Trace data quality byte definitions

[cellectronic]

Hi All

I am trying to understand what the byte definitions mean in some of my trace data .  Seen below , The data fields are 0X00 0X00

SPG.SHZ.GB.00 (0x32 0x30) 0 i4  75  75.0 2023/03/22 19:11:25.00 (1679512285.0000) 2023/03/22 19:11:25.99 (1679512285.9867) 0x00 0x00 i255 m143 t19 len 364 [D:1.98s F: 1.0s]

However below shows a different value, The two stations are from different digitisers from different manufacturers,

WBK.SHZ.GB.00 (0x32 0x30) 4 i4 1000 100.0 2023/03/22 19:10:45.00 (1679512245.0000) 2023/03/22 19:10:54.99 (1679512254.9900) 0x4f 0x52 i255 m123 t19 len4064 [D:40.18s F:10.0s]

Also noted is the delay value of 40.18s on WBK which could be the cause, and is something I am looking into 

Hoping someone can explain , Thankyou.

[Paul Friberg]

These are the VERSION number fields introduced when TRACE_BUF2 became available. If you look in include/trace_buf.h you will see the TRACE2_VERISON defines that explain how these are used....they are not rigidly checked, but some programs use these to look for other extended values in the TRACE_BUF2 header.

Paul

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===================================
Paul Friberg   p.fr...@isti.com
CEO/Seismologist
ISTI==Instrumental Software Technologies, Inc.
Phone +1.518.602.0001