HackRF
At 8MHz sampling rate, and using the minimum 1.75MHz bandwidth filter, this is the response:
You can see that the attenuation is more than 60dB at +/-2.8MHz, which is more than sufficient to remove significant
adjacent spectrum interference before the ADC digitizes the baseband. If using this configuration to get a 2MHz
sampling rate, use a GNU Radio block after the 8MHz source that performs a 4:1 decimation with a decently sharp
low pass filter (complex filter with a cut-off of <1MHz).
34 Chapter 10. Tips and Tricks
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