000 02332nam  2200397zi 4500
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008201223s1985    oncd    ob   f|0| 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn---
0861 |aCo24-3/7-1379-1985E-PDF
1001 |aRoyer, G. M., |eauthor.
24514|aThe distortion of AM broadcast antenna patterns as caused by nearby towers and highrise buildings / |cby G.M. Royer.
264 1|aOttawa : |bCommunications Research Centre, |c1985.
300 |a1 online resource (iii, 94 pages) : |bcharts.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCRC report ; |vno. 1379
500 |aDigitized edition from print [produced by Innovation, Science and Economic Development Canada].
500 |a"March 1985."
504 |aIncludes bibliographical references (page 77).
520 |a"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.
650 0|aRadio|xAntennas.
650 0|aRadio|xTransmitters and transmission|xFading.
650 0|aRadio|xInterference.
650 6|aRadio|xAntennes.
650 6|aRadio|xÉmetteurs et transmission|xFading.
650 6|aRadio|xBrouillage.
7102 |aCommunications Research Centre (Canada), |eissuing body.
830#0|aCRC report ;|vno. 1379.|w(CaOODSP)9.882492
85640|qPDF|s1.53 MB|uhttps://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1379-1985-eng.pdf