Overview of ARIB Standards (STD-T54)
1. Overview
STD Number | ARIB STD-T54 |
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Standard Name | Auditory Assistance Device for Specified Low Power Radio Station |
Enactment Date | 08.08.1997 |
General Description | This standard specifies radio equipment for use of auditory assistance radio microphone to transmit speech voice or other sound to assist persons with a hearing loss for hearing, which is one of specified low power radio station regulated in the Article 6 of the Regulations for Enforcement of Radio Act. |
2. Amendment History
Ver. | Amendment or Enactment Date | Amendment summary |
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3.0 | 09.26.2007 | Newly specify “Chapter 3 Technical requirements for radio equipment using 169 MHz frequency band” in accordance with institutionalization of introducing auditory assistance radio microphone using 169 MHz band which is the same frequency band as those of the rest of the world. Add “Annex 1 Occupied bandwidth symbol, channel name of channel number, channel indication, operating frequency and grouping examples of radio equipment using radio frequency band of 169 MHz” and “Appendix 2 Operational Guidelines for radio equipment for auditory assistance radio microphone using radio frequency band of 169 MHz” for reference. Change the description of measurement method, to secure consistency with the Ordinance Concerning Technical Regulations Conformity Certification etc. of Specified Radio Equipment, as “measurement methods shall be in accordance with the Notification of the Ministry of Internal Affairs and Communications related with paragraph 1-(3) of Table No. 1 of the Ordinance Concerning Technical Regulations Conformity Certification etc. of Specified Radio Equipment ”. |
2.1 | 11.30.2005 | Revise definitions, tolerance limits, interim measure for the revision, and measurement method on spurious emission, etc. in accordance with amendment concerning technical criterion on Permissible Values for Spurious Emission, and so on. |
2.0 | 02.02.1999 | Change ‘Call name memory device’ to ‘Interference avoidance function’, etc. |
1.0 | 08.08.1997 | Enactment |