QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED
The action of converting detected intelligence into sound
waves that a human can hear. - ANSWER-Reproduction
The action of separating the low frequency intelligence
from the high frequency carrier. - ANSWER-Detection
The ability of the receiver to isolate one station's
frequency from the many frequencies present at the
antenna. - ANSWER-Selection
Occurs when a transmitted electromagnetic wave passes
through the receiver's antenna. - ANSWER-Reception
What are AM receivers? What does the AM broadcast
band cover? - ANSWER-AM receivers are electronic
devices that pick up signals sent from AM transmitters.
Frequencies go from 535 KHz to 1605 KHz
, ATT TEST 6 EXAM LATEST 2024 ACTUAL EXAM 150
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED
Which is the most widely used FET? - ANSWER-Common
Source
What is Calculated Av? - ANSWER-Gm*Rd
What are common gate FET normally used as? -
ANSWER-Switch
What are Common Source and Common Drain FETs
normally used for? - ANSWER-Amplifiers
Forward biased measurements indicate what? -
ANSWER-Normal resistance reading is low. A high
reading indicates an Open FET.
Reversed biased measurements indicate what? -
ANSWER-Normal resistance measurement is high. A low
reading indicates a shorted FET.
, ATT TEST 6 EXAM LATEST 2024 ACTUAL EXAM 150
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED
With the diode test function, how many directions
should current flow? - ANSWER-One
What is Amplitude Modulation? - ANSWER-Occurs when
the carrier frequency is altered in the amplitude by the
lower intelligence frequency.
How many circuits do the turner block contain? What
does each one do? - ANSWER-Tuner contains 3 circuits.
(RF Amplifier- selects and amplifies one frequency from
the many picked up by the antenna.
Local Oscillator- produces a frequency 455 KHz above the
selected RF.
Mixer- produces four frequencies)
What is LO, RF, LO+RF, and LO-RF? - ANSWER-LO
Frequency- 455 KHz
LO+RF- Adds 455 KHz to the RF.
RF- Given number