PART 7—FOOTNOTES TO ARTICLE 8 OF THE ITU RADIO REGULATIONS
444 Administrations authorising the use of frequencies below 9 kHz shall ensure that no harmful interference is caused thereby to the services to which the bands above 9 kHz are allocated (see No. 1816).
445 Administrations conducting scientific research using frequencies below 9 kHz are urged to advise other administrations that may be concerned in order that such research may be afforded all practicable protection from harmful interference.
446 Additional allocation: in Bulgaria, Hungary, Poland, the German Democratic Republic, Czechoslovakia and the U.S.S.R., the band 14 to 17 kHz is also allocated to the radionavigation service on a permitted basis.
447 The stations of services to which the bands 14 to 19.95 kHz and 20.05 to 70 kHz and in Region 1 also the bands 72 to 84 kHz and 86 to 90 kHz are allocated may transmit standard frequency and time signals. Such stations shall be afforded protection from harmful interference. In Bulgaria, Hungary, Mongolia, Poland, Czechoslovakia and the USSR, the frequencies 25 kHz and 50 kHz will be used for this purpose under the same conditions.
448 The use of the bands 14--19.95 kHz, 20.05--70 kHz and 70--90 kHz (72--84 kHz and 86--90 kHz in Region 1) by the maritime mobile service is limited to coast radiotelegraph stations (A1A and F1B only). Exceptionally, the use of class J2B or J7B emissions is authorised subject to the necessary bandwidth not exceeding that normally used for class A1A or F1B emissions in the band concerned.
449 Additional allocation: in Bulgaria, Hungary, Poland, the German Democratic Republic, Czechoslovakia and the U.S.S.R., the band 67 to 70 kHz is also allocated to the radionavigation service on a permitted basis. 450 Different category of service: in Bangladesh, Iran and Pakistan, the allocation of the bands 70 to 72 kHz and 84 to 86 kHz to the fixed and maritime mobile services is on a primary basis (see No. 425).
451 In the bands 70--90 kHz (70--86 kHz in Region 1) and 110--130 kHz (112-- 130 kHz in Region 1), pulsed radionavigation systems may be used on condition that they do not cause harmful interference to other services to which these bands are allocated.
452 In Region 2, the establishment and operation of stations in the maritime radionavigation service in the bands 70 to 90 kHz and 110 to 130 kHz shall be subject to agreement obtained under the procedure set forth in Article 14 with administrations whose services, operating in accordance with the Table, may be affected. However, stations of the fixed, maritime mobile and radiolocation services shall not cause harmful interference to stations in the maritime radionavigation service established under such agreements.
453 Administrations which operate stations in the radionavigation service in the band 90 to 110 kHz are urged to coordinate technical and operating characteristics in such a way so as to avoid harmful interference to the services provided by these stations.
Part Part 7 - Radiocommunications-Australian Spectrum Plan - FOOTNOTES TO ARTICLE 8 OF THE ITU RADIO REGULATIONS | Zoe
453A In the band 90--110 kHz, the United Kingdom may continue to use its coast radiotelegraph stations in operation on 14 September 1987, on a secondary basis.
454 Only classes A1A or F1B, A2C, A3C, F1C or F3C emissions are authorised for stations of the fixed service in the bands allocated to this service between 90 kHz and 160 kHz (148.5 kHz in Region 1) and for stations of the maritime mobile service in the bands allocated to this service between 110 and 160 kHz (148.5 kHz in Region 1). Exceptionally, class J2B or J7B emissions are also authorised in the bands between 110 and 160 kHz (148.5 kHz in Region 1) for stations of the maritime mobile service.
455 Different category of service: in Bangladesh, Iran and Pakistan, the allocation of the bands 112 to 117.6 kHz and 126 to 129 kHz to the fixed and maritime mobile services is on a primary basis (see No. 425).
