I discover a Pulsar…….sort of

Regularly, every so often, Sky television would splutter a little burst of sound interference.
I tried turning off the central heating, the computer, the cooker , mobile phones and every other electrical appliance I could find but it made no difference. Suspicion turned to the neighbours as mine invariably does. But first I timed the regularity of the pulses of interference and found them to be 40 seconds. I searched the internet using terms like Sky, interference, 40 seconds etc but again came up with nothing.
Then I had an idea. We have a little weather station powered by 6 AA batteries which receives data from sensors in the garden and the garage. I looked up the manual on the web and found that it communicates this data every 40 seconds. Mystery solved.
The reason I am so pleased with this outcome is that my normal methods are not so subtle and if ever I do have any success with technology its usually because I switched it off and when it came on again it was cured.