"Bob Bruninga " <bruninga at usna.edu>, Sun, 4 Nov 2007 22:28:03 -0500 (EST): >Maybe "NoPL" is better... >So, NoPL or TNNN... Now, then: What about repeaters which are not depending upon a continous subtone, but "opened" with a 1750 Hz tone burst? -- 73 de Jan, LA2BBA Hvaler, Norway