CH- 1 MC

Personal computer become powerful during the late

DECT stands for

• Digital European Cellular Telex

• Digitized Emergency Cellular Telephone

• Digital European Cordless Telephone

• Digital European Cellular Telephone

World’s first cellular system was developed by

• Nippon Telephone and Telegraph (NTT)

• Bellcore and Motorola

• AT&T Bell Laboratories

• Qualcomm

Paging systems were based on

• Simplex systems

• Half duplex systems

• Full duplex systems

• None of the above

Half duplex system for communication has

• Communication in single direction

• Communication in single direction at a time

• Communication in both directions at the same time

• None of the above

1G or First Generation Mobile Network is _____?

Which country is still using the 1G network in limited or demo use?

• USA

• China

• UK

• Russia

What are main problems in 1G technology?

• Noise

• Security

• Poor Battery backup

• All the above

What is the Cell Size or Coverage Area in 1G technology?

• 1-5Km

• 20-60Km

• 5-50Km

• 2-30Km

Modulation technique employed by AMPS 1G network is ______?

• TDMA - Time Division Multiple Access

• FDMA

• CDMA

• PDMA