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G8C13
What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?
Pick an answer to check it.
Answer: D. Overmodulation
Vertical lines on either side of a digital or RTTY signal on a waterfall are spurious sidebands caused by overmodulation. Reduce audio drive until they disappear.
Tip: Side lines on the waterfall = too much audio.