Singing downrigger

[dubob]

My cannon downrigger began “singing” today, how do I make it less noisy. It was quiet when I last used a couple of weeks ago.

The metal cable will vibrate at different frequencies depending on the trolling speed of the boat.  And yes, switching to braided line will eliminate the singing - been there; done that.  However, if your DR's are electric Cannons, the automatic stop when the weight reaches the water surface will no longer function with braided line.  You will also not have the regulated ion voltage 0.6 VDC on your DR cable.