Yes, an interesting show tonight. Would be interesting, using an SDR, to look at the AM band and see how many stations are HD. Wonder if the HD signal in any way is affected by distance, let's day with an AM dx station received from several hundred miles away. Time to fire up the dongle radio and check out distant HD AM stations.
Ken is a very knowledgeable guy, glad you invited him on the show. Hope to see him again. Thanks for a really great show fellas.