Hi All,
Thank you all for replying..
@Fosforo I will check the reddit..
@Martin I checked the gnuradio site. I understand the quality issues and
limitations of a usb dongle of sdr. But my main intention is to not leave
working on gnuradio.So I was looking for alternatives to work and learn on
my own. I have no specific project in mind right now. I feel that if you
leave working on this platform for a few months, you will take a long time
to get back again because of the rate at which changes happen. So just
wanted to be in touch with it.
@Ossman Thanks. I will buy one of these two and try.
@Marcus Thanks for a detailed explanation on the performance limits and
limitations for usb based sdr's. I understand it better now.
On Sun, Jan 20, 2013 at 12:31 PM, Marcus D. Leech <[email protected]> wrote:
> On 01/20/2013 10:49 AM, Michael Ossmann wrote:
>
>> On Sat, Jan 19, 2013 at 07:10:31PM -0500, Karan Talasila wrote:
>>
>>> http://www.amazon.com/DVB-T-**Receiver-Low-Cost-Software-**
>>> Defined/dp/B008XFDHWW/ref=sr_**1_4?ie=UTF8&qid=1358639740&sr=**
>>> 8-4&keywords=rtl+sdr<http://www.amazon.com/DVB-T-Receiver-Low-Cost-Software-Defined/dp/B008XFDHWW/ref=sr_1_4?ie=UTF8&qid=1358639740&sr=8-4&keywords=rtl+sdr>
>>>
>>> http://www.amazon.com/Newsky-**Receiver-Low-Cost-Software-**
>>> Defined/dp/B008DCBS94/ref=sr_**1_2?ie=UTF8&qid=1358639740&sr=**
>>> 8-2&keywords=rtl+sdr<http://www.amazon.com/Newsky-Receiver-Low-Cost-Software-Defined/dp/B008DCBS94/ref=sr_1_2?ie=UTF8&qid=1358639740&sr=8-2&keywords=rtl+sdr>
>>>
>> Either one of those is fine. NooElec is a reputable seller.
>>
>> You can see the difference in operating frequency range for the E4000
>> vs. FC0013 here:
>>
>> http://sdr.osmocom.org/trac/**wiki/rtl-sdr<http://sdr.osmocom.org/trac/wiki/rtl-sdr>
>>
>> I have heard that the FC0013 has somewhat better receive sensitivity
>> than the E4000, but I have not verified that. The E4000 has a wider
>> operating frequency range.
>>
>> ______________________________**_________________
>> Discuss-gnuradio mailing list
>> [email protected]
>> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio>
>>
>>
>> Something to note about FC0013 based dongles is that while the FC0013
> has an L-band input, it's typically *NOT CONNECTED* on any of the
> dongles out there.
>
> The E4000 is great tuner, but out of production now, due to the company
> who made it going out of business. The up and coming
> logical replacement in the market for the E4000 is the R820T, which
> covers a continuous frequency range of 24Mhz to about 1.5GHz, with
> sensitivity falling off precipitously above 1.3GHz, but overall a very
> nice tuner. Again, eBay has them in two different physical formats.
>
> But these things aren't, in any sense, comparable to a USRP in many
> dimensions. The maximum no-samples-dropped sample rate is
> only 2.4Msps (even though you can ask for 3.2Msps, the hardware starts
> dropping samples above 2.4Msps). They have an 8-bit
> ADC, so maximum dynamic range is 48dB. The decimator inside the
> RTL2832U chip isn't very good, and only really works properly at
> 2Msps--alias suppression at other sample rates isn't nearly as good.
> Isolation between the digital side and RF receiver side is poor,
> which means more spurs and higher noise floor than devices that are more
> "purpose built".
>
> But for $10.00 apiece in some cases (patiently waiting for the ebb and
> flow of market-economics on eBay to drive the price down can allow
> you to pick them up for as little as $10.00 apiece), they're a good
> value for cheap experiments.
>
> --
> Marcus Leech
> Principal Investigator
> Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org
>
>
>
>
> ______________________________**_________________
> Discuss-gnuradio mailing list
> [email protected]
> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio>
>
--
Regards
Karan Talasila
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
