MyFishFinder.com Just like iceshanty but warmer
The vibration could be because the unit has been dropped and unbalanced as previously mentioned or it could be simply a matter of tightening the head unit to the mount a little tighter, make sure the battery is sitting flat as well... I know the flashers I've owned have all made noise at some time or another Either way, if you can return it you might wanna upgrade to the FL20 if it's within your budget. That VHS tape must be at least 3-4 years old Don
I returned it to Gander Mountian and got the FL-20.No problem returning it at all, should have put a blender in the box.Check out anything of value you buy there.Very satisfied with the new one, not a spec of dust on it and it's much more quiet.Thanks.