Wireless Communications/submarine Communication

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Question
how submarine communication is happening?
(because salt water is conducting and electric field is inside a conductor is zero and so the wave could not penetrate that's why iam asking)

Answer
You are correct in stating that radio waves do not penetrate electrical conductors well.
That makes conventional wireless communications with submerged submarines impossible.  
However, RF waves do penetrate imperfect conductors somewhat, a phenomenon called "skin depth" and the effect is more pronounced as frequency rises.  At very long wavelengths useful signal remains meters under the surface of the sea and that permits some slow data communication with submerged vessels.  

Wireless Communications

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Jerry Hinshaw

Expertise

RF and microwave engineering, hardware and systems applications. Avionics, satellite, and terrestrial communications. Space communications and navigation, geo-location services via satellite and ground-based wireless systems. Systems integration of RF and wireless services. Electric Utility RF Smart Meter (SmartMeter) and Smart Grid wireless devices and networks. Utility Distribution Automation.

Experience

30 years experience in microwave and RF systems engineering, radio hardware design and development.

Publications
about 20 articles, 2 patents

Education/Credentials
BSEE MSEE Communications Systems

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