Last modified by robert on 2026/02/27 19:58

From version 105.3
edited by robert
on 2026/02/17 15:40
Change comment: There is no comment for this version
To version 105.4
edited by robert
on 2026/02/17 15:44
Change comment: There is no comment for this version

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449 449  [[X axis is samples (.01 s), Y axis is velocity (m/s), 0.5-5 Hz filter>>image:BD3C_N_huddle.png]]
450 450  
451 -== Horizontal noise & how to avoid ==
451 +== IGU-16 Horizontal noise & how to avoid ==
452 452  
453 453  The** 5 Hz nodes** are susceptible to horizontal noise due to the placement of geophones in the units, **but this can be mitigated by completely burying the units flush with the ground.** In the below example, the node was set on the floor of our basement set on its plastic carrying case support. As such the amount of horizontal noise noticeably increases above ~~ 10Hz.
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