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<p><big> HRS description </big></p>
<p>An HRS type antenna is basically a rectangular array of conventional dipole antennas strung between supporting towers. In the simplest case, each dipole is separated from the next by 1/2&nbsp;? vertically, and the centres of each dipole are spaced 1&nbsp;? apart horizontally. Again, in the simplest case (for a broadside beam), all dipoles are driven in phase with each other and with equal power. Radiation is concentrated broadside to the curtain.</p>

<p>Behind the array of dipoles, typically about 1/3&nbsp;? away</p><p>
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