E2[]
The E2 section of the Amateur Extra test contains information on operating procedures.
E2A[]
The E2A section covers amateur radio in space: amateur satellites; orbital mechanics; frequencies and modes; satellite hardware; satellite operations.
E2B[]
The E2B section covers television practices: fast scan television standards and techniques; slow scan television standards and techniques
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E2C[]
The E2C section covers operating methods: contest and DX operating; spread-spectrum transmissions; selecting an operating frequency.
E2D[]
The E2D section covers Operating methods: VHF and UHF digital modes; APRS.
E2E[]
The E2E section covers operating methods: operating HF digital modes; error correction.