TABLE 5 Table of break points corresponding to Fig. 17 for 6 MHz DVB-T systems Frequency relative to the centre of the 6 MHz channel (MHz) Relative level in a 4 kHz measurement bandwidth (dB) 15 99 9 91 3.2 66.5 2.86 31.5 2.86 31.5 3.2 66.5 9 91 15 99 6 Table of end point value and next-to-end point values to be used in conjunction with Fig. 17 and Table 5, applicable to a range of transmitter output powers, for 6 MHz DVB-T systems End point value(1) (4 kHz measurement bandwidth) (dB) range (dBW) Corresponding spurious level (100 kHz measurement bandwidth) 89 – (P – 9) P 9 36 dBm 89 9  P 29 75 dBc 89 – (P – 29) 29  P 39 16 dBm 99 39  P 50 85 dBc 99 – (P – 50) 50 P 5 dBm (1) The next-to-end value is 8 dB higher than the end point value and all of these values are subject to an upper limit equal to –66.5 dB. 1.2 6 MHz channelling ISDB-T systems For 6 MHz ISDBT systems, the OoB domain extends from 3 MHz (i.e. 0.5 6 MHz) to 15 MHz (i.e. 2.5 6 MHz) relative to channel centre. Spectrum limit mask for a 6 MHz ISDBT system is shown in Fig. 18. The related break points are given in Table 7. The relative power level is defined in a reference bandwidth of 4 kHz. The 0 dB reference level corresponds to the mean output power measured in the channel bandwidth. These emission limits apply when transmitter power is above 39 dBW. FIGURE 18 Spectrum limit mask for 6 MHz ISDB-T (for P > 39 dBW)
TABLE 12 Break points for 8 MHz analogue television, positive modulation, 0.75 MHz and 1.25 MHz VSB Frequency relative to the vision carrier frequency Frequency relative to the centre of the 8 MHz channel Relative in 50 kHz measurement bandwidth 0.75 MHz VSB (dB) Relative level in 50 kHz measurement bandwidth 1.25 MHz VSB (dB) –17.25 –20 –89.2 –89.2 –9.25 –12 –64.2 –64.2 –6.5 –9.25 –56 –56 –6 –8.75 –28 –28 –2.7 –5.45 –28 –1.25 –4 –28 –13 –0.75 –3.5 –13 –13 –0.18 –2.93 –13 –13 0 –2.75 0 0 0.18 –2.57 –13 –13 6 3.25 –13 –13 6.435 3.685 –10 –10 6.565 3.815 –10 –10 6.75 4 –50 –50 13 10.25 –56 –56 14.75 12 –64.2 –64.2 22.75 20 –89.2 –89.2 13 provides end point values to be used in conjunction with Table 12 and Fig. 21, applicable to a range of transmitter output powers, for 8 MHz analogue television, positive modulation. TABLE 13 End point values for 8 MHz analogue television, positive modulation End point value(1) (50 kHz measurement bandwidth) (dB) range (dBW) Corresponding spurious level (in 100 kHz measurement bandwidth) –79.2 – (P – 9) P 9 –36 dBm –79.2 9  P 29 75 dBc –79.2 – (P – 29) 29  P 39 –16 dBm –89.2 39  P 50 85 dBc –89.2 – (P – 50) 50  P –5 dBm (1) The end value is subject to an upper limit of 64.2 dB.
2.2 Digital television systems 2.2.1 7 and 8 MHz DVB-T systems For 7 MHz digital television, the OoB domain extends from  3.5 MHz (i.e.  0.5 × 7 MHz) to  17.5 MHz (i.e.  2.5 × 7 MHz). For 8 MHz digital television, the OoB domain extends from  4 MHz (i.e.  0.5 × 8 MHz) to  20 MHz (i.e.  2.5 × 8 MHz). For both 7 MHz and 8 MHz digital television, a 4 kHz measurement bandwidth is used to measure unwanted emission levels. The 0 dB reference level corresponds to the mean output power measured in the channel bandwidth. Spectrum limit masks for 7 MHz and 8 MHz DVB-T systems are shown in Figs 22 and 23 respectively. Each graph is drawn to represent the spectrum limits for transmitters in the output power range 39 dBW to 50 dBW. Associated with each graph is a table of break points and a table of end point and next-to-end point values, together with the corresponding spurious levels, for a range of transmitter output powers. FIGURE 22 Spectrum limit mask for 7 MHz DVB-T systems (for P = 39 to 50 dBW) Table 14 provides break points corresponding to Fig. 22, for 7 MHz DVB-T systems. TABLE 14 Break points for 7 MHz DVB-T systems Frequency relative to the centre of the 7 MHz channel Relative level in 4 kHz measurement bandwidth (dB) –17.5 –99 –10.5 –91 –3.7 –67.2 –3.35 –32.2 3.35 –32.2 3.7 –67.2 10.5 –91 17.5 –99 Table 15 provides end point value and next-to-end point values to be used in conjunction with Fig. 22 and Table 14, applicable a range of transmitter output powers, for 7 MHz DVBT systems.
FIGURE 42 Examples of out-of-band for aeronautical telemetry 2 Other aeronautical-mobile and maritime-mobile transmitters For aeronautical-mobile and maritime-mobile transmitters other than aeronautical telemetry and exempted systems, the required attenuation of the mean power of any emission in the OoB domain, relative to the mean power of the transmitter, is: 50-150% 25 dBc 150-250% 35 dBc FIGURE 43 OoB mask for aeronautical and maritime mobile Annex 12 OoB domain emission limits for the fixed service Recommendation ITU-R F.1191 requires that, for digital radio relay systems, operating on a specific radio-frequency channel arrangement, the frequency boundaries between spurious and OoB domains are 250% of the relevant channel separation (CS). Therefore, for the purpose of this Recommendation, the OoB domain emission limits of analogue and digital fixed service systems are defined, whenever applicable, up to the 250% of the relevant CS of the radiofrequency channel arrangement where the system is to be placed. According to Recommendation ITU-R F.1191, the CS is taken as XS/2 for alternated frequency channel arrangements and XS for co-channel and interleaved frequency channel arrangements as defined by Recommendation ITU-R F.746. Where exclusive block assignments (see Note 1) are made, transmitters operating on sub-channels devised by the licensed operator could, in principle, be exempted, within the block, by the unwanted emissions limit required to be met outside the block; however at country borders this should require agreement between the administrations concerned due to the fact that they may have licensed the band in a different way. The spectrum masks specified in this annex are intended as generic limits, which generally constitute the least restrictive OoB emission limits successfully used as national or regional regulations. These are sometimes called safety net limits. They are intended for use in bands where tighter masks are not otherwise required to protect specific applications. These masks are a composite maximum limit for any application and frequency band of deployment in any climatic zone; however actual spectrum masks are usually designed more tightly according