Weird but super useful gadgets
I seem to be someone who buys things on the off chance that they will be useful at some point down the road. Thile there are many times when it doesn't feel like this pays off, some of the ...
Invisible problems are the hardest to fix, and until we evolve eyes that respond to radio waves, wireless will remain thoroughly out of sight. Radio engineers have long bypassed their organic shortcomings with specialised test equipment, the most highly prized of which is the spectrum analyzer. This sweeps through a band, plotting energy received at the frequencies where it’s found. With practice, all manner of problems can be recognised by the patterns they make.
Caption by: Rupert Goodwins
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