About: United States call letter assignments   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Before there were radio call letters, there were other identifiers that contributed to the development of call letters. Two of these were the signal flag codes used to identify ships at sea and the calls used by land telegraph stations. They are discussed below.

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  • United States call letter assignments
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  • Before there were radio call letters, there were other identifiers that contributed to the development of call letters. Two of these were the signal flag codes used to identify ships at sea and the calls used by land telegraph stations. They are discussed below.
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abstract
  • Before there were radio call letters, there were other identifiers that contributed to the development of call letters. Two of these were the signal flag codes used to identify ships at sea and the calls used by land telegraph stations. They are discussed below.
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