9fd99e4b_mateur_Extra_2002___Hamboozler__Question
[Name] E2E04 [Study] Start [Question] 
If an oscilloscope is connected to a TNC or terminal unit and is displaying two crossed ellipses, one of which suddenly disappears, what would this indicate about the observed signal?
Questions in US Amateur Radio - Amateur Extra 2002 - Hamboozler
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