Hi I suspect that you have a ground offset between the OCXO's ground return and the DAC's ground reference. The signal *should* be DC, Shielding it won't hurt, but it really should not help much. If anything is an issue a simple R/C filter at the OCXO pin should nuke it better than coax will.
Bob On Sep 26, 2013, at 8:09 PM, Bob Stewart <b...@evoria.net> wrote: > I made some minor hardware changes to my GPSDO today and I see that it's > locked to a new DAC voltage about 21mV higher. So, I was wondering about > shielding the short run to the OCXO. I have immediately available RG-174 and > I'm putting that in. But, should this be some sort of steel shelled > semi-rigid coax? Maybe it's a dumb question, but I thought I'd ask. > > Bob - AE6RV > _______________________________________________ > 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. _______________________________________________ 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.
