[SAC-HELP] About transfer function in SAC

[wwxu]

Dear ALL, 

I am using function "transfer" to deconvolve the instrument response in
SAC, the usage is as "transfer from polezero subtype cmg3esp.response to
none", and the file "cmg3esp.response" is in the format as SAC mannual
told(poles, zeros, constant), here I want to know what is the unit of poles
and zeros, radian/sec or Hz? it is very different as we know, can anyone
help me? 

Your sincerely,
Xu W. 

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Dr. WeiWei Xu
Institute of Geology and Geophysics
Chinese Academy of Sciences
P.O.Box 9825
Beijing 100029
China
Tel: 0086-10-62007354(Office)
Fax: 0086-10-62010846
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