Videos by Muhammad Aldrien
is my activity as a professional technician in order to go to Analog Switch Off for television tr... more is my activity as a professional technician in order to go to Analog Switch Off for television transmitters throughout Indonesia. That's why we when setting up a dualcast transmitter ready to shift from Analog to Digital. We are currently doing this and testing it at that time with very satisfactory results, so that people can receive broadcasts with clear, clean and satisfactory quality, because when we tested reception with mobile phone communication devices, the results were good, especially standard television receivers. 4 views
Papers by Muhammad Aldrien
Imam Habib Abdullah Alwi Haddad
sebagai awal untuk mencari siapakah yang sudah menciptakan diri (Manusia) beserta alam raya dan ... more sebagai awal untuk mencari siapakah yang sudah menciptakan diri (Manusia) beserta alam raya dan isinya sekalian mahluk.
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Transisi televisi digital, juga disebut switchover digital (DSO), switch-off analog (ASO), migras... more Transisi televisi digital, juga disebut switchover digital (DSO), switch-off analog (ASO), migrasi digital, atau shutdown analog, adalah proses di mana teknologi penyiaran televisi analog yang lebih tua dikonversi ke dan digantikan oleh televisi digital. Dilakukan oleh masing-masing negara pada jadwal yang berbeda, ini terutama melibatkan konversi infrastruktur penyiaran televisi terestrial analog ke terestrial digital (DTT), manfaat utama adalah frekuensi ekstra pada spektrum radio dan biaya penyiaran yang lebih rendah, serta peningkatan kualitas menonton bagi konsumen.
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ANTENNA BASICS very ham needs at least one antenna, and most hams have built one. This chapter, b... more ANTENNA BASICS very ham needs at least one antenna, and most hams have built one. This chapter, by Chuck Hutchinson, K8CH, covers theory and construction of antennas for most radio amateurs. Here you'll find simple verticals and dipoles, as well as quad and Yagi projects and other antennas that you can build and use. The amount of available space should be high on the list of factors to consider when selecting an antenna. Those who live in urban areas often must accept a compromise antenna for the HF bands because a city lot won't accommodate full-size wire dipoles, end-fed systems or high supporting structures. Other limitations are imposed by the amount of money available for an antenna system (including supporting hardware), the number of amateur bands to be worked and local zoning ordinances. Operation objectives also come into play. Do you want to dedicate yourself to serious contesting and DXing? Are you looking for general-purpose operation that will yield short-and long-haul QSOs during periods of good propagation? Your answers should result in selecting an antenna that will meet your needs. You might want to erect the biggest and best collection of antennas that space and finances will allow. If a modest system is the order of the day, then use whatever is practical and accept the performance that follows. Practically any radiator works well under some propagation conditions, assuming the radiator is able to accept power and radiate it at some useful angle. Any antenna is a good one if it meets your needs! In general, the height of the antenna above ground is the most critical factor at the higher end of the HF spectrum, that is from roughly 14 through 30 MHz. This is because the antenna should be clear of conductive objects such as power lines, phone wires, gutters and the like, plus high enough to have a low radiation angle. Lower frequency antennas, operating between 2 and 10 MHz, should also be kept well away from conductive objects and as high above ground as possible if you want good performance. Antenna Polarization Most HF-band antennas are either vertically or horizontally polarized, although circular polarization is possible, just as it is at VHF and UHF. Polarization is determined by the position of the radiating element or wire with respect to the earth. Thus a radiator that is parallel to the earth radiates horizontally, while an antenna at a right angle to the earth (vertical) radiates a vertical wave. If a wire antenna is slanted above earth, it radiates waves that have both a vertical and a horizontal component.
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SDI and IP in the same frame, so you can migrate from one to the other as your needs change.
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Videos by Muhammad Aldrien
Papers by Muhammad Aldrien
Kapasitas transmisi dari sambungan elektronik seperti jaringan komunikasi, bus komputer dan komputer channel. Biasa dilambangkan dengan bit per second atau Hertz. Jika dituliskan dalam Hertz, maka bilangannya menjadi lebih besar dibanding jika dituliskan dalam bit per second. Sebagai contoh bila dituliskan dalam bit per second adalah 64 Kbps, yang artinya adalah 64 kilobit per detiknya atau 8 KiloBytes per detiknya. Hal ini biasanya digunakan untuk mengukur kecepatan Internet yang sedang kita gunakan. Catatan 1Bytes = 8 bit