In a radio receiver all stages contribute equally to noise RF stage has no effec

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Electronics and Communication Engineering ‣ Radio Receivers See What Others Are Saying!

Question
In a radio receiver
Options
A. all stages contribute equally to noise
B. RF stage has no effect on S/N ratio
C. mixer stage contributes most of the noise generated

Correct Answer

mixer stage contributes most of the noise generated

More questions

2. Most of the memory chips in static RAM
Options
A. do not require any supply
B. need 2 V supply
C. need 5 V supply
D. need 12 V supply

6. In a single phase full wave regulator, the firing angles in the positive and negative half cycles are generally
Options
A. equal
B. different
C. equal or different
D. different but sometimes equal

7. The real part of complex dielectric constant and tan? for a dielectric are 2.1 and 5 x 10^-4 at 100 Hz respectively. The imaginary part of dielectric constant at 100 Hz is
Options
A. 1.05 x 10^-3
B. 2.1 x 10^-3
C. 5 x 10^-3
D. 1.05 x 10^-2

Comments

More in Electronics and Communication Engineering: