<div id="_htmlarea_default_style_" style="font:10pt arial,helvetica,sans-serif"><br>Dear SAC users,<br><br>I am trying to interpolate two horizontal
components of a station using interpolate command as follows:<br><br><br>SAC> r 2007197141737_XO_KF101..M.BHN.BP
2007197141737_XO_KF101..M.BHE.BP<br>SAC> setbb ncut $begdiffNPTS<br>SAC getbb ncut <br>SAC> interpolate b (max &1,b &2,b ) npts (
&1,npts - %ncut ) delta &1,delta<br><br>Then after all these procedure, I get the following warning:<br><br>WARNING: Requested begin
time is less than files begin time. Output truncated.<br><br><br>Does anyone have any idea on how to get rid of these warning? <br><br>$begdiffNPTS is
given as an integer variable related to the number of points representing the differences between the begintimes of two horizontal components. It is
calculated before when sac runs, I calculate a. <br><br>thanks and regards<br><br>tuna<br><br><br><br><br></div>