Well this detonation in Op Hardtack was to test if they could nuke and ICBM iirc. I think Hardtack 2 they actually were looking at EMP because the moratorium was going to stop their testing.
I'm sorry, but your first sentence seems garbled, and I can't understand your point. Hardtack II was conducted at low altitudes (4,000-6,000 feet) with only 4 larger than 1 kt yield. They were squeezing in a bunch of tests of new designs, but it doesn't seem that EMP effects were high on the list of properties to be concerned about. https://en.wikipedia.org/wiki/Operation_Hardtack_II
They didn't know much about EMP effects until they ran the tests. It was more of an experiment than an operational proving demonstration.
Well this detonation in Op Hardtack was to test if they could nuke and ICBM iirc. I think Hardtack 2 they actually were looking at EMP because the moratorium was going to stop their testing.
I'm sorry, but your first sentence seems garbled, and I can't understand your point. Hardtack II was conducted at low altitudes (4,000-6,000 feet) with only 4 larger than 1 kt yield. They were squeezing in a bunch of tests of new designs, but it doesn't seem that EMP effects were high on the list of properties to be concerned about. https://en.wikipedia.org/wiki/Operation_Hardtack_II