QCVN 99:2015/BTTTT of the signal between RD and transmitting antenna connector RSU. Record all the value of corresponding to the carrier frequency and offset frequency PTSM fTx foffset Spectrum mask TSM in each case of combination of the carrier frequency and fTx frequency offset performed by EIRP of OBU is calculated by the formula: foffset .GRSU EIRPTSM PTSM ,Tx The parameters in the formula above correspond to the frequencies The f fTx foffset. results obtained will correspond to each case combined between the center frequency and fTx offset frequency All these values are not exceeded the limit as in 2.1.3.3. foffset. Repeat step 6 to step 22 in the transmit RSU mode having modulated carrier with test signal TS1. 3.2.1.4. Unwanted emission of transmitters 3.2.1.4.1. General Independent with the environmental parameters by the manufacturer, the test process is only carried out in normal conditions as defined in 3.1.1. Figure 1 - Model of unwanted radiation measurement of transmitters The basic requirements and measurement guidelines as in Appendix A, Appendix B. The parameters of description and limit (see 2.1.4). The test process is done by measuring the radiation in all the bands corresponding to the active state as shown in Table 2. It should be known in advance the center frequencies of RSU as in 3.1.3. fTx 21
QCVN 99:2015/BTTTT of the signal between RD and transmitting antenna connector RSU. Record all the value of PTSM corresponding to the carrier frequency fTx and offset frequency foffset Spectrum mask TSM in each case of combination of the carrier frequency fTx and frequency offset foffset performed by EIRP of OBU is calculated by the formula: EIRPTSM PTSM .GRSU ,Tx The parameters in the formula above correspond to the frequencies f fTx foffset. The results obtained will correspond to each case combined between the center frequency fTx and offset frequency foffset. All these values are not exceeded the limit as in 2.1.3.3. Repeat step 6 to step 22 in the transmit RSU mode having modulated carrier with test signal TS1. 3.2.1.4. Unwanted emission of transmitters 3.2.1.4.1. General Independent with the environmental parameters by the manufacturer, the test process is only carried out in normal conditions as defined in 3.1.1. Figure 1 - Model of unwanted radiation measurement of transmitters The basic requirements and measurement guidelines as in Appendix A, Appendix B. The parameters of description and limit (see 2.1.4). The test process is done by measuring the radiation in all the bands corresponding to the active state as shown in Table 2. It should be known in advance the center frequencies fTx of RSU as in 3.1.3. 21
QCVN-99-thiet-bi-vo-tuyen--toc-do-TB.DOCX