2026 Update
Q: What are the three transmitting antennas
Answer:
Primary target antenna, secondary directional
antenna, and omnidirectional antenna
Q: What is a PPI
Answer:
Planned position indicator
Q: What signal does the radar antenna send out
Answer:
1030MHz
Q: What signal does the transmitter send out
Answer:
1090MHz, 200 watts for light aircraft and up to
900 watts for transport aircraft
,Avionics exam 2 Questions and Answers with Verified Solutions | Latest
2026 Update
Q: On your transponder what does the ALT do
Answer:
Replies to all Mode A, C, and S interrrogations
Q: On your transponder what does the ON do
Answer:
Able to reply to all valid interrogations, altitude
will not be transmitted
Q: On your transponder what does the GND do
Answer:
Blocks Mode A and C, but receives mode S
Q: On your transponder what does the TST do
Answer:
Disables replies, illuminates displays, internal
tests, error message
,Avionics exam 2 Questions and Answers with Verified Solutions | Latest
2026 Update
Q: On your transponder what does the SBY
Answer:
Will not reply to any interrogation
Q: Is the altitude displayed on the transponder current pressure or standard day
Answer:
Standard
day(29.92inHg)
Q: How often is the transponder tested
Answer:
24 months
, Avionics exam 2 Questions and Answers with Verified Solutions | Latest
2026 Update
Q: Who can certify a test to a transponder
Answer:
A certified repair station, a holder of a countinuous
airworthiness maintenance program, or the manufacturer of the aircraft(only if it is
the original
equipment)
Q: Radio reply frequency
Answer:
Either 1090+/-3MHz or 1090 +/-1 MHz
Q: What is important when checking suppression for a transponder
Answer:
Verify that the transponder
does not respond to more than 1% of ATCRBS interrogations when the amplitude of
P2pulse is
equal to the P1pulse