Poor Man’s “Bode Plot” with FY6800 Signal Generator and Oscilloscope
7 هزار بار بازدید -
5 سال پیش
-
Or how to sync a
Or how to sync a scope to a frequency sweep without a sync signal …
↓↓↓ Complete description, time index and links below ↓↓↓
Curb your expectations, there’s a reason for the quotation marks in the title. You won’t see a real Bode plot in this video, at least not on the scope. We’ll go for a poor man’s frequency response measurement, magnitude only.
Two viewer questions/discussions in the comments on the FY6800 Unboxing/Review videos (links below) kicked off the whole thing: How can I sync a scope to a frequency sweep done with a FY6800/FY6900 signal generator?
Intro …
00:00 Intro – curbing expectations, looking at viewer questions
04:46 Bode plots – frequency response of a circuit visualized
09:37 Frequency sweeps – Bode plots automated
Frequency sweeps using VCO …
13:19 VCO linearity – reports of its non-linearity are greatly exaggerated, but it sucks anyway
22:09 Voltage ramp – controlling the VCO with a signal the oscilloscope can trigger on
27:48 Summary – nice for a qualitative analysis, but not for quantitative measurements
Frequency sweeps using FM …
32:39 FM linearity – reported as better than the VCO’s, but it’s actually worse
38:39 Summary – same setup as for the VCO, worse performance than the VCO
Audio amplifier as DUT …
40:51 Audio amplifier as DUT – you always wanted to know how a frequency sweep sounds
Wrap-up …
45:07 Wrap-up – it’s fun and it certainly has its uses, but not for quantitative measurements
Tutorials: Tutorials
FeelTech FY6800 60MHz Signal Generator / Counter Review: FeelTech FY6800 60MHz Signal Generato...
FeelTech FY6800 60MHz Signal Generator Review Addendum (Viewer Question): FeelTech FY6800 60MHz Signal Generato...
FY6800 Signal Generator - Scargill’s Tech Blog: https://tech.scargill.net/fy6800-sign...
Antique Radio Forums - View topic - KKMoon FY-6800 DDS Signal Generator: https://antiqueradios.com/forums/view...
#robertssmorgasbord #tutorials #tutorial #how-to
↓↓↓ Complete description, time index and links below ↓↓↓
Curb your expectations, there’s a reason for the quotation marks in the title. You won’t see a real Bode plot in this video, at least not on the scope. We’ll go for a poor man’s frequency response measurement, magnitude only.
Two viewer questions/discussions in the comments on the FY6800 Unboxing/Review videos (links below) kicked off the whole thing: How can I sync a scope to a frequency sweep done with a FY6800/FY6900 signal generator?
Intro …
00:00 Intro – curbing expectations, looking at viewer questions
04:46 Bode plots – frequency response of a circuit visualized
09:37 Frequency sweeps – Bode plots automated
Frequency sweeps using VCO …
13:19 VCO linearity – reports of its non-linearity are greatly exaggerated, but it sucks anyway
22:09 Voltage ramp – controlling the VCO with a signal the oscilloscope can trigger on
27:48 Summary – nice for a qualitative analysis, but not for quantitative measurements
Frequency sweeps using FM …
32:39 FM linearity – reported as better than the VCO’s, but it’s actually worse
38:39 Summary – same setup as for the VCO, worse performance than the VCO
Audio amplifier as DUT …
40:51 Audio amplifier as DUT – you always wanted to know how a frequency sweep sounds
Wrap-up …
45:07 Wrap-up – it’s fun and it certainly has its uses, but not for quantitative measurements
Tutorials: Tutorials
FeelTech FY6800 60MHz Signal Generator / Counter Review: FeelTech FY6800 60MHz Signal Generato...
FeelTech FY6800 60MHz Signal Generator Review Addendum (Viewer Question): FeelTech FY6800 60MHz Signal Generato...
FY6800 Signal Generator - Scargill’s Tech Blog: https://tech.scargill.net/fy6800-sign...
Antique Radio Forums - View topic - KKMoon FY-6800 DDS Signal Generator: https://antiqueradios.com/forums/view...
#robertssmorgasbord #tutorials #tutorial #how-to
5 سال پیش
در تاریخ 1398/11/20 منتشر شده
است.
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