Ratio Calculations; Error Correction - Agilent Technologies 8712ET Programmer's Manual

Table 6-4
Trace Data Transfers
Internal Measurement Arrays
CH[1|2]BFWD and CH[1|2]RFWD. Raw data for AUX INPUT is not
available via GPIB. Use the corrected data array to access AUX INPUT
data.
Raw Data Arrays
Selected Measurement
Transmission (B/R)
Reflection (A/R)
A
B
R
Power (B*)
Conversion Loss (B*/R*)
R*
AM Delay (Y/X)
X
Y
Y/R*
Y/X, X/Y

Ratio Calculations

These are performed if the selected measurement is a ratio (e.g. A/R or
B/R). This is simply a complex divide operation. If the selected
measurement is absolute (e.g. A or B), no operation is performed.

Error Correction

Error correction is performed next if correction is turned on. Error
correction removes repeatable systematic errors (stored in the error
coefficient arrays) from the raw arrays. The operations performed
depend on the selected measurement type.
6-22
Raw Arrays
B = CH[1|2]BFWD, R=CH[1|2]RFWD
A = CH[1|2]AFWD, R= CH[1|2]RFWD
A = CH[1|2]AFWD
B = CH[1|2]BFWD
R = CH[1|2]RFWD
B*= CH[1|2]BFWD
B*= CH[1|2]BFWD, R*= CH[1|2]RFWD
R*= CH[1|2]RFWD
Y = CH[1|2]BFWD, X = CH[1|2]RFWD
X = CH[1|2]RFWD
Y = CH[1|2]BFWD
Y = CH[1|2]BFWD, R* = CH[1|2]RFWD
Y = CH[1|2]BFWD, X = CH[1|2]RFWD
Programmer's Guide