Detail of Frequency Band
Band 41 – 42.5 GHz
Notes to whole band | 5.547, 5.551H, 5.551I |
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Part of RSUP | RSUP-P/9 |
Service Fixed | |
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Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Primary |
Application Point-to-Point | |
Section | 40.5 – 43.5 GHz |
Harmonisation | CEPT/ECC/REC/(01)04 |
Additional information | Utilisation is in accordance with the footnote 5.547. In compliance with CEPT/ECC/REC/(01)04 it is designated for point-to-point links. The channel spacing is 112 MHu or 56 MHz or 28 MHz or 14 MHz. Maximum e.i.r.p. spectral power density is 40 dBW/MHz; |
Future | (1) Based on operational experiences of the P-P links operations in the fixed service, the Office can modify technical conditions of the utilisation of the bands described in article 5(2), comment: see PV-P/9/01.2014-01. (2) In accordance with decision, fixed service utilisation will not be developed in the future. |
Section | 41.894 – 42.05 GHz |
Additional information | The sub-band 41.894-42.05 GHz is guard band. |
Service Broadcasting | |
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Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Primary |
Additional information | Not used. |
Service Broadcasting-Satellite | |
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Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Primary |
Application Broadcasting (satellite) | |
Harmonisation | CEPT/ECC/DEC/(02)04 |
Additional information | THe use is in accordance with Footnotes 5.551H and 5.551I. The non-coordinated Earth stations in the broadcasting-satellite service cannot require protection against the stations in the fixed or broadcasting service. |
Service Maritime mobile | |
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Category of assignment | Secondary |
Non-civil utilisation | Not used |
Civil utilisation | Only |
Service Aeronautical mobile | |
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Category of assignment | Secondary |
Non-civil utilisation | Not used |
Civil utilisation | Only |
Service Fixed-Satellite (space-to-Earth) | |
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Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Only |
Notes | 5.516B, 5.550C |
Service Land mobile | |
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Category of assignment | Primary |
Non-civil utilisation | Not used |
Civil utilisation | Only |
Note | 5.550B |
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 5.547
The bands 31.8 – 33.4 GHz, 37 – 40 GHz, 40.5 – 43.5 GHz, 51.4 – 52.6 GHz, 55.78 – 59 GHz and 64 –66 GHz are available for high-density applications in the fixed service (see Resolution 75). Administrations should take this into account when considering regulatory provisions in relation to these bands. Because of the potential deployment of high-density applications in the fixed-satellite service in the bands 39.5 – 40 GHz and 40.5 – 42 GHz (see No. 5.516B of RR), administrations should further take into account potential constraints to high-density applications in the fixed service, as appropriate.
Note 5.551H
The equivalent power flux-density (epfd) produced in the frequency band 42.5-43.5 GHz by all space stations in any non-geostationary-satellite system in the fixed-satellite service (space-to-Earth), or in the broadcasting-satellite service operating in the frequency band 42-42.5 GHz, shall not exceed the following values at the site of any radio astronomy station for more than 2% of the time:
−230 dB(W/m²) in 1 GHz and −246 dB(W/m²) in any 500 kHz of the frequency band 42.5-43.5 GHz at the site of any radio astronomy station registered as a single-dish telescope; and
−209 dB(W/m²) in any 500 kHz of the frequency band 42.5-43.5 GHz at the site of any radio astronomy station registered as a very long baseline interferometry station.
These epfd values shall be evaluated using the methodology given in Recommendation ITU-R S.1586-1 and the reference antenna pattern and the maximum gain of an antenna in the radio astronomy service given in Recommendation ITU-R RA.1631-0 and shall apply over the whole sky and for elevation angles higher than the minimum operating angle θmin of the radiotelescope (for which a default value of 5° should be adopted in the absence of notified information).
These values shall apply at any radio astronomy station that either:
- was in operation prior to 5 July 2003 and has been notified to the Bureau before 4 January 2004;
or
- was notified before the date of receipt of the complete Appendix 4 information for coordination or notification, as appropriate, for the space station to which the limits apply.
