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3M
™
Advanced Systems Tester 900AST Series
6
TDR Setup
The TDR features a setup function that allows you to
select the type of Coaxial wire to be tested.
From the TDR Menu, press the Setup key to
enter the TDR Setup.
Press the select key and the and arrow
keys to highlight coaxial cable for wire type.
Use the
select key to move to the wire gauge
box. Use the
and keys to highlight the type
of coaxial cable to be tested and select ‘minimum
possible’ or ‘last used’ initial measurement length
setting.
Note: The 900AST tester maintains modified Vp
settings in internal memory. Press the
key in the TDR Setup screen to restore
original default Vp settings for all wire types.
Use the blue numeric keys changes the velocity
factor for the selected coaxial wire type or use the
default setting.
Press the enter key
to accept changes and
proceed.