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Master Release

FM voice communication uses VHF frequency ranges for short range ship-to-ship or ship-to-shore communications.

SSB voice and data communication uses HF frequency ranges for long range ship-to-ship or ship-to-shore communications.

Cellular voice and data communications uses cellular towers for short range cellular communications.

Satellite Phone voice and data for communication when at sea or in exotic locations.

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Martek of Maryland / 9917 Stephen Decatur Hwy Unit #5 / West Ocean City, MD 21842
Voice 410-213-0888 / Fax 410-213-2790

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