Search found 2161 matches

by rtlsdrblog
Tue Jun 18, 2019 1:10 am
Forum: Antennas
Topic: Strangest thing with my antenna!
Replies: 3
Views: 104

Re: Strangest thing with my antenna!

Yes that could be happening. The inner conductor should actually be shielded, so if you can somehow connect the outer shield of the coax cable to your SDR if might work even better as that is more exposed to the RF. Really you want a proper antenna like a Discone or dipole up in your attic though. T...
by rtlsdrblog
Tue Jun 18, 2019 12:34 am
Forum: KerberosSDR
Topic: Update rate not showing
Replies: 23
Views: 1796

Re: Update rate not showing

Well I'm positive I'm getting enough power. Here's another thing. It's recommended to connect the kerberos with the pi before booting up the pi but if I do so, I cannot turn all 4 antennas on because the CPU usage jumps up to 80%+ and the whole system freezes Ah well if you're not connecting the Ke...
by rtlsdrblog
Tue Jun 18, 2019 12:29 am
Forum: KerberosSDR
Topic: Bias-T on KerberosSDR?
Replies: 1
Views: 95

Re: Bias-T on KerberosSDR?

There is no bias tee on the current version of KerberosSDR. We tried to include it on the design, but unfortunately it coupled in a lot of board noise, so the circuit would need to be redesigned to prevent this problem.
by rtlsdrblog
Sun Jun 16, 2019 4:44 am
Forum: RTL-SDR Discussion
Topic: "magic line" what is this
Replies: 2
Views: 178

Re: "magic line" what is this

The magic line is the code you need to paste into the plugins.xml file.

Look for the plugins.xml file in your SDR# folder, right click and open with Notepad. Then paste the magic line at the bottom, save and close. Make sure the plugin .dll is copied to the SDR# folder too.
by rtlsdrblog
Sun Jun 16, 2019 4:42 am
Forum: Other SDR Devices
Topic: MSi.SDR sound crackle pulses and spurs
Replies: 3
Views: 270

Re: MSi.SDR sound crackle pulses and spurs

Yeah a while back we looked into designing something like the MSi.SDR with Mirics chips, but decided against it because the Mirics chips have really bad performance without filtering and an LNA (which is what the SDRplay units have to make them work well). A while ago I asked SDRplay/Mirics (SDRplay...
by rtlsdrblog
Sun Jun 16, 2019 4:34 am
Forum: Off-Topic
Topic: RTL LNA
Replies: 2
Views: 134

Re: RTL LNA

I've only seen one failed ADS-B unit in the last 500 orders so far so it seems a bit unlikely for 2/3 to fail. What exactly is not working? No signal, no light? Can you confirm if the light turns on (remove one screw to look inside). Is your antenna ESD protected if it's outside? And just to confirm...
by rtlsdrblog
Fri Jun 14, 2019 2:07 am
Forum: KerberosSDR
Topic: Update rate not showing
Replies: 23
Views: 1796

Re: Update rate not showing

stasia327 wrote:
Fri Jun 14, 2019 12:22 am
The update rate is not showing.
My power is fine - but whenever I set my parameters and click start processing nothing happens.
Can you run all the tuners at once with rtl_test?

And are you using the image, or did you install it yourself?
by rtlsdrblog
Fri Jun 14, 2019 12:26 am
Forum: Other SDR Devices
Topic: MSi.SDR sound crackle pulses and spurs
Replies: 3
Views: 270

Re: MSi.SDR sound crackle pulses and spurs

I've actually seen that crackle before on the RSP1, so I don't think it's a defective unit. The problem was something to do with the USB port dropping samples. I changed USB ports and used a better USB cable, and then it was gone. Could also be that your PC is too slow? For spurs, yeah the MSI.SDR i...
by rtlsdrblog
Fri Jun 14, 2019 12:17 am
Forum: KerberosSDR
Topic: Update rate not showing
Replies: 23
Views: 1796

Re: Update rate not showing

I'm getting something very similar: [email protected]:/home/pi/kerberossdr# ./run.sh 3 Starting KerberosSDR kill: (4860): No such process [email protected]:/home/pi/kerberossdr# Traceback (most recent call last): File "/home/pi/kerberossdr/_signalProcessing/hydra_signal_processor.py", line 169, in ru...
by rtlsdrblog
Tue Jun 11, 2019 10:24 am
Forum: KerberosSDR
Topic: Problem with direction
Replies: 6
Views: 509

Re: Problem with direction

If you're still around, can you let me know what model phones you tried on?

This is possibly due to the phone being too slow, and the data collection lagging behind a bit. Mapbox must have low priority when updating it's internal GPS heading. I think it can be fixed.