456 Different category of service: in the Federal Republic of Germany, the allocation of the band 115 to 117.6 kHz to the fixed and maritime mobile services is on a primary basis (see No. 425) and to the radionavigation service on a secondary basis (see No. 424).
457 Additional allocation: in Bulgaria, Hungary, Mongolia, Poland, the German Democratic Republic, Romania, Czechoslovakia and the U.S.S.R., the band 130 to 148.5 kHz is also allocated to the radionavigation service on a secondary basis. Within and between these countries this service shall have an equal right to operate.
459 In the Region 2 polar areas (north of 60 N and south of 60 S), which are subject to auroral disturbances, the aeronautical fixed service is the primary service in the band 160 to 190 kHz.
460 Alternative allocation: in Angola, Botswana, Burundi, the Congo, Malawi, Rwanda, South Africa and Zaire, the band 160 to 200 kHz is allocated to the fixed service on a primary basis.
461 Additional allocation: in Somalia, the band 200 to 255 kHz is also allocated to the aeronautical radionavigation service on a primary basis.
462 Alternative allocation: in Angola, Botswana, Burundi, Cameroon, the Central African Republic, the Congo, Ethiopia, Kenya, Lesotho, Madagascar, Malawi, Mozambique, Namibia, Nigeria, Oman, Rwanda, South Africa, Swaziland, Tanzania, Chad, Zaire, Zambia and Zimbabwe, the band 200 to 283.5 kHz is allocated to the aeronautical radionavigation service on a primary basis.
463 Different category of service: in Sudan and Yemen (P.D.R. of), the allocation of the band 255 to 283.5 kHz to the aeronautical radionavigation service is on a primary basis (see No. 425).
464 Alternative allocation: in Tunisia, the band 255 to 283.5 kHz is allocated to the broadcasting service on a primary basis.
464A In Region 1, the change of the band limit from 285 kHz to 283.5 kHz shall take place on 1 February 1990 (see Resolution 500).
465 Norwegian stations of the fixed service situated in northern areas (north of 60 N) subject to auroral disturbances are allowed to continue operation on four frequencies in the bands 283.5 to 490 kHz and 510 to 526.5 kHz.
466 In the band 285 to 325 kHz (283.5 to 325 kHz in Region 1), in the maritime radionavigation service, radio beacon stations may also transmit supplementary navigational information using narrowband techniques, on condition that the prime function of the beacon is not significantly degraded.
466A Additional allocation: In Region 1, the frequency band 285.3--287.5 kHz is also allocated to the maritime radionavigation service (other than radio beacons) on a permitted basis.
467 Different category of service: in the U.S.S.R. and the Black Sea areas of Bulgaria, Romania and Turkey, the allocation of the band 315 to 325 kHz to the maritime radionavigation service is on a primary basis (see No. 425) under the following conditions:
(a) in the Black Sea and White Sea areas, the maritime radionavigation service is the primary service and the aeronautical radionavigation service is the permitted service;
(b) in the Baltic Sea area, the assignment of frequencies in this band to new stations in the maritime or aeronautical radionavigation services shall be subject to prior consultation between the administrations concerned. 468 The frequency 410 kHz is designated for radio direction-finding in the maritime radionavigation service. The other radionavigation services to which the band 405 to 415 kHz is allocated shall not cause harmful interference to radio direction-finding in the band 406.5 to 413.5 kHz.
469 Different category of service: in Afghanistan, Australia, China, the Overseas French Territories of Region 3, India, Indonesia, the Islamic Republic of Iran, Japan, Pakistan, Papua New Guinea and Sri Lanka, the allocation of the band 415--495 kHz to the aeronautical radionavigation service is on a permitted basis. Administrations in these countries shall take all practical steps necessary to ensure that aeronautical radionavigation stations in the band 435--495 kHz do not cause interference to reception by coast stations of ship stations transmitting on frequencies designated for ship stations on a world-wide basis (see No. 4237).
