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| AUTOTUNER |
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| FUNCTIONAL OVERVIEW |
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| • | Provide
optional automatic tuning on |
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| 160m,
activated by sensing SWR |
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| • | Measure
frequency change to provide |
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| proper
initial direction to motor drive |
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| • | Provide
digital filtering of SWR |
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| measurement
during tuning to eliminate |
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| noise
caused by antenna movements due to |
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| wind |
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