1. When the lunar mission was in progress, the ham radio operators of the world could listen in and track their broadcasts along with the moon. You cannot fake that.
2. To borrow from the comic XKCD, if they faked the moon landing to justify the money, they’d have done it against by now.
So what is the real story about the two minute blackout and the supposed ham interception?
There are many people that believe AboveTopSecret is run by the government in order to keep track and post disinformation.
Given comments by Aldrin, the cryptic message from Armstrong, and the weird press conference after the landing - isn’t it possible that they did see something that altered them - whatever that might be.
Armstrong looks either scared or drugged in that press conference. There are moments when his face just looks dreadful.