Search found 17 matches

by n_qrtu
Sat Dec 03, 2016 9:44 am
Forum: Troubleshooting
Topic: external clock reference
Replies: 1
Views: 8755

Re: external clock reference

I think I am going for these components, I guess they should do the job:

http://www.wenzel.com/model/streamline/
http://www.wenzel.com/model/power-splitter-lnps/

However, I need a power supply of +15 or +12 VDC, so it cannot be powered on USB from a laptop.

Nicolae
by n_qrtu
Fri Dec 02, 2016 12:02 pm
Forum: Troubleshooting
Topic: external clock reference
Replies: 1
Views: 8755

external clock reference

Hello, I am planning to use an external clock to drive the CLK entry of the bladeRF. (This is in order to synchronize two boards, one is the Tx, the other one the Rx: we have implemented clock synchronization in software, but for the students in our class we would like to get them started without th...
by n_qrtu
Fri Dec 02, 2016 10:21 am
Forum: Troubleshooting
Topic: calibration fails in Matlab
Replies: 0
Views: 8616

calibration fails in Matlab

Hello, I am using the burst mode transmission in Matlab (under Windows) between two bladeRF boards. I am trying to calibrate from Matlab using the commands: b.calibrate('ALL'); b.rx.corrections.auto_dc(); But when doing this, I see that the Rx systematically stops and the parameter act_count is alwa...
by n_qrtu
Wed Oct 05, 2016 6:00 am
Forum: Troubleshooting
Topic: DC offset correction
Replies: 13
Views: 45744

Re: DC offset correction

Dear Jon, As promised (a long time ago :-) ), here is the setup for our GPS signal acquisition. bladeRF_GPS_signal_acquisition_setup_small.JPG We are using a BiasTee to provide current to the 2 LNAs (one external (cylindrical one) and the another one built within the antenna). (bladeRF cannot provid...
by n_qrtu
Wed Aug 24, 2016 4:56 am
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

Re: VirtualBox: No bladeRF device(s) available.

Hi, In short, my VirtualBox problem was solved by adding (on the native OS system) my username to the group vboxusers. This is usually done in Settings --> Users and Groups. To connect the board, from the VM menu select Devices --> USB select bladeRF. This will connect the bladeRF to the VM. To chec...
by n_qrtu
Tue Aug 23, 2016 10:08 am
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

Re: VirtualBox: No bladeRF device(s) available.

Hi, Thank you for your answer. For libtecla, I thought that the error came from the libusb warning, that is why I posted it. The issues I have encountered came when installing on Fedora or CentOS, not on OSX. On OSX I am running only the VirtualBox with CentOS. Anyway, things are working for the mom...
by n_qrtu
Fri Jul 22, 2016 5:58 am
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

Re: VirtualBox: No bladeRF device(s) available.

Hi, Thanks for your answer. libtecla: The issue comes when installing on Centos 7 or Fedora 23. (on Mac I am running only the VM with Centos 7). Even after doing: wget http://www.astro.caltech.edu/~mcs/tecla/libtecla.tar.gz tar zxvf libtecla.tar.gz cd libtecla/ ./configure make && sudo make install ...
by n_qrtu
Thu Jul 21, 2016 12:51 pm
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

Re: VirtualBox: No bladeRF device(s) available.

Hi, Thanks a lot for the answer. I have managed to solve the problem. It was not a VM problem (I am using virtualBox), but a problem related to the installation of bladeRF. (It was not the libbladeRF version, I had the latest version) Here below are the details: I noticed that there was some error w...
by n_qrtu
Thu Jul 21, 2016 3:04 am
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

Re: VirtualBox: No bladeRF device(s) available.

Hi, Thanks a lot for you quick reply. We are trying to make it work with VM since we plan to use the board for a class, so we would like to give the students a VM and in this way they all will have the same environment. I thought VM would be a good idea, but now we run already into trouble, so not s...
by n_qrtu
Wed Jul 20, 2016 2:58 pm
Forum: Troubleshooting
Topic: VirtualBox: No bladeRF device(s) available.
Replies: 10
Views: 32832

VirtualBox: No bladeRF device(s) available.

Hello, I am using VirtualBox on a MAC (El Capitan version 10.11.5), but I cannot get the board connected. This is what I get: ============= [admin@SDR ~]$ bladeRF-cli -i -v verbose [VERBOSE @ libusb.c:541] Using libusb version: 1.0.15.10646 [DEBUG @ libusb.c:210] Failed to get configuration descript...