Guidance
Notes for the Licensing of a Permanent Earth Station in the Fixed Satellite Service
General
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These notes and application form relate to the issue of
a Wireless Telegraphy Act 1949 licence. A Telecommunications Act licence may also be
required. The T Act Satellite Services Class Licence places certain restrictions on
interconnection with the public network. Further advice can be obtained by writing to:
Department of Trade and Industry,
Communications and Information Industries Directorate,
151 Buckingham Palace Road,
London SW1W 9SS |
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Notes on completing the Form RA362
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| In the case of a private firm which is not a Limited
Company, the full name of each partner should be given. There may be insufficient space on
the Form to answer particular questions, in such cases the appropriate section should be
photocopied and added to the Form. The processing of the application may be delayed if any
of the details given on the Form are not complete or correct. Any amendment to your
licence requires the prior consent of the Secretary of State. If you are applying for an
amendment to your current licence, you need to complete all questions. |
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Section B
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| Name of the Earth Station |
Indicate the name by which the Earth Station will be known. |
| Horizon Elevation (Diagram attached) |
Enter a Figure number of the diagram indicating the horizon
elevation angle for each azimuth around the earth station; the horizon elevation angle is
the angle viewed from the centre of the earth station antenna between the horizontal plane
and a ray that grazes the visible physical horizon in the direction concerned. |
| Operating Angles |
Enter the planned range of operating azimuthal angles. These angles
are to be calculated for the nominal orbital longitude, taking into account the
tolerances. |
| Associated Space Station |
Indicate the name of the associated space station with which
communication is to be established as registered with the IFRB. |
| Nominal Orbital Longitude |
Enter the nominal longitude of the orbital position of that of the
satellite expressed in decimal degrees E or W (the value should not exceed 180 Degrees). |
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Section C
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| Type of Antenna |
ie Cassegrain/Gregorian etc. |
| Maximum Isotropic Gain |
Enter the gain (Gi: see RRSI.160a) of the antenna in the direction
of maximum radiation, expressed in dBi. |
| Beamwidth |
Enter the total beamwidth at the mean half-power points of the main
lobe, expressed in decimal degrees. Describe in detail in attachment if not symmetrical. |
| Radiation Pattern |
If a reference radiation pattern cannot be indicated by one of the
symbols below, or the measured radiation diagram of the antenna is available, give the
relevant information in an attachment. If an attachment is provided, enter a figure number
identifying its presence. Indicate the reference radiation
pattern, preferably by means of the following symbols or similar symbols not exceeding 12
characters.
| Symbol |
Description of the Radiation Pattern |
| REC-465 |
Current version of ITU-R Recommendation 465:
Reference earth station radiation pattern for use in coordination and interference
assessment in frequency range from 2 to about 30 GHz. |
| REC-580 |
Current version of ITU-R Recommendation 580:
Radiation diagrams for use as design objectives for antennas of earth stations
operating with geostationary satellites. |
| AP28 |
Point 4, Annex II of Appendix S7. Note: This radiation
diagram is identical to that in Annex III to Appendix S8. |
| 29-25LOG(FI) |
Represents a reference radiation pattern similar to
that in ITU-R Rec.465 with side lobe radiation reduced by 3dB. |
| 27-25LOG(FI) |
As above with side lobe radiation reduced by 5dB. |
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Section D
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| Satellite Receiving Beam Designation |
Enter the receiving beam designation by a symbol consisting of up
to four characters. For practical reasons, there are different approaches for the
designation of the beam, it may consist of:
- number such as 1, 2, 3, etc., which refer to the number of the figure
representing the corresponding antenna gain contour published in the relevant Special
Section; or
- number such as 195, which identify a beam having a maximum gain of
19.5dB; or
- a symbol of up to three letters (or a letter and a figure), which is
used to represent the abbreviated beam name, such as G for global, NWQ for North West
Quadrant, WH for West Hemisphere, Z1 for Zone 1, O for Omnidirectional.
