. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 178 BELL SYSTEM TECHNICAL JOURNAL on certain days for hours shown operative on these curves one or more might be entirely out of service. This chart indicates the tremendous advantage in employing a number of separate wave-lengths varying a good deal in their characteristics and choosing at any one time that wave-length which is giving the best Fig. 10—Showing receiving antenna at Cupar Having followed the radio transmission as the waves radiate into spac
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 178 BELL SYSTEM TECHNICAL JOURNAL on certain days for hours shown operative on these curves one or more might be entirely out of service. This chart indicates the tremendous advantage in employing a number of separate wave-lengths varying a good deal in their characteristics and choosing at any one time that wave-length which is giving the best Fig. 10—Showing receiving antenna at Cupar Having followed the radio transmission as the waves radiate into space and traverse space to the receiving end, we come to the matter of receiving stations. Fig. 10 shows a view of the wave antenna at Cupar, Scotland, used for receiving long waves. This complete antenna arrangement is made up of two pole lines such as shown, each about 3 miles long; a third may be added. These pole lines are placed parallel to each other with separations of about two miles. A pole line joins the two together and connects them to the receiving stations. It is fortunate that in America (and the same is true to a considerable extent in England) the signals come in from a northerly direction and the static tends to come in from almost the directly opposite direction. The directivity brought about by such anlennre has, therefore, a very large effect. It is estimated that under average conditions the present. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
