Hvad kan måles
Dette findes i hjælp: Settings - Diagrams - Display - Traces
Available trace types:
S21, S11, S12 , S22 => measured data
Memory 1...4 => stored data
Unitarity => |S11|²+|S21|² = fraction of power not dissipated
M.3/M.4 => Memory 3 / Memory 4
S21/M.3 => S21 / Memory 3
S11/M.4 => S11 / Memory 4
TimeDomain => inverse FFT of selected data space, see example.
Gated F-Domain => FFT of gated time response, see example.
Custom1...6 => arbitrary mathematical expression containing data space variables, see example.
s11,s12,...s33 => 3-port S-parameters
Available display types:
Re dB => real part shown in dB
Im dB => imaginary part shown in dB
sVSWR => signed VSWR, negative for reflection coefficients > 1
phase => range -pi ... pi
continuous phase => extended range such that phase function becomes continuous
-cont. phase/f => minus continuous phase / frequency
group delay time
dFreq => frequency-center of RX input signal (only applicable for zero frequency span in VNWA mode for VNWA2 and VNWA3)
dFreq/Freq => (frequency-center)/center of RX input signal
(only applicable for zero frequency span in VNWA mode for VNWA2 and VNWA3)
Frequency => frequency of RX input signal (only applicable for zero frequency span in VNWA mode for VNWA2 and VNWA3)
The following display types are only visible for trace types S11 and S22. Z denotes the impedance and Y the admittance calculated from the reflection coefficient.
| Z |
C -- => series equivalent circuit capacitance, series resistance is real Z.
L -- => series equivalent circuit inductance, series resistance is real Z
| Y |
R || => parallel equivalent circuit resistance
C || => parallel equivalent circuit capacitance
L || => parallel equivalent circuit inductance
QC => quality factor of capacitor
QL => quality factor of inductor
smith renormalized => smith chart renormalized to user selectable complex impedances (power wave representation), see example