Re: [USRP-users] USRP X310 PCIe connection Driver Problem

2019-06-04 Thread akin soysal via USRP-users
Hi, Thanks Nicole. We solved the problem by installing centos 7.0. It performs a lot better with real time constraints. Akın 4 Haz 2019 Sal 01:40 tarihinde Nicole Bienert şunu yazdı: > Hi, > > I was having the same problem, but I figured it out. Shut everything down, > then turn on the SDR fir

Re: [USRP-users] offset tuning on the TwinRX

2019-06-04 Thread Jason Roehm via USRP-users
On 6/4/19 12:30 PM, Jason Matusiak via USRP-users wrote: An associate was asking me about the TwinRX (which I haven't really used).  He apparently uses offset tuning on the B series often for his gnuradio flowgraphs.  He was trying to do it with the TwinRX and can't find the hooks for it.  I l

Re: [USRP-users] B210: 1/f noise and LO offset

2019-06-04 Thread Nick Foster via USRP-users
Did you make sure to select the external reference when creating the UHD device? On Tue, Jun 4, 2019, 7:11 AM Erik Heinz via USRP-users < usrp-users@lists.ettus.com> wrote: > Thank you for the explanation. > > I tried using an external reference clock (HP 58503A). Unexpectedly, this > made no dif

Re: [USRP-users] B210: 1/f noise and LO offset

2019-06-04 Thread Torell, Kent L via USRP-users
I think I'm misunderstanding what you are measuring. From my radio experience, I immediately assume you are measuring the phase noise of a synthesized tone. But the spectrum you see isn't quite right for that. Re-reading your original post, are you simply capturing the noise of the USRP, with

[USRP-users] offset tuning on the TwinRX

2019-06-04 Thread Jason Matusiak via USRP-users
An associate was asking me about the TwinRX (which I haven't really used). He apparently uses offset tuning on the B series often for his gnuradio flowgraphs. He was trying to do it with the TwinRX and can't find the hooks for it. I looked around briefly and came up empty as well. I assume t

Re: [USRP-users] B210: 1/f noise and LO offset

2019-06-04 Thread Lundberg, Daniel via USRP-users
Just a couple of sanity checks on this...You have to make sure that 1) You don't already have a GPSDO installed on your B210. If you do, the external reference won't make it in. 2) Assuming you don't have the GPSDO, you have to tell the B210 to use the external reference instead of i

Re: [USRP-users] B210: 1/f noise and LO offset

2019-06-04 Thread Erik Heinz via USRP-users
Thank you for the explanation. I tried using an external reference clock (HP 58503A). Unexpectedly, this made no difference at all. The noise is still exactly the same. Erik Heinz -- Supracon AG Dr. Erik Heinz An der Lehmgrube 11 07751 Jena Tel.: +49 3

Re: [USRP-users] Error in frame Equalizer

2019-06-04 Thread Michael Dickens via USRP-users
Hi Sneha - This is a GR issue, not a USRP issue, so you'd be better off querying that email list (possibly along with this list, as you note a X310 that you're using). I'm following up here for completion. I'll reply to you & the GR list after this email. - MLD On Tue, Jun 4, 2019, at 9:50 AM,

Re: [USRP-users] USRPs time wrong by factor of two

2019-06-04 Thread Fabian Schwartau via USRP-users
Does anyone know if this problem is fixed in the current master? Am 13.05.2019 um 12:41 schrieb Fabian Schwartau via USRP-users: Thanks for that. IT is quite interesting, that it also does not work with their own example. I would expect that all examples would be run on different test beds befor

Re: [USRP-users] Timed frequency switching on multiple channels not possible

2019-06-04 Thread Fabian Schwartau via USRP-users
Is there any update from Ettus on this issue? It is bothering me quite a lot... Am 09.05.2019 um 20:01 schrieb Marcus D. Leech via USRP-users: On 05/09/2019 09:05 AM, Fabian Schwartau via USRP-users wrote: Hi, is there any update regarding this issue? Ettus R&D is aware, and they're being loo