Furuno Marine Radar Experiments
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1/8/2017 <strong>Furuno</strong> <strong>Marine</strong> <strong>Radar</strong> <strong>Experiments</strong><br />
As the magnetron ages, its output frequency will shift a little.<br />
To compensate for this, there is an adjustment for tweaking the main local oscillator tuning<br />
frequency. This is the potentiometer shown above and is located inside the display unit. It can be<br />
adjusted between +5V and +35V. The main tuning knob on the display unit is mostly for use as fine<br />
tune control.<br />
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