Re: [USRP-users] N310 Images with external LO

2019-02-13 Thread Kai-Uwe Storek via USRP-users
ons. > > > > Robert > > > > *From:* USRP-users [mailto:usrp-users-boun...@lists.ettus.com] *On Behalf > Of *Kai-Uwe Storek via USRP-users > *Sent:* Wednesday, February 13, 2019 4:53 PM > *To:* usrp-users@lists.ettus.com > *Subject:* [USRP-users] N310 Images with exter

[USRP-users] N310 Images with external LO

2019-02-13 Thread Kai-Uwe Storek via USRP-users
Hey Folks, I'm struggling with the external LO feature of my N310. This issue might be related to http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/2018-April/056233.html . Setup: Signal generator outputs a continuous wave at 2.002 GHz (-50dBm) to the RX2 of RF0. With internal LO everyt

Re: [USRP-users] UHD 3.10.2 | X300 - High CPU load even for low samples rate

2017-10-24 Thread Kai-Uwe Storek via USRP-users
Is there something else I can in order to support the investigation of the problem? Is it useful to open a new issue on github? 2017-10-20 19:23 GMT+02:00 Marcus D. Leech via USRP-users : > On 10/20/2017 04:20 AM, Kai-Uwe Storek via USRP-users wrote: >> >> Hey Marcus and Brent, &

Re: [USRP-users] Unexpected sample drift with X300 and X310

2017-10-21 Thread Kai-Uwe Storek via USRP-users
f any; for practically all > daughterboards the TX LO and RX LO synthesizers are the same. The digital > mixing is only used to amount for the difference between the closest element > from the set of discrete frequencies the hardware can generate and what RF > frequency you requested.

[USRP-users] Unexpected sample drift with X300 and X310

2017-10-21 Thread Kai-Uwe Storek via USRP-users
Hey, the attached flowgraph simply generates a sine which is transmitted and received by the same USRP in a loop (30dB attenuation + coax cable between tx and rx port). I used the following USRPs: - B210 - X300 (1G Eth) - X310 (1G Eth) On the Rx side I just added a time sink to view the complex

Re: [USRP-users] UHD 3.10.2 | X300 - High CPU load even for low samples rate

2017-10-20 Thread Kai-Uwe Storek via USRP-users
ph with UHD 3.10.2 causes again 100% CPU load on a single core over the entire time. 2017-10-19 23:05 GMT+02:00 Marcus D. Leech via USRP-users : > On 10/19/2017 10:25 AM, Kai-Uwe Storek via USRP-users wrote: >> >> Hey, >> >> after experiencing some problems (time outs,

[USRP-users] UHD 3.10.2 | X300 - High CPU load even for low samples rate

2017-10-19 Thread Kai-Uwe Storek via USRP-users
Hey, after experiencing some problems (time outs, etc) with the current UHD develop version (master branch) I changed the UHD version to 3.10.2 (maint branch, #122bfae). To do so, I just used the prefix recipe gnuradio-stable via pybombs. Now I'm not able to transmit even low bandwidth signals.

[USRP-users] RFNOC complex_multiplier not found

2017-10-11 Thread Kai-Uwe Storek via USRP-users
Hey, if I use an instantiation of rfnoc-devel/usrp3/lib/rfnoc/cmul.v in my design, the compilation / elaboration process (make noc_block_myblock_tb) fails with: ERROR: [VRFC 10-2063] Module not found while processing module instance [/home/labor/gr_prefixes/rfnoc/src/uhd-fpga/usrp3/lib/rfnoc/cm