https://kb.ettus.com/N300/N310#Front_Panel
The AD9371 has a divide-by-2 PLL and the input baluns are optimized for RF center frequencies 300 MHz-4 GHz (external LO inputs 600 MHz-8 GHz). Consult the AD9371 user guide on the Analog Devices website for more details on what goes on inside the RF integrated transceiver. Robin Coxe | Chief R&D Program Manager, SDR | Santa Clara, CA | 408.610.6363 ________________________________ From: USRP-users <[email protected]> on behalf of Florian Kaltenberger via USRP-users <[email protected]> Sent: Tuesday, December 4, 2018 7:15 AM To: [email protected] Subject: [USRP-users] synchronizing multiple USRP N310 Hi there, I just discovered that in addition to the external 10MHz reference in, the USRP N310 also has external local oscilator inputs, one for each daughterboard and each TX/RX. So does that mean that in order to synchronize multiple N310 in frequency, phase, and time, it is no longer sufficient to use an octoclock to provide a 10MHz reference and PPS? If so, at what frequency do you have to drive the external LOs and at what power? Florian. -- Follow us on Google+<https://plus.google.com/+OpenairinterfaceOrg>, LinkedIn<https://www.linkedin.com/company/openairinterface>, or Twitter<https://twitter.com/osalliance5g>!
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