selalu mengalami kenaikan, disinilah peranan mahasiswa KNN-DR 81 Universitas Islam Negeri Sumatera Utara dalam memberikan edukasi dalam pembuatan handsanitizer dan disenfektan dengan tujuan untuk mengedukasi masyarakat agar selalu menjaga diri sendiri dan orang-orang sekitar dari bahaya covid-19 serta mengurangi dan menekan jumlah penambahan masyarakat yang positif covid-19. Metode yang digunakan dalam pengabdian masyarakat ini yaitu kualitatif bersifat deskriptif. Teknik pengumpulan data pada pengabdian masyarakat ini dengan cara observasi lapangan, dokumentasi dan studi pustaka (yang bersumber dari buku dan jurnal-jurnal). Hasil dari pengabdian masyarakat ini adalah masyarakat memiliki pemahaman betapa pentingnya menjaga kesehatan agar terhindar dari covid-19, dan dengan kesadaran yang dimiliki masyarakat penulis berharap ini akan mampu mengurangi peningkatan jumlah masyarakat yang positif covid-19.
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