469A Different category of service: in Cuba, the United States of America and Mexico the allocation of the band 415--435 kHz to the aeronautical radionavigation service is on a primary basis.
470 The use of the bands 415 to 495 kHz and 505 to 526.5 kHz (505 to 510 kHz in Region 2) by the maritime mobile service is limited to radiotelegraphy. 470A In Region 2, the use of the band 435--495 kHz by the aeronautical radionavigation service is limited to non-directional beacons not employing voice transmission.
471 The bands 490--495 kHz and 505--510 kHz shall be subject to the provisions of No. 3018 until the entry into force of the reduced guardband in accordance with Resolution 210 (Mob-87).
472 The frequency 500 kHz is an international distress and calling frequency for Morse radiotelegraphy. The conditions for its use are prescribed in Articles 37, 38, N38 and 60.
472A In the maritime mobile service, the frequency 490 kHz is, from the date of full implementation of the GMDSS (see Resolution 331(Mob-87)), to be used exclusively for the transmission by coast stations of navigational and meteorological warnings and urgent information to ships, by means of narrow-band direct-printing telegraphy. The conditions for use of the frequency 490 kHz are prescribed in Articles N38 and 60, and Resolution 329(Mob-87). In using the band 415--495 kHz for the aeronautical radionavigation service, administrations are requested to ensure that no harmful interference is caused to the frequency 490 kHz.
474 The conditions for the use of frequency 518 kHz by the maritime mobile service are prescribed in Articles 38, N38 and 60 (see Resolution 324(Mob-87) and Article 14A).
475 In the band 515.5 to 526.5 kHz, Austria may continue to operate only those broadcasting stations listed in Additional Protocol III to the Final Acts of the Regional Administrative LF/MF Broadcasting Conference (Regions 1 and 3), Geneva, 1975. This operation is allowed until the entry into force of a revision of the Geneva Plan, 1975 and subject to not causing harmful interference to the maritime mobile and aeronautical radionavigation services.
476 Additional allocation: in the United Kingdom, the band 519.5 to 526.5 kHz is also allocated to the broadcasting service on a secondary basis for the transmission of public utility information.
477 In Region 2, in the band 525 to 535 kHz the carrier power of broadcasting stations shall not exceed 1 kilowatt during the day and 250 watts at night. 478 Additional allocation: in Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe, the band 526.5 to 535 kHz is also allocated to the mobile service on a secondary basis.
479 Additional allocation: in China, the band 526.5 to 535 kHz is also allocated to the aeronautical radionavigation service on a secondary basis.
480 In Region 2, the use of the band 1 605 to 1 705 kHz by stations of the broadcasting service is subject to the Plan established by the Regional Administrative Radio Conference (Rio de Janiero, 1988).
In Region 2, in the band 1 625 to 1 705 kHz, the relationship between the broadcasting, fixed and mobile services is shown in No. 419. However, the examination of frequency assignments to stations of the fixed and mobile services in the band 11 625 to 1 705 kHz under No. 1241 shall take account of the allotments appearing in the Plan established by the Regional Administrative Radio Conference (Rio de Janiero, 1988).
480A In the band 1 605--1 1705 kHz, in cases where a broadcasting station of Region 2 is concerned, the service area of the maritime mobile stations in Region 1 shall be limited to that provided by ground-wave propagation. 481 In Region 2, until the dates decided by the regional administrative radio conference referred to in No. 480, the band 1 605 to 1 705 kHz is allocated to the fixed, mobile and aeronautical radionavigation services on a primary basis and to the radiolocation service on a secondary basis (see Recommendation 504).
482 Additional allocation: In Australia, Indonesia, New Zealand, the Philippines, Singapore, Sri Lanka and Thailand, the band 1 606.5 to 1 705 kHz is also allocated to the broadcasting service on a secondary basis.
