2-35. The adjustable stub on the AS-390/SRC uhf antenna is used to adjust what antenna characteristic?
- The counterpoise angle
- The input impedance
- The radiation angle
- The feed point
2-36. The OE-82B/WSC-I(V) antenna group uses what type of polarization?
- Vertical
- Horizontal
- Right-hand circular
- Left-hand circular
2-37. The AN/WSC-S (V) shore station antenna consists of what number of OE-82A/WSC-1 (V) assemblies?
- 1
- 2
- 3
- 4
2-38. What does the acronym LPI stand for?
- Low power interference
- Low probability of intercept
- Low phase intercept
- Last pass intercept
2-39. The reflectors for the AN/WSC-6 (V) are mounted on three-axis pedestals and provide auto tracking using what scanning technique?
- Conical
- Peripheral
- Vertical
- Horizontal
2-40. Antenna tuning is accomplished using what piece or pieces of equipment?
- Couplers
- Tuners
- Multicouplers
- All the above
2-41. Antenna multicouplers are used to match more than one transmitter or receiver to what number of antennas?
- 1
- 2
- 3
- 4
2-42. The AN/URA-38 antenna coupler is an automatic tuning system primarily used with which radio transmitter?
- AN/WSC-3
- AN/URT-23
- AN/URC-8O
- AN/FRT-84
2-43. The AN/SRA-57 coupler group operates in which of the following frequency ranges?
- 2-6 Mhz
- 4-12 Mhz
- 10-30 Mhz
- 40-60 Mhz
2-44. How many channels are provided with the AN/SRA-12 multicoupler?
- 4
- 5
- 6
- 7
2-45. What type of radar would use a truncated paraboloid reflector that has been rotated 90 degrees?
- A surface search
- An air search
- A navigation
- A height-finder
2-46. Of the following methods, which is NOT used to feed a cylindrical paraboloid reflector?
- A linear array of dipoles
- A slit in the side of a waveguide
- A thin waveguide radiator
- A quarter-wave stub
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