Brand new Kraken connected to a PC running Ubuntu.
The installation script worked wonderfully. Completed error free.
The Kraken is powered with a 3A USB-C supply that shows no voltage dips.
The USB cable to the PC works fine with other devices – harddrives, phones etc.
Only the first three blue LED’s light up on the Kraken when the PC’s USB port wakes up.
Running kraken_test shows only three tuners:
kraken@krakensdr:~$ kraken_test
Found 3 device(s):
0: Realtek, RTL2838UHIDIR, SN: 1000
1: Realtek, RTL2838UHIDIR, SN: 1001
2: Realtek, RTL2838UHIDIR, SN: 1002Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T/2 tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6
Sampling at 2048000 S/s.Info: This tool will continuously read from the device, and report if
samples get lost. If you observe no further output, everything is fine.Reading samples in async mode…
Allocating 15 (non-zero-copy) user-space buffers
lost at least 48 bytes in buffer 0
^C
Signal caught, exiting!User cancel after 27 buffers, exiting…
Samples per million lost (minimum): 6
~/krakensdr_doa/heimdall_daq_fw/Firmware/_logs/rtl_daq.log looks like this:
03:47:35 FATAL rtl_daq.c:501: The serial numbers of the devices are not yet configured, exiting…
Trying to start the service gives me this:
kraken@krakensdr:~/krakensdr_doa$ ./kraken_doa_start.sh
Shut down DAQ chain …
[sudo] password for kraken:
Config file check bypassed [ WARNING ]
kernel.sched_rt_runtime_us = -1
Desig FIR filter with the following parameters:
Decimation ratio: 1
Bandwidth: 1.00
Tap size: 1
Window function: hann
FIR filter ready
Transfer funcfion is exported to : logs/Decimator_filter_transfer.html
Coefficients are exported to: data_control/fir_coeffs.txt
Starting DAQ Subsystem
Output data interface: Shared memory
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Remote Control is DISABLED
To enable Remote Control please install miniserve and jq.
Then change ‘en_remote_control’ setting in _share/settings.json file to ‘true’.
Finally, apply settings by restarting the software.Starting KrakenSDR Direction Finder
Web Interface Running at 0.0.0.0:8080
Data Out Server Running at 0.0.0.0:8081
TAK Server Installed
I have a friend with a working setup, and will bring my unit to him this weekend to try it with known working power & cables, but I did try several good cables and power bricks already so my hopes are not high.
Anything else I can try? Ideas welcome!
// Anders