A new IOT system for analogue and DVB terrestrial UHF television transmission

Author

Aitken, S. ; Carr, D.W. ; Clayworth, G.T. ; Heppinstall, R. ; Wheelhouse, A.E.

Author_Institution

EEV Ltd., UK

fYear

1997

fDate

12-16 Sep 1997

Firstpage

386

Lastpage

392

Abstract

The initial range of inductive output tube (IOT) UHF TV amplifier systems has been accepted world-wide as an important step forward in TV amplifier technology. Lower power amplifiers have been developed, but a higher power IOT system is needed to satisfy requirements in Europe and elsewhere. The paper discusses the need for a higher power IOT system and describes the development of a 55 kW visual plus 5.5 kW aural common amplifier system, based upon the successful lower power design. Changes necessary to increase the output power, whilst maintaining the established reliability and life potential, are described. Analogue performance results for the new IOT are presented. The future of terrestrial TV is digital television. The paper also presents the results of a programme of experimental work aimed at establishing the OFDM DVB performance of the new IOT and its possible impact on the world digital scene is discussed

Keywords

digital television; 5.5 kW; 55 kW; DVB; Europe; IOT system; OFDM; UHF TV amplifier systems; analogue UHF television transmission; analogue performance results; digital television; experimental results; inductive output tube; output power; reliability; television transmitters; terrestrial UHF television transmission;

fLanguage

English

Publisher

iet

Conference_Titel

Broadcasting Convention, 1997. International

Conference_Location

Amsterdam

ISSN

0537-9989

Print_ISBN

0-85296-694-6

Type

conf

DOI

10.1049/cp:19971301

Filename

626851