Synthesizers for SSB

Synthesizers for SSB

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This chapter will deal with frequency synthesizers appropriate for medium and high-performance HF SSB radios. Space limitations preclude a thorough treatise on synthesizer design, many aspects of which are covered in the literature. We will concentrate on tuning speed, phase noise, spurious output signals, and the generation of small frequency steps needed in the HF band. The most important phaselock loop (PLL) configurations will be discussed; newer, all-digital techniques for producing small steps will be introduced, and the methods of combining these with traditional loops will be shown.

Chapter Contents:

  • 10.1 Receiver-Synthesizer Relationship
  • 10.2 Generating Coarse Frequency Steps in the Output Loop
  • 10.3 Generating Coarse Frequency Steps with Combining Loops
  • 10.4 Generating Fine Frequency Increments
  • References

Inspec keywords: phase noise; frequency synthesizers; phase locked loops; circuit tuning

Other keywords: tuning speed; spurious output signal; frequency step generation; PLL; frequency synthesizer; HF SSB radio; phase noise; all-digital technique; phase-lock loop

Subjects: Modulators, demodulators, discriminators and mixers; Signal generators

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