Other radio astronomy stations notified after these dates may seek an agreement with administrations that have authorized the space stations. In Region 2, Resolution 743 (WRC-03) shall apply. The limits in this footnote may be exceeded at the site of a radio astronomy station of any country whose administration so agreed.
Note 5.551I
The power flux-density in the band 42.5 – 43.5 GHz produced by any geostationary space station in the fixed-satellite service (space-to-Earth), or the broadcasting-satellite service operating in the 42 –42.5 GHz band, shall not exceed the following values at the site of any radio astronomy station:
a) 137 dB(W/m2) in 1 GHz and –153 dB(W/m2) in any 500 kHz of the 42.5 – 43.5 GHz band at the site of any radio astronomy station registered as a single-dish telescope; and
b) 116 dB(W/m2) in any 500 kHz of the 42.5 – 43.5 GHz band at the site of any radio astronomy station registered as a very long baseline interferometry station.
These values shall apply at the site of any radio astronomy station that either:
a) was in operation prior to 5 July 2003 and has been notified to the Radiocommunication Bureau of ITU before 4 January 2004; or
b) was notified before the date of receipt of the complete RR Appendix 4 information for coordination or notification, as appropriate, for the space station to which the limits apply.
Other radio astronomy stations notified after these dates may seek an agreement with administrations that have authorized the space stations. In Region 2, Resolution 743 shall apply. The limits in this footnote may be exceeded at the site of a radio astronomy station of any country whose administration so agreed.
Note 5.516B
The following bands are identified for use by high-density applications (HDFSS) in the fixed-satellite service:
17.3 – 17.7 GHz (space-to-Earth) in Region 1,
18.3 – 19.3 GHz (space-to-Earth) in Region 2,
19.7 – 20.2 GHz (space-to-Earth) in all Regions,
39.5 – 40 GHz (space-to-Earth) in Region 1,
40 – 40.5 GHz (space-to-Earth) in all Regions,
40.5 – 42 GHz (space-to-Earth) in Region 2,
47.5 – 47.9 GHz (space-to-Earth) in Region 1,
48.2 – 48.54 GHz (space-to-Earth) in Region 1,
49.44 – 50.2 GHz (space-to-Earth) in Region 1,
And
27.5 – 27.82 GHz (Earth-to-space) in Region 1,
28.35 – 28.45 GHz (Earth-to-space) in Region 2,
28.45 – 28.94 GHz (Earth-to-space) in all Regions,
28.94 – 29.1 GHz (Earth-to-space) in Region 2 and 3,
29.25 – 29.46 GHz (Earth-to-space) in Region 2,
29.46 – 30 GHz (Earth-to-space) in all Regions,
48.2 – 50.2 GHz (Earth-to-space) in Region 2.
This identification does not preclude the use of these bands by other fixed-satellite service applications or by other services to which these bands are allocated on a co-primary basis and in RR does not establish priority among users of the bands. Administrations should take this into account when considering regulatory provisions in relation to these bands. See Resolution 143.
Note 5.550C
The use of the frequency bands 37.5-39.5 GHz (space-to-Earth), 39.5-42.5 GHz (space-to-Earth), 47.2- 50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space) by a non-geostationary-satellite system in the fixed-satellite service is subject to the application of the provisions of No. 9.12 for coordination with other non-geostationary satellite systems in the fixed-satellite service but not with non-geostationary-satellite systems in other services. Resolution 770 (WRC-19) shall also apply, and No. 22.2 shall continue to apply. (WRC-19)
Note 5.550B
The frequency band 37-43.5 GHz, or portions thereof, is identified for use by administrations wishing to implement the terrestrial component of International Mobile Telecommunications (IMT). This identification does not preclude the use of this frequency band by any application of the services to which it is allocated and does not establish priority in the Radio Regulations. Because of the potential deployment of FSS earth stations within the frequency range 37.5-42.5 GHz and high-density applications in the fixed-satellite service in the frequency bands 39.5-40 GHz in Region 1, 40-40.5 GHz in all Regions and 40.5-42 GHz in Region 2 (see No. 5.516B), administrations should further take into account potential constraints to IMT in these frequency bands, as appropriate. Resolution 243 (WRC-19) applies. (WRC-19)