483 Different category of service: In Bulgaria, Hungary, Mongolia, Nigeria, Poland, the German Democratic Republic, Chad, Czechoslovakia and the U.S.S.R., the allocation of the bands 1 606.5 to 1 625 kHz, 1 635 to 1 800 kHz and 2 107 to 2 160 kHz to the fixed and land mobile services is on a primary basis (see No. 425).
484 Some countries of Region 1 use radiodetermination systems in the bands 1 606.5 to 1 625 kHz, 1 635 to 1 800 kHz, 1 850 to 2 160 kHz, 2 194 to 2 300 kHz, 2 502 to 2 850 kHz and 3 500 to 3 800 kHz. The establishment and operation of such systems are subject to agreement obtained under the procedure set forth in Article 14. The radiated mean power of these stations shall not exceed 50 watts.
485 Additional allocation: in Angola, Bulgaria, Hungary, Mongolia, Nigeria, Poland, the German Democratic Republic, Chad, Czechoslovakia and the U.S.S.R., the bands 1 625 to 1 635 kHz, 1 800 to 1 810 kHz and 2 160 to 2 170 kHz are also allocated to the fixed and land mobile services on a primary basis subject to agreement obtained under the procedure set forth in Article 14.
486 In Region 1, in the bands 1 625 to 1 635 kHz, 1 800 to 1 810 kHz and 2 160 to 2 170 kHz (except in the countries listed in No. 485 and those listed in No. 499 for the band 2 160 to 2 170 kHz), existing stations in the fixed and mobile, except aeronautical mobile, services (and stations of the aeronautical mobile (OR) service in the band 2 160 to 2 170 kHz) may continue to operate on a primary basis until satisfactory replacement assignments have been found and implemented in accordance with Resolution 38.
487 In Region 1, the establishment and operation of stations of the radiolocation service in the bands 1 625 to 1 635 kHz, 1 800 to 1 810 kHz and 2 160 to 2 170 kHz shall be subject to agreement obtained under the procedure set forth in Article 14 (see also No. 486). The radiated mean power of radiolocation stations shall not exceed 50 watts. Pulse systems are prohibited.
488 In the Federal Republic of Germany, Denmark, Finland, Hungary, Ireland, Israel, Jordan, Malta, Norway, Poland, the German Democratic Republic, the United Kingdom, Sweden, Czechoslovakia and the U.S.S.R., administrations may allocate up to 200 kHz to their amateur service in the bands 1 715 to 1 800 kHz and 1 850 to 2 000 kHz. However, when allocating the bands within this range to their amateur service, administrations shall, after prior consultation with administrations of neighbouring countries, take such steps as may be necessary to prevent harmful interference from their amateur service to the fixed and mobile services of other countries. The mean power of any amateur station shall not exceed 10 watts.
489 In Region 3, the Loran system operates either on 1 850 kHz or 1 950 kHz, the bands occupied being 1 825--1 875 kHz and 1 925--1 975 kHz respectively. Other services to which the band 1 800--2 000 kHz is allocated may use any frequency therein on condition that no harmful interference is caused to the Loran system operating on 1 850 or 1 950 kHz.
490 Alternative allocation: in the Federal Republic of Germany, Angola, Austria, Belgium, Bulgaria, Cameroon, the Congo, Denmark, Egypt, Spain, Ethiopia, France, Greece, Italy, Lebanon, Luxembourg, Malawi, the Netherlands, Portugal, Syria, the German Democratic Republic, Somalia, Tanzania, Tunisia, Turkey and the U.S.S.R., the band 1 810 to 1 830 kHz is allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis.
491 Additional allocation: in Saudi Arabia, Iraq, Israel, Libya, Poland, Romania, Chad, Czechoslovakia, Togo and Yugoslavia, the band 1 810 to 1 830 kHz is also allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis.
