Technical data

4-24
Hardkey and Softkey Reference
REFL: O. configures the instrument for a measurement of the optical complex reflection coefficient (magnitude and
phase) of the device under test.
REFL: REV S22 (B/R). defines the measurement as S
22
, the complex reflection coefficient (magnitude and phase) of the
test device output.
REFLECT AND LINE. measures the reflection and thru paths of the current calibration standard.
REFLECTED POWER. is used to enter the percent of reflected power for either the Fresnel reflection or the reflector. If
this value is set to zero, reflected power is calculated as a Fresnel reflection using the offset index of refraction and air.
REFLECTION. leads to the reflection calibration menu.
REFLECTOR. in the Optical Kit, Modify Standards menu this key is used to modify the reflector model coefficient. in the
optical reflection and transmission Response Calibration menus, this key is used to measure the reflector reference
standard.
REFL SENS. initiates the response calibration for an E/O reflection sensitivity measurement.
REMOVE ADAPTER. completes the adapter removal procedure, removing the effects of the adapter being used.
RENAME FILE. allows you to change the name of a file that has already been saved.
RE-SAVE STATE. re-saves file data to an existing file or register. (The analyzer overwrites the existing file or register
contents.)
RESET COLOR. resets the color being modified to the default color.
RESET MODEL. resets “k” to one and all other model coefficients to zero.
RESPONSE. When in the specify class more menu, RESPONSE is used to enter the standard numbers for a response
calibration. This calibration corrects for frequency response in either reflection or transmission measurements,
depending on the parameter being measured when a calibration is performed. (For default kits, the standard is either
the open or short for reflection measurements, or the thru for transmission measurements.) When in the response cal
menu, RESPONSE leads to the frequency response calibration. This is the simplest and fastest accuracy enhancement
procedure, but should be used when extreme accuracy is not required. It effectively removes the frequency response
errors of the test setup for reflection or transmission measurements. For electrical reflection measurements, the
standard is either an open or a short. For optical reflection measurements, the standard is either a Fresnel reflection or
a user-defined reflecting device.
RESPONSE ISOL'N. When in the specify class more menu, RESPONSE ISOL'N is used to enter the standard numbers
for a response and isolation calibration. This calibration corrects for frequency response and directivity in reflection
measurements, or frequency response and isolation in transmission measurements. When in the response and isolation
menu, RESPONSE ISOL'N leads to the menus used to perform a response and isolation measurement calibration, for
measurement of devices with wide dynamic range. This procedure effectively removes the same frequency response
errors as the response calibration. In addition, it effectively removes the isolation (crosstalk) error in transmission
measurements or the directivity error in reflection measurements. As well as the devices required for a simple
response calibration, an isolation standard is required. For electrical measurements, the standard normally used is a
broadband termination (load). For optical measurements, remove optical power from the optical input either by
turning the laser off or by disconnecting the cable from the optical input.
RESPONSE & MATCH. removes frequency response errors and electrical port match errors due to reflections between:
1) The electrical output port of the analyzer and the input port of an E/O device. 2) The output port of an O/E device
and the electrical input port of the analyzer.
RESTORE DISPLAY. turns off the tabular listing and returns the measurement display to the screen.
RESUME CAL SEQUENCE. eliminates the need to restart a calibration sequence that was interrupted to access some
other menu. This softkey goes back to the point where the calibration sequence was interrupted. If you change any of
the following settings, the calibration will become invalid: IF bandwidth, frequency range, number of points, power.
RETRACE PWR on STD. when on, causes the analyzer to retrace the sweep only over the current frequency range, and
does not turn off the power during retrace, unless crossing a 20.05 GHz source band. When in STD mode, the analyzer
may turn off the source power, or sweep to a lower frequency if it provides a faster retrace.
REV ISOL'N. measures the reverse isolation of the calibration standard during an enhanced response cal.
REV ISOL'N ISOL'N STD. measures the reverse isolation of the calibration standard during a full 2-port cal.
REV MATCH (Label Class). lets you enter a label for the reverse match class. The label appears during a calibration