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Here are the?? RF Spectra ? of?? THOR22? (sent on 40m SSB)? when sent with? 0 (milliseconds) signal shaping and? 500 (millisec) signal shaping.

The shaping value is now in the FLDIGI MENU under? MODEM:? GENERAL??? and can be set manually from 0 to 500 value.

Shaping the signal amplitude tones in the FSK modes like THOR, MFSK, AFSK RTTY? should tend to "soften" them - resulting in a smaller bandwidth (like shaping a CW carrier)

On CW the shaping in milliseconds is typically 4-8 ms? (turning the carrier on/off) which results in a narrow bandwidth CW signal.

No shaping of a CW signal results in key clicks and a wide splatter type signal.

I'm not sure what the units are in FLDIGI for tone "shaping" but it also looks like milliseconds.

RF spectra captured with an SDR (RSP play) and RSP Spectrum Software

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No Signal Shaping

500 ms Signal Shaping