locked Re: 60 meters: Operating guidelines for FT8


Jim Shorney
 

Technically, no, FT8 is not an SSB signal. it is not amplitude modulated and in this context the "carrier" is nothing more than another heterodyne mix local oscillator of which there can be several in a typical (non-SDR) transceiver.

73

-Jim
NU0C

On Sat, 22 Feb 2020 02:44:49 -0600
"Seannon Baker (AG0NY)" <KD4IYI@...> wrote:

Also, the rules regarding the center frequencies are not clear. (they are)
FT8 doesn’t have a carrier. (yes it does, it's suppressed, but it's still
the carrier frequency) It’s SSB suppressed carrier. It’s FSK and its signal
shifts during transmission.

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