. Practical wireless telegraphy; a complete text book for students of radio communication . lost for purposeof wireless operation. For all connections at the masts, insulatorsand anchorages, special bridge sockets were designed. This didaway with the necessity for splicing and permitted a perfect andstraight pull, thereby developing the strength of the cable. Heavyconcrete blocks were used as anchorages for the stays. Thecompleted mast is shown in Fig. 315. In addition to the antennae stretched between the masts, greatquantities of wire were placed in the ground about the stations inorder to p
. Practical wireless telegraphy; a complete text book for students of radio communication . lost for purposeof wireless operation. For all connections at the masts, insulatorsand anchorages, special bridge sockets were designed. This didaway with the necessity for splicing and permitted a perfect andstraight pull, thereby developing the strength of the cable. Heavyconcrete blocks were used as anchorages for the stays. Thecompleted mast is shown in Fig. 315. In addition to the antennae stretched between the masts, greatquantities of wire were placed in the ground about the stations inorder to provide an efficient earthing system or ground connec-tion. Told in brief, a circle of zinc plates is buried in a trench,bolted together and jointed to the wireless circuits of the powerhouse by copper wires. Wires radiate from the zinc plates in theground to a set of outer plates, from which extend another setof earth wires placed in trenches running the full length of theaerial. The general scheme for the earth connection is shown inFig, 320. 236. Radio-Frequency Circuits of the Damped. Fig. 312—Showing Workmens CageWhich is Carried to the TopDuring the Process of Erection.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
