Matt E. wrote:
Bruhtesfa E. wrote:
I have read that the VCO on daugherbords uses PLL frequency synthesizer
by using the USRP clock as a reference. If I syncronize the two USRPs(to
work as a master and slave), will the Daughterboards,XCVR2450 operating
on them become frequency and phase synchronized?
YES. That is the whole point.
Each XCVR2450 has its own local oscillator which is locked to the master
clock on the USRP motherboard. You can make both USRPs share the same
master clock by following the directions above. You CANNOT make both
XCVRs use the same local oscillator, you can only make them lock their
own LOs to the master clock. However, both will then produce
phase-locked, frequency-locked output.
Also on the USRP clocking notes, a step is desribed to “disable the
daughterboard clock and enable the motherboard clock”. So, which is the
reference for the PLL frequency synthesizer by default, the
daughterboard clock or the motherboard clock?
That does not apply to you. That is for old RFX boards, not XCVR2450
But,could I ask you 2 more questions please!
1.Where can i get the specification,block diagrams or schematics(PCB)
for this XCVR2450?
2.Currently I am using Gnuradio 3.0, but i want to update to the upto
date version. So, does this board has compatibility(works without
problem) with the newest versions of gnu radio?