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Henry Joseph Round 1881-1966. 1902Joined Marconi Company 1902-1907USA, N.I. & Brazil 1908Portable wavemeter 1909Decremeter 1910Direction Finding 1910Crystals.

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Presentation on theme: "Henry Joseph Round 1881-1966. 1902Joined Marconi Company 1902-1907USA, N.I. & Brazil 1908Portable wavemeter 1909Decremeter 1910Direction Finding 1910Crystals."— Presentation transcript:

1 Henry Joseph Round 1881-1966

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3 1902Joined Marconi Company 1902-1907USA, N.I. & Brazil 1908Portable wavemeter 1909Decremeter 1910Direction Finding 1910Crystals and valves 1913Three electrode soft valve.

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6 1902Joined Marconi Company 1902-1907USA, N.I. & Brazil 1908Portable wavemeter 1909Decremeter 1910Direction Finding 1910Crystals and valves 1913Three electrode soft valve.

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8 1902Joined Marconi Company 1902-1907USA, N.I. & Brazil 1908Portable wavemeter 1909Decremeter 1910Direction Finding 1910Crystals and valves 1913Three electrode soft valve.

9 1914Patent C valve 19141 st telephony between ships. 1914Military Intelligence – Captain 1914Set up Direction Finding stations 1915V-24 & Q valves 1917Rotating frame DF circuits.

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11 Wireless on land. Direction Finding. Artillery Interception. Mobility/ Loos September 1915.

12 Wireless in the air. RFC Brooklands. Dartford. Joyce Green. Biggin Hill. Airships. Hydrophones. Weight and Aerial problems. RAF April 1918. Battle of Messines.

13 Wireless at Sea. DF stations 1910 Admiralty station at Whitehall Intership and ships/hore communications. South Foreland and East coast stations. Battle of Jutland. Sir. Henry Jackson.

14 Military Cross Chief Researcher and Engineer Marconi Company V-24 in use until 1937 WW II - Admiralty. ASDIC/SONAR

15 Picture courtesy Marconi Company

16 They dying so we live

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