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Sunday, September 23 • 11:00am - 11:45am
The Real FT8, JT65, and JT9 SNR Revealed

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This forum explains that the FT8, JT65, and JT9 Signal-to-Noise Ratio (SNR) reports are referenced to a much wider noise bandwidth (2500 Hz) than the actual detection noise bandwidth required to successfully decode the digital data represented by the received Frequency Shift Key (FSK) tone. The FSK Tone SNR is much larger, and along with forward-error-correction coding, results in error-free message reception.

Speakers
avatar for Jim Frazier, KC5RUO

Jim Frazier, KC5RUO

Jim Frazier, KC5RUO, received a BSEE from Penn State University in 1977 and a MSEE in Digital Communications from Air Force Institute of Technology in 1982. Jim is a retired USAF lieutenant colonel, communications engineer, 20-year veteran, and a retired 18-year Honeywell Aerospace... Read More →

Sunday September 23, 2018 11:00am - 11:45am MDT
Rio Grande
  Digital Radio - DC to Daylight