sidc.conf

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;  General Options                                                            ;
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; Specify a file into which sidc will write messages.  This file is written
; using open/append/close, so that you can apply a straightforward log rotate
; policy
logfile /data/projects/sid/sidc/sidc.log

; Specify a directory to contain output data files.  Use '.' for the
; current directory.
datadir /data/projects/sid/sidc/data/

; Enable real time scheduling of sidc.  Recommended so that soundcard buffers
; are read promptly, which means minimum latency before each fft buffer is
; timestamped. You have to be running as root for this to work.
sched low     ; low (= ordinary process) or high (= soft real time scheduling)

; Specify the email address of whoever is to get any bad news.
; mail someone@someplace

; The loss-of-signal warning threshold and time delay.  If the input
; signal peak level (0-1.0) falls below the given threshold for more than
; the delay time, a warning will be issued.  The threshold applies to both
; left and right in stereo mode, on the assumption that you've set the gains
; so that the signal levels are about the same anyway.
;los 0.1 10

; Specify a file into which spectrum data will regularly be written.
; This file is independent of the data record policy specified below.
;
; This file is overwritten with a fresh spectrum at intervals specified by
; the second parameter in seconds.
;
; This spectrum file contains three space separated columns:
; bin centre frequency (Hz), and the average power in the bin for the left
; and right channels.  In mono mode there are just two columns
utility_spectrum /data/projects/sid/sidc/data/sidspec 100

; Initialisation delay.  Some combinations of PC and soundcard might need a
; short delay between initialising the soundcard and starting to read data.
; card_delay 1   ; Seconds 

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;  Soundcard Settings                                                         ;
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;
; The input device
device pulse     ; For ALSA 
;device /dev/dsp   ;For OSS Linux
;device /dev/audio ; For OSS Solaris

; Specify the mode of operation - stereo or mono.
; mode stereo
mode stereo

; The requested sample rate.  The software will use the closest
; setting available from the soundcard.
rate 192000

; Sample width, 8, 16, 24, or 32 bits.   
bits 16

; Number of frequency bins to use.  This determines the frequency resolution,
;   resolution = rate / (2 * bins)
; For best efficiency, specify a power of 2, but this is not essential

bins 8192

; Number of samples or sample pairs to read from the soundcard per read call
nread 1024

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;  Data File Settings                                                         ;
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;
; Output policy.  This keyword selects which of the available data output
; policies to use. The available options are:-
;
; SPECTRUM:  Output a whole spectrum.  Your post-processing can decide later
;            just which blocks of spectrum to monitor.
; 
; BANDS_MULTI:  Monitor specific frequency bands, output all monitors to
;               a single multi-column data file,
;
; BANDS_EACH:  Monitor specific frequency bands, output each monitor to its
;              own data file.

; output_policy SPECTRUM
output_policy BANDS_MULTI

; Output interval.  Approximate number of seconds between output records. 
; The program will integrate whole FT frames until this interval is reached
; and will then output a data record.  Set this value to zero to obtain an
; output record for every FT frame.

output_interval 2

; Output data file names.  Compose a filename format using the following %
; codes. All other characters are taken literally.  Must not contain spaces.
;
; %y 2-digit year    %H 2-digit hour
; %m 2-digit month   %M 2-digit mins 
; %d 2-digit day     %S 2-digit secs
;                                     
; %E seconds into current day 0..86399
; %e as %E but with millisecond resolution 0.000 to 86399.999
; %% a literal %
;   
; %B band ident - only valid with output policy BANDS_EACH
; %U unix epoch time integer - seconds since midnight Jan 1st 1970
; %u as %U but with millisecond resolution
; %s seconds with milliseconds resolution 00.000 to 59.999

output_files %y%m%d.dat

; Specify the format of the timestamp to use in the datafiles.  This is the
; first field of each data record.  % codes are substituted as above
timestamp %u

; Data file header.  Set to yes if each data file is to have a header record
output_header yes

; Format and precision of relative power levels in output records. Specify
; using a 'printf' style %e or %f floating point format specifier.
field_format %.2e

; Relative power values can be logged as either linear or db
field_scale linear

; Adjustment (dB) to be applied to all output values.  This may be used
; to reduce the size of output files by eliminating leading minus signs
; when using logarithmic mode
offset_db  0

; Whether to output a total power reading
output_power yes

; Whether to output peak signal reading
output_peak yes

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; Settings for output policy SPECTRUM                                         ;
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;
;  These options are ignored when not using output policy SPECTRUM

; Specify spectrum range to output - Hertz. 
spectrum_range 10000 96000

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; Settings for output policy BANDS_EACH and BANDS_MULTI                       ;
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;
;  These options are ignored when using output policy SPECTRUM

; Specify the name, frequency range, and input side of each band to
; monitor
;
; In BANDS_EACH policy, the 'ident' field is embedded in the data file name
; In BANDS_MULTI policy, the 'ident' field goes into the heading record
;
; If you're running in mono, specify the left side
;
; See http://sidstation.lionelloudet.homedns.org/stations-list-en.xhtml
; for a well-maintained list of suitable VLF transmitters
;
;  ident  from    to  side

band FTA 20800 21040  left  ; 20.9 France
band GQD 22000 22250  left  ; 22.1 England
band HWU 22510 22750  left  ; 22.6 France
band DHO 23330 23550  left  ; 23.4 Germany
band NAA 23925 24150  left  ; 24.0 Cutler, ME

band NRK 37400 37680  left  ; 37.5 Iceland
band NSY 45830 46090  left  ; 45.9 Italy
band MSF 60050 60100  left  ; 60.0 England

band HBG 74950 75050  left  ; 75.0 Switzerland
band DCF 77450 77550  left  ; 77.5 Germany