Several nights ago I had my mept on 40m and recorded it's reception on the ON5EX grabber using SiteShoter then stitched the grabs together to see how I did over the long term. I have described this technique previously on this blog. Here's what it looked like:
My mept at the time was a QRP Labs kit which I have found to drift with changes in room temperature and I can see that drift on the ON5EX grabber. It shows the air condx to come on for 10 minutes then off for 10 minutes. The change in temperature is several degrees F based on a previous calibration also describe on this blog.
Consider the irony. I have without intending to do so remotely sensed the performance of my air conditioning system via a facility located in Belgium.