A practical method for determining the directivity of H. F. and V. H. F. antenna systems

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100	1	⊔	‡aKeay, C. S. L.
245	1	2	‡aA practical method for determining the directivity of H. F. and V. H. F. antenna systems / ‡cby C. S. L. Keay and R. E. Gray.
260	⊔	⊔	‡aWashington, D. C. : ‡bNational Aeronautics and Space Administration, ‡c1964.
300	⊔	⊔	‡a17 p. : ‡bgraphs ‡c27 cm.
490	0	⊔	‡aNASA TM ‡vX-940.
500	⊔	⊔	‡aPrepared under Grant No. NsG-219-62. by University of Canterbury, Christchurch, New Zealand.
500	⊔	⊔	‡a"January 1964.".
504	⊔	⊔	‡aIncludes bibliographical references (p. 17).
538	⊔	⊔	‡aMode of access: Internet.
650	⊔	0	‡aAntennas (Electronics) ‡xMeasurement.
700	1	⊔	‡aGray, R. E.
710	2	⊔	‡aUniversity of Canterbury.
CID	⊔	⊔	‡a100075847
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