4BA-7F.4 How must the station call sign be amended when operating under the temporary authority of a Certificate of Successful Completion of Examination?
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The applicant must use an identifier code as a prefix to his or her present call sign, e.g., when using voice, "interim AE KA1MJP"
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The applicant must use an identifier code as a suffix to his or her present call sign, e.g., when using voice; "KA1MJP temporary AE"
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By adding after the call sign, when using voice, the phrase "operating temporary Technician, General, Advanced, or Extra"
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By adding to the call sign, when using CW, the slant bar followed by the letters T, G, A or E