I have a few questions relating to the NCO:
Is it possible to change the digital filter bandwidth in Soapy? I just noticed when reading Receiving and transmitting at 1MHz that the
Lime Suite Sinkin GRC has both
Analog Filter BWand
Digital Filter BW. I’m using the NCO to shift the RX or TX so I use a wider than necessary BW.
Am I correct in assuming the
Analog Filter BWis around the LO while the
Digital Filter BWwill be around the frequency when taking the NCO into account?
Is there a difference in TX when using the NCO, as opposed to shifting the samples myself? From Frequency hopping transmit [FIXED] I was able to change the NCO in 0.350ms, but I can shift the signal I want to transmit faster than that. So is there any difference between the 2 options, apart from ease of use?