sdr transceiver wide at 5 Mhz

pavel-demin / red-pitaya-notes

Notes on the Red Pitaya Open Source Instrument

http://pavel-demin.github.io/red-pitaya-notes/

MIT License

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sdr transceiver wide at 5 Mhz #480

Closed madmaxII closed 7 years ago

madmaxII commented 7 years ago

Hello Pavel,

is it possible to configure the sdr transceiver wide to 5Mhz bandwidth?

I tried to set the CIC with R = 10 (using the script to generate fir coefficients), but it does not work well.

Thanks in advance.

pavel-demin commented 7 years ago

Setting the CIC decimation rate isn't enough. You'll also need to change the FIR sample rate. But the problem is that after these changes this configuration won't fit into the Red Pitaya FPGA. I'd suggest to try the following changes:

make the CIC decimation rate fixed,
reduce all data and coefficient width by 4 or 8 bits.