SSB on the Icom IC-7300 uses digital phase-shift network (PSN) modulation.

Modulation Details

This digital PSN method processes the audio signal through phase shifts in a direct-sampling architecture, converting RF to digital data via FPGA for efficient single-sideband transmission. It enables adjustable output power from 5-100 watts in SSB mode, supporting clear voice communication on HF and 50 MHz bands.

Comparison to Other Modes

• AM : Digital low power modulation, limited to 1-25 watts.

• FM : Digital reactance or phase modulation, also up to 100 watts.

• SSB advantage : Suppresses one sideband and carrier for higher efficiency than full carrier modes like AM.