1a Transponders

Question 1

This is a radio, radar or sonar transceiver that automatically transmits a signal upon reception of a designated incoming signal

Answer 1

Transponders

Question 2

What are the two types of transponders

Answer 2

Active and passive

Question 3

This type of transponder has a reflected signal and must be used with an active sensor computer

Answer 3

Passive

Question 4

This type of transponder is used for airborne communication

Answer 4

Active

Question 5

There are 2 active types of transponders, the second one is used for what

Answer 5

Satellite and network communication

Question 6

This operates on the principal of transmitting a narrow beam of RF

Answer 6

PSR primary surveillance radar

Question 7

This does NOT require a reply from the aircraft

Answer 7

Primary surveillance radar

PSR 

Question 8

This DOES require a reply from the aircraft

Answer 8

Secondary surveillance radar

SSR 

Question 9

This operates on the principle of transmitting interrogation signals from the ground station to the aircraft’s transponder

Answer 9

Secondary surveillance radar SSR

Question 10

This system combines the PSR and SSR systems to give total range of information

Answer 10

ATCRBS Air traffic control radar beacon system

Question 11

This component contains the primary control functions

Answer 11

Control unit

Question 12

This allows one antenna to be used for both transmitting & receiving

Answer 12

Diplexer

Question 13

This determines validity of incoming signals

Answer 13

decoder

Question 14

This generates a reply signal

Answer 14

Encoder

Question 15

This is used to produce a RF reply pulse train at a predetermined frequency for the antenna to transmit

Answer 15

Transmitter

Question 16

This is an Omni directional antenna

Answer 16

L-Band antenna