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Footnotes to National Frequency Allocation of Japan (Column 4) J8A In the maritime mobile service, the frequency bands 415-495 kHz and 505-526.5 kHz are limited to radiotelegraphy and may also be used for the NAVDAT system in accordance with the most recent version of Recommendation ITU-R M.2010, subject to agreement between interested and affected administrations. J1 In authorizing the use of frequencies below 8.3kHz, it shall be ensured NAVDAT transmitting stations are limited to coast stations. that no harmful interference is thereby caused to the services to which the bands above 8.3kHz are allocated. J9 In order to protect the intermediate frequencies of medium-wave broadcasting receivers, assignment of frequencies in the band 450-460 kHz is J2 Use of this frequency band by stations in the meteorological aids restricted to cases in which operation in that band does not cause harmful service is limited to passive use only. In this frequency band, meteorological aids interference to the reception of standard broadcasting signals. stations shall not claim protection from stations of the radionavigation service submitted for notification to the Bureau prior to 1 January 2013. For sharing J10 When establishing the radionavigation coast stations in the NAVTEX between stations of the meteorological aids service and stations in the service on the frequencies 490kHz, 518kHz and 4209.5kHz, it is necessary to radionavigation service submitted for notification after this date, Recommendation coordinate the operating characteristics in accordance with the procedures of the ITU-R RS.1881 should be applied. International Maritime Organization (IMO) (see Resolution 339 (Rev.WRC-97)). J3 The use of this frequency band by the maritime mobile service is J10A The frequency band 495-505 kHz is used for the international NAVDAT limited to class A1A or F1B emissions by the coast stations only. However, the use system as described in the most recent version of Recommendation ITU-R M.2010. of class J2B or J7B emissions may be authorized to coast stations on condition that NAVDAT transmitting stations are limited to coast stations. those emissions do not exceed the necessary bandwidth normally used for class A1A or F1B emissions. J11 The maximum equivalent isotropically radiated power (e.i.r.p.) of stations in the amateur service using frequencies in this frequency band shall not J4 The stations of services to which this band is allocated may transmit exceed 1 W. In this frequency band, stations in the amateur service shall not cause standard frequency and time signals. Such stations shall be afforded protection from harmful interference to, or claim protection from, stations of the aeronautical harmful interference. radionavigation service. J5 The use of this frequency band by the fixed service is limited to class J12 The frequency 490kHz is to be used exclusively for the transmission by A1A, F1B, A2C, A3C, F1C or F3C emissions. coast stations of navigational and meteorological warnings and urgent information to ships, by means of narrow-band direct-printing telegraphy. In using the band J6 The use of this frequency band by the maritime mobile service is 415-495kHz for the aeronautical radionavigation service, it shall be ensured that no limited to class A1A, F1B, A2C, A3C, F1C, F3C, J2B, or J7B emissions. harmful interference is caused to the frequency 490kHz. In using the frequency band 472-479kHz for the amateur service, it shall ensure that no harmful interference is J7 The stations of the amateur service operating in this band shall not caused to the frequency 490kHz. exceed an equivalent isotropic radiated power (e.i.r.p.) of 1W or cause harmful interference to stations of the radionavigation service operating in the countries J13 The frequency 518kHz is to be used exclusively for transmission by listed on No.5.67 of the RR. coast stations in the international NAVTEX service of meteorological and navigational warnings and urgent information to ships, by means of narrow-band J8 This frequency band in the radionavigation land stations of the maritime direct-printing telegraphy. radionavigation service may be used to transmit the differential GPS data and supplementary navigational information. J14 The use of this frequency band by broadcasting services is subject to - 62 - conformity with the Regional Agreements (Geneva, 1975), (Notification No.810 of J24 The frequencies 4210kHz, 6314kHz, 8416.5kHz, 12579kHz, the Ministry of Posts and Telecommunications, 1976), on the use of the MF band in 16806.5kHz, 19680.5kHz, 22376kHz and 26100.5kHz are the international Regions 1 and 3 and the LF band in Region 1 by the broadcasting services. frequencies for the transmission of Maritime Safety Information (MSI). J15 This frequency allocated