19/12/2009 9:24pm The LORAN C simulators been working well. 2 New drawing sets. 1 is for 100 KC input and the other is for 1 MC input more common. Also the micro proc reset resistor was dropped to 4.7K. This creates reliable reboots after power on. I have hooked the unit up to an austron and am feeding a RB standard to it and the austron. The austron settles to 1.0 X 10-13 and stays there rock solid. So thats the limit of the austron 2100f. 14/12/2009 6:16pm from 6.8k to 4.7k resistor connected to pin 28 on SXB 28 for better micro boot up