Search found 98 matches

by bglod
Wed Mar 14, 2018 1:20 pm
Forum: Troubleshooting
Topic: Issues - Installation in MacOS
Replies: 1
Views: 198

Re: Issues - Installation in MacOS

Where are you stuck? Is there an error message?
by bglod
Wed Mar 14, 2018 1:17 pm
Forum: Troubleshooting
Topic: bladeRFx40 with yateBTS not working
Replies: 2
Views: 104

Re: bladeRFx40 with yateBTS not working

First, thank you for providing such detailed information! I'm far from an expert on YateBTS, so I don't know how helpful this will be. I noticed you are receiving a lot of "TX underrun" errors, TX timestamp issues, RX timestamp jumps, and excessive TOA errors. The TX underruns and jumpy timestamps c...
by bglod
Fri Mar 09, 2018 10:22 am
Forum: Troubleshooting
Topic: Problem building yatebts. Anyone has a clue?
Replies: 10
Views: 1453

Re: Problem building yatebts. Anyone has a clue?

First, download the .patch file attached to issue #416 . Review it to make sure there's nothing nefarious in there (it's fine as of this writing). If you have a checked out copy of yatebts SVN trunk with no local changes, you should be able to have SVN apply the patch for you. Assuming your current ...
by bglod
Fri Mar 02, 2018 11:32 am
Forum: Tutorials and Examples
Topic: My BladeRfx40 is good?
Replies: 5
Views: 717

Re: My BladeRfx40 is good?

Because the RX seems to work, let's try running the bladeRF in external loopback. That is, take one of the SMA cables provided with the bladeRF and connect the RX port to the TX port. Using the bladeRF-cli, make sure the FPGA is loaded, and then set your RX and TX gains to something sensible, along ...
by bglod
Thu Mar 01, 2018 11:03 am
Forum: General
Topic: Pulsed Radar Issue
Replies: 1
Views: 214

Re: Pulsed Radar Issue

I'm not sure if it's related to your problem, but MATLAB is single-threaded, so the function calls are blocking. What are your settings for the number and size of the buffers being used, as well as the number of simultaneous transfers? How much data are you trying to push through? If you're not send...
by bglod
Wed Feb 28, 2018 5:02 pm
Forum: Hardware and RF
Topic: SMB Clock output in presence of XB-200 nay?/yea but..? how?
Replies: 6
Views: 1975

Re: SMB Clock output in presence of XB-200 nay?/yea but..? how?

Basically, there are three ways to get a clock into or out of a bladeRF : SMB port, J62 (input, output) Expansion GPIO, U74 (input, output) Mini GPIO, J71 (input, output) The SMB port is the best option if you care about phase relationships because this clock signal comes directly out of the Si5338Q...
by bglod
Tue Feb 27, 2018 12:32 pm
Forum: General
Topic: SDR through SHF band
Replies: 1
Views: 178

Re: SDR through SHF band

You're going to have to be more specific than that. SHF covers quite a large range of frequencies.
by bglod
Wed Feb 14, 2018 10:52 am
Forum: Software development
Topic: Is possible to measure swr with gnuradio?
Replies: 1
Views: 824

Re: Is possible to measure swr with gnuradio?

Maybe? I wouldn't expect great performance or accuracy though, and you may have to build/buy additional components. For one, the bladeRF is not calibrated, so for the best accuracy you'd need test equipment to build a calibration table. You might be able to ignore this, but keep in mind that it coul...
by bglod
Fri Feb 09, 2018 11:51 am
Forum: Hardware and RF
Topic: GSM and amplifiers
Replies: 3
Views: 1626

Re: GSM and amplifiers

Excellent! Was it saturation that was causing the problem, or was it something else? (In case someone with a similar issue comes across this post).