Answer / Aankur Gupta

Motorola GSM duplexers are active devices. They amplify the uplink signal before transmitting it to the base station and also amplify the downlink signal before sending it to the mobile phone.

what is ripple rejection?

1 Answers   TCS,

---

what is the rolls rolls of an Engineer?

1 Answers  

---

how to use single phase supply for 3 phase instrumentation

1 Answers   TCS,

---

Explain how the active power factor correction changes the wave shape of current drawn by a load to improve the power factor?

1 Answers  

---

Define peak inverse voltage?

1 Answers  

---

What are ‘emitter injection efficiently’ and ‘base transport factor’ and how do they influence the transistor operation?

1 Answers  

---

what frequncy range useing in cell communication

7 Answers  

---

What is a difference between ISDN PRI & Channelised E1 ?

4 Answers   Bharti,

---

Define why are active filters preferred

1 Answers  

---

what is the electronics

1 Answers  

---

if UT=4v & V LT=-2v the hysteresis voltage is equal to....?

1 Answers   Infosys,

---

why ic 741 is different 4 m other ic's and y these ic 741 is used in integrated circuits?

1 Answers  

---