Answer Posted / chitesh shankar

While attempting a call, network allocates a frequency to the particular mobile subscriber. But sometimes due to huge traffic frequency allocation is become too difficult because network does not has the required frequency. thats why busy message is appear on the mobile screen.
Normally all networks are using the technology FREQUENCY REUSE. In which network uses the same frequency band to different mobile subscribers as per the demand.

What is the difference between masking and non-masking?

1179

---

What is meant by the deflection factor of a cro?

1201

---

1) is external oscillator XTAL1 &XTAL2 connection must needed ? 2) shall we proceed without oscillator for simple logialoutput

2112

---

please send me rrb gorakhpur je teli question paper

3766

---

Define what is the effect of temperature on extrinsic semiconductor?

1184

---

In a binary data sequence, the duration of symbol 0 or 1 is 1ms. If a carrier of freq 4khz is used in ask, what is the minimum transmission bandwidth required? What is min bandwidth?

986

---

charge at rest result in e.f and charge in motion result in m.f then how can an accelerated charge give rise to emf wave? then there should be no e.f due to acc charge as it rise from charge at rest?

2048

---

What is a feedback? And explain different types of feedback.

1019

---

What is a waveform used for in reference to electronics?

1190

---

Define negative logic.

1205

---

What is transistor?

1211

---

What is single input output interface? How it is different from single ended interface?

1041

---

idea uses the 1800mhz band with alloted 4.4mhz bandwidth. this band is divided into 22 channel(up link).how will operator divides these channel in to traffic channel and control channel. explain

2279

---

plz provide me all previous HPCL examination papers of electronics and communication branch.

2469

---

Explain what is a voltage follower?

1060

---