The transmission coverage modes adopted by DTMB and DTMB-A are quite different from each other in terms of transmission power,reception threshold,payload data rate,etc.In order to effectively evaluate the differences in signal coverage between DTMB and DTMB-A,this paper designs the reception comparison testing between DTMB and DTMB-A in different areas.The testing points were selected according to the location of terrestrial broadcasting transmission stations,the current working mode of DTMB/DTMB-A and the topographic characteristics of the capital Dili,Timor-Leste and its surrounding areas.The RF signal were collected with Eiden4417 and analyzed comprehensively in the laboratory.According to the analysis testing results,this paper gives the analysis conclusion of DTMB and DTMB-A terrestrial broadcast coverage differentiation.
维普
万方数据