Lyons NanoVNA User manual

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 1/51
N anoV N A User Guide
1. ntroduction
i. What is N anoV N A
ii. What is required for operation
iii. Basics of N anoV N A
iv. Oscillation frequency of N anoV N A
2. First thing
3. input method
4. How to read the screen
i. Main screen
a. 1. START 2. STOP frequency
b. 3. Marker
c. 4. Calibration status
d. 5. Reference position
e. 6. Marker status
f. 7. Trace status
g. 8. Battery status
ii. Main screen 2
a. 9. CE N TER frequency 10. span
b. Menu screen
c. 11. Menu
iii. Keypad screen
a. 12. N umeric keys

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 2/51
b. 13. Back key
c. 14. Unit key
d. 15. nput eld
5. Start measurement
i. Basic measurement sequence
6. Calibration method
7. function
i. Trace display
a. Trace format
b. Trace channel
ii. marker
iii. Time domain operation
a. Time domain bandpass
b. Time domain low pass impulse
c. Time domain lowpass step
a. Step response example
d. Time domain window
e. Setting the wavelength reduction factor (Velocity Factor) in the time domain
f. Set frequency from marker
iv. Setting the measurement range
a. Setting the start frequency and stop frequency
b. Set center frequency/span
c. Zero span
d. Temporarily stop measurement
v. Calibration and setup recall
vi. Equipment settings

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 3/51
a. Touch panel calibration and testing
b. Save instrument settings
c. Show version
d. Firmware update
8. How to update the rmware
i. How to get the rmware
a. ttrftech version rmware
b. hugen version rmware
c. Build it yourself
ii. How to write the rmware
a. Writing with dfu-util (Ubuntu)
b. Writing with