We are not able to set Bandwidth below 2.5 Mhz using the Soapy API with Lime USB. Below is the error we see. API used is SoapySDRDevice_setBandwidth.
For our NBIoT Base station, we would need a 200 kHz Bandwidth configuration. Is that possible?
When we were experimenting, however by reducing the sampling rate (8 times) we were able to reach a bandwidth range of 800Khz in the output waveform. We could not go below this.
What is the relation between sampling rate to bandwidth variation on the Lime RF?