ALHADDAD, ABDULLAH (2009) PERENCANAAN DAN PEMBUATAN TRANSMITTER TVUHF (EXITER). Other thesis, University of Muhammadiyah Malang.
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The function of TV Transmitter is send the information of audio and video. Audio frequency use the FM frequency, while the video frequency use AM frequency. The process of AM modulation occur in modulator. This process means video signal of 5 MHz modulated by carrier signal(IF Carrier) of 38,9 MHz. The AM modulator structure formed of 494 BF transistor, video carrier signal were processed and isolated before being send to mixer series. The series of FM modulator and oscilator sub carrier of sound formed by 494 BF transistor. The function of this series is to modulated the FM signal when the 50 KHz audio signal were modulated by the 33, 4 IF carrier. The mixer component formed by the 199 BF transistor. The function of this component is to mix the frequency from RF oscilator and IF audio 33,4 MHz and mix the RF frequency of IF video oscilator which modulated by the video in the form of negative modulation AM. The mixer series above have been integrated by small amplified signal and the function is to amplified the output signal from mixer whose signal is weak. This amplifier using a 3355 BLH transistor. To get the desired power, it is important to amplify using some phase of amplifier with the series and component before send to antenna and finally being transmitted. The antenna using in this Thesis was Double Quad antenna. The antenna design use MNANA-GAL software and the function is to determine the range betweem driven (wire) and the gain value of antenna.
|Item Type:||Thesis (Other)|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Divisions:||Faculty of Engineering > Department of Electrical Engineering|
|Depositing User:||Anwar Jasin|
|Date Deposited:||21 Mar 2012 11:18|
|Last Modified:||21 Mar 2012 11:18|
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