Jan. 29, 2021
5:55 p.m.
El ene. 27, 2021, a las 3:56 p. m., Brian Inglis <Brian.Inglis@SystematicSw.ab.ca> escribió:
The telephone and broadcast time data require obsolete Bell 103 modem decoders and suffer from unknown telco or shortwave propagation or ionospheric delays and conditions:
https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-offici...
https://nrc.canada.ca/en/certifications-evaluations-standards/canadas-offici...
Just a note on the word “obsolete” here, FSK modulation remains widely used and implemented. Modern software such as direwolf <https://github.com/wb2osz/direwolf#decoded-information-from-radio-emissions-...> can decode more reliably than prior hardware implementations of Bell 103 compatible demodulators. Regards, -s