Архив за 13.10.2019

KerberosSDR • Re: KerberosSDR Developments in 2020

rtlsdrblog wrote:
Thu Oct 10, 2019 4:31 am
For networked operation the stop-gap idea was to get this program compatible with the KerberosSDR http://www.musther.net/RDFMapper/.

But if you're happy to open source and throw your code up on GitHub i'll help test it too.

Will be definitely keen to hear about your switch experiments too. Keep in contact either here on the forums or admin@rtl-sdr.com.
Right now, the networking code is in bits and pieces for testing of various concepts. I'll open up the repo later this year.

I've very pleased with the results from the antenna switch! I've set up the software to run an auto-calibration routine upon changing frequency. Nothing got mangled in the VHF range. I'm not sure how it will translate to the upper UHF range that people seem to use in the demo videos. There's nothing I've cared to DF in the 800MHz range.
Here are some photos: https://photos.app.goo.gl/K1PndvpgotPKdeBU9

Statistics: Posted by ckoval7 — Sun Oct 13, 2019 11:54 pm

Comment on A NanoVNA 2.0 is in the Works: Same Price, Frequency Range up to 3.5 GHz, Higher Dynamic Range by John Cunliffe

I would be thrilled if someone would come up with software that would use a computer monitor to simple display everything the nano displays without all the extra remote abilities. So, just like…connect the nano to the computer, execute the software and the monitor becomes an extension of the units display… even a little lag would be acceptable. Since I am not a software writer I guess it will stay a dream. And why would one want it? Because our old eyes are challenged with small screens even the one in the currently used software that only can display one function at a time per window and thus are still small when multiple functions are applied.

Comment on A NanoVNA 2.0 is in the Works: Same Price, Frequency Range up to 3.5 GHz, Higher Dynamic Range by PG1T

I’m wondering how hard it would be to modify the firmware to use the device with another (larger) display.At some point I might want to use a bigger display – they are not that much more expensive for me – but the ones I find on ebay do not always have the same display controller. Is it simply a matter of including a different library?

Please note, I ám not complaining about the current display, It’s actually impressive.

SDR# Community Plug-In with Trojan?

I'm running Windows 10 (10.0.18362) and installed the latest SDR# (

I've heard a lot about the Community Plug-Ins add-on so I thought I would check it out. I downloaded it from the airspy site, though they do not provide an MD5 sum to ensure it is safe.

Windows quarantined it, stating the following:

Threat detected: Trojan:Win32/Sprisky.V!cl

Alert level: Severe

Has anyone else encountered this? Is the source code for the plug-in set open source to be reviewed?

submitted by /u/CodeTheInternet
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KerberosSDR • Re: hydra_main_window.py is empty

Yeah, I start setup_init.sh and It finished without a problem... Is It possible that It have a wrong setup_init.sh configuration?
Thank you ;)

Statistics: Posted by nikuss — Sun Oct 13, 2019 8:46 pm

KerberosSDR • Schematic / recommendations for external power source

I'm looking to power the Kerberossdr with an external 5v power source (other than USB cable) - possibly drilling a standard barrel type connector to source the power. It would be VERY helpful to have a general schematic to located these connection opportunities.

Anyone else tried this? Any recommendations?

Statistics: Posted by mkmer — Sun Oct 13, 2019 8:07 pm

KerberosSDR • Re: hydra_main_window.py is empty

After installing KerberosSDR did you first run setup_init.sh ? It will chmod and assign execution to selected files.

Statistics: Posted by myke — Sun Oct 13, 2019 6:51 pm

Does anyone know what could cause intermittent signals across the band?

Here's a couple of samples: https://i.imgur.com/ovIulag.png https://i.imgur.com/gDLc48U.png

And here it is working fine a couple of minutes later: https://i.imgur.com/F3RNAW8.png

My setup is like this:

The dish antenna is wired to an LNA, wired to a Sawbird (saw filter + 2x lna), wired to the SDR (a nooelec smartee xtr), plugged into an extension USB cable (10m, with 2 repeaters), plugged into a rPi, plugged to an ethernet switch, then finally to the router (through ethernet again).

The first LNA is fed through a DC converter plugged to the mains, the sawbird is powered with the SDR (through bias-tee)

When I remove the first LNA, the intermittent signals stop (but of course, the signals are weaker) I've tried 2 different types, the new LaNA from nooelec and the LNA4ALL

When I put it back in, it might be fine for hours at a time, or it might go dead almost instantly, but however long it takes, I can never keep a stable signal.

I can vouch that the rPi, the switch and the router all work fine.

Am I overloading my SDR dongle? When it does work, the SNR is fantastic

submitted by /u/They_recommended_SRD
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KerberosSDR • hydra_main_window.py is empty

Hi everyone.

I tried start ./run.sh in my ubuntu 18.04.3 LTS, the software is running ok, but the window of kerberos setup is empty, i need to calibrate in my smartphone because I see anything in kerberos window...

Someone could help me? I dont know what is wrong.

thank you
Captura de pantalla de 2019-10-13 16-25-30.png

Statistics: Posted by nikuss — Sun Oct 13, 2019 2:26 pm

Bob к «Обновлен FilePlayer и FrequencyManager»

The latest versions of Sharp have broken the frequency control in file player.

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