[Discuss-gnuradio] Filters in X310

[chu li]

Hello,

i have some questions about the interpolation/decimation filters in the x310 with CBX-120.

In RX direction
1. CIC filter for odd factors in decimation
2. 31-tap half band filters for factors of 2 each, hb_dec,taps=round(2^18* halfgen4(0.7/4,8)))
3. 7-tap half band filters, small_hb_dec, taps2 = 2 * 131072 * halfgen4(.75/8,2)

i want to know which filters are used in TX, and can you tell me the coefficients for the filters.

Best regards,
Li