Guralp-systems Scream Manuale Utente Scaricare il pdf (Pagina 83)

User guide

Usually, the values of the STA and LTA periods, and of the Ratio, will

be the same for all ticked channels. For convenience, Scream! will

automatically fill in other values to match ones you enter. If you want

to use different values for some channels, you should clear the

Common values check-box before altering them.

Once you have enabled the STA/LTA triggering method on a particular

channel, you can use the Control window to change the values of the

STA and LTA periods, together with the Ratio, without restarting the

digitiser (see Chapter 8 on page 89).

January 2014 83

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Scream! 4.5 1
Table of Contents 2
1 Introduction 6
1.1.1 Diagnostic features 7
1.1.2 Digitiser configuration 7
1.1.3 Networking 7
1.1.4 Recording and replay 7
1.2 Scream! as a data viewer 8
2.1 Installation on Windows 9
3 The main window 11
3.2 The stream buffer 14
3.3 The source tree 14
3.3.1 Icons 15
3.4 The stream list 16
3.4.1 Sorting options 18
3.5 The status bar 19
3.6 Viewing streams 19
3.7 Connecting to instruments 21
3.8 Calibration data 21
Serial-Nos=serial-number 22
VPC=sensitivity 22
CALVPC=sensitivity 22
CALRES=resistance 23
TYPE=model-number 23
RESPONSE=response-type unit 23
GRAVITY=acceleration 24
3.8.1 Examples 25
3.9 Other features 26
4 Waveview windows 27
4.1 Window functions 28
4.1.2 Making measurements 29
4.1.3 Printing 30
4.1.4 Filtering 30
4.1.5 Paused mode 31
4.1.6 Other icons 34
4.1.7 Context menu 35
4.2 Stream functions 36
4.2.1 Identifying streams 37
4.2.3 Scaling streams 38
4.2.5 Spectrogram 39
4.3 The Filter Design window 40
4.3.1 Filter parameters 41
4.3.2 Viewing spectra 44
4.3.3 Display options 46
4.3.4 Pre-sets 47
4.4 Display options 48
4.4.2 Stream mapping 49
5 Networking 53
5.1.1 TCP clients 55
5.1.2 Multicast clients 55
5.2 My Server 56
5.3 Server Buffer 59
5.4 Gap recovery 59
6 Supplementary windows 63
6.1.2 Macro commands 65
6.1.3 Direct connections 65
6.2 Digitiser status streams 66
6.2.1 GPS 67
6.3 The summary window 70
6.3.1 Timing 71
6.3.2 Mass position 71
6.3.3 Age 72
6.3.4 Errors 72
6.3.5 Triggers 72
6.4 The ViewInfo window 74
7 Configuring digitisers 76
7.1 System ID 77
7.2 Output control 78
7.3 Triggering 80
7.3.1 STA/LTA 81
7.3.2 Level 85
7.3.3 External triggering 85
7.4 Mux Channels 86
7.5 Ports 87
8 Controlling digitisers 89
8.2 Triggering 90
8.3 Calibration 91
8.4 Mass Control 92
8.5 Data flow 93
8.5.1 DIRECT 94
8.5.2 FILING 95
8.5.3 DUPLICATE 96
8.5.4 DUAL 97
8.5.6 ADAPTIVE 98
8.6 Buffer Memory Usage 99
8.6.2 WRITE-ONCE 100
9 Recording and playback 101
9.2 Files 103
9.2.1 UFF file format 106
9.2.2 MiniSEED file format 107
[ExportInfo] 108
SYSTID=net:NN loc:LL 108
9.2.3 SAC file format 109
9.2.4 SUDS file format 110
9.2.5 GSE file format 111
9.2.6 CSS file format 111
9.3 Playback 112
9.3.2 Reading hard disks 115
9.3.3 SCSI tapes 116
9.4 Automatic playback 117
10 Printing options 119
10.1.2 Automatic screen-shots 121
10.2 Continuous printout 122
10.2.1 Port capturing 125
11 Logging and notification 126
11.2 E-mail notification 128
12 Extending Scream! 130
12.2 Running extensions 131
13 Keyboard short-cuts 133
13.2 Waveview windows 134
13.3 Details window 135
136 Issue K 136
14 Inside Scream! 137
14.2 The calvals.txt file 138
14.3.2 Linux version 139
14.4 Error messages 140
• The disk is full 141
15 Revision history 142

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Guralp-systems Scream Manuale Utente Pagina 83

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