Thread: Fwd: Help with removing instrument response

Dear Thulasiraman,

Your process is correct, only there some importante details.

1) Your sensor seems a gephone with corner frequency at 5 Hz , so 5 Hz high pass.
in this scenario your freqlimits are wrong, you can use 6 10 40 50 for example.

2) Your command transfer from polezero subtype SAC_PZs_YA_LOT1 to vel freqlimits 0.001 0.1 40 50
i will change to vel —> to none and also change the freqlimits.
if you do to vel, you obtain velocity, but i do not know if it is that you want

i will use: transfer from polezero subtype SAC_PZs_YA_LOT1 to none freqlimits 6 10 40 50
to obtain displacement.



HTH,

Milton

* * * * * * * * * * * * * * * * * * * * * * *
Milton P. PLASENCIA LINARES

Centro di Ricerche Sismologiche (CRS)
OGS - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale

Borgo Grotta Gigante 42/C
(34010) Sgonico - Trieste - Italia
Tel: +39 040 2140 141 (Udine)
Tel: +39 040 2140 256 (Trieste)
Cel.: +39 331 6481 935

E-mail: mplasencia<at>inogs.it

ASAIN (Antarctic Seismographic Argentinean Italian Network)
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On Jan 1, 2015, at 10:45, Thulasiraman Natarajan <geothulasi<at>gmail.com> wrote:

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