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T8D - Signals and emissions
Technician Class
Non-voice and digital communications: image signals and definition of NTSC, CW, packet radio, PSK, APRS, error detection and correction, amateur radio networking, Digital Mobile Radio, WSJT modes, Broadband-Hamnet
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All T0A T0B T0C T1A T1B T1C T1D T1E T1F T2A T2B T2C T3A T3B T3C T4A T4B T5A T5B T5C T5D T6A T6B T6C T6D T7A T7B T7C T7D T8A T8B T8C T8D T9A T9B
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