Search found 14 matches

by k5cg
Sun Dec 15, 2019 8:00 pm
Forum: KerberosSDR
Topic: Raspberry Pi 4 Compatible Image Released
Replies: 19
Views: 1402

Re: Raspberry Pi 4 Compatible Image Released

The v1.5 image works great on the Pi 4. The Hydra compass updates twice per second, double the speed of v1.4 on the Pi 3B+. I have an in-vehicle WiFi hotspot so I updated wpa_supplicant.conf to join that SSID and it works fine. I also cloned the compass.html and dependent files into compassl.html fo...
by k5cg
Thu Nov 14, 2019 3:58 am
Forum: KerberosSDR
Topic: KerberosSDR Developments in 2020
Replies: 12
Views: 2130

Re: KerberosSDR Developments in 2020

I downloaded the V1.5 release today and love it. - Lockable gain controls are great. - Antenna spacing entry instead of radius/lambda is great - Compass is no longer mirror image! I see there is an experimental 90 degree option (not functional) and I wonder if this was related to my earlier request ...
by k5cg
Wed Sep 25, 2019 1:30 am
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

Oh!! Another suggestion! How about a broken (Dashed) DOA blue line during an absence of receive signal? I'd like to have filter inputs for power and confidence on the compass page. If the minimums are not met then the arrow is simply hidden. As the confidence increases over the filter threshold the...
by k5cg
Wed Sep 25, 2019 1:14 am
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

In the DF process, as you get closer to the source it would be beneficial to insert attenuation into the Antenna system to counter increased multipath. (of course those changes would require stopping and re-calibration with any antenna changes.) I've thought some about this too, and I'm building an...
by k5cg
Wed Sep 04, 2019 9:03 pm
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

Another idea... For the UCA antenna arrangement (maybe ULA also), rather than have to set the lambda in the DOA Estimation page, how about just an entry for the antenna element spacing. Then have the software figure out the radius. If you change frequencies and don't adjust the antenna spacing then ...
by k5cg
Wed Sep 04, 2019 8:58 pm
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

Perhaps the "manual mode bearing" setting will help you when using compass or GPS as well. I cannot try myself because I have no car of my own. I always work from fixed points. If it does not work, record a log file as usual. Then try to change "bearing mode" to manual when plotting the log, and se...
by k5cg
Sun Sep 01, 2019 3:45 pm
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

Excellent! Thanks
by k5cg
Sun Sep 01, 2019 2:02 am
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Re: Feature requests / development ideas

More ideas... yes, sorry. After using for a while... so. 1. A way to listen to audio from one of the RTLs (select one or just #1 only) by either a jack on the side of the KerberosSDR housing or from the Pi Audio jack or maybe Bluetooth (to an earpiece or car). 2. A add a squelch control in software ...
by k5cg
Fri Aug 23, 2019 4:19 am
Forum: KerberosSDR
Topic: Feature requests / development ideas
Replies: 24
Views: 3913

Feature requests / development ideas

1. The radius of 4 antennas on the roof in the North/East/West/South arrangement of my car barely fits across the roof (specifically the East to West dimension). Would it be possible to have an option that would allow the array to be rotated 45 degrees so the antennas can be placed in a NW, NE SE, S...
by k5cg
Wed Aug 21, 2019 10:41 pm
Forum: KerberosSDR
Topic: Freezing when Noise Source enabled (v1.4)
Replies: 3
Views: 913

Re: Freezing when Noise Source enabled (v1.4)

It works! I switched to a pair of Samsung mobile phone AC adapters, the kind marked with "Adaptive Charging" - even though that feature is unused in this application. I chose these because they have 2 Amps output but more importantly provide 5.2 VDC. The Pi consumes about 600ma and the KSDR about 1A...