For steerable beams, the last character shall always be the letter
R. |
| Class of station/Nature of service |
Indicate the appropriate class of station and the nature of service
using the symbols given in Tables Nos. 6A1 and 6B1 respectively of the Preface to the IFL,
the SRS and the WIC. Up to four pairs of values can be provided. |
| Polarisation |
Enter the symbol for the type of polarisation in the first box (see
symbols for the type of polarisation in Table No. 9D1 of the Preface to the IFL, the SRS
and the WIC). In the case of linear polarisation (symbol L), indicate in the
second box the angle (in degrees) measured counter-clockwise in a plane normal to the beam
axis from the Equatorial plane to the electric vector of the waves as seen from the
satellite. |
| Assigned frequency band |
Enter the bandwidth of the assigned frequency band as defined in
RR.S1.147 expressed in kHz. The assigned frequency band should in no case exceed the
bandwidth of a single satellite transponder. Maximum aggregate power Enter the maximum
aggregate power (dBW) of all carriers supplied to the input of the antenna. This
information applies only to the case of a receiving satellite antenna beam operating with
a transmitting associated earth station. |
| Designation of emission |
Indicate the necessary bandwidth (RR.S1.152) and class of emission
(RR.S1.139) in accordance with Article 4 and Appendix 6; see also IFRB Circular-letters
No. 457 of 2 June 1980 and No. 511 of 8 July 1982. |
| Maximum peak power |
Enter the appropriate sign (+ or -) and the maximum value of the
total peak envelope power (RR.S1.157), expressed in dBW, supplied to the input of the
antenna for each corresponding emission. Note: If the maximum values of peak envelope
power are being provided for individual carriers, they should be of type C8a1. If the
notification does not concern individual carriers (e.g. as in spread spectrum
applications) provide a general designation of emission (item C7a) and total peak power
values of type C8b1. |
| Maximum power density |
Enter the appropriate sign (+ or -) followed by the value of the
maximum power density per Hertz (expressed in dBW/Hz) supplied to the input of the antenna
averaged over the worst 4 kHz band for carriers below 15 GHz, or averaged over the worst 1
MHz band for carriers above 15 GHz. For narrow band carriers with a necessary bandwidth
(RR.S1.152) less than the reference bandwidth, the peak power should be averaged over the
reference bandwidth (4 kHz or 1 MHz) to obtain this value of maximum power density. Note: If the values of maximum power density are being provided for
individual carriers, they should be of type C8a2. If the notification does not concern
individual carriers (e.g. as in spread spectrum applications) provide a general
designation of emission (item C7a) and maximum power density values of type 8b2. |
| Minimum peak power |
Enter the appropriate sign (+ or -) and the minimum value of the
peak envelope power (RR.S1.157), expressed in dBW, supplied to the input of the antenna
for each corresponding emission (carrier type). |
| Minimum power density |
Enter the appropriate sign (+ or -) followed by the value of the
minimum power density per Hertz (expressed in dBW/Hz) supplied to the input of the antenna
for each corresponding emission (carrier type) averaged over the worst 4 kHz band for
carriers below 15 GHz, or averaged over the worst 1 MHz band for carriers above 15 GHz .
For narrow band carriers with a necessary bandwidth (RR.S1.152) less than the reference
bandwidth, the peak power should be averaged over the reference bandwidth (4 kHz or 1 MHz)
to obtain this value of minimum power density. |
| Assigned frequency |
Enter the assigned frequency as defined in RR.S1.148 expressed in
kHz up to 28 000 kHz inclusive, in MHz above 28 000 kHz to 10 500 MHz inclusive, and in
GHz above 10 500 MHz, and enter the letter k, M or G, as appropriate. |
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SECTION F
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| Satellite Transmitting Beam Designation |
Enter the transmitting beam designation by a symbol consisting of
up to ten characters. For practical reasons, there are different approaches for
designation of the beam. It may consist of:
- number such as 1,2,3 etc. which refer to the number of the figures
representing the corresponding antenna gain contour published in the relevant Special
Section; or
- number such as 195, which identify a beam having a maximum gain of
19.5dB; or
- a symbol of up to three letters (or a letter and a figure), which is
used to represent the abbreviated beam name, such as G for Global, NWQ for North West
Quadrant, WH for West Hemisphere, Z1 for Zone 1, O for Omnidirectional.
- for steerable beams, the last character shall always be the letter
R.
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| Class of station/Nature of service |
Indicate the appropriate class of station and the nature of service
using the symbols given in Tables Nos. 6A1 and 6B1 respectively of the Preface to the IFL,
the SRS and the WIC. Up to four pairs of values can be provided. |
| Polarisation |
Enter the symbol for the type of polarisation in the first box (see
symbols for the type of polarisation in Table No. 9D1 of the Preface to the IFL, the SRS
and the WIC). In the case of linear polarisation (symbol L), indicate in the
second box the angle (in degrees) measured counter-clockwise in a plane normal to the beam
axis from the Equatorial plane to the electric vector of the waves as seen from the
satellite. |
| Assigned frequency band |
Enter the bandwidth of the assigned frequency band as defined in
RR.S1.147 expressed in kHz. The assigned frequency band should in no case exceed the
bandwidth of a single satellite transponder. Receiving system noise temperature Enter the
total receiving system noise temperature expressed in kelvins, referred to the output of
the space station receiving antenna. |
| Designation of Emission |
Is made up of three parts, Bandwidth (four characters), Emission
(three characters) & Description of Emission (two characters). This makes a nine
character emission code. See Guide to Class of Emissions RA97. e.g. 30MOF8FHN is 30MO = 30MHz, F = Frequency modulated, 8 = Composite system
with one or more channels containing analogue information, F = Television (video), H =
Sound of broadcasting quality (stereophonic or quadraphonic), N = No multiplexing
employed.
Indicate the necessary bandwidth (RR.S1.152) and class of emission
(RR.S1.139) in accordance with Article 4 and Appendix 6; see also IFRB Circular-letters
No. 457 of 2 June 1980 and No. 511 of 8 July 1982. |
| C/N objective (total-clear sky) |
Enter the required carrier to noise ratio, in decibels, for the
overall link for each carrier when clear sky propagation conditions apply. Assigned
frequency Enter the assigned frequency as defined in RR.S1.148 expressed in kHz up to 28
000 kHz inclusive, in MHz above 28 000 kHz to 10 500 MHz inclusive, and in GHz above 10
500 MHz, and enter the letter k, M or G, as appropriate. |
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Radiation Hazard
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| Information on this matter can be obtained from the
local Area Office of HM Factory Inspectorate. The address and telephone number may be
found under "Health and Safety Executive" in the telephone directory. |
Enquiries
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| If you have any queries in completing the application
form or require further information please contact: RA2/FTSLU
Radiocommunications Agency
Wyndham House
189 Marsh Wall
London E14 9SX
Tel: 020 7211 0300
Fax: 020 7211 0112
Website: www.radio.gov.uk |