What part of the red text did you not understand? It depends on the size of the weapon (energy yield) , how high it was detonated (altitude) , the gamma ray output, interaction with the earth's magnetic field, and any electromagnetic shielding of the targeted systems.
Of course that information is in the second paragraph of the link I gave you. I'm sorry you gave up before reading it.
Why do you keep typing all those words, when all you have to type is a number? You talk a big game, but you have no ******* clue what youre talking about.
Listen shit for brains, there is no number!
Pick a weapon yield, pick and altitude you can detonate it at, determine the gamma ray yield of the weapon, and then determine the strength of the earth's magnetic field relative to the point of detonation. Then pick a point on the ground and what system you are targeting and how well it is shielded. Only then we can determine what level of damage will occur.
I am sorry that you apparently have such a limited education that you cannot fathom the complexities of these systems.