EXAM 2 Receiver functions

Question 1

Amplification
Adjustable?
Signals Processed
Effect on image

Answer 1

adjustable
All signals treated identically
Entire image is brighter or darker

Question 1

Compensation
Adjustable?
Signals Processed
Effect on image

Answer 1

Adjustable
Signals treated differently depending on their depth
Image be uniformly bright from top of bottom

Question 2

Compression
Adjustable?
Signals Processed
Effect on image

Answer 2

Adjustable
Signals treated differently depending on their strength
Changes gray scale mapping

Question 3

Demodulation
Adjustable?
Signals Processed
Effect on image

Answer 3

NOT Adjustable
Prepares electrical signals to be suitable for display
NO Effect

Question 4

Rejection
Adjustable?
Signals Processed
Effect on image

Answer 4

Adjustable
Only weak signals are affected; strong signals remain unchanged
Weak echos appear or are eliminated from image