<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Blaine,<div><br></div><div>This error is generated by evalresp. You should be able to confirm this by running evalresp on your RESP file.</div><div><br></div><div>For example</div><div><div>% evalresp CPCT HHE 2010 001 0.001 20 -v -f RESP.ET.CPCT.HHE.2</div></div><div><div><< EVALRESP RESPONSE OUTPUT V3.3.3 >></div><div> WARNING (norm_resp): computed and reported sensitivities differ by more than 5 percent. </div><div><span class="Apple-tab-span" style="white-space:pre"> </span> Execution continuing.</div><div> --------------------------------------------------</div><div> RESP.ET.CPCT.HHE.2</div><div> --------------------------------------------------</div><div> ET CPCT 00 HHE 2009,001,00:00:00 2011,026,00:00:00</div><div> Seed units: Velocity(in)->Counts(out)</div><div> computed sens=1.14868E+09 (reported=1.25829E+09) @ 5.00000E-02 Hz</div><div> calc_del=8.92261E-01 corr_app=8.92261E-01 est_delay=8.92261E-01 final_sint=0.01(sec/sample)</div><div> stage 1: LAPLACE A0=6.259322E+08 NZeros= 2 NPoles= 5 Sd=1.369329E+03</div><div> stage 2: GAIN Sd=1.000000E+00</div><div> stage 3: FIR_SYM_1 H0=1.000000E+00 Ncoeff= 1 SamInt=1.953125E-06 Sd=8.388610E+05</div><div> stage 4: FIR_SYM_2 H0=1.000000E+00 Ncoeff= 36 SamInt=1.953125E-06 Sd=1.000000E+00</div><div> stage 5: FIR_SYM_2 H0=1.000000E+00 Ncoeff= 6 SamInt=1.562500E-05 Sd=1.000000E+00</div><div> stage 6: FIR_SYM_1 H0=1.000000E+00 Ncoeff= 7 SamInt=3.125000E-05 Sd=1.000000E+00</div><div> stage 7: FIR_SYM_2 H0=1.000000E+00 Ncoeff= 48 SamInt=6.250000E-05 Sd=1.000000E+00</div><div> stage 8: FIR_SYM_2 H0=1.000000E+00 Ncoeff=126 SamInt=2.500000E-04 Sd=1.000000E+00</div><div> stage 9: FIR_SYM_1 H0=1.000000E+00 Ncoeff=501 SamInt=5.000000E-04 Sd=1.000000E+00</div><div> stage 10: FIR_SYM_1 H0=1.000000E+00 Ncoeff=501 SamInt=1.000000E-03 Sd=1.000000E+00</div><div> stage 11: FIR_SYM_1 H0=1.000000E+00 Ncoeff=501 SamInt=2.000000E-03 Sd=1.000000E+00</div><div>--------------------------------------------------</div></div><div>%</div><div><br></div><div>Possibly someone at IRIS can comment on this further. I think the first gain value is being modified due to a Analog PoleZero.</div><div><br></div><div>Brian</div><div><a href="mailto:savage@uri.edu">savage@uri.edu</a></div><div><br><div><div>On Feb 18, 2014, at 4:57 PM, Blaine Bockholt (bbckholt) wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif; "><div style="margin-top: 0px; margin-bottom: 0px; ">I am attempting to remove the instrument response of some data. I downloaded the RESPFILE from IRIS and while using the evalresp option of transfer, I get the following error:<br></div><div style="margin-top: 0px; margin-bottom: 0px; "><br></div><div style="margin-top: 0px; margin-bottom: 0px; ">"WARNING (norm_resp): computed and reported sensitivities[ET.CPCT.00.HHE] differ by more than 5 percent."<br></div><div style="margin-top: 0px; margin-bottom: 0px; "><br></div><div style="margin-top: 0px; margin-bottom: 0px; ">I thought the final sensitivity at the end of the file is the product of all the different gain/sensitivities of each stage. When I calculate it by hand, I get the sensitivity reported. I am not sure where this error is coming from, nor I am sure how SAC calculates the sensitivity. Thanks.<br></div><div style="margin-top: 0px; margin-bottom: 0px; "><br></div><div style="margin-top: 0px; margin-bottom: 0px; ">Blaine<br></div><div style="margin-top: 0px; margin-bottom: 0px; "><br></div><div style="margin-top: 0px; margin-bottom: 0px; ">Here is the command I use<br></div><div style="margin-top: 0px; margin-bottom: 0px; "><br></div><div style="margin-top: 0px; margin-bottom: 0px; ">trans from evalresp fname ET.CPCT.resp to none freqlim 0.001 0.002 15 20<br></div></div>_______________________________________________<br>sac-help mailing list<br><a href="mailto:sac-help@iris.washington.edu">sac-help@iris.washington.edu</a><br><a href="http://www.iris.washington.edu/mailman/listinfo/sac-help">http://www.iris.washington.edu/mailman/listinfo/sac-help</a><br></div></blockquote></div><br></div></body></html>