標準號：IEC 61097-9-1997
中文標準名稱：全球海上遇險和安全系統(GMDSS) 第9部分:海上呼叫用電話、數字選擇呼叫設備(DSC)和窄帶直接打印設備(NBOP)用中頻帶和高頻帶船用無線電話發射機和接收機 操作和性能要求、測試方法和要求的測試結果
英文標準名稱：Global maritime distress and safety system (GMDSS) - Part 9: Shipborne transmitters and receivers for use in the MF and HF bands suitable for telephony, digital selective calling (DSC) and narrow band direct printing (NBDP) - Operational and performance r
標準類型：U27
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：U27
國際標準分類號：33.070.40
適用范圍：This part of IEC 61097 specifies the minimum operational and performance requirements and methods of testing with required test results for transmitters and receivers capable of voice communication, digital selective calling and narrow band direct printing telegraphy for the GMDSS operating in either the medium frequency band only or in medium and high frequency bands allocated in the ITU Radio Regulations to the Maritime Mobile Service, as required by Chapter IV of SOLAS 1974 as amended in 1988 and which is associated with IEC 60945. When a requirement in this standard is different from IEC 60945, the requirement of this standard shall take precedence. This standard refers to equipment for: - single side-band (SSB) transmission and reception for radiotelephony; - frequency shift keying or single side-band transmission and reception for digital selective calling signals (DSC) according to Recommendation ITU-R M.493-7; and - frequency shift keying or single side-band transmission and reception for narrow band direct printing telegraphy (NBDP) according to Recommendation ITU-R M.625-3; as applicable. This standard refers to radio equipment, which is not integrated with OSC encoders or decoders, or NBDP modems, but defines the interfaces with, and the RF characteristics of, such equipment. NOTE - The requirements for integrated DSC encoders or decoders may be found in IEC 61097-3 and for integrated NBDP modems in the future IEC 61097-11. These requirements include the relevant provisions of the Radio Regulations and of the IMO Resolutions A.334(IX), A.421(XI), A.694(17), A.804(19), and A.806(19) and SOLAS. NOTE - The requirement for two-tone generators (A.421 (XI)) is only applicable until 1 February 1999. If the equipment, or parts of it, is designed in such a manner that it can be used for other categories of maritime radiocommunication services (e.g. radio data or facsimile transmission), those parts of the equipment shall fulfil the relevant requirements of the appropriate standards for the service(s) in question. NOTE - All text of this standard the wording of which is identical to that in IMO Resolutions and to that in the relevant ITU-R Recommendations is printed in italics and is prefixed by references (804 etc.) in brackets. When the text is identical in A.804 and A.806 the reference A.806 will be used.