Answer / nawabumar(pakistan)

M-ary PSK modulation is constant energy scheme.
This can be proven looking at the constellation diagrams
which also reflec the energy relationships between differnt
points *
* | *
*---|---*
* | *
*
Though its not quite apparent from the fig. but the
distance of points from the centre(measure of energy
content) is same

Name some of the voltage driven (voltage controlled) devices?

0 Answers  

---

what is the voltage level of noise signal?

1 Answers   Samsung,

---

What is the most common modulation system is used for telegraphy?

6 Answers   AIR, BSNL, HCL,

---

I am perparing for DMRC Jr. Engineer Post. Please post me reference book Name At my Id laxman.negi@gmail.com

0 Answers  

---

What is the necessity of heat sink?

0 Answers  

---

which remote subscriber provide voice communication?

0 Answers  

---

why AM is used for video and FM is used for audio in tv. pl help!!!!!!!!

1 Answers  

---

What do you mean by operating point?

0 Answers  

---

what is quality factor

2 Answers  

---

I am a Electronics Communications Engineer.Please send us the important interview questions and answers.

0 Answers  

---

i done m.e communication system degree. i like to study new degree. which course is to choose. i selected m.sc applied psychology, m.sc e&i. is this suitable for me or say some suggestion to do some course.

0 Answers  

---

In a mosfet, what does the pinch off voltage refers to?

0 Answers  

---