Terrestrial Trunked Radio (TETRA); Feasibility Study into the Implications of Operating Public Safety Sector (PSS) TEDS using the proposed "Tuning Range" concept in the 410 MHz to 430 MHz and 450 MHz to 470 MHz frequency bands
地面集群无线电(TETRA);在410 MHz至430 MHz和450 MHz至470 MHz频带内使用拟议“调谐范围”概念运行公共安全部门(PSS)TED影响的可行性研究