1、W 2326434 0007777 9 W _ T/R 75-04 E Page 1 Recommendation T/R 75-04 (Odense 1986) EXCHANGE OF DATA BETWEEN ADMINISTRATIONS AND BETWEEN ADMINISTRATIONS AND INTERNATIONAL ORGANISATIONS RELATING TO SPACE SYSTEMS Recommendation proposed by the “Radiocommunications” Working Group T/WG 3 (R) Revised text
2、of Recommendation adopted by the “Telecotimimicatiois” Committee: “The European Conference of Postal and Telecommunications Administrations, considering (a) that it is a matter of greatest interest that Administrations should be able to exchange information relating to frequency assignments to stati
3、ons of space systems in a standardized form, (b) that the administration of space systems encompasses four major categories of operation which require the exchange of data between Administrations or between Administrations and international organizations, namely: the advance publication of satellite
4、 networks, coordination between satellite networks, coordination between earth stations and terrestrial stations, and the notification to the IFRB of frequency assignments to stations of space systems (space stations and earth stations), (c) that the presentation of information in a standardized for
5、m facilitates processing by computer, (d) that in recent years the cost to CEPT Administrations of frequency administration has significantly increased with the substantial growth in number of satellite networks involving or affecting member countries of the CEFT. recommends that Administrations exc
6、hanging information relating to space systems should do so using the relevant information and the format indicated in the Annex to this Recommendation.” Edition of September 15, 1988 - m 2326434 0007778 O m TIR 75-04 E Page 2 Explanatory note on the presentation of information in the following Annex
7、 The information is set out in four columns: - The name of the data appears in the first column. Their exact definitions may be found in Appendices 3 and 4 - The type of data appears in the second column; this may be numeric (NUM), alphanumeric (ALF) or graphic - The format of the data appears in th
8、e third column. This format is as follows: of the Radio Regulations and in IFRB Circular No. 536. (GW. Alphaniirneric data are given either in the form X(N), where N is the number of characters, or else showing the exact position of each type of character. (For example: Geographical coordinates of t
9、he earth station: 999 x 9999 - 99 x 9999); Integral numerical data are given either in the form 9(N), where N is the number of characters, or in an expanded form. (For example: 99.9x () 9.99 () TIR 75-04 E Page 3 Remarks X = G Geostationary Orbit X = N Non-geostationary Orbit X = E East X = W West X
10、 = E East X = W West The visible arc must be given West to East X = E East X = W West If X = D the period is expressed If X = H the period is expressed in days and hours in hours and minutes Refer to corresponding Annex For symbols refer to IFRB circular No. 536 The first X may be E or W The le seco
11、nd X may be N os S x (9) - +99.9 dB Refer to corresponding Annex x (4) 999.9x; 99.9x (:) 9.99 (=) For symbols refer to IFRB circular No. 536 The first X may be E or W The second X may be N or S Edition of Septeinher IS. 1988 232b414 0007780 9 TIR 75-04 E Page 4 1.3. Characteristics of the satellite
12、transponder (to be given for each transponder) Name of data Type Identity of the transponder (name or ALF number) Central transmitting frequency of the ALF transponder Central receiving frequency of the transponder ALF Assigned frequency band NUM Transmitting antennas associated ALF with the transpo
13、nder Receiving antennas associated with ALF the transponder Total peak envelope power of the NUM transponder Maximum power density per Hz NUM Receiving system noise temperature NUM of the satellite 1.4. Other data relating to the satellite Class of station ALF Nature of service ALF Operating lifetim
14、e of the satellite Date (foreseen or actual) of bringing into use NUM ALF Remarks 99999.99999X Hz K Kilo x= M Mega G Giga 99999.99999X Hz K Kilo x= M Mega G Giga 9 (7), 9 (1) kHz x (9) f 99.9 dBW & 99.9 dB (W/Hz) 9 (5) (KI For code refer to IFRB circular No. 536 For code refer to IFRB circular No. 5
