Section  7  —  Analyzing  Measurements  Onsite 
143 
Fixed Y Axis scale options 
 
Setting  a  Max  dB  value  sets  the  highest  value  the  amplitude  axis  can 
display.  If  a  peak  goes  above  this  value  while  you  are  measuring,  you  will 
NOT  see  the  top  of  the  peak.  When  using  Linear  scaling  you  have  two 
extra  display  options: 
•  Automatic  —  Enables  the  instrument  to  auto-scale  the  left  axis 
to  accommodate  the  highest  and  lowest  peaks.  
•  Current  —  Fixes  the  Y  axis  to  whatever  amplitude  is  currently 
displaying,  regardless  of  how  large  or  small  the  peaks  become.