Answer / anya

The 8051 has an internal RAM of 128 bytes,a total of 32
locations of this internal RAM kept aside for the purpose of
general(working)registers. these 32 bytes are divided into 4
banks each bank has eight registers,R0-R7. these are also
addressed by 00 H to 1F H.They access by choosing a
particular bank(B-0,B-1,B-2,B-3)using D4 and D3 bits of
Program status word(SFR). Actually when power is given to
8051, Bank-0 is selected.

The number of columns in a state table for a sequential circuit with m flip-flops and n inputs is

0 Answers  

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how we can calculate the t/f winding ratio and its formula

1 Answers  

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why video is AM but audio is FM modulated in TV?

3 Answers  

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What is 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? Explain an ideal voltage source? Explain 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 half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there 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? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 Answers   DRDO, Electronics,

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can u plz mail me bel qpapers.

0 Answers   BEL,

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What is a multivibrator?

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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,

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MN/MX pin - multiprocoessor mode.

1 Answers   ONGC,

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Explain the main application of scr in electronic field as well as in software field?

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Why does mode in arm in cpsr have 5 bits instead it can have only 3 bits to define all the 7 modes?

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what is the rolls rolls of an Engineer?

1 Answers  

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how to calculate percentage impedance

2 Answers   ISRO,

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