Re: [Discuss-gnuradio] Remote Access to USRP testbed with GNU Radio

On Fri, Oct 7, 2011 at 7:01 AM, Robert McGwier <address@hidden> wrote:

I believe people are answering the question but are slightly off target.

Create a group on your Linux distribution call USRP, make sure those users you want control the USRP as users (AND NOT ROOT) are in this group. The go read the gnuradio wiki about the other changes granting device permissions etc. This is how remote users gain control of the USRP locally without sudo as well as over SSH whether the machine is accessible over a LAN only or the full internet.

Bob

On Oct 6, 2011 7:15 PM, "Ian Buckley" <address@hidden> wrote:

Remember that you in fact are not required to "Login" to the USRP at all, it isn't an interactive device, more like a peripheral device to a host computer. Thus your remote access limitation is purely dependent on the remote host you utilize to run GNURadio to interface to the USRP. The main issue you are like to run into is using update intensive GRC graphical tools such as FFT via X or VNC which can be very problematic over WANs. In terms of the USRP itself, if the location is truly remote with no local support then it would be wise to utilize A USRP other than the USRP2 since this model requires the SDCard to be physically replaced to upgrade firmware+FPGA. It would also be wise to have a remote accessible PDU so you can power cycle the USRP if necessary.

I've built austere "lights out" remote satellite ground stations that use USRP's with great success.

-Ian

On Oct 6, 2011, at 3:31 PM, Kunal Kandekar wrote:

I have accessed and used a USRP over SSH before. In fact, I accessed it over the Internet, not just a LAN. Although I was not the one who set it up, as far as I know, nothing additional had to be done to enable this. I simply logged in as the user account under which GNU Radio had been installed. The machine was running Ubuntu, in case it matters.

Kunal

On Thu, Oct 6, 2011 at 6:04 PM, Guanbo Zheng <address@hidden> wrote:

Hi, all

We are interesting to build up a USRP testbed which allowed the guest remote access to do some experiments.

I have seen someone's youtube video that they control the USRPs to transmit different signals through SSH access.

But I want to double check if it allowed guest control of USRP devices ?

Are there any other settings I need to take care of, in order to implement this?

Thanks a lot for any suggestions!

--
Regards,
Guanbo

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Bob McGwier

ARS: N4HY

From:	Robert McGwier
Subject:	Re: [Discuss-gnuradio] Remote Access to USRP testbed with GNU Radio
Date:	Fri, 7 Oct 2011 08:53:30 -0400