AoA calcuations using 2 bladeRF 2.0 micro Ax4 boards (PLL matching)

[chika-inagaki]

We're working on Angle of Arrival calculations using 2 bladeRF boards. We were wondering if we could lock the internal PLLs of 2 boards using hardware/physically. If not possible, how can we match/calibrate it using software? Thank you!