492 In Region 1, the use of the band 1 810 to 1 850 kHz by the amateur service is subject to the condition that satisfactory replacement assignments have been found and implemented in accordance with Resolution 38, for frequencies to all existing stations of the fixed and mobile, except aeronautical mobile, services operating in this band (except for the stations of the countries listed in Nos. 490, 491 and 493). On completion of satisfactory transfer, the authorisation to use the band 1 810 to 1 830 kHz by the amateur service in countries situated totally or partially north of 40 degrees N shall be given only after consultation with the countries mentioned in Nos. 490 and 491 to define the necessary steps to be taken to prevent harmful interference between amateur stations and stations of other services operating in accordance with Nos. 490 and 491.
493 Alternative allocation: in Burundi and Lesotho, the band 1 810 to 1 850 kHz is allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis.
494 Alternative allocation: in Argentina, Bolivia, Chile, Mexico, Paraguay, Peru, Uruguay and Venezuela, the band 1 850 to 2 000 kHz is allocated to the fixed, mobile except aeronautical mobile, radiolocation and radionavigation services on a primary basis.
495 In Region 1, in making assignments to stations in the fixed and mobile services in the bands 1 850 to 2 045 kHz, 2 194 to 2 498 kHz, 2 502 to 2 625 kHz and 2 650 to 2 850 kHz, administrations should bear in mind the special requirements of the maritime mobile service.
496 In Region 1, the use of the band 2 025 to 2 045 kHz by the meteorological aids service is limited to oceanographic buoy stations.
497 In Region 2, except in Greenland, coast stations and ship stations using radiotelephony in the band 2 065--2 107 kHz shall be limited to class R3E or J3E emissions and to a peak envelope power not exceeding 1 kW. Preferably, the following carrier frequencies should be used: 2 065.0 kHz, 2 079.0 kHz, 2 082.5 kHz, 2 086.0 kHz, 2 093.0 kHz, 2 096.5 kHz, 2 100.0 kHz and 2 103.5 kHz. In Argentina, Brazil and Uruguay, the carrier frequencies 2 068.5 kHz and 2 075.5 kHz are also used for this purpose, while the frequencies within the band 2 072--o 2 075.5 kHz are used as provided in No. 4323 BD.
498 In Regions 2 and 3, provided no harmful interference is caused to the maritime mobile service, the frequencies between 2 065 kHz and 2 107 kHz may be used by stations of the fixed service communicating only within national borders and whose mean power does not exceed 50 watts. In notifying the frequencies, the attention of the International Frequency Registration Board should be drawn to these provisions.
499 Additional allocation: In Saudi Arabia, Botswana, Ethiopia, Iraq, Lesotho, Libya, Malawi, Somalia, Swaziland and Zambia, the band 2 160 to 2 170 kHz is also allocated to the fixed and mobile, except aeronautical mobile (R), services on a primary basis. The mean power of stations in these services shall not exceed 50 watts.
500 The carrier frequency 2 182 kHz is an international distress and calling frequency for radiotelephony. The conditions for the use of the band 2 173.5- -2 190.5 kHz are prescribed in Articles 37, 38, N38 and 60.
500A The frequencies 2 187.5 kHz, 4 207.5 kHz, 6 312 kHz, 8 414.5 kHz, 12 577 kHz and 16 804.5 kHz are international distress frequencies for digital selective calling. The conditions for use of these frequencies are prescribed in Article N38.
500B The frequencies 2 174.5 kHz, 4 177.5 kHz, 6 268 kHz, 8 376.5 kHz, 12 520 kHz and 16 695 kHz are international distress frequencies for narrow-band direct-printing telegraphy. The conditions for the use of these frequencies are prescribed in Article N38.
501 The carrier frequencies 2 182 kHz, 3 023 kHz, 5 680 kHz, 8 364 kHz and the frequencies 121.5 MHz, 156.8 MHz and 243 MHz may also be used, in accordance with the procedures in force for terrestrial radiocommunication services, for search and rescue operations concerning manned space vehicles.
The conditions for the use of these frequencies are prescribed in Articles 38 and N38.