15、36 2. CHARACITRISTICS RELATING TO EARTH STATIONS 2.1. Name of earth station ALF Country or geographical area in ALF which earth station is located Geographical coordinates of earth ALF station (degrees, minutes and seconds) Altitude NUM Angle of elevation of the horizon TABLE around earth station or
16、 GRA Standard defined ALF transmission/reception zone (zone represented by a symbol) Types of earth station at this site Minimum angle of elevation of the earth station antenna Data relating to each site ALF NUM x (20) x (3) Symbol of the Preface to the International Frequency List X = E or W for th
17、e first X X = N or S for the second X Refer to corresponding Annex 999x9999 - 99x9999 & 9999 m Edition of September 15. 1988 - W 232bLi14 000778L O W TIR 75-04 E Page 5 2.2 Data relating to each type of earth station Name of data Type Type of earth station ALF Frequency band ALF Isotropic gain of th
18、e antenna NUM when transmitting Isotropic gain of the antenna NUM when receiving Radiation pattern of the antenna ALF when transmitting GRA Radiation pattern of the antenna ALF when receiving GRA Polarization of the antenna ALF when transmitting Polarization of the antenna ALF when receiving Width o
19、f main radiation beam when NUM transmitting Width of main radiation beam when NUM receiving Receiving system noise temperature NUM of the earth station 2.3. Other data relating to the earth station Class of station ALF Nature of service ALF Date (foreseen or actual) of bringing into use ALF & 99.9 d
20、B orx (12) orX (12) 3. CHARACTERISTICS RELATING TO THE CARRIERS 3.1. For each carrier Name or number of the transponder(s) used for the type of carrier Maximum value of peak envelope power supplied to the input of the antenna - for the earth station - for the satellite Maximum power density per Hz C
21、lass of emission Indication, if possible, of the frequency (-ies) used for the type of carrier Necessary (occupied) bandwidth Bandwidth allotted on the satellite Edition of September 15, 1988 Remarks Refer to corresponding Annex Refer to corresponding Anuex For code refer to IFRB circular No. 536 Fo
22、r code refer to IFRB circular No. 536 For code refer to IFRB circular No. 536 For code refer to IFRB circular No. 536 ALF NUM NUM NUM ALF ALF NUM NUM f 99.9 dBW f 99.9 dBW f 99.9 dB (W/Hz) N 99999.99999X Hz K Kilo x= M Mega G Giga x (5) 9 (7), 9 (1) kHz 9 (7), 9 (1) kHz W 232bYLY 0007782 2 = TIR 75-
23、04 E Page 6 Name of data Telephone channel capacity of each carrier of this type Highest frequency of the baseband Lowest frequency of the baseband R.m.s. frequency deviation of the O dBmO test-tone R.m.s. frequency deviation of a multi-channel signal Characteristics of the energy dispersal where re
24、levant Peak-to-peak frequency deviation Sweep frequency of the energy dispersal waveform Pre-emphasis characteristics 3.3. For TV/FM carriers Type of multiplexing of the video signal and the sound signal(s) or other signal(s) Standard of the TV signal - TV system - Colour system Pre-emphasis charact
25、eristics Frequency deviation for the reference frequency of the pre-emphasis characteristic 3.4. For digital carriers Bit rate Type of modulation and number of phases Type of demodulation (coherent or differential) 3.2. For FDM/FM or SCPC/FM carriers Type NUM NUM NUM NUM NUM NUM NUM ALF ALF - NUM AL
26、F ALF ALF Format 9 (4) 9 (4) kHz 9 (4) kHz 9 (4) kHz 9 (4) kHz 9 (4) kHz 9 (4) kHz Remarks Refer to corresponding Annex Refer to corresponding Annex Refer to corresponding Annex 9 (4) kHz For code refer to IFRB circular No. 536 For code refer to IFRB circular No. 536 Refer to corresponding Annex 999
27、X bit/s X = K Kilo x (5) X = M Mega 4. OTKER CHARACTERISTICS ASSOCL-TED WIT1 THE S Minimum equivalent noise NUM 9 (5) (K) temperature of the satellite link Associated transmission gain NUM rt 99.9 (dB) weekly circular in which advance publication of the satellite network appeared weekly circular in which the request for coordination with other satellite networks appeared Annexed special section of the IFRB ALF x (16) Annexed special section of the IFRB ALF x (16) ,TE1 C = Coherent D = Differential ITE NETWORK Edition of September 15. 1978
