Hi Di,
Is it on purpose that the transmit and the receive filters are different in this example?
The transmit filter up-samples by 8x (8 samples per symbol).
The receive filter uses 4 samples per symbol and decimates by 4.
The Tx & Rx sampling rates are identical and I had assumed that the filters should therefore also match.
It is also not clear to me why the channel sizes for the input and output of the iio_sys_obj are different (131072 vs 32768).
Thank you,
Arnd