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1932 | Developed duplex method of Radio Telephony on V.H.F. using single ariel only for use in aircraft. Article published in "World Radio", June, 1933 (B.B.C. Publication). |
1939 | Developed Double Modulation method of Transmission using Frequency Modulation and Amplitude Modulation to provide double channel on single carrier. Notes on methods and results published in "The Wireless Engineer" October, 1940 |
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