I agree the story is phony....but only for the purpose of Iran saying they are real experts on GPS. They could be....but only if Russia was helping them.
Russian military has just been given access to Iran's ports in Bandar-e-Bushehr and Chabahar...so the likelihood they're getting help from Moscow is pretty high.
Wrong.
Quite a few moons ago, I went to EE school (4 or 5-year University) with a number of Persians, as we then called them. Only a few were good at, say, troubleshooting a circuit. But, at theory and being able to do the math in their heads while the rest of us (including some really smart Asians) were fumbling with plugging values for the variables into our calculators for, oh, say a 20+ character equation including maybe a log function and an arctangent (or whatever), several of those guys had no peers. They’d promptly spit out an answer to 5 digits of precision and maybe be off by a couple (say, a “5” instead of “7” on only the last digit.) “Seven-hundred-forty-three-point-two-five.” The rest of us would be looking at each other with slightly dropped jaws and muttering the f-word under our breaths...
Common sense? Well, that was a bit different matter.