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Observations made over the past two months show some antennas have problems with the Ku-band polarizers.</div>
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Most of these are at the high frequency end — between 16 and 18 GHz. </div>
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Bad antennas of note:</div>
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ea03: cross-polarization of 10 to 20% between 16.7 and 17.6 GHz.</div>
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ea07: 10 to 40% between 16.2 and 18 GHz. Also shows a resonance-like bump to 40% at 14.4 GHz. </div>
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ea14; 10 to 50% above 16.6 GHz. </div>
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ea15; 10 to 25% above 17.2 GHz.</div>
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ea02 and ea05 show a single high spike in cross-pol (to 40%) around 17.8 GHz. </div>
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All others are generally less than 5% over the entire band. </div>
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rick</div>
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