What is modulation? Explain in detail.

0 Answers  

---

why 2 rectifier is used in smps?

4 Answers   Infosys, Syntel,

---

how to begin the answer for "tell about yourself"? also what to answer?

3 Answers  

---

How can I understand electronic/electrical panel wiring & drawing?

0 Answers  

---

what are the applications of an inverting amplifier?

0 Answers  

---

Explain what is a voltage follower?

0 Answers  

---

why the value of 3db down point is 0.707??

2 Answers  

---

Which channel is used for SMS?

3 Answers  

---

Q.1. What do you mean by FDMA? Explain in details. Q.2. What are active & passive elements in BTS? Q.3. Name the equipments required for 2+2+2. Q.4. What is the function of BB2F card? Q.5. What is the function of BOI card? Q.6. Which modulation we use in case of GPRS? Q.7. Which slot is reserved for GPRS? Q.8. What is the height of BTS? Q.9. What is the height of ESMA card? Q.10. How many maximum slots we can use in ESMA card? Q.11. We use PSWA card in which case? Q.12. We use PSWB card in which case? Q.13. How many types of Transmission cards are in Ultra BTS? Q.14. How many types of Transmission cards are in Flexi BTS? Q.15. What will happen if we change the polarity of microwave antenna? Q.16. What is the full form of ARFCN? Q.17. What is the function of TRAU? Q.18. Explain the structure of entire GSM. Q.19. Explain the configuration of 4+4+4. Q.20. Which type of connector we use in FIFA card? Q.21. Which type of connector we use at the end of GSM antenna/ Q.22. What are the different types of GSM antenna? Q.23. What do you mean by Splitter? Q.24. Convert the 16 W power into dBm. Q.25. Explain the different steps of Commissioning. Q.26. What do you mean by protection loop? Q.27. What is the correct way of weather proofing? Q.28. Can we use 7GC instead of 15GC? Q.29. What is the function of Duplexer? Q.30. What are the different elements of MSC? Q.31. Write the total description of Ultra Commissioning.

0 Answers   Nokia,

---

What is an instrumentation amplifier and the need for?

0 Answers  

---

interviewr asked about sampling theorem and i said the common def.(i.e ...sam freq must >=s max freq in the signal for a sampled signal to recover without alising).he asked that i have a sin signal of freq 1hz and i sampled at two zero amplitude points can it be recoverable without aliasing????

4 Answers   BARC,

---

can i put two batteries in place of one battery in 600VA UPS? If yes, then it will be whether in series or parellel. will there be any adverse effect after putting two batteries?

2 Answers   Air Force, Indian Air Force,

---