VHF NAVIGATION PANEL

Question 1

FREQ Indicator / Transfer Switch / Selector

Answer 1

Freq Indicator.

• tune freq in the standby window
• transfer switch moves it to active and active to standby

Transfer Switch.

• moves freq between windows

Freq Selector.

• Rotate to manually select standby freq.
• Outer Knob - tens and ones
• Inner knob - tenths and one hundreths
• range: 108-117.95

Question 2

TEST Switch

Answer 2

• with a VOR freq tuned and 000 degrees selected
  
  • Capts panel test VOR receiver 1 and FOs panel test VOR receiver 2
  • set EFIS to VOR
    
    • VOR fail flag
    • deviation bar out of view then returns to center
    • bearing pointer to 180’
    • DME:
      
      • DME FAIL flag
      • dashes
      • normal DME distance
• with ILS freq tune and a course w/in 90 degrees of airplane hdg:
  
  • Capts panel test MMR 1 and FO’s panel test MMR 2
    
    • pointers disappear and LOC/GS flags momentarily appear
    • pointers appear and display: 1 dot up and 1 dot left then one dot low and one dot right then normal
    • DME:
      
      • DME FAIL flag
      • dashes
      • normal DME distance