Measurements

• A timebase oscillator normally deflects the trace in the X direction (horizontally) – measuring time;  the speed of the timebase is calibrated in fractions of a second
• On the face of the crt there is a marked graticule to allow X and Y (vertical) displacement to be measured allowing amplitude (voltage, Y) and frequency (period, X) respectively to be computed
• The Y amplifier plus the tube determine the bandwidth of the oscilloscope.  Input capacitance and input voltage may restrict uses
• A PC with appropriate ADC can be used as an oscilloscope

Course Guide Topics

1. Making Measurements
2. D.C. & A.C.
3. Voltage and Current (1)
4. Voltage and Current (2)
5. Loading effect of meter
6. Voltage and Current (3)
7. Resistance
8. Making Measurements – Voltage (V)
9. Making Measurements – Current (I)
10. Making Measurements – Resistance (R)
11. Power (1)
12. Power (2)
13. VSWR (1)
14. VSWR (2)
15. HF Station
16. HF Station showing SWR meter
17. RF Envelope
18. Frequency
19. Grid Dip Oscillator (GDO) (1)
20. Grid Dip Oscillator (GDO) (2)
21. Multirange Meter
22. Multimeter Use Summary
23. RF Power Meter
24. SWR Meter
25. Signal Generator
26. Frequency Counter
27. Oscilloscope (1)
28. Oscilloscope (2)
29. Spectrum Analyser
30. Other Instruments
31. Dummy Load