The same applies to the frequencies 10 003 kHz, 14 993 kHz and 19 993 kHz, but in each of these cases emissions must be confined in a band of 3 kHz about the frequency.
502 Alternative allocation: in Belgium, Cyprus, Denmark, Spain, France, Greece, Iceland, Italy, Malta, Norway, the Netherlands, Portugal, the United Kingdom, Singapore, Sri Lanka, Sweden, Turkey and Yugoslavia, the band 2 194 to 2 300 kHz is allocated to the maritime mobile service on a primary basis and to the fixed and land mobile services on a permitted basis. 503 For the conditions for the use of the bands 2 300 to 2 495 kHz (2 498 kHz in Region 1), 3 200 to 3 400 kHz, 4 750 to 4 995 kHz and 5 005 to 5 060 kHz by the broadcasting service, see Nos. 406 to 410, 411 and 2666 to 2673.
504 Alternative allocation: in Belgium, Cyprus, Denmark, Spain, France, Greece, Iraq, Italy, Malta, Norway, the Netherlands, Portugal, the United Kingdom, Sweden, Turkey and Yugoslavia, the band 2 502 to 2 625 kHz is allocated to the maritime mobile service on a primary basis and to the fixed and land mobile services on a permitted basis.
505 The carrier (reference) frequencies 3 023 kHz and 5 680 kHz may also be used, in accordance with Articles 38 and N38 by stations of the maritime mobile service engaged in coordinated search and rescue operations.
506 Administrations are urged to authorise the use of the band 3 155 to 3 195 kHz to provide a common worldwide channel for low power wireless hearing aids. Additional channels for these devices may be assigned by administrations in the bands between 3 155 kHz and 3 400 kHz to suit local needs. It should be noted that frequencies in the range 3 000 to 4 000 kHz are suitable for hearing aid devices which are designed to operate over short distances within the induction field.
507 Alternative allocation: in Belgium, Cameroon, Cyprus, the Ivory Coast, Denmark, Egypt, Spain, France, Greece, Iceland, Italy, Liberia, Malta, Norway, the Netherlands, the United Kingdom, Singapore, Sri Lanka, Sweden, Togo, Turkey and Yugoslavia, the band 3 155 to 3 200 kHz is allocated to the maritime mobile service on a primary basis and to the fixed and land mobile services on a permitted basis.
508 Additional allocation: in Australia, Brazil, Canada, the United States, Japan, Mexico, New Zealand, Peru and Uruguay, the band 3 230 to 3 400 kHz is also allocated to the radiolocation service on a secondary basis.
509 Additional allocation: in Honduras, Mexico, Peru and Venezuela, the band 3500 to 3750 kHz is also allocated to the fixed and mobile services on a primary basis.
510 For the use of the bands allocated to the amateur service at 3.5 MHz, 7.0 MHz, 10.1 MHz, 14.0 MHz, 18.068 MHz, 21.0 MHz, 24.89 MHz and 144 MHz in the event of natural disasters (see Resolution 640).
511 Additional allocation: in Brazil, the band 3700 to 4000 kHz is also allocated to the radiolocation service on a primary basis.
512 Alternative allocation: in Argentina, Bolivia, Chile, Ecuador, Paraguay, Peru and Uruguay, the band 3750 to 4000 kHz is allocated to the fixed and mobile, except aeronautical mobile, services on a primary basis.
513 Alternative allocation: in Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe, the band 3900 to 3950 kHz is allocated to the broadcasting service on a primary basis. The use of this band by the broadcasting service is subject to agreement obtained under the procedure set forth in Article 14 with neighbouring countries having services operating in accordance with the Table.
514 Additional allocation: in Canada, the band 3950 to 4000 kHz is also allocated to the broadcasting service on a primary basis. The power of broadcasting stations operating in this band shall not exceed that necessary for a national service within the frontier of this country and shall not cause harmful interference to other services operating in accordance with the Table.
