Not contradicting what was written above but I want to point out that from my casual observations that STANAG signal does not seem to be much of an issue west of the Mississippi River and possibly not a huge problem even immediately west of the Ohio River. (For Canadian localization: roughly west of Lake Superior and Thunder Bay, ON.)
However, listeners in the northeast US and eastern Canada will have a difficult time with it and there are many listeners in that area so keep it in mind.