E8C15
1. What technique do individual nodes use to form a mesh network?
E2B05
2. Which of the following describes the use of vestigial sideband in analog fast-scan TV transmissions?
E9G02
3. What type of coordinate system is used in a Smith chart?
E3A07
4. Atmospheric ducts capable of propagating microwave signals often form over what geographic feature?
E6C11
5. In Figure E6-3, which is the schematic symbol for the NOT operation (inversion)?
E2A04
6. What is meant by the "mode" of an amateur radio satellite?
E2D07
7. What digital protocol is used by APRS?
E8A07
8. What determines the PEP-to-average power ratio of an unprocessed single-sideband phone signal?
E8D10
9. What are some of the differences between the Baudot digital code and ASCII?
E9D10
10. How does radiation resistance of a base-fed whip antenna change below its resonant frequency?
E5A12
11. What is the half-power bandwidth of a resonant circuit that has a resonant frequency of 3.7 MHz and a Q of 118?
E2E13
13. Which of these digital modes has the highest data throughput under clear communication conditions?
E6D08
14. Which of the following materials has the highest temperature stability of its magnetic characteristics?
E9B05
15. What type of antenna pattern is shown in Figure E9-2?
E3C08
16. Which of the following is the space-weather term for an extreme geomagnetic storm?
E1E02
17. Who is tasked by Part 97 with maintaining the pools of questions for all US amateur license examinations?
E4D10
18. What does a third-order intercept level of 40 dBm mean with respect to receiver performance?
E5B09
19. What is the relationship between the AC current through a capacitor and the voltage across a capacitor?
E8B05
20. What is the deviation ratio of an FM phone signal having a maximum frequency swing of plus or minus 5 kHz if the highest modulation frequency is 3 kHz?
E6B10
21. In Figure E6-2, which is the schematic symbol for a Schottky diode?
E7B04
22. What is the operating point of a Class A common emitter amplifier?
E7C02
23. What is the frequency response of a T-network with series capacitors and a shunt inductor?
E0A09
24. Which of the following types of equipment are exempt from RF exposure evaluations?
E3B06
25. On which of the following amateur bands is long-path propagation most frequent?
E1D08
26. Which VHF amateur bands have frequencies authorized for space stations?
E9C10
27. Which of the following describes a Zepp antenna?
E7F06
28. What is the minimum number of bits required to sample a signal with a range of 1 volt at a resolution of 1 millivolt?
E5D11
29. How much real power is consumed in a circuit consisting of a 100-ohm resistor in series with a 100-ohm inductive reactance drawing 1 ampere?
E7E10
30. How does a diode envelope detector function?
E9H07
31. What is the function of a Beverage antenna's termination resistor?
E4E08
32. What current flows equally on all conductors of an unshielded multiconductor cable?
E5C01
33. Which of the following represents pure capacitive reactance of 100 ohms in rectangular notation?
E4A11
34. Which of the following can be measured with an antenna analyzer?
E9E05
35. What Yagi driven element feed point impedance is required to use a beta or hairpin matching system?
E1F01
36. On what frequencies are spread spectrum transmissions permitted?
E1B07
37. To what type of regulations does PRB-1 apply?
E9A04
38. Which of the following factors affect the feed point impedance of an antenna?
E4C05
39. What does a receiver noise floor of -174 dBm represent?
E7H08
40. Which of the following components can be used to reduce thermal drift in crystal oscillators?
E1C08
41. What is the maximum permissible duration of a remotely controlled station's transmissions if its control link malfunctions?
E6F05
42. Which of the following describes an optical shaft encoder?
E7A02
43. What is the function of a decade counter?
E1A11
44. What licensing is required when operating an amateur station aboard a US-registered vessel in international waters?
E6E12
45. Why are DIP through-hole package ICs not typically used at UHF and higher frequencies?
E7D08
46. What type of circuit is shown in Figure E7-2?
E4B09
47. Which of the following can be measured by a two-port vector network analyzer?
E2C09
48. What type of equipment is commonly used to implement an amateur radio mesh network?
E6A11
49. In Figure E6-1, which is the schematic symbol for a P-channel junction FET?
E7G03
50. What is the typical input impedance of an op-amp?
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