I have been unsuccessful in locating data sheets for the Rakon E6982LF VCTCXO used in the XTRX and Rakon does not seem forthcoming with this information. I am particularly interested in the phase noise of this device. I am also interested in specifications for the device used in the LimeSDR-USB which in the BOM LimeSDR-USB_1v4_BOMr7 is either the Rakon 6245LF or E5280LF. Does anyone on this forum have access to these data (and willing to share)?