Technician › T9 Antennas and Feed Lines › T9B09
T9B09
What can cause erratic changes in SWR?
Pick an answer to check it.
Answer: B. Loose connection in the antenna or feed line
A loose connection in the antenna or feed line can cause erratic changes in SWR. As the connection moves or the wind blows, the match keeps changing. Check and tighten connectors when SWR jumps around.
Tip: Jumpy SWR? Look for a loose connection.