Detail of Frequency Band
Band 48.54 – 49.44 GHz
Notes to whole band | 5.149, 5.340, 5.555 |
---|---|
Part of RSUP | RSUP-P/25 |
Service Fixed-Satellite (Earth-to-space) | |
---|---|
Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Primary |
Note | 5.552 |
Additional information | 5.552 applies. |
Non-civil Utilisation – Priority
Band reserved for non-civil utilisation. If civil utilisation is also stated with priority, the band is being used equally with civil utilisation on the basis of coordination.
Non-civil Utilisation – Subsidiarity
Non-civil stations can use the band with subsidiarity to civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by civil utilisation.
Non-civil Utilisation – Not Used
Non-civil stations cannot use the band.
Civil Utilisation – Priority
Band reserved for civil utilisation. If non-civil utilisation is also stated with priority, the band is being used equally with non-civil utilisation on the basis of coordination.
Civil Utilisation – Subsidiarity
Civil stations can use the band with subsidiarity to non-civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by non-civil utilisation.
Civil Utilisation – Not Used
Civil stations cannot use the band.
Note 5.149
In making assignments to stations of other services to which the bands
13 360 – 13 410 kHz, 4 950 – 4 990 MHz, 102 – 109,5 GHz,
25 550 – 25 670 kHz, 4 990 – 5 000 MHz, 111,8 – 114,25 GHz,
37,5 – 38,25 MHz, 6 650 – 6 675,2 MHz, 128,33 – 128,59 GHz,
73 – 74,6 MHz in Regions 1 and 3, 10,6 – 10,68 GHz, 129,23 – 129,49 GHz,
150,05 – 153 MHz in Region 1, 14,47 – 14,5 GHz, 130 – 134 GHz,
322 – 328,6 MHz, 22,01 – 22,21 GHz, 136 – 148,5 GHz,
406,1 – 410 MHz, 22,21 – 22,5 GHz, 151,5 – 158,5 GHz,
608 – 614 MHz in Regions 1 and 3, 22,81 – 22,86 GHz, 168,59 – 168,93 GHz,
1 330 – 1 400 MHz, 23,07 – 23,12 GHz, 171,11 – 171,45 GHz,
1 610,6 – 1 613,8 MHz, 31,2 – 31,3 GHz, 172,31 – 172,65 GHz,
1 660 – 1 670 MHz, 31,5 – 31,8 GHz in Regions 1 and 3, 173,52 – 173,85 GHz,
1 718,8 – 1 722,2 MHz, 36,43 – 36,5 GHz, 195,75 – 196,15 GHz,
2 655 – 2 690 MHz, 42,5 – 43,5 GHz, 209 – 226 GHz,
3 260 – 3267 MHz, 48,94 – 49,04 GHz, 241 – 250 GHz a
3 332 – 3 339 MHz, 76 – 86 GHz, 252 – 275 GHz,
3 345,8 – 3 352,5 MHz, 92 – 94 GHz,
4 825 – 4 835 MHz, 94,1 – 100 GHz,
are allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from spaceborne or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 4.5 and 4.6 and Article 29 of RR).
Note 5.340
All emissions are prohibited in the following bands:
1 400 – 1 427 MHz,
2 690 – 2 700 MHz, except those provided for by No. 5.422 of RR,
10.68 – 10.7 GHz, except those provided for by No. 5.483 of RR,
15.35 – 15.4 GHz, except those provided for by No. 5.511 of RR,
23.6 – 24 GHz,
31.3 – 31.5 GHz,
31.5 – 31.8 GHz, in Region 2,
48.94 – 49.04 GHz, from airborne stations,
50.2 – 50.4 GHz,
52.6 – 54.25 GHz,
86—92 GHz,
100 – 102 GHz,
109.5 – 111.8 GHz,
114.25 – 116 GHz,
148.5 – 151.5 GHz,
164 – 167 GHz,
182 – 185 GHz,
190 – 191.8 GHz,
200 – 209 GHz,
226 – 231.5 GHz,
250 – 252 GHz.
The allocation to the Earth exploration-satellite service (passive) and the space research service (passive) in the band 50.2 – 50.4 GHz should not impose undue constraints on the use of the adjacent bands by the primary allocated services in those bands.
Note 5.555
Additional allocation: the band 48.94 – 49.04 GHz is also allocated to the radio astronomy service on a primary basis.
Note 5.552
The allocation of the spectrum for the fixed-satellite service in the bands 42.5 – 43.5 GHz and 47.2 – 50.2 GHz for Earth-to-space transmission is greater than that in the band 37.5 – 39.5 GHz for space-to-Earth transmission in order to accommodate feeder links to broadcasting satellites. Administrations are urged to take all practicable steps to reserve the band 47.2 – 49.2 GHz for feeder links for the broadcasting-satellite service operating in the band 40.5 – 42.5 GHz.