▾ FFT data ▾ Reference spectrum ▾ Reference signal ▾ Gain correction ▾ Matrix correction ▾ Window function ▾ Raw samples

All files are *ASCII, with tab separated, numeric columns*. There is a header line starting with a #.
This line is ignored on read.

Applications like Gnuplot can process this files directly as well as LibreOffice and even Excel can read them out of the box
(simply rename to `*.xls`).

Column Symbol Description $1 fFrequency $2 | U|Amplitude of U(f) or nominator respectively

$3 arg UPhase angle of U(f) or nominator respectively in degrees

$4 | I|Amplitude of I(f) or denominator respectively

$5 arg IPhase angle of I(f) or denominator respectively in degrees

$6 | Z|Amplitude of the impedance U(f)/I(f) or transfer function$7 arg Z Phase angle of the impedance U(f)/I(f) or transfer function in degrees

$8 re ZReal part of the impedance U(f)/I(f) or transfer function$9 im ZImaginary part of the impedance U(f)/I(f) or transfer function$10 weightRelative weight $11 delayGroup delay d( U/I)/dω

$12 channelChannel 0for first (or the only) channel, 1 for the second channel in stereo modeoptional for each enabled harmonic ... $13 |Z2|Amplitude of the 2nd harmonic $14 arg Z2Phase of the 2nd harmonic in degrees $15 re Z2Real part of the 2nd harmonic $16 im Z2Imaginary part of the 2nd harmonic From the above columns you may calculate the following parameters for one-port measurements.

Ris the reference resistor used._{ref}_{ }

Symbol Description Formula Unit Remarks ESRequivalent series resistor $8 · R_{ref}Ω

ESCequivalent series capacitor

$\frac{-1}{2\mathrm{\pi}\xb7\mathrm{\$9}\xb7{R}_{\mathrm{ref}}}$ F only if $9 < 0 ESLequivalent series inductor

$\frac{\mathrm{\$9}\xb7{R}_{\mathrm{ref}}}{2\mathrm{\pi}\xb7\mathrm{\$1}}$ H only if $9 > 0 | Z|absolute value of the impedance $6 · R_{ref}Ω

tan δdissipation factor

$8 / |$9|

Column Symbol Description $1 fFrequency $2 | Ref|Amplitude of Ref(f)

$3 arg RefPhase angle of Ref(f)

$4 re RefReal part of Ref(f)$5 im RefImaginary part of Ref(f)$6 harmonicOrdinal of the harmonic. Negative values indicate the second channel in case two channel mode is activated.

Column Symbol Description - line number

Sample index n

$1 ref(n)Sample value in range [-1..1]

Column Symbol Description $1

fFrequency

$2 reReal part of gain difference $3 imImaginary part of gain difference $4 absAbsolute value of gain difference $5 argPhase angle of gain difference in degrees On input (option

gr) only the first three columns are used.

Column Symbol Description $1

fFrequency $2 re c_{ll}Real part of coefficient c_{ll}$3 im c_{ll}Imaginary part of coefficient c_{ll}$4 re c_{lr}Real part of coefficient c_{lr}$5 im c_{lr}Imaginary part of coefficient c_{lr}$6 re c_{rl}Real part of coefficient c_{rl}$7 im c_{rl}Imaginary part of coefficient c_{rl}$8 re c_{rr}Real part of coefficient c_{rr}$9 im c_{rr}Imaginary part of coefficient c_{rr}$10 | c|_{ll}Absolute value of coefficient c_{ll}$11 arg c_{ll}Phase angle of coefficient cin degrees_{ll}

$12 | c|_{lr}Absolute value of coefficient c_{lr}$13 arg c_{lr}Phase angle of coefficient cin degrees_{lr}$14 | c|_{rl}Absolute value of coefficient c_{rl}$15 arg c_{rl}Phase angle of coefficient cin degrees_{rl}$16 | c|_{rr}Absolute value of coefficient c_{rr}$17 arg c_{rr}Phase angle of coefficient cin degrees_{rr}$18 | L∞|Amplitude of the 1st channel during calibration with Z = ∞ $19

arg L∞

Phase of the 1st channel during calibration with Z = ∞ in degrees $20

| R∞|

Amplitude of the 2nd channel during calibration with Z = ∞ $21

arg R∞

Phase of the 2nd channel during calibration with Z = ∞ in degrees $22

| L0|

Amplitude of the 1st channel during calibration with Z = 0 $23

arg L0

Phase of the 1st channel during calibration with Z = 0 in degrees $24

| R0|

Amplitude of the 2nd channel during calibration with Z = 0 $25

arg R0

Phase of the 2nd channel during calibration with Z = 0 in degrees only for 3 point calibration ... $26 | L1|Amplitude of the 1st channel during calibration with Z = 1 $27

arg L1

Phase of the 1st channel during calibration with Z = 1 in degrees $28

| R1|

Amplitude of the 2nd channel during calibration with Z = 1 $29

arg R1

Phase of the 2nd channel during calibration with Z = 1 in degrees The file contains an array of complex 2×2 matrices $\left[\begin{array}{cc}{c}_{\mathrm{ll}}& {c}_{\mathrm{lr}}\\ {c}_{\mathrm{rl}}& {c}_{\mathrm{rr}}\end{array}\right]$. On input (option

zr) only the first 9 columns are used. → matrix calibrationThe physical meaning of the coefficients is:

Coefficient Meaning c_{ll}Channel 1 gain

c_{lr}Cross talk from channel 2 to channel 1

c_{rl}Cross talk from channel 1 to channel 2

c_{rr}Channel 2 gain

Column Symbol Description - line number

sample index n

$1 win(n)Relative value of the window function at index n

Column Symbol Description - line number

sample index n

$1 L(n)Channel 1 sample value in range [-1..1)

$2 R(n)Channel 2 sample value in range [-1..1)