Below is a method of procedure that can be replicated by newbies. The only thing I didn't cover in this is that you'll need to play around with Average/Max/Max Hold settings for a little while to see what signals are around. It just takes practice. You'll see how they differ when you have the device in front of you. More details are in the blog post below. Hope that helps.
http://rfchaosheart.blogspot.com/2016/05/spectrum-analyzer-configuration-for.html