515 Additional allocation: in Greenland the band 3950 to 4000 kHz is also allocated to the broadcasting service on a primary basis. The power of the broadcasting stations operating in this band shall not exceed that necessary for a national service and shall in no case exceed 5 kilowatts.
516 In Region 3, the stations of those services to which the band 3995-4005 kHz is allocated may transmit standard frequency and time signals.
517 The use of the band 4000--4063 kHz by the maritime mobile service is limited to ship stations using radiotelephony (see No. 4374 and Appendix 16).
518 In Afghanistan, Argentina, Australia, Botswana, China, India, Swaziland, Chad and the U.S.S.R., in the bands 4063 to 4123 kHz, 4130 to 4133 kHz and 4408 to 4438 kHz, stations of limited power in the fixed service which are situated at least 600 kilometres from the coast may operate on condition that harmful interference is not caused to the maritime mobile service.
519 On condition that harmful interference is not caused to the maritime mobile service, the frequencies in the bands 4063 to 4123 kHz and 4130 to 4438 kHz may be used exceptionally by stations in the fixed service communicating only within the boundary of the country in which they are located, with a mean power not exceeding 50 Watts.
520 The conditions for the use of the carrier frequencies 4125 kHz and 6215 kHz are prescribed in Articles 37, 38, N38 and 60.
520A The frequency 4209.5 kHz is used exclusively for the transmission by coast stations of meteorological and navigational warnings and urgent information to ships by means of narrow-band direct printing techniques (see Resolution 332(Mob-87)).
520B The frequencies 4 210 kHz, 6 314 kHz, 8 416.5 kHz, 12 579 kHz, 16 806.5 kHz, 19 680.5 kHz, 22 376 kHz and 26 100.5 kHz are the international frequencies for the transmission of Maritime Safety Information (MSI) (see Resolution 333(Mob-87) and Appendix 31).
521 Different category of service: in the U.S.S.R., the allocation of the band 5130 to 5250 kHz to the mobile, except aeronautical mobile, service is on a primary basis (see No. 425).
522 On condition that harmful interference is not caused to the maritime mobile service, the bands 6200 to 6213.5 kHz and 6220.5 to 6525 kHz may be used exceptionally by stations in the fixed service, communicating only within the boundary of the country in which they are located, with a mean power not exceeding 50 W. At the time of notification of these frequencies, the attention of the International Frequency Registration Board will be drawn to the above conditions.
524 The band 6765 to 6795 kHz (centre frequency 6780 kHz) is designated for industrial, scientific and medical (ISM) applications. The use of this frequency band for ISM applications shall be subject to special authorisation by the administration concerned, in agreement with other administrations whose radiocommunication services might be affected. In applying this provision, administrations shall have due regard to the latest relevant CCIR Recommendations.
525 Different category of service: in Mongolia and the U.S.S.R., the allocation of the band 6765 to 7000 kHz to the land mobile service is on a primary basis (see No. 425).
526 Additional allocation: in Angola, Iraq, Kenya, Rwanda, Somalia and Togo, the band 7000 to 7050 kHz is also allocated to the fixed service on a primary basis.
527 Alternative allocation: In Egypt, Ethiopia, Guinea, Libya, Madagascar, Malawi and Tanzania, the band 7000 to 7050 kHz is allocated to the fixed service on a primary basis.
528 The use of the band 7100 to 7300 kHz in Region 2 by the amateur service shall not impose constraints on the broadcasting service intended for use within Region 1 and Region 3.
529 In Region 3, the stations of those services to which the band 7995 to 8005 kHz is allocated may transmit standard frequency and time signals.
529A The conditions for the use of the carrier frequencies 8291 kHz, 12 290 kHz and 16420 kHz are prescribed in Articles 38, N38 and 60.
