Amateur Extra › E7 Practical Circuits › E7F03
E7F03
What type of digital signal processing filter is used to generate an SSB signal?
Pick an answer to check it.
Answer: C. A Hilbert-transform filter
A Hilbert-transform filter shifts all frequencies by 90 degrees. Combining the shifted and unshifted signals cancels one sideband, generating SSB.
Tip: Hilbert = 90 degree shift for SSB.