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Madhuri Gore's avatar

Wonderful article. And memories galore. Green green. Mast

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Captain N. B. Sarma's avatar

Filter Coffee on Vanishing Landline makes one nostalgic. During the heydays of landline having a phone was a great privilege. The Defense and railways had/have their own landlines. When my father died my ship was in Madras and my wife could manage to inform me with the help of my relation in the railways. Otherwise I would have sailed for two weeks exercises off East Coast.

Those days the size of the speakers were 2-3 inches dia whereas today the microphone and speakers in the mobile phones are less than a centimeter dia. This is possible because of the advances in material science. The Fibre Optics cable has revolutionized the cabling for communications.

But the landmark invention of Dr. A. J. Paulraj of Bangalore (Retd. Captain, Indian Navy) of using multiple antennas at both ends of a wireless link is at the heart of the current high speed wifi and mobile networks. MIMO(multi in-multi out) boosts data rate by creating parallel data streams. His patent is licensed by all the mobile manufacturers.

It may not be too long before the landline phone vanishes into a museum and various makes of phone will be rare items in a decade.

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