Hi all, Sorry if this is coming through twice - I sent it once before I subscribed to the list, but didn't know if it went through or not! (I didn't see it in the archives...)
------- I'm having some trouble using an external reference with the Ettus N310. The reference I am using is a FS725 Rubidium Frequency Standard. To test the difference between the internal clock and the external reference, I transmitted a 10MHz signal from the Ettus N310 with and without the external reference. Using just the internal clock of the SDR, the 10MHz signal slowly wanders with respect to the 10MHz signal from the Rubidium Frequency Standard as seen on an oscilloscope. This is to be expected since the stability of the internal clock in the SDR is worse than the Rubidium Frequency Standard. However, when I connect the 10MHz signal from the Rubidium to the external reference of the N310 and tell the N310 to use the external reference, the 10MHz signal that the N310 generates wanders much faster with respect to the 10MHz signal from the Rubidium. This is opposite of what I believe should happen, assuming the N310 is truly using the external reference signal. Have any of you experienced this or have any tips as to what might be going on? Thanks! -Chris
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
