E4C07
1. What does the MDS of a receiver represent?
E0A04
2. When evaluating a site with multiple transmitters operating at the same time, the operators and licensees of which transmitters are responsible for mitigating over-exposure situations?
E4D03
3. How can intermodulation interference between two repeaters occur?
E8C01
4. How is Forward Error Correction implemented?
E9C08
5. What is a folded dipole antenna?
E7A08
6. What logical operation does an OR gate perform?
E1D05
7. What must be posted at the station location of a station being operated by telecommand on or within 50 km of the earth's surface?
E6F07
8. What is a solid-state relay?
E7C06
9. What are the distinguishing features of an elliptical filter?
E4A07
10. Which of the following is an advantage of using an antenna analyzer compared to an SWR bridge to measure antenna SWR?
E2E11
11. What is the difference between direct FSK and audio FSK?
E8B05
12. What is the deviation ratio of an FM-phone signal having a maximum frequency swing of plus-or-minus 5 kHz when the maximum modulation frequency is 3 kHz?
E1A05
13. What is the maximum power output permitted on the 60 meter band?
E6E06
14. What characteristics of the MMIC make it a popular choice for VHF through microwave circuits?
E9A11
15. Which of the following factors determines ground losses for a ground-mounted vertical antenna operating in the 3 MHz to 30 MHz range?
E9F04
16. What impedance does a 1/2-wavelength transmission line present to a generator when the line is shorted at the far end?
E1E06
17. Who is responsible for the proper conduct and necessary supervision during an amateur operator license examination session?
E9E01
18. What system matches a higher-impedance transmission line to a lower-impedance antenna by connecting the line to the driven element in two places spaced a fraction of a wavelength each side of element center?
E1F10
19. Who may be the control operator of an auxiliary station?
E9D04
20. Why should an HF mobile antenna loading coil have a high ratio of reactance to resistance?
E7D03
21. What device is typically used as a stable voltage reference in a linear voltage regulator?
E2A05
22. What do the letters in a satellite's mode designator specify?
E6C05
23. What is an advantage of CMOS logic devices over TTL devices?
E7B08
24. How can an RF power amplifier be neutralized?
E6D07
25. What is current in the primary winding of a transformer called if no load is attached to the secondary?
E2B01
26. How many times per second is a new frame transmitted in a fast-scan (NTSC) television system?
E5A08
27. What is the phase relationship between the current through and the voltage across a series resonant circuit at resonance?
E8D08
28. What parameter evaluates distortion of an AFSK signal caused by excessive input audio levels?
E3A07
29. Atmospheric ducts capable of propagating microwave signals often form over what geographic feature?
E8A09
30. How many different input levels can be encoded by an analog-to-digital converter with 8-bit resolution?
E1C09
31. What is the highest modulation index permitted at the highest modulation frequency for angle modulation below 29.0 MHz?
E2D05
32. What is one advantage of the JT65 mode?
E4E04
33. How can conducted and radiated noise caused by an automobile alternator be suppressed?
E5D12
34. How many watts are consumed in a circuit having a power factor of 0.2 if the input is 100 VAC at 4 amperes?
E3C14
35. Why does the radio-path horizon distance exceed the geometric horizon?
E5C03
36. Which of the following represents an inductive reactance in polar coordinates?
E6B05
37. What characteristic of a PIN diode makes it useful as an RF switch?
E7E02
38. What is the function of a reactance modulator?
E9G02
39. What type of coordinate system is used in a Smith chart?
E3B01
40. What is transequatorial propagation?
E4B08
41. Which of the following can be used to measure the Q of a series-tuned circuit?
E1B07
42. To what type of regulations does PRB-1 apply?
E6A02
44. Which of the following semiconductor materials contains excess free electrons?
E2C03
45. From which of the following bands is amateur radio contesting generally excluded?
E7F14
46. Which of the following would allow a digital signal processing filter to create a sharper filter response?
E7G11
47. What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 3300 ohms and RF is 47 kilohms?
E9H07
48. Why is RF attenuation used when direction-finding?
E9B06
49. What is the elevation angle of peak response in the antenna radiation pattern shown in Figure E9-2?
E7H13
50. Which of the following is a technique for providing highly accurate and stable oscillators needed for microwave transmission and reception?
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