HP 8517B - Manual (Page 52)

HP 8517B S-Parameter Test Set Manual 3-14
Performance Verification
Standard system performance verification procedures verify the operation of
an Option 001 test set used as test set number 1.
To verify the performance of a different test set in the configuration, enter its
HP-IB address (as explained in “Making Operational Checks” on page 3-13)
to select it, then continue with this procedure.
Refer to the HP 8510C On-Site Service Manual for its performance
verification procedure.