plz do tell me therotically how to make a ckt using a pnp transistor to operate a 24V relay. push button,diodes, resistors,capacitor and one pnp transistors are available.

3 Answers   Siemens,

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Digital Communication has so many advantages over Analog communication then why do we use Analog Communication

4 Answers  

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under which condition we shall prefer a shunt capacitor filter?

1 Answers   Siemens,

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What is engineering?

0 Answers  

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What is meant by step-down cyclo-converters?

0 Answers  

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1. How many TRXs are supported in Nokia Metrosite 2. What is the command to lock the TRX 3. What is the command to unlock the BTS 4. What is the command from BSC to check the alarm in BTS 5. What is the maximum transmit power of FlexiEdge BTS 6. When Abis link is down, name the alarm that is generated at BSC 7. Orange LED on RRI card is glowing – what is the indication? 8. How many E1s are supported by one E1 card in BTS 9. How many ways one can login to BIO card? 10. What are the different data rates in Abis for Traffic, TRX signaling and OMU 11. BCSU card in BSC can support how many TRXs? 12. What is the command to check list of sites that are down? 13. How many TRX are supported when we use one M2HA card in BTS? 14. Name the different types of power supply card in BTS and the output power of each card 15. Ater interface is between transcoder and MSC – True/False 16. SS7 signaling is used in Abis interface – True/False 17. FlexiEdge BTS has RRI card – True/False 18. From Transcoder to MSC, data rate for each call is 64Kbps – True/false 19. Name different types of TRXs which supports different GSM bands 20. ODU LED shows orange – what is the significance?

0 Answers   Nokia,

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what are X rays? Give there frequency range.

1 Answers  

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What are monitoring methods for electronics activities?

0 Answers  

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Is there any junction in conductor?

0 Answers  

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why we use clamping on transformer

1 Answers  

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Explain how to design binary to gray code converter?

0 Answers  

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What is the difference between CAT 5e communication cable & CAT4 Communication cable

1 Answers  

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