Design and implementation of low cost,UHF, Vestigial Side Band, PLL Synthesized, Television Exciter

Author

Wickramarathne, W.J.C. ; Siriwardhana, W.G.A.L. ; Trikawela, M.M. ; Narampanawe, K. M M W N B ; Wijayakulasooriya, J.V. ; Ekanayake, E.M.N.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Peradeniya, Peradeniya, Sri Lanka

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

6

Abstract

Designing a Ultra High Frequency (UHF), Vestigial Side Band (VSB), Phase Locked Loop (PLL) Synthesized Television (TV) Broadcasting Exciter according to Consultative Committee on International Radio (CCIR) standard is a challenge, when it is required to achieve low capital cost, operational cost and maximum power efficiency. This paper presents a successful approach to design a TV Exciter which generates a Radio Frequency signal in the UHF band and compatible with TV system B/G. This can cover the all channels in the UHF band between channel 21 and channel 62 (470MHz to 806MHz) with a sufficient output power to drive a UHF power amplifier. The VSB modulation technique saves both the spectrum bandwidth and the transmission power. This system consists of a management system which is used to control and monitor the system.

Keywords

UHF power amplifiers; exciters; phase locked loops; television broadcasting; CCIR standard; Consultative Committee on International Radio standard; PLL synthesizer; TV exciter; UHF band; UHF power amplifier; VSB modulation; capital cost; frequency 470 MHz to 806 MHz; maximum power efficiency; operational cost; phase locked loop; radio frequency signal; spectrum bandwidth; television broadcasting exciter; transmission power; ultra high frequency; vestigial side band; Amplitude modulation; Frequency modulation; Switches; Voltage-controlled oscillators; AM; FM; Local Oscillator; Modulator; PLL Synthesizer; TV broadcasting; UHF; VCO; VSB;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless And Optical Communications Networks (WOCN), 2010 Seventh International Conference On

Conference_Location

Colombo

Print_ISBN

978-1-4244-7203-1

Type

conf

DOI

10.1109/WOCN.2010.5587335

Filename

5587335