to the broadcasting services or the broadcasting-satellite services shall be that stipulated in Article 26, Paragraph 2(5) a), J25 In principle, the A1A radio frequency 4630kHz is used exclusively for of the Radio Law. setting up an emergency communication channel, and once the channel is open, the emergency communication is carried on the radio waves regularly used. However, J16 The frequencies 2174.5kHz, 4177.5kHz, 6268kHz, 8376.5kHz, this limitation may be eased when emergency communication through regular radio 12520kHz and 16695kHz are international distress frequencies for narrow-band waves is impossible. direct-printing telegraphy. J26 Stations in the radiolocation service shall not cause harmful interference J17 The frequency 2182kHz is an international distress, calling and to, or claim protection from, stations operating in the fixed or mobile services. response frequency for radiotelephony, and is to be used exclusively for class J3E Applications of the radiolocation service are limited to oceanographic radars emissions. This frequency’s guard band is 2173.5-2190.5kHz. operating in accordance with Resolution 612 (Rev.WRC-12). J27 The use of the bands 5900-5950kHz, 7300-7350kHz, 9400-9500kHz, J18 The carrier frequencies 2182kHz, 3023kHz, 5680kHz, 8364kHz as well 11600-11650kHz, 12050-12100kHz, 13570-13600kHz, 13800-13870kHz, as the frequencies 121.5MHz, 156.525MHz, 156.8MHz, 243MHz, 10003kHz, 15600-15800kHz, 17480-17550kHz and 18900-19020kHz by the broadcasting 14993kHz, and 19993kHz may also be used, in accordance with the procedures for service is subject to the application of the procedure of Article 12, and is encouraged terrestrial radiocommunication services, for search and rescue operations concerning to facilitate the introduction of digitally modulated emissions in accordance with the manned space vehicles. The bandwidth of any individual transmission shall not provisions of Resolution 517 (Rev.WRC-19). exceed ± 3 kHz. J28 This band is allocated to the fixed service on a primary basis and to the J19 The frequencies 2187.5kHz, 4207.5kHz, 6312kHz, 8414.5kHz, mobile service except aeronautical mobile (R) service on a secondary basis. 12577kHz and 16804.5kHz are international distress frequencies for digital selective J29 The following bands are designated for industrial, scientific and medical calling. (ISM) applications based on the results of ITU-R research. J20 The carrier frequencies 3023kHz and 5680kHz may also be used by 6765-6795kHz (center frequency 6780kHz), stations of the maritime mobile service engaged in coordinated search and rescue 61-61.5GHz (center frequency 61.25GHz), operations. 122-123GHz (center frequency 122.5GHz), and 244-246GHz (center frequency 245GHz) J21 The band 3155-3195kHz may also be used for low-power wireless Additional assignment of frequencies in the following bands to stations hearing aids. of the fixed and land mobile services is suspended for the time being. 6765 - 6795kHz (center frequency 6780kHz) J22 The carrier frequencies 4125kHz and 6215kHz are the frequencies 244 - 246GHz (center frequency 245GHz) auxiliary to the carrier frequency 2182kHz. These frequencies are to be international calling and response frequencies for radiotelephony. J30 This band may be used by stations in the fixed service and the land J23 The frequency 4209.5kHz is used exclusively for the transmission by mobile service on condition that harmful interference is not caused to the coast stations of meteorological and navigational warnings and urgent information to broadcasting service. When using frequencies for these services, administrations are ships by means of narrow-band direct-printing techniques. urged to use the minimum power required and to take account of the seasonal use of - 63 - frequencies by the broadcasting service published in accordance with the Radio 1718.8-1722.2MHz, 42.77-42.87GHz, 172.31-172.65GHz, Regulations. 2655-2690MHz, 43.07-43.17GHz, 173.52-173.85GHz, J31 The stations of services to which the band 7995-8005kHz is allocated 3260-3267MHz, 43.37-43.47GHz, 195.75-196.15GHz, may transmit standard frequency and time signals. 3332-3339MHz, 48.94-49.04GHz, 209-226GHz, 3345.8-3352.5MHz, 76-86GHz, 241-250GHz, J32 The carrier frequencies 8291kHz, 12290kHz and 16420kHz are distress 6650-6675.2MHz, 92-94GHz, 252-275GHz and calling frequencies for radiotelephony. J33 Stations in the radiolocation service shall not cause harmful interference J37 The following bands are designated for industrial, scientific and medical to, or claim protection from, stations operating in the fixed service. Applications of (ISM) applications. Radiocommunication services operating within these bands must the radiolocation service are limited to oceanographic radars operating in accordance
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