RADAR History
PPI
IFF Theory
Basic (or not so much) Electronics
ACRONYMS
100
Where did the word radar originate?
RAdio Detection And Ranging
100
When is Grid shown?
PPI Ground Stabilized Screen
100
21 usec
P1- P3 spacing for mode C interrogation (altitude)
100
Define +3 db and -3 db.
+ 3db is double power - 3 db is half power
100
RISC
Reduced Instruction Set Computing
200
Country of Radar Origin
Germany
200
What is IBL?
Input Buffer Loading -loading status of input buffer in percent.
200
Where is P2 pulse?
2 usec after P1
200
12.36 usecs
What is a Radar mile?
200
SIF
Selective Identification Feature
300
What Aircraft preceded the E-3 Sentry?
EC-121 Warning Star
300
What is the Lubber Line"
Antenna Position Line
300
What is IFF Recieve frequency
1090 MHz
300
Why do aircraft use 400 Hz equipment rather than 60 Hz?
400 Hz equipment is smaller and lighter.
300
AMP
Advanced Module Processor
400
First airborne radar
H2S
400
What is CTP measured in?
Hertz
400
What is this Σ
Sum
400
Positive to negative is _____ flow however Negative to positive is _____ flow.
Current Electron
400
TWT
Travelling Wave Tube
500
When we talk about I and Q receivers... what does Q stand for?
Quadrature Phase.
500
What options (if any) exist for displaying ECM?
PPI Plot screen.
500
How can you tell which side of dome is IFF antenna.
Labeling and has thin lines.
500
What device is the primary prevention of electrical fires?
Circuit Breakers
500
ZFD
Zero Frequency Detector (Discriminator)
M
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