530 On condition that harmful interference is not caused to the broadcasting service, frequencies in the bands 9 775 to 9 900 kHz, 11 650 to 11 700 kHz and 11 975 to 12 050 kHz may be used by stations in the fixed service communicating only within the boundary of the country in which they are located, each station using a total radiated power not exceeding 24 dBW.
531 The bands 9 775 to 9 900 kHz, 11 650 to 11 700 kHz, 11 975 to 12 050 kHz, 13 600 to 13 800 kHz, 15 450 to 15 600 kHz, 17 550 to 17 700 kHz and 21 750 to 21 850 kHz are allocated to the fixed service on a primary basis subject to the procedure described in Resolution 8. The use of these bands by the broadcasting service shall be subject to provisions to be established by the World Administrative Radio Conference for the Planning of HF Bands Allocated to the Broadcasting Service (see Resolution 508). The provisions of Resolution 512 (HFBC-87) also apply. Within these bands, the date of commencement of operations in the broadcasting service on a planned channel shall not be earlier than the date of completion of satisfactory transfer, according to the procedures described in Resolution 8, of all assignments to stations in the fixed service operating in accordance with the Table and other provisions of the Radio Regulations, which are recorded in the Master Register and which may be affected by broadcasting operations on that channel.
532 The bands 12 230 to 12 330 kHz, 16 360 to 16 460 kHz, 17 360 to 17 410 kHz, 18 780 to 18 900 kHz, 19 680 to 19 800 kHz and 22 720 to 22 855 kHz are allocated to the fixed service on a primary basis subject to the procedure described in Resolution 8. The use of these bands by the maritime mobile service shall be subject to provisions to be decided by a competent world administrative radio conference. The date of commencement of operations in the maritime mobile service on a frequency in accordance with the above-mentioned provisions shall not be earlier than the date of completion of satisfactory transfer, in accordance with the procedure described in Resolution 8, of all assignments to stations in the fixed service operating in accordance with the Table and other provisions of the Radio Regulations which are recorded in the Master Register and which may be affected by maritime mobile operations on that frequency.
533 In making assignments to stations of other services to which the band 13 360 to 13 410 kHz is allocated, administrations are urged to take all practicable steps to protect the radio astronomy service from harmful interference. Emissions from space or airborne stations can be particularly serious sources of interference to the radio astronomy service (see Nos. 343 and 344 and Article 36).
534 The band 13 553 to 13 567 kHz (centre frequency 13 560 kHz) is designated for industrial, scientific and medical (ISM) applications. Radiocommunication services operating within this band must accept harmful interference which may be caused by these applications. ISM equipment operating in this band is subject to the provisions of No. 1815.
535 Additional allocation: in Afghanistan, China, the Ivory Coast, Iran and the U.S.S.R., the band 14 250 to 14 350 kHz is also allocated to the fixed service on a primary basis. Stations of the fixed service shall not use a radiated power exceeding 24 dBW.
536 In Region 3, the stations of those services to which the band 15 995 to 16 005 kHz is allocated may transmit standard frequency and time signals.
537 The band 18 068 to 18 168 kHz is allocated to the fixed service on a primary basis subject to the procedure described in Resolution 8. The use of this band by the amateur and amateur-satellite services shall be subject to the completion of satisfactory transfer of all assignments to stations in the fixed service operating in this band and recorded in the Master Register, in accordance with the procedure described in Resolution 8.
538 Additional allocation: in the U.S.S.R., the band 18 068 to 18 168 kHz is also allocated to the fixed service on a primary basis for use within the boundary of the U.S.S.R., with a peak envelope power not exceeding 1 kilowatt.
539 Alternative allocation: in Bulgaria, Hungary, Mongolia, Poland, Czechoslovakia and the U.S.S.R., the band 21 850 to 21 870 kHz is allocated to the aeronautical fixed and the aeronautical mobile (R) services on a primary basis.
540 Additional allocation: in Nigeria, the band 22 720 to 23 200 kHz is also allocated to the meteorological aids service (radiosondes) on a primary basis.