[Hackrf-dev] not so good experience for my first SDR

Chuck McManis chuck.mcmanis at gmail.com
Tue Apr 11 15:06:49 EDT 2017


The limit here is the USB2.0 speed. If you want to go faster than that you
need an SDR with USB3 connectivity.

On Tue, Apr 11, 2017 at 11:16 AM, mohammed hamoud alkindy <
mohammed at omantel.net.om> wrote:

> Well, yes I was trying all possibilities but you are saying higher
> sampling will not work, my mac is relatively ne machine. I can go around
> this limitation by reducing bandwidth I think. Otherwise I am still in
> searching to make it work
>
>
>
>
>
> Regards
>
>
>
>
>
> *From: *Chuck McManis <chuck.mcmanis at gmail.com>
> *Date: *Monday, April 10, 2017 at 11:28 PM
> *To: *Mohammed AlKindy <mohammed at omantel.net.om>
> *Cc: *Dominic Spill <dominicgs at gmail.com>, "hackrf-dev at greatscottgadgets.
> com >> hackrf-dev" <HackRF-dev at greatscottgadgets.com>
>
> *Subject: *Re: [Hackrf-dev] not so good experience for my first SDR
>
>
>
> Based on that picture, are you really trying to set the HackRF to a 32Mhz
> sample rate? That won't work, but 10Mhz would (as would 20Mhz on relatively
> modern computers).
>
>
>
> --Chuck
>
>
>
>
>
> On Mon, Apr 10, 2017 at 11:16 AM, mohammed hamoud alkindy <
> mohammed at omantel.net.om> wrote:
>
> Got it now thanks, but yet to make it work, do not know what I do wrong
> see attached
>
>
>
>
>
>
>
> *From: *Dominic Spill <dominicgs at gmail.com>
> *Date: *Monday, April 10, 2017 at 9:38 PM
>
>
> *To: *Mohammed AlKindy <mohammed at omantel.net.om>
> *Cc: *"hackrf-dev at greatscottgadgets.com >> hackrf-dev" <
> HackRF-dev at greatscottgadgets.com>
> *Subject: *Re: [Hackrf-dev] not so good experience for my first SDR
>
>
>
> On 10 April 2017 at 11:25, mohammed hamoud alkindy <
> mohammed at omantel.net.om> wrote:
> >
> > Thank for quick response, I can see that with gqrx but what about when
> you execute  the block from gnuradio-companion I could not see a field for
> that!!!!
>
> It's a setting on the osmocom source block.  See the attached image.
>
> Thanks,
>
>   Dominic
>
> > From: Dominic Spill <dominicgs at gmail.com>
> > Date: Monday, April 10, 2017 at 9:21 PM
> >
> > To: Mohammed AlKindy <mohammed at omantel.net.om>
> > Cc: "hackrf-dev at greatscottgadgets.com >> hackrf-dev" <
> HackRF-dev at greatscottgadgets.com>
> > Subject: Re: [Hackrf-dev] not so good experience for my first SDR
> >
> >
> >
> > On 10 April 2017 at 10:47, mohammed hamoud alkindy <
> mohammed at omantel.net.om> wrote:
> > >
> > > Still trying to make my Hackrf work with gnu-companion but I have
> stupid question, how does the osmocom source block know that I am using
> hackrf-one?
> >
> > You can specify the HackRF that you wish to use in the "device
> arguments" field of the osmocom source block.  If you set it to "hackrf=0"
> it will use the first HackRF that it finds.  To specify a particular
> HackRF, replace the 0 with the serial number of the HackRF (found from
> hackrf_info).
> >
> > With no device arguments set, osmocom searches for devices that it
> supports in turn.  However, this currently triggers a segfault in libuhd on
> my system, so I always specify the HackRF in the device arguments field.
> >
> > cheers,
> >
> >  Dominic
> >
> >
> > > From: Dominic Spill <dominicgs at gmail.com>
> > > Date: Monday, March 13, 2017 at 11:11 PM
> > > To: Mohammed AlKindy <mohammed at omantel.net.om>
> > > Cc: "n0p [Luis Bernal]" <lbernal at gmail.com>, "
> hackrf-dev at greatscottgadgets.com >> hackrf-dev" <
> HackRF-dev at greatscottgadgets.com>
> > > Subject: Re: [Hackrf-dev] not so good experience for my first SDR
> > >
> > >
> > >
> > > On 13 March 2017 at 13:09, mohammed hamoud alkindy <
> mohammed at omantel.net.om> wrote:
> > > >
> > > > Yes I use gqrx and watched the lessons from greatscottgadgets. if
> gqrx could allow to introduce throttling I would hsve test it but could not
> see such feature
> > >
> > > What sample rate are you using?  Overruns are caused by the host
> system not keeping up with the amount of data being passed to it by the
> HackRF.  Try reducing the sample rate to see if things improve.
> > >
> > >
> > > > From: "n0p [Luis Bernal]" <lbernal at gmail.com>
> > > > Date: Monday, March 13, 2017 at 9:33 PM
> > > > To: Mohammed AlKindy <mohammed at omantel.net.om>
> > > > Cc: "hackrf-dev at greatscottgadgets.com >> hackrf-dev" <
> HackRF-dev at greatscottgadgets.com>
> > > > Subject: Re: [Hackrf-dev] not so good experience for my first SDR
> > > >
> > > >
> > > >
> > > > What software are you using? gqrx is a good choice to start playing
> with SDRs
> > > >
> > > >
> > > >
> > > > I also suggest you start by watching the GNURadio tutorial series by
> Mike Ossman:
> > > >
> > > > https://greatscottgadgets.com/sdr/
> > > >
> > > >
> > > >
> > > > 2017-03-13 17:50 GMT+01:00 mohammed hamoud alkindy <
> mohammed at omantel.net.om>:
> > > >
> > > > Hello SDR world, not so nice to start my posting in this mailing
> list with is kind of post, but when I got introduced to SDR I thought I
> will spend exciting evening to explore this new interest. But my experience
> is just ending with allot of OOOOOOOOOOOO or aUaUaUaU !!!! I read allot
> about what could be the reasons that is either the double clock or my sound
> card is not able to handle the sampling rates , etc…..but so far not able
> to solve the challenge. I just got my new MacBook Pro with good
> configurations and the sound card is configured to handle 44.1Khz. I did
> upgrade the Hackrf firmware to 2017-02-1 package. I am using gnuradio and
> my macport should take care of the updating to the latest ver. But again I
> do not seem to be able to hear even a simple FM station just noisy rains ☹
> > > >
> > > >
> > > >
> > > > Deeper insights will be really appreciated
> > > >
> > > >
> > > >
> > > > Mohammed alkindy
> > > >
> > > >
> > > > _______________________________________________
> > > > HackRF-dev mailing list
> > > > HackRF-dev at greatscottgadgets.com
> > > > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > HackRF-dev mailing list
> > > > HackRF-dev at greatscottgadgets.com
> > > > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
> > > >
>
>
> _______________________________________________
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>
>
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