Are you moving, when you did this test ?
Is there anything in your vicinity which is moving, or which is generating a variable amount of heat or IR ?
It is probably working, and the place where you are doing this, is not quiet enough.
Are you moving, when you did this test ?
Is there anything in your vicinity which is moving, or which is generating a variable amount of heat or IR ?
It is probably working, and the place where you are doing this, is not quiet enough.