[Elecraft] Boldly OT: 6 meter Sporadic-E season and the FT-8 microjuggernaut

[Jim Brown]

If the signal to noise ratio is good enough the FT8 tones are clearly 
audible.

The S/N numbers for WSJT modes are referenced to a 2.8 kHz bandwidth. An 
FT8 signal sounds like a wobbly carrier. Obviously, when trying to copy 
a weak CW signal we're more likely to choose 250-400 Hz bandwidth.

73, Jim K9YC

On 6/1/2018 8:13 PM, Neil Zampella wrote:
> Considering that FT8 is done with 8-tone frequency-shift keying (8-FSK) 
> at 12000/1920 = 6.25 baud.   I'd like to know how you can get that tone 
> in CW?
> 
> As far as the S/N threshold of the various WSJT-X  modes (from the 
> protocol specs in the WSJT-X user guide):
> FT8          : -21
> JT4A         : -23
> JT9A        : -27
> JT65        : -25
> QRA64A : -26
> WSPR     : -31