[SAC-HELP] Remove Response Instrument

[Milton P. Plasencia Linares]

look below,

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

Dipartimento Centro di Ricerche Sismologiche
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS

Borgo Grotta Gigante 42/C
(34010) Sgonico - TRIESTE - ITALIA
Tel: +39-040-2140 256/141
Fax: +39-040-327307

E-mail: mplasencia at inogs.it

ASAIN (Antarctic Seismographic Argentinean Italian Network)
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Quoting "amik Amik" <amik.mamat at yahoo.co.id>:

> I am working on a local magnitude research. I want to remove   
> response instrument
> from the data and simulate the response of Wood Anderson   
> seismograph. What should I do?
> I have a few questions :
> 1. Which one the true procedure and command in SAC :
>    a) SAC> trans from evalresp to none
>       and then
>       SAC> trans from polezero subtype "file name.pz" to none
>
>    b) SAC> trans to polezero subtype "wood anderson file name.pz"
>
>    c) SAC> trans to wa
>
>    d) SAC> trans from polezero subtype "sation's file name.pz" to wa
Option d) This is fine if you use the polezero station file.
>
>    e) SAC> trans from polezero subtype "sation's file name.pz" to wa to none
>
>    f) SAC> trans from evalresp fname RESP.SATION to wa
>
>    g) SAC> SAC> trans from polezero subtype "sation's file name.pz"   
> freq 0.005 0.01 1.0 2.0
>
> 2. What the different utilizing of Response File and Polezero File?
Response file include the filter (FIR) coefficients

>    I think polezero already included in responfile, is it right ?
Yes.
>
> May you help me? Thank You very much

My suggest ius use:

> transfer from polezero subtype "PZ file" to wa freq 0.005 0.01 1.0 2.0

>
>
> Sincerely Yours
> Ami
>
Cheers,

Milton



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