Guralp Systems ART - Manual (Page 17)

User guide
spectra of two or more records (0, 2, 5, 10 or 20%);
6. line styles used for figures comparing the derived strong-
motion parameters of two or more records (monochrome or
colour);
7. whether absolute time is reported on the graphs showing
acceleration, velocity and displacement time-histories (yes
or no);
8. whether to use logarithmic or linear x-axes for graphs
(logarithmic or linear);
9. whether to use logarithmic or linear y-axes for graphs
(logarithmic or linear);
10. whether to use period or frequency for graphs and
parameter display (period or frequency);
11. which variable to plot on maps displaying time-histories
(acceleration, velocity or displacement);
12. which component to plot on maps displaying time-histories
(Z, N or E);
13. whether to display range rings on maps displaying time-
histories (yes or no);
14. whether to display metadata in title of figures (yes or no);
15. whether to display grid lines on figures (yes or no):
16. what COM port to use for dialling stations (COM1 is the only
option currently supported);
17. what baud rate to use for dialling stations (2400, 4800,
9600, 19200, 38400, 57600 or 115200);
18. length of pre-event time to use for calculating noise
estimate (‘Length of pre-event time’) in seconds (if this is
set to zero then a noise spectrum is not calculated). This can
be selected interactively by clicking on the ‘Select’ button,
see below;
19. corner frequency (‘fl’) in Hz of the bi-directional filter used
for high pass filtering time-histories (usually this is about
0.05Hz for records from CMG-5Ts and it cannot be less than
0Hz). This can be selected interactively by clicking on the
‘Select’ button, see below;
20. order (‘Order’) of the Butterworth filter used for high pass
filtering time-histories (the default value for the order is 2, a
higher order filter has a steeper transition band but requires
more zero padding and the filtering takes a longer time).
This can be selected interactively by clicking on the ‘Select’
button, see below;
21. frequency where cosine taper of low pass filter starts (‘fh1’)
in Hz (usually this should be about 50Hz for records from
CMG-5s);
22. frequency where cosine taper of low pass filter ends (‘fh2’)
in Hz (usually this should be about 100Hz for records from
CMG-5s);
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