1-48. 1–49. 1–50. 1-51. 1-52. 1-53. To obtain the above accuracy, how many satellite inputs are required? 1. Five 2. Two 3. Three 4. Four How  is  the  time  difference  between satellite  transmission  and  when  the navigation  set  receives  this  signal related to the distance between the satellite  and  the  receiver? 1. Inversely  proportional 2. Directly  proportional GPS  satellites  use  atomic  clocks; the receivers do not. What type of error must be computed based on this fact? 1. Delay 2. Eccentricity 3. Modulation 4. Clock Tropospheric  delay  is  predicted  and included  in  what  satellite  data? 1. Bias 2. Almanac 3. Variable 4. Precision Ionospheric  delay  is  greatest  when a  signal  is  received  from  directly overhead. 1. True 2. False Of the frequencies listed below, which  one  will  ionospheric  delay phase–shift  the  most? 1. 1227.60 MHz 2. 1575.42 MHz 3. 1883.65 MHz 4. 2879.23 MHz 1-54. Satellite  signals  reflecting  off one  or  more  objects  before  reaching the  navigation  set  produce  what type  of  reception? 1. Multipath 2. Faded 3. Skip-zone 4. Ground-wave 1-55. What  data  do  operators  enter  into the AN/WRN-6(V) to speed up satellite   acquisition? 1. Satellite  type 2. Time and date 3. Current  position 4. Both 2 and 3 above 1-56. Which of the following is the normal operating mode of the AN/WRN-6(V)? 1. Initialization 2. Test 3. Navigation 4. Tracking 1-57. Which of the following is a portable  GPS  receiver? 1. AN/WRN–6 2. AN/WSN-5 3. AN/PSN–8 4. AN/SPA-2 1–58. TACAN is based on what type of radio  air-navigation  system? 1. Polar-coordinate 2. Polar-sync 3. Neutral-coordinate 4. Neutral-sync 1-59. Instead  of  depending  on  radio-wave reflection, beacon-transponders generate  what  type  of  replies? 1. Neutral 2. Artificial 3. Basic 4. Torque 5