> Hi > > The 260's are better for environmental than a 10811, same / worse than a > 1938. The "typical" 260 beats the "typical" 10811 or 1938 on short term / > medium term stability. There are some 10811's and 1938's that will indeed > beat some 260's for short term stability. > > Bob _______________________________________________ One of the GPSDOs I've had running for some time is an HP Z3811 with a a 1998 date code and a MTI 260 OXCO. Before you say I'm crazy, Z3811 is what the labels on the chips say. The name on the outside of the unit is Lucent RFTG-u REF1. Another similar Lucent unit had a clone of the 260, same size and pin out, but I have no idea if the specs are close, and that OXCO was an OFC MC895X4-015W with a 1999 date code. Both these OXCOs are 5.000000Mhz.
Like most Lucent units the RFTG-u REF1 was made to run with another back-up unit for redundancy, needed an interconnect cable, and has no information available. I managed to figure out a way to make it work as a standalone unit and ran the 5Mhz from the OXCO thru a QBits amplifer to give me 5Mhz output instead of the Lucent standard of 15Mhz. I haven't carefully checked it against the other GPSDOs I have running but with the modifications I made to allow it to work solo, it seems to be a pretty good plug-and-play unit. -Arthur _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.