I hope it doesn't. Lost contact with center when I went below the top of the mountains, so tried 121.5, another pilot on guard relayed another center freq to try, switched to that one, by that time I didn't have time to say anything really. Switched to Unicom and said "emergency aircraft on final runway x"
The radio work was a real shit show b/c all the frequency changes. They say aviate, then navigate, then communicate... and I feel like I had the first two well established, So I don't think all that fiddling with the radio really hurt anything, but your mileage may vary.