On 04/05/2018 06:20 AM, ALEJANDRO BLANCO PIZARRO via USRP-users wrote:
Dear community,
I would like to add an external clock to two USRP in order to have the
same clock discarding possible synchronization issues. The desirable
frequency of the clock would be 184 MHz (compatible with LTE).
And I was wondering about what will be the possible solutions:
--> It is possible to use a sine signal with a desirable frequency as
an external clock? In this case what will the amplitude of the signal
be? Unfortunately, I do not have a PWM generator in order to use it as
a clock.
--> It is possible to use another USRP as an external clock using a
transmit basic daughterboard ?
Thanks you so much in advance.
Best regards,
Alejandro
X310 supports an external clock already, via the 10MHz front-panel
input. The master clock (which can be 184.32Mhz, to support LTE) is
then derived
from that. Just feed a 10Mhz clock to all your X310s.
See:
https://kb.ettus.com/Synchronization_and_MIMO_Capability_with_USRP_Devices
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