I have owned this oscilloscope for about a year but have rarely used it so decided that, together with other things, it must go to someone who will appreciate it better than I do. Its a useful piece of kit, easy to use and accurate.The photos show it fed with first, an 80 MHz signal and secondly, a 90 MHz signal. It does not need me to tell you that, by the time the input is 90MHz it is struggling a bit. If you have read the many reviews on this item they mostly agree with this.Never the less it is a very useful piece of kit and the battery lasts for several hours before requiring charging. It is in very nice order, complete with probes etc.