Re: [USRP-users] Bug about for E312

2017-10-22 Thread liu Jong via USRP-users
Hi Marcus, I am sorry,the first link as below: http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2017-October/026761.html 2017-10-21 21:17 GMT+08:00 Marcus Müller via USRP-users < usrp-users@lists.ettus.com>: > Dear Jon, > > that first link points to your own GMail account. We can't do

[USRP-users] Property 'compxlib.compiled_library_dir' is deprecated for a Modelsim simulation for noc_block_skeleton_tb

2017-10-22 Thread Swanson, Craig via USRP-users
Support, I am trying to simulate using Modelsim and I am getting the following warning: WARNING: [Common 17-599] Property 'compxlib.compiled_library_dir' is deprecated for object type 'project'. Use 'compxlib._compiled_library_dir'. # launch_simulation INFO: [USF-ModelSim-47] Finding simulator

Re: [USRP-users] interpretation of received signal

2017-10-22 Thread Marcus Müller via USRP-users
Hi Nirmala, On 22.10.2017 18:22, Nirmala Soundararajan via USRP-users wrote: > Hi Marcus, > > I have no idea why you said that but I certainly did not mean to > directly take the values that Marcus L mentioned and straight away add > it in my report!. Since I am just learning about SDR, I just wan

Re: [USRP-users] N210 Genarate OOK Signal With LFTX/RX

2017-10-22 Thread Marcus Müller via USRP-users
Hi! So, you'll need to be a little more specific than "it didn't work". How did you configure your random source? Did you use pulse shaping? There's quite a bit, even to an OOK transmitter, that one can vary and do right or wrong. With the info you're giving, I'm afraid it's impossible to help yo

[USRP-users] N210 Genarate OOK Signal With LFTX/RX

2017-10-22 Thread ???? via USRP-users
I WANT to use my N210 with LFTX&LFRX to genarate OOK signal ,I used the random source and follow With a USRP sink ,it didn't work ,then i try to use the BPSK demo, I set the center frequency to 0 but it also didn't work .So what's wrong with my methods?and How could I get OOK signal ?_

[USRP-users] interpretation of received signal

2017-10-22 Thread Nirmala Soundararajan via USRP-users
Hi Marcus, I have no idea why you said that but I certainly did not mean to directly take the values that Marcus L mentioned and straight away add it in my report!. Since I am just learning about SDR, I just wanted an idea of what could be the minimum power levels that an SDR receiver can fairly c

[USRP-users] Underflows with simple rx/tx GNU Radio flowgraph on USRP X310 under RFNOC UHD

2017-10-22 Thread Piotr Krysik via USRP-users
Hi all, I'm prepared a basic GNU Radio flow-graph that does simultaneous transmission and reception (see the attachment). For USRP X310 and RFNOC UHD (version above 3.10.x) soon after starting the flow-graph there is a lot of buffer underflows (even for low sample rate like 1MS/s). For pre-RFNOC U

Re: [USRP-users] interpretation of received signal

2017-10-22 Thread Marcus Müller via USRP-users
Niemals, > The "faintest reasonable signal level" that a typical SDR can process!  > (Typically  around -120  to  -130 dBm).!   no! You can process much weaker signals, too, given enough processing gain. Marcus was just giving an example. Whether you can "see" what is in the air depends on the