what are types of walsh code in cdma.

0 Answers   Ericsson, Wipro,

---

differentiate wired and wireless communication. differentiate co-channel and adjacent channel interference.

4 Answers   Bell,

---

why -48V is used in BTS?

1 Answers   ETSL,

---

What is meant by D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? What do you mean by an ideal voltage source? What do you mean by zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

0 Answers   MAHINDRA,

---

The output of an AM detector goes directly to the A IF amplifier B Mixer C Audio Amplifier D Loudspeaker

0 Answers  

---

---

Draw the circuits of cb, ce and cc configurations using npn transistor.

0 Answers  

---

How does data transfer takes place between memory and input output ports?

0 Answers  

---

HAI HELLO EVERYBODY, GOOD EVINING. THIS IS ANIL KUMAR. IAM WORKING AS A OSS-SR.ENGG IAM LOOKING FOR LEARNING TELECOM PROTOCOLS. PLZ HELP ME. HOW COULD I GET INFORMATION AND MATERILS.

0 Answers  

---

Igbt is a voltage controlled device. Why?

0 Answers  

---

What is HSN(Hopping Sequence Number)? How do we apply it?

2 Answers   Huawei,

---

especeted cutt off for bharat electronics limited exam both on 26june and 1 july

0 Answers  

---

What are edge triggered flip flop and level triggered flip flop?

0 Answers  

---