I am using a Heil Pro Set Quiet Phone and find that I have to crank the AF gain almost full open to get a satifactory audio level. Has anyone else found this and what to do? Jay -- View this message in context: http://n2.nabble.com/K3-AF-gain-level-tp4187028p4187028.html Sent from the Elecraft mailing list archive at Nabble.com.