[Amps] calibrating an 8405a ??

[Dan Sawyer]

All,

I have an 8405a that in nearly working however it needs a calibration. 
The extender card is in place. My question is: To use the extender card 
do I move it to the test card location or use it in place?

I assume it is moved. However the instructions are not clear.

Thanks,
Dan