where: = 1, . . . 41 n e) for systems with a carrier spacing of 7 MHz: lower half of the band: = + 808.5 + 7 MHz fn f0 n upper half of the band: = + 1 816.5 + 7 MHz f f0 n ′n where: = 1, . . . 83 n f) for systems with a carrier spacing of 3.5 MHz: lower half of the band: = + 805 + 3.5 MHz fn f0 n upper half of the band: = + 1 813 + 3.5 MHz f f0 n ′n where: = 1, . . . 168. n NOTE 1 The radio-frequency channel arrangements of a) to f) above use channel centre frequencies and fn – selected from the homogeneous pattern of 2. f recommends ′n NOTE 2 Figure 2 gives occupied spectrum in the 22.0-23.6 GHz band. – FIGURE 2 Radio-frequency channel arrangement in the band 22.0-22.6 GHz paired with 23.0-23.6 GHz NOTE 1 For the centre-gap channel arrangements, see §§ 2 and 3 of this Annex. – 2 Frequency 22.59075-22.75875 paired with 22.8427523.01075 GHz These bands are portions of the centre-gap of the channel arrangement shown in § 1, combined with the innermost guardbands of the 3.5 MHz arrangement (see Fig. 3). The preferred channel arrangement for digital point-to-point FWS for carrier spacings of 28 MHz, 14 MHz, 7 MHz and 3.5 MHz should be derived as follows: Let be the reference frequency of 21 196 MHz; f0 be the centre frequency of the radio-frequency channel in the lower half of the fn band (MHz); be the centre frequency of the radio-frequency channel in the upper half of the f ′n band (MHz); TX/RX duplex separation = 252 MHz; centre gap = 84 MHz; then the frequencies of individual channels (Note 1) are expressed by the following relationships: a) for systems with a carrier spacing of 28 MHz:
where: n = 1, . . . 41 e) for systems with a carrier spacing of 7 MHz: lower half of the band: fn = f0 + 808.5 + 7 n MHz upper half of the band: f ′n = f0 + 1 816.5 + 7 n MHz where: n = 1, . . . 83 f) for systems with a carrier spacing of 3.5 MHz: lower half of the band: fn = f0 + 805 + 3.5 n MHz upper half of the band: f ′n = f0 + 1 813 + 3.5 n MHz where: n = 1, . . . 168. NOTE 1 – The radio-frequency channel arrangements of a) to f) above use channel centre frequencies fn and f ′n selected from the homogeneous pattern of recommends 2. NOTE 2 – Figure 2 gives occupied spectrum in the 22.0-23.6 GHz band. 2 Radio-frequency channel arrangement in the band 22.0-22.6 GHz paired with 23.0-23.6 GHz NOTE 1 – For the centre-gap channel arrangements, see §§ 2 and 3 of this Annex. 2 Frequency 22.59075-22.75875 paired with 22.8427523.01075 GHz These bands are portions of the centre-gap of the channel arrangement shown in § 1, combined with the innermost guardbands of the 3.5 MHz arrangement (see Fig. 3). The preferred channel arrangement for digital point-to-point FWS for carrier spacings of 28 MHz, 14 MHz, 7 MHz and 3.5 MHz should be derived as follows: Let f0 be the reference frequency of 21 196 MHz; fn be the centre frequency of the radio-frequency channel in the lower half of the band (MHz); f ′n be the centre frequency of the radio-frequency channel in the upper half of the band (MHz); TX/RX duplex separation = 252 MHz; centre gap = 84 MHz; then the frequencies of individual channels (Note 1) are expressed by the following relationships: a) for systems with a carrier spacing of 28 MHz: FIGURE
R-REC-F.637-4-201203-I!!MSW-E.docx