Assessment of Digital Terrestrial Television Signals in the South-South Region of Nigeria

V. E. Idigo; B. I. Bakare

This paper seeks to present a measurement-based performance analysis of star times television signals in the south-south region of Nigeria using Port Harcourt city and its environ as a case study. Using the Google Earth map software, the measuring points were created within Port Harcourt with reference to the Star time television transmitter location. The Received signal Power (P), Modulation Error Rate (MER), Pre-Bit Error Rate (CBER) and Post Bit-Error Rate (LBER) were measured and recorded with the aid of the DS2400T DVB-T2 Analysis meter at the different measuring points. From the analysis, Channel 17 has better MER compared to Channel 51 as the signal travels out towards the north and the south of the transmitter respectively. It was also observed from the analysis that one may have a good MER, even in the presence of degraded BER. This is particularly true when intermittent interference is occurring, The MER may be fine, while the BER is not. The higher the value of MER measured, the better the signal performance while low MER is not desirable in signal evaluation. It was also observed from the analysis that an increase in distance traveled by the signal away from the transmitter will always result in an increment of the signal Path losses and the path loss was found to be a function of the transmitter power, operating frequency, and the receiver and transmitter antenna height. At a distance of 6km away from the transmitter due south, the received Signal power of channel 51 was lowest with a value of 33.40dBm and channel 17 recorded a value of 44.40dBm. This work has demonstrated that Star Time Television channel 17 signal has a better signal reception relative to channel 51 as it travels out toward the north and south of the transmitter respectively.

Select Volume / Issues:

• Volume 12,Issue 5,Sept. 2021

Year:

2021

Type of Publication:

Article

Keywords:

Bit Error Rate; Digital Television; Modulation Error Rate; Received Signal Power

Journal:

IJECCE

Volume:

12

Number:

5

Pages:

135-146

Month:

September

ISSN:

2249-071X