Hi All, Was lucky(?) enough to acquire an early Symmetricom unit, what I believe to be a predecessor of the XL-DC line. Model number is 151-652-387-1. This is a Rubidium unit, and appears to be in good health running open loop.
This particular model requires a down conversion antenna, which I am discovering is a rare item these days. My research so far has revealed that the following Symmetricom model numbers are suitable: 142-401 142-602 142-603 142-610 These antennas expect 12VDC and a 16.368 MHz reference for the LO, and send down a 4.092MHz IF to the receiver card. I'm hoping that someone on the list might have one or be able to connect me with a seller..! Also have a Hughes Network System Time Code (HNSTC) card, Symmetricom model 86-3799-30 that I would be happy to trade if anyone is interested. _Dave KC6UPS 502-489-4527 _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
