Search found 128 matches

by bglod
Thu Aug 16, 2018 1:48 pm
Forum: Troubleshooting
Topic: Cannot see waterfall
Replies: 4
Views: 90

Re: Cannot see waterfall

Couple things I noticed. First is you're on a USB 2 port, so your sample rate needs to be limited to less than about 8 MSPS. The second is, double check the settings in the gqrx device configuration window, it looks like there might be some issues there. Disable decimation, set the sample rate to 5 ...
by bglod
Tue Aug 14, 2018 6:03 pm
Forum: Troubleshooting
Topic: bladeRF x40 appears dead
Replies: 1
Views: 86

Re: bladeRF x40 appears dead

And this is a sudden problem with all of your bladeRFs? This sounds very strange. Can you try another machine, or perhaps use the GNU Radio Live image? Do the devices show up in lsusb? Can bladeRF-cli -p detect them? Take a look at the schematic and probe all the voltage rails when it's plugged in. ...
by bglod
Tue Aug 14, 2018 5:53 pm
Forum: Troubleshooting
Topic: Cannot see waterfall
Replies: 4
Views: 90

Re: Cannot see waterfall

Is the FPGA loaded? Does gqrx print any errors? Does it show up in dmesg? Can you give us a version printout using the bladeRF-cli -e "version" ?
by bglod
Tue Aug 14, 2018 5:43 pm
Forum: Troubleshooting
Topic: External power supply
Replies: 3
Views: 384

Re: External power supply

It sounds like you didn't move the jumper position to change the power source.

https://github.com/Nuand/bladeRF/wiki/b ... figuration

I admit it's not the best description of the correct jumper settings. I made a note to update the description and add pictures.
by bglod
Thu Aug 02, 2018 9:43 pm
Forum: Troubleshooting
Topic: BladeRFx40 get freezing after some days
Replies: 3
Views: 1481

Re: BladeRFx40 get freezing after some days

Some other knobs to play with are the buffer size, number of buffers, and the number of active transfers. These values may need to be increased or decreased. The log output verbosity may be changed in MATLAB as well as in the CLI. For MATLAB, use the log_level() function . For the CLI, use the "-v <...
by bglod
Mon Jul 30, 2018 12:46 pm
Forum: Tutorials and Examples
Topic: BladeRF IMSI Catcher
Replies: 1
Views: 372

Re: BladeRF IMSI Catcher

Locking this topic because it promotes an unethical use of our SDR.
by bglod
Tue Jul 17, 2018 11:02 am
Forum: Troubleshooting
Topic: External power supply
Replies: 3
Views: 384

Re: External power supply

Just in case anyone else has trouble and comes across this post, the relevant information is in our bladeRF Accessories Wiki article: https://github.com/Nuand/bladeRF/wiki/bladeRF-Accessories#external-dc-power Unfortunately, the bladeRF has no way of knowing whether it is being powered over the USB ...
by bglod
Tue Jul 10, 2018 9:51 am
Forum: General
Topic: How to extract a header file
Replies: 3
Views: 547

Re: How to extract a header file

Oh, yeah it's not in a header file. The timestamp is a run-time value that used for synchronous TX or RX. It can be used to transmit or receive at a specific time, or to simply RX/TX and report back the current time of the data buffer. Some more information about this is in our API: http://www.nuand...
by bglod
Tue Jul 10, 2018 9:39 am
Forum: Hardware and RF
Topic: Terrible sensitivity?
Replies: 3
Views: 502

Re: Terrible sensitivity?

The NOAA satellites are at 137 MHz, so I assume you are using the XB-200. There are some additional losses that occur on that board in addition to the bladeRF itself, so you may need an LNA. What is your filterbank set to on the XB-200? The custom path is probably where you want to be, and either us...
by bglod
Sun Jul 08, 2018 12:20 pm
Forum: Troubleshooting
Topic: [SOLVED] Loading to the FPGA -> operation timed out
Replies: 6
Views: 932

Re: [SOLVED] Loading to the FPGA -> operation timed out

My best guess is shipping damage based on the fact that we test these boards for proper operation before they ship. If there's an issue loading the FPGA, the tests would (should!) fail. I am glad that the fix is holding up. Please do let us know if the issue returns as it could be indicative of some...