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T9B09:What can cause erratic changes in SWR?

T9B09T9B

What can cause erratic changes in SWR?

Direct answer summary (2026-2030 NCVEC pool)

The official correct answer for T9B09 is Loose connection in the antenna or feed line.

The key fact is Loose connection in the antenna or feed line. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in T9B

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