Radio News Houston-area AM Gets Power-Down Violation Warning By Adam Jacobson - January 8, 2018 1 FacebookTwitterWhatsAppLinkedinEmail What happens if your AM radio station fails to sign off at sunset, as required by its license? Just as JLF Communications LLC. It just got a Notice of Violation for failure to do just that at an AM it owns in the Houston market.Please Login to view this content. (Not a member? Join Today!)