Due to security of where I work I don’t always have daytime access to FR except outside on my phone so I will answer that later. Simple answer: The radios would fine in an EMP burst. They might be interrupted and need to be turned off then on, but they would not be destroyed.
There are two radios, the Danes (and others) which had zero protection and was light weight, and ours which were heavy and well protected from EMP, and our radio was very advanced and used for Special Operations units where weight was crucial.
Were we Americans just building all that EMP protection in because we didn’t understand science?