We are the seeing the Spurious signaling and would like to get help from NI support team for Transmisison filter provision from over the UHD driver. Our product at customer end is blocked due to FCC is not successfully done.
As per latest FCC testing, we are unable to utilize n5 and n77 band (3450-3550 MHz) for our B210 and N310 NIAB boxes since it is failing FCC Spurious testing (FCC testing results attached).
For B5, there are high spurious above -13 dBm coming at 3495 Mhz band.
For n77, since FCC limit is -40 dbm, Spurious emissions are above -40 dBm.
We have tried to optimized all possible digital domain Txgain parameter to reduce the port power but unable to reduce the spurious emissions (Limit: n5 -> -13 dBm & n77 -> -40 dBm).
