Today, I had some time to kill in Swaffham.
Notice how I dropped the mods in positions 1 and 3. I don't know why Ingress lets you do this. You're only allowed to deploy one or two mods, but you can put them in any position. Even if you take no notice of the type of mod deployed there are ten different ways of doing it. By also selecting the type(s) of mod deployed this could be built up into an elaborate secret code.