E7E05
1. What is added to an FM speech channel to boost the higher audio frequencies?
E3A13
2. Which of these emission modes is best for auroral propagation?
E6C07
3. What best describes a pull-up or pull-down resistor?
E4B09
4. Which of the following can be measured by a two-port vector network analyzer?
E8D03
5. Which describes spread spectrum frequency hopping?
E2E12
6. How do ALE stations establish contact?
E7H06
7. Which of these functions can be performed by a phase-locked loop?
E1F03
8. Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?
E7A03
9. Which of the following can divide the frequency of a pulse train by 2?
E5C07
10. Where is the impedance of a pure resistance plotted on rectangular coordinates?
E9G01
11. Which of the following can be calculated using a Smith chart?
E1C12
12. In what portion of the 630-meter band are phone emissions permitted?
E1D08
13. Which VHF amateur bands have frequencies authorized for space stations?
E1E11
14. What must the VE team do if an examinee scores a passing grade on all examination elements needed for an upgrade or new license?
E2D06
15. Which of the following is a method for establishing EME contacts?
E5D09
16. What happens to reactive power in ideal inductors and capacitors?
E4A05
17. What is the purpose of using a prescaler with a frequency counter?
E0A11
18. To what should lanyards be attached while climbing?
E2C08
19. Which of the following contacts may be confirmed through the Logbook of The World (LoTW)?
E4D14
20. What power level does a receiver minimum discernible signal of -100 dBm represent?
E9D05
21. Approximately how long is a Yagi's driven element?
E9E01
22. Which matching system for Yagi antennas requires the driven element to be insulated from the boom?
E9B11
23. What is a disadvantage of decreasing the number of wire segments in an antenna model below 10 segments per half-wavelength?
E8B09
24. What is deviation ratio?
E9H05
25. What challenge is presented by a small wire-loop antenna for direction finding?
E5A04
26. What is the magnitude of the impedance of a parallel RLC circuit at resonance?
E7F11
27. What sets the minimum detectable signal level for a direct-sampling software defined receiver in the absence of atmospheric or thermal noise?
E7D12
28. What is the dropout voltage of a linear voltage regulator?
E6B10
29. In Figure E6-2, which is the schematic symbol for a Schottky diode?
E1B07
30. To what type of regulations does PRB-1 apply?
E2A05
31. What do the letters in a satellite's mode designator specify?
E2B04
32. How is color information sent in analog SSTV?
E4E13
33. Where should a station AC surge protector be installed?
E9A07
34. What is the effective isotropic radiated power (EIRP) of a repeater station with 200 watts transmitter power output, 2 dB feed line loss, 2.8 dB duplexer loss, 1.2 dB circulator loss, and 7 dBi antenna gain?
E9C06
35. What is the effect of adding a terminating resistor to a rhombic or long-wire antenna?
E7B05
36. What can be done to prevent unwanted oscillations in an RF power amplifier?
E7G11
37. What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 3,300 ohms and RF is 47 kilohms?
E6D08
39. Which of the following materials has the highest temperature stability of its magnetic characteristics?
E9F04
40. What impedance does a 1/2-wavelength transmission line present to an RF generator when the line is shorted at the far end?
E6E10
41. What advantage does surface-mount technology offer at RF compared to using through-hole components?
E6A03
42. Why does a PN-junction diode not conduct current when reverse biased?
E4C14
43. What is the purpose of the receiver IF Shift control?
E7C07
44. Which describes a Pi-L network?
E1A03
45. What is the highest legal carrier frequency on the 20-meter band for transmitting a 2.8 kHz wide USB data signal?
E8A11
46. Which of the following is a measure of the quality of an analog-to-digital converter?
E3B05
47. Which of the following paths is most likely to support long-distance propagation on 160 meters?
E3C07
48. Which of the following indicates the greatest solar flare intensity?
E8C07
49. What is the bandwidth of a 4,800-Hz frequency shift, 9,600-baud ASCII FM transmission?
E6F09
50. What is the efficiency of a photovoltaic cell?
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