1.What is the difference between Diplexer and Duplexer and
what position?
2. What is the different between CDU C and CDU A
3. How do you link a T1 from the 1st BTS to 2nd BTS
4. What is the value for TEI 1st T1?
5. What is the SSI?
Answers were Sorted based on User's Feedback
Answer / sahani.santosh@gmail.com
1.diplexer is used if we want to use same antenna line[feeder] for two different type of waves.like using same feeder for gsm n cdma transmission to gsm..even if to physically separateed antennas are there only a set of feeder will be required DUPLEXER is used if we want same antenna to transmit n receive..instead of using two separate ones..
3.There r so many ways o transfering E1/t1 FROM ONE BTS TO ANOTHER..used twisted pair cable w E1T1 card or RRI w in use but power off ..so many ways..
4.SS7 is the protocol used for transmissin of non voice dats transfer[signalling ],that r used for call setup etc
Is This Answer Correct ? | 16 Yes | 4 No |
Answer / farhan chaudhry
What is the difference between Diplexer and Duplexer and
what position?
Used for separating sending and receiving signals to/from
antenna.
What is the different between CDU C and CDU A
CDU A uses filter combiner and c uses hybrid
Is This Answer Correct ? | 19 Yes | 16 No |
Explain synthesised frequency hopping?
Explain the tdd in gsm technology?
Anyone any idea about LTE and GSM internetworking. Is it like GSM is used for backbone comm in LTE??
What is wps in gsm technology?
Do you know what is gsm technology?
Explain interleaving?
Explain equalisation?
What do location update mean? Why do we need them?
Explain about lte and gsm internetworking.?
What is arfcn in gsm technology?
What is trx in gsm technology?
Explain what is the relation between rxlev [0 to 63] and rxlev [-110 to -47]?