RTL_daq.log error

1

I obtained more running logs by modifying the permissions of the logger file.
“.nano ~/krakensdr_doa/heimdall_daq_fw/Firmware/daq_chain_config.inilog_level = 2krakensdr_doa/heimdall_daq_fw/Firmware/logs”I found this error in my rtl_daq.log
rtlsdr_read_reg failed with -7
rtlsdr_write_reg failed with -7
rtlsdr_read_reg failed with -7
rtlsdr_write_reg failed with -7
rtlsdr_read_reg failed with -7
rtlsdr_write_reg failed with -7
No supported tuner found
rtlsdr_demod_write_reg failed with -7
rtlsdr_demod_read_reg failed with -7
rtlsdr_demod_write_reg failed with -7
rtlsdr_demod_read_reg failed with -7
rtlsdr_demod_write_reg failed with -7
rtlsdr_demod_read_reg failed with -7
rtlsdr_demod_write_reg failed with -7
rtlsdr_demod_read_reg failed with -7
Enabled direct sampling mode, input 1

2

rtlsdr_read_reg failed with -7
No supported tuner found

This means that the tuner didn’t connect. The most common issue is simply the power supply not giving enough power.

The second problem could be a bad tuner, but that is quite rare.