On 24/02/2023 04:14, Vermeulen, Bas (Consultant) via USRP-users wrote:
Hi,
I am trying to get a working multi-usrp setup with both X300 and N300.
I currently have a signal generator generating a 10 MHz clock and a
1PPS signal.
Those are connected to a splitter (each), and then connected to both
X300s REF IN and 1PPS IN.
This setup works, and with srsRAN I can use two X300's to get an LTE
2x2 MIMO setup with the throughput I get with one X300.
If I connect the same signal to the N300, the N300's PLL fails to get
a lock.
Does anyone have any idea what goes wrong there? We're getting a WR
switch somewhere in the future, but I would like to be able to test
with the N300s before it arrives.
Regards,
Bas Vermeulen
What is the level of your PPS and 10MHz signals as seen by the N300?
1PPS should be about 5VP-P, and somewhere around
+2-3dBm for the 10MHz, but not to exceed +10dBm.
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