CIRCULAR POLARIZATION-A NEW APPROACH TO TELEVISION TRANSMISSION

Abstract

In the ,present inveetigtion the theoretical aspect of the behaviour of traxwmoaton of a ulax'ly polar teed ,vo betteon elevated ants placed at pious distance.s over losay earth is discussed by decomposing the circa. ter t' prized eve Into horizontal and vertical comp• nento and considering the direct L reflected tlaveo on* The reference curves of the field atxengthc and reflection coefficion a obtained at vnrioua diotsnoo are plotted for typical tourer boights and soil conditions,* As the work done is particularly at a trequeeV on uhich Delhi TV centre propaiffitec it baa been augosted to adopt the circa cu3 3 polarized trantuiaei . in India (due to somo advantages) over horizontally or vertu polarized tranai3liesion. The advantages may be listed as (s.) i1fl OLVOd local services (ii) ghost reduetton (iii) coverage and (iv) co-channel aud adjacent cwel intG ereuces