Receivers

• Used primarily in FM receivers
• Suppresses audio output in the absence of sufficiently strong input signal and thus excludes lower-power signals or noise
• Has a control knob which sets the threshold level at which signals will open the audio output

Course Guide Topics

1. Purpose
2. Essentials
3. Superheterodyne Receiver
4. Double Conversion Superheterodyne
5. RF (Radio Frequency) Amplifier
6. Local Oscillator
7. Mixer (1)
8. Mixer (2)
9. IF Amplifier
10. IF Filter
11. Detector (Demodulator)
12. Product Detector
13. FM Detector
14. Audio Amplifier
15. Automatic Gain Control (AGC)
16. S Meter
17. Squelch
18. Receiver Characteristics
    Adjacent Channel Selectivity
19. Receiver Characteristics
    S/N ratio
20. Receiver Characteristics
    Dynamic Range
21. Receiver Characteristics
    Image Frequency (1)
22. Receiver Characteristics
    Image Frequency (2)
23. Receiver Characteristics
    Noise Figure/Factor
24. Receiver Characteristics
    Stability
25. Receiver Characteristics
    Densensitization
26. Receiver Characteristics
    Intermodulation
27. Receiver Characteristics
    Cross-modulation
28. SSB/CW Receiver
29. FM Receiver
30. Transverter