The Fiber QuickMap™ has the ability to automatically evaluate the reflectance of a connection from -20 dB to -45 dB. This is done by setting a threshold in the tester. It will report the reflectance is dB from -20 dB to XXX dB. Changing the threshold value is easy.
To change it, press MENU/SELECT.
Press 
or 
to highlight REFLECTION LIMIT.
Press MENU/SELECT and use and to change the value.
Press MENU/SELECT when done.