hi
i've bought my first oscilloscope ATTEN 1102cal+ and every thing is all right exept i dont know how to remove the 60hz sinwave ( it shows a sin wave when there's no signal)
thank you in advance
Is this occurring with nothing connected to the input connector, or do you have wires hanging on the input? If there is nothing connected to the input connector at all, then it sounds like a fault. If you have a wire connected (and connected to nothing at the other end), it sounds like normal 60Hz pick-up from the mains supply.