Local-area field strength variation measurement of the digital terrestrial television signal (COFDM 8K) in suburban environments

1999 ◽  
Vol 45 (4) ◽  
pp. 386-391 ◽  
Author(s):  
A. Arrinda ◽  
M.M. Velez ◽  
D. de la Vega ◽  
J.L. Ordiales
Keyword(s):  
Field Strength ◽  
Local Area ◽  
Strength Variation ◽  
Television Signal ◽  
Digital Terrestrial Television

Discussion on Active Television Interference Characteristic of UHV AC Transmission Line

2014 ◽  
Vol 716-717 ◽  
pp. 1139-1143
Author(s):  
Hui Chun Xie ◽  
Jian Gong Zhang ◽  
Zhuo Yi Zhou
Keyword(s):  
Field Strength ◽  
Transmission Line ◽  
Test Method ◽  
High Voltage Transmission Line ◽  
Fine Weather ◽  
Television Signal ◽  
Before And After ◽  
Ac Transmission ◽  
Signal Field ◽  
Peak Value

High-voltage transmission line corona and sparking will bring television interference (TVI). Study has been seldom executed about active TVI from HV transmission line, and much less research on UHV AC lines. Based on present literatures, this paper brings forward test method of TVI from HV transmission line. Near straight span and tension tower of Chinese UHV AC Pilot Demonstration Project, several tests about TV picture, TVI field strength, the television signal field strength before and after lines energized, has been carried out in good weather. According to observation, interference characteristics to TV picture has been analyzed. Results indicate that, with increasing distance from the outer phase, UHV single circuit TVI field strength in fine weather attenuates negative exponentially. This paper illustrates it is questionable to use CISPR quasi-peak value for assessment of interference on TV picture caused by UHV transmission line corona and sparking noise.

A study of HF field strength variation in India and its prediction

1994 ◽  
Vol 40 (1) ◽  
pp. 38-43
Author(s):  
D.R. Lakshmi ◽  
B.M. Reddy ◽  
M. Sain
Keyword(s):  
Field Strength ◽  
Strength Variation

Analysis and Estimation of the Field Strength of Digital Terrestrial Television Broadcasting

2021 ◽  
Vol 1 (1) ◽  
pp. 17-22
Author(s):  
G. Mihaylov ◽  
E. Ivanova
Keyword(s):  
Field Strength ◽  
Digital Television ◽  
Television Broadcasting ◽  
Digital Terrestrial Television ◽  
Almost All

DVB-T is the most widely used standard for digital television broadcast. With its introduction in 1997, it is used in more than 70 countries. Almost all of these countries adopted the new standard for digital terrestrial television broadcasting – DVB-T2. DVB-T2 is the best technology for digital television broadcasting, which offers better signal robustness, flexibility and more than 50% more efficiency, compared with other digital terrestrial television broadcast systems. This paper focuses on ways to deliver MPEG TS to transmitters and estimation of the field strength.

Sign in / Sign up

Export Citation Format

Share Document