| 1. | The aperture efficiency ranges from 0.4 to 0.8 in practical horn antennas.
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| 2. | Type 33 was still another 10-cm set; this one used separate round-horn antennas.
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| 3. | The Type 32 was another 10-cm system, this one having separate square-horn antennas.
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| 4. | Horn antennas can also be constructed with high gain, but are less commonly seen.
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| 5. | A well-known example of this is the horn antenna.
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| 6. | Separate horn antennas were used for transmitting and receiving.
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| 7. | TsSO-P had a long horn antenna long and high.
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| 8. | Its payload was composed of a multi horn antenna by thirty 45 MHz command and telemetry antenna.
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| 9. | The Andover Earth Station was equipped with a giant horn antenna, 7 stories high and weighing 340 tons.
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| 10. | The medium-gain horn antennas are used for housekeeping data downlink when the high-gain antenna is not facing Earth.
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