Constructing Scotty Sprowls' 1 GHz RF Spectrum Analyzer


Overview

This is a series of notes and videos on constructing the 1 GHz Modularized Spectrum Analyzer (MSA) project designed by Scotty Sprowls.

under construction

Module Construction Notes

  1. 1013.3 MHz Cavity Filter  Using a Celwave Model No. 20-1224A19 900 MHz mobile duplexer.
  2. Control Board  Latch section of the control board.
  3. Master Clock Oscillator  10 MHz TCXO master oscillator.
  4. Logarithmic Detector  AD8306 logarithmic detector and limited IF amplifier circuit.
  5. Analog-to-Digital Converter  AD7685 16-bit ADC with a selectable video bandwidth filter input.
  6. IF Amplifier  Mini-Circuits ERA-3SM IF amplifier circuit.

Module Construction Videos

  1. GBPPR Vision #16: Scotty's Spectrum Analyzer - Part 1
  2. GBPPR Vision #17: Scotty's Spectrum Analyzer - Part 2
  3. GBPPR Vision #18: Scotty's Spectrum Analyzer - Part 3
  4. GBPPR Vision #19: Scotty's Spectrum Analyzer - Part 4
  5. GBPPR Vision #20: Scotty's Spectrum Analyzer - Part 5
  6. GBPPR Vision #22: Scotty's Spectrum Analyzer - Part 6

Relevant Yahoo Group Emails

  1. Cavity Filter - #1
  2. Cavity Filter - #2
  3. Master Oscillator Stability - #1
  4. Master Oscillator Stability - #2
  5. Spurs - #1
  6. Spurs - #2
  7. Spurs - #3
  8. Spurs - #4
  9. PLL Op-Amp - #1
  10. PLL Op-Amp - #2
  11. PLL Notes - #1
  12. PLL Notes - #2
  13. PLL Notes - #3
  14. Resolution Filters - #1
  15. Resolution Filters - #2
  16. Resolution Filters - #3
  17. Resolution Filters - #4
  18. Resolution Filters - #5
  19. Control Board Notes - #1
  20. Phase Noise - #1
  21. Phase Noise - #2
  22. Mixers - #1
  23. Extending Frequency Response - #1
  24. Extending Frequency Response - #2
  25. Extending Frequency Response - #3
  26. Extending Frequency Response - #4
  27. Mini-Circuits Kit - #1

Notes & Links

  1. MSA Spectrum Analyzer Construction Blog  by William Dillon
  2. Sam Wetterlin Electronics  Many detailed files on constructing and using the MSA.
  3. Rubi's World of Embedded Electronics  Michael Rubitschka's blog on the construction of his MSA.
  4. BG6KHC's Website  Very nice design based on a combination of S53MV's and Scotty's spectrum analyzer projects.
  5. PA0RWE's Website  Many detailed construction notes on building the MSA.
  6. KB9JJA's Building of Scotty's 3 GHz Spectrum Analyser  Collection of construction notes helpful when building the MSA.
  7. Optimizing the "SSA" Hybrid Synthesizer  by John Miles, KE5FX
  8. Software Control for the Modularized Spectrum Analyzer
  9. Design Tools: ADIsimDDS (Direct Digital Synthesis)  The AD9851 has an internal 6x multiplier.

Return to Green Bay Professional Packet Radio for more info and contact information.