[Hackrf-dev] HackRF and Raspberry Pi

[Marc Pàmies Massip]

Hi Cinaed,

Thanks for your answer.


Do you mean that depending of what kind of signals you want to detect it might be worth to use sample rates below the minimum recommended? For example, to look for GSM channels (BW=200kHz) I should use a lower rate?

When I first asked the question I said that the lower limit is 8MHz because I read it somewhere a long time ago, but after sending the message I was looking at the specs again and I saw that the minimum supported sample rate is 2MHz (here: https://github.com/mossmann/hackrf/wiki/HackRF-One [https://github.com/mossmann/hackrf/wiki/HackRF-One]). Which one is the real minimum?

Marc.
On 23/02/2017 20:41:40, Cinaed Simson <cinaed.simson at gmail.com> wrote:
On 02/23/2017 11:05 AM, Marc Pàmies Massip wrote:
> Hello,
>
> I wanted to ask if it is feasible to use a HackRF with a Raspberry Pi. I
> have seen that some people use both hardware together, but it sounds
> strange to me considering that the minimum sample rate recommended for
> the HackRF is 8 MHz. A Raspberry Pi can support such a high sample rate?
> Are there any other drawbacks to consider if this combination was to be
> done?
>
> Thank you in advance.

The sampling rate depends upon the problem.

For instance, using a 8 MHz sampling rate to listen 16 kHz signal is
overkill.

No, the pi can't support high sampling rates.

Even the Raspberry pi3 is to slow to run an SDR and the HackRF and do
anything useful - except possible capture signals directly with the HackRF.

And even then writing to microSD card may limit the sampling rate.

Try an Odroid-XU4.

>
>
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