DISPLAY / FORMAT / LOGMAG – meri dolžino coax, izgube, dolžino do napake https://www.youtube.com/watch?v=9thbTC8-JtA&ab_channel=w2aew
DISPLAY / FORMAT / SMITH – meri indukcijo in imepdanco
DISPLAY / FORMAT / SWR
DISPLAY / FORMAT / MORE / RESISTANCE – meri uporabnost
Konfiguracija SCALE:
DISPLAY / SCALE
DISPLAY / SCALE / SCALE/DIV nastaviš med 0.25 X1 to je dovolj dobro za merjenje da prikaže SWR 3 proti 1
NASTAVIŠ START IN STOP FREKVENCO:
STIMULUS
STIMULUS / START – nastaviš začetno frekvenco
STIMULUS / STOP – nastaviš končno frekvenco
STIMULUS / CENTER
STIMULUS / SPAN
STIMULUS / CW FREQ
STIMULUS / PAUSE SWEEP
KALIBRACIJA nanoVNA
CAL
CAL / RESET – pred pričetkom vedno izbrišeš vse vrednosti in narediš RESET
Kabel priključiš na S11 oz. CH0
CAL / CALIBRATE
CAL / CALIBRATE
SAVE4 so kabli za plat test
However, NanoVNA can complement the existing calibration information and display to some extent correct. This will happen if the frequency range is changed after loading the calibration data. At this time, the display of the calibration status on the screen is cn D R S T X. n is the data number being loaded.
Reset the current calibration state CAL RESET
Connect OPEN standard to port1( CH0 ) and execute CAL CALIBRATE OPEN.
Connect SHORT standard to port1( CH0 ) and execute CAL CALIBRATE SHORT.
Connect the LOAD standard to the port1( CH0 ) and execute CAL CALIBRATE LOAD.
Connect the LOAD standard to port1( CH0 ) and port2( CH1 ) and execute CAL CALIBRATE ISOLN. If there is only one load, connect the LOAD standard to port1( CH0 ) , the port2( CH1 ) can be left unconnected.
Connect cables to the port1( CH0 ) and port2( CH1 ) , connect the cables with the through connectors, and execute CAL CALIBRATE THRU.
End calibration and calculate error correction information CAL CALIBRATE DONE
Specify the data number and save. CAL CALIBRATE SAVE SAVE 0
Each calibration data must be imported after the display is sufficiently stable.
MERJENJE DOLŽINE KABLA:
https://www.youtube.com/watch?v=9thbTC8-JtA&ab_channel=w2aew
Preko menija DISPLAY TRACE, ugasnemo vse kanale pustimo samo CHANNEL 0
Za meritve nastavimo v meniju FORMAT / MORE / LINEAR
Nakar za prikaz izberemo TRANSFORM / LOW PASS IMPULSE
Nato se vrnomo n v meniju TRANSFORM / TRANSFORM ON
Nato se vrnomo n v meniju TRANSFORM / VELOCITY FACTOR vnesemo 80 normalne vrednosti coax so 78 in 85 https://www.febo.com/reference/cable_data.html RG213 ima 66
Nastaviš frekvenco
STIMULUS / START – nastaviš začetno frekvenco čim nižjo
STIMULUS / STOP – nastaviš končno frekvenco video nastavi 200 Mhz