On 9/19/2013 5:33 AM, Chris Albertson wrote: > But 10KHz does allow > a simpler design for the GPSDO that can be done 100% analog A very simple, full analog, GPSDO that exploits the 10 kHz from a Jupiter GPS receiver can be found here : http://gpsdo.i2phd.com/ 73 Alberto I2PHD