Search found 90 matches

by ckoval7
Thu Oct 31, 2019 1:55 pm
Forum: KerberosSDR
Topic: server IP address for Android App
Replies: 2
Views: 1784

Re: server IP address for Android App

I use terminal emulator and just type "ip neigh"
by ckoval7
Mon Oct 28, 2019 10:39 am
Forum: KerberosSDR
Topic: Direction finding for intermittent signal
Replies: 19
Views: 11665

Re: Direction finding for intermittent signal

I've had plenty of success DFing signals that stay active for at least 3 seconds. For example, POCSAG. If a signal is any shorter than that, you're likely to miss it. I can't find much information on DMR beacons, other than someone on a forum post saying they're configured to be active active for 43...
by ckoval7
Wed Oct 23, 2019 11:59 pm
Forum: KerberosSDR
Topic: Raspberry Pi 4?
Replies: 4
Views: 2750

Re: Raspberry Pi 4?

There's no turn-key Pi4 image, but the Kerberos software itself will run just fine. Follow the README on github, and uncomment the block of code in run.sh that pulls the IP from wlan0.
by ckoval7
Mon Oct 14, 2019 4:12 pm
Forum: KerberosSDR
Topic: Schematic / recommendations for external power source
Replies: 7
Views: 3375

Re: Schematic / recommendations for external power source

I was curious what I could do with the 40 pin connector as access to the 5vdc power connection , I have read very little about anyone using that installed interface... So If anyone has ideas.. It would be appreciated Supposedly it's for interfacing directly with the RPi, but: You still need to powe...
by ckoval7
Mon Oct 14, 2019 11:55 am
Forum: KerberosSDR
Topic: hydra_main_window.py is empty
Replies: 7
Views: 3396

Re: hydra_main_window.py is empty

What is the content of log_python? Close the main window, then do: cat log_python That file will be empty until the main window is closed. Optionally, you can remove &>log_python from the run.sh file. That will print any python output to the terminal. Another note, you'll want to change "IPADDR" to ...
by ckoval7
Mon Oct 14, 2019 1:04 am
Forum: KerberosSDR
Topic: hydra_main_window.py is empty
Replies: 7
Views: 3396

Re: hydra_main_window.py is empty

The only thing I could think of is maybe you're missing some QT libraries. QT is a huge set of individual packages, and it's not unusual to miss one or two when trying to install them all. Also, make sure all your python3 stuff is up to date.
by ckoval7
Sun Oct 13, 2019 11:54 pm
Forum: KerberosSDR
Topic: KerberosSDR Developments in 2020
Replies: 43
Views: 32385

Re: KerberosSDR Developments in 2020

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 ...
by ckoval7
Wed Oct 09, 2019 7:35 pm
Forum: KerberosSDR
Topic: KerberosSDR Developments in 2020
Replies: 43
Views: 32385

Re: KerberosSDR Developments in 2020

[*] Networked DFing - With several networked KerberosSDR units spread out around a city it will be possible to instantly direction find any signal. I'm actively working on my own implementation of this. I would love to work together if you're interested. [*] Hardware: Switches and an improved calibr...
by ckoval7
Fri Oct 04, 2019 8:38 pm
Forum: KerberosSDR
Topic: CSV File content
Replies: 1
Views: 1568

Re: CSV File content

Time (epoch, milliseconds), Latitude, Longitude, GPS Heading, Compass Heading, DOA, Confidence, Power
by ckoval7
Fri Sep 27, 2019 8:57 pm
Forum: KerberosSDR
Topic: direction finding of short pulses
Replies: 6
Views: 3351

Re: direction finding of short pulses

On most computers the system samples about every half second. 20mS pulses are too short for the system to pick up. With some optimizations to the code and a really fast computer, it can sample faster. Apparently a problem with sampling too fast is that it will lose sync, then the bearings become gar...