00000nam 2200000zi 4500 9.894887 CaOODSP 20221107173853 m o d f cr |n||||||||| 201223s1985 oncd ob f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn--- Co24-3/7-1379-1985E-PDF Royer, G. M., author. The distortion of AM broadcast antenna patterns as caused by nearby towers and highrise buildings / by G.M. Royer. Ottawa : Communications Research Centre, 1985. 1 online resource (iii, 94 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 1379 Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. "March 1985." Includes bibliographical references (page 77). "AM broadcast antennas are designed to have patterns which provide an adequate broadcasting service, while at the same time satisfying domestic and international regulations with respect to permissible levels of interference with signals from other stations operating in the same frequency band. The erection of a tower or highrise building near a broadcast antenna could possibly distort the antenna's pattern such that the above objectives are not met. It is the purpose of this report to: 1) provide the engineer with sufficient information to enable him to compute whether or not a given structure will cause serious pattern distortion, and 2) investigate methods for reducing the strength of a tower's scattered field; thereby reducing the tower's pattern distorting effects"--Abstract. Radio Antennas. Radio Transmitters and transmission Fading. Radio Interference. Radio Antennes. Radio Émetteurs et transmission Fading. Radio Brouillage. Communications Research Centre (Canada), issuing body. CRC report ; no. 1379. (CaOODSP)9.882492 PDF 1.53 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1379-1985-eng.pdf