3M 900AST manual TDR Setup

3M™ Advanced Systems Tester 900AST Series

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.

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