R&S FSQ Signal Analyzer - Rohde & Schwarz

R&S FSQ Instrument Functions
SELECT
MARKER
TOI MKR CALC
SRCH
HARMONIC
DISTOR
Analyzer Mode
The R&S FSQ calculates the third order intercept from the level spacing between
normal markers and delta markers and outputs it in the marker info field.
Remote command: CALC:MARK:FUNC:TOI ON;
CALC:MARK:FUNC:TOI:RES?
Example
A two-tone signal with frequencies of 100 MHz and 101 MHz is applied to the RF
input of the R&S FSQ. The level of the two signals is -10 dBm.
[PRESET] The R&S FSQ is set to the default setting.
[CENTER: 100.5 MHz] The center frequency is set to 100.5 MHz.
[SPAN: 3 MHz] The span is set to 3 MHz.
[AMPT: -10 dBm] The reference level is set to -10 dBm.
[MKR FCTN] MARKER 1 is switched on and set to the signal peak.
[TOI] The R&S FSQ sets the 4 markers to the useful signals and
the intermodulation products and calculates the third order
intercept. The result is output in the marker info field.
The SELECT MARKER softkey activates the selection of a marker for functions
MODULATION DEPTH and TOI. Thus, the markers can be fine-adjusted for these
functions.
The markers are numerically selected in a data entry field. Delta marker 1 is
selected by entering '0'.
If the marker is in the switch-off state, it will be switched on and can thus be shifted.
Remote command: CALC:MARK1 ON;
CALC:MARK1:X ;
CALC:MARK1:Y?
The TOI measurement is based on positioning the markers 3 and 4 onto the position
of the calculated intermodulation products. The accuracy of these frequency calculations
depend on the precision of the two carrier frequencies found with peak search.
The softkey TOI MKR CALC SRCH allows to switch between the calculated marker
position (CALC) and perfoming a local peak search near the expected frequencies
(SRCH) instead of the faster position calculation.
By default, the faster CALC method is used.
Remote command: CALC:MARK:FUNC:TOI:MARK CALC
4.5.13.9 Harmonic Measurement
HARMONIC (ON OFF)
NO. OF HARMONICS
HARMONIC SWEEPTIME
HARMONIC RBW AUTO
ADJUST SETTINGS
4.124 Operating Manual 1313.9681.12 - 01