Hi,
On 11.02.2012 13:46, Antti Palosaari wrote:
> Now someone should make Linux driver that can tune that device to
> different frequencies and look what it really can do.
I sniffed the Windows driver and wrote a small libusb-based program
[1], which can tune to a given frequency and record the I
On Fri, 2012-02-10 at 20:29 -0600, David Hagood wrote:
> On Fri, 2012-02-10 at 21:08 -0500, Andy Walls wrote:
> >
> > Randomly checking some of the data with GNUplot, if 2.5 Msps is the
> > sampling rate, then the fastest freq I saw was about 50 kHz.
> How'd you analyze the data - assume it was ba
On Sat, Feb 11, 2012 at 05:33:05PM +0200, Antti Palosaari wrote:
> I opened my device and there is Elonics E4000 [1] silicon tuner.
> That tuner seems to be a little crazy beast! Supports frequencies
> from 64 to 1678 MHz and very many modulations. So for my eyes it is
> almost idea cheap SDR. No i
On 11.02.2012 17:15, Daniel Glöckner wrote:
All in all, I don't think there can be one API that fits all devices
without limiting their functionality. Maybe a UVC or LabVIEW like interface
with blocks for tuners, ADCs, decimators, DMA sinks, etc. is suitable,
but then applications will end up bei
On Sat, Feb 11, 2012 at 02:46:34PM +0200, Antti Palosaari wrote:
> I did that whole last night up to 6 am. I also ended up very similar
> blocks, but failed to convert bytes as UChar. I tried to add
> constant between Deinterleave and UChar To Float but it wasn't
> possible. So my first idea was to
On 11.02.2012 09:00, Alistair Buxton wrote:
On 9 February 2012 15:01, Antti Palosaari wrote:
Decode it and listen some Finnish speak ;)
Done. grc and output.wav here: http://al.robotfuzz.com/~al/rtl2832/
The trick was realising that the UChar to Float converter does not
adjust it's output t
On Sat, Feb 11, 2012 at 07:00:16AM +, Alistair Buxton wrote:
> The source file appears to be about 2 to 2.2 million samples per
> second. Any higher than that and the person speaking sounds like a
> chipmunk. Maybe 22050 * 1000 or 1024? Does any Finnish station
> broadcast "pips" like the BBC d
On 9 February 2012 15:01, Antti Palosaari wrote:
> Decode it and listen some Finnish speak ;)
Done. grc and output.wav here: http://al.robotfuzz.com/~al/rtl2832/
The trick was realising that the UChar to Float converter does not
adjust it's output to the range -1.0,1.0 that the wideband FM
demo
On Fri, 2012-02-10 at 21:08 -0500, Andy Walls wrote:
>
> Randomly checking some of the data with GNUplot, if 2.5 Msps is the
> sampling rate, then the fastest freq I saw was about 50 kHz.
How'd you analyze the data - assume it was baseband I/Q and do an FFT?
If so, and if this was digitized baseba
On Thu, 2012-02-09 at 17:21 +0200, Antti Palosaari wrote:
> On 09.02.2012 17:11, Patrick Boettcher wrote:
> > On Thursday 09 February 2012 16:01:12 Antti Palosaari wrote:
> >> I have taken radio sniffs from FM capable Realtek DVB-T device. Looks
> >> like demodulator ADC samples IF frequency and pa
Antti Palosaari wrote:
>On 09.02.2012 17:11, Patrick Boettcher wrote:
>> On Thursday 09 February 2012 16:01:12 Antti Palosaari wrote:
>>> I have taken radio sniffs from FM capable Realtek DVB-T device.
>Looks
>>> like demodulator ADC samples IF frequency and pass all the sampled
>>> data to the a
On 09.02.2012 17:11, Patrick Boettcher wrote:
On Thursday 09 February 2012 16:01:12 Antti Palosaari wrote:
I have taken radio sniffs from FM capable Realtek DVB-T device. Looks
like demodulator ADC samples IF frequency and pass all the sampled
data to the application. Application is then respons
On Thursday 09 February 2012 16:01:12 Antti Palosaari wrote:
> I have taken radio sniffs from FM capable Realtek DVB-T device. Looks
> like demodulator ADC samples IF frequency and pass all the sampled
> data to the application. Application is then responsible for
> decoding that. Device supports D
I have taken radio sniffs from FM capable Realtek DVB-T device. Looks
like demodulator ADC samples IF frequency and pass all the sampled data
to the application. Application is then responsible for decoding that.
Device supports DVB-T, FM and DAB. I can guess both FM and DAB are
demodulated by
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