Forums Members Recent Posts Forums Spectran Developer ... FAQ RF Signal-Generator External 10MHz Refe... Notifications Clear all External 10MHz Reference with the BPSG4 Last Post RSS simoneley (@simoneley) New Member Joined: 3 years ago Posts: 2 Topic starter 27/10/2020 1:39 pm I find that selecting the External reference causes the output to disappear. This happens in Manual CW mode as well as Expert mode. Any ideas? Quote Share: