SDR/USRP devices

GNU Radio
1

Hello,

I’ve been searching a lot about SDR and USRP devices to purchase. All I
need is a board with a receiver port (transmitter is not important for
now)
and it’s necessary to be compatible with Gnuradio. There are some
options,
but I don’t have experiency or enough knowledge to choose one of them (I
don’t know the brands, if they are reliable, etc).

I found RTL2838U/R820T2. Is it good? What are the other boards that you
know? Sorry about the questions, but I’m kind of new here.

2

Hi Pedro,

You will, as for any device, need to figure out what you need,
specification-wise. I’m obviously a bit biased, but no one else might
even be able to help you unless you wrote some numbers: frequencies
you’re interested in, bandwidth you want to sample at once, stability,
available interfaces, cost range etc.

Best regards,
Marcus

Am 17. August 2015 20:13:38 MESZ, schrieb Pedro Gabriel A.
[email protected]:

3

Marcus,

Below $120 is okay for me. Actually, the features are not important for
me
now, because I just want to simulate a Cognitive Radio without a lot of
details. I just wanna see it working to study and learn about this
process.
Like I said, it’s important to have a receiver port and be compatible
with
Gnuradio.

I saw that Antony asked about this on Ruby Forum (it seems he has the
same
interests, but no one could help him, so I came here to the mailing
list).

Thanks for any help.

Cheers,
Pedro Gabriel A.

2015-08-17 15:27 GMT-03:00 Marcus Müller [email protected]:

4

the features are not important for me now
Then you can literally buy a rock. It has pretty bad reception, and all
receivers built with rocks have a 50% bit error rate. (just kidding)

SDR peripherals are technical equipment. There has to be some
specification of what you need. Like Bandwidth. Make yourself acquinted
with the parameters I listed in my last email, and what they mean. Then
you will surely come to some conclusion of what you need.

I just want to simulate a Cognitive Radio without a lot of details
CR doesn’t specify what you actually want to do at all, technically.
For simulation you’d not need any hardware at all - so maybe you’d want
to specify more closely what you want to do!

Antony asked about this on Ruby Forum
For people finding this later on via Google: This is NOT ruby forum.
Ruby forum is nothing but a bad interface to the GNU Radio mailing
list archives, which you can find at lists.gnu.org, and an even worse
implementation of a mailing list client. You’re doing it right by using
email to communicate with us!
Also, there’s a lot of Mails going through this mailing list, so I don’t
know which Antony or which email you are referring to.

Best regards,
Marcus

5

Marcus,
So everyone is thinking it: Show a little discuss-gnuradio love and set
up an educational one time group buy. I have had SDR envy for some
time; stuck with RTL/Hermes/Funcube, when what I really need is some new
Ettus hardware. It NEVER shows up on Ebay it seems.
Think how many less “I can’t get gnuradio to work with ; can’t you guys do this for me on this discussion list”
responses you would have to create.
Greg

  From: Marcus Müller <[email protected]>

To: Pedro Gabriel A. [email protected];
[email protected]
Sent: Monday, August 17, 2015 2:27 PM
Subject: Re: [Discuss-gnuradio] SDR/USRP devices

Hi Pedro,

You will, as for any device, need to figure out what you need,
specification-wise. I’m obviously a bit biased, but no one else might
even be able to help you unless you wrote some numbers: frequencies
you’re interested in, bandwidth you want to sample at once, stability,
available interfaces, cost range etc.

Best regards,
Marcus

Am 17. August 2015 20:13:38 MESZ, schrieb Pedro Gabriel A.
[email protected]:
Hello,

I’ve been searching a lot about SDR and USRP devices to purchase. All I
need is a board with a receiver port (transmitter is not important for
now) and it’s necessary to be compatible with Gnuradio. There are some
options, but I don’t have experiency or enough knowledge to choose one
of them (I don’t know the brands, if they are reliable, etc).

I found RTL2838U/R820T2. Is it good? What are the other boards that you
know? Sorry about the questions, but I’m kind of new here.

6

Hi Pedro,

Buy a RTL dongle, since they’re almost free. If it doesn’t do what you
want, then you’ll know more about what you want.

Jeff