teleview

Concerning Horizontal Vs. Vertical Polarization.

The following information is from my extensive library of television transmission and reception and related subjects.

From the book ,

TELEVISION STANDARDS AND PRACTICE

N.T.S.C.

FIRST EDITION

McGRAW-HILL BOOK COMPANY INC.

COPY WRIGHT YEAR 1943

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From page 316

The charge to Panel 9 read "considerations of the factors influencing the choice of polarization of the radiated wave." The conclusion reached by the Panel , that the polarization should be horizontal , is incorporated in the last of the N.T.S.C. Standards number 22.
Before arriving at this conclusion , the panel members concidered the effect of the direction of polarization in five basic categories: the effect (1) on the propagation of the television signal , (2) on the noise and interference , (3) on the design of receiving antennas , (4) on the design of transmitting radiators , and (5) on the relationship of the television sound service to the f-m broadcasting service.
The panel first decided that the direction of polarization chosen should apply to all television stations , since the evidence clearly showed that a single receiving aerial preformed best only on the direction of polarization for which it was designed. The panel also recommended that the same direction of polarization be employed for f-m broadcasting as for television sound.
The crux of the matter then remained the direction of polarization itself. On this matter , there were at first two sharply divided camps of opinion , favoring vertical and horizontal polarization , respective. By the time the Panel concluded its deliberations , however , sufficient evidence had been assembled to bring about substantial agreement that there was a slight preponderance of advantage for the horizontal direction.

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I find interesting the wording , a slight preponderance of advantage.

The chapter (x) goes on to explain the advantages and disadvantages of vertical and horizontal polarizations ,

In Easy to Understand Non Technical Terms. Practical and Useful.