Final answer:
The only types of spread spectrum technology specified by the FCC in the Codes of Federal Regulation (CFR), volume 47, part 15 are Direct Sequencing Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).
Step-by-step explanation:
The only types of spread spectrum technology specified by the FCC in the Codes of Federal Regulation (CFR), volume 47, part 15 are:
- Direct Sequencing Spread Spectrum (DSSS)
- Frequency Hopping Spread Spectrum (FHSS)
These two types of spread spectrum technology are regulated and allowed for use in various communication applications. Direct Sequencing Spread Spectrum (DSSS) involves multiplying data signals with a code sequence, while Frequency Hopping Spread Spectrum (FHSS) continuously changes the carrier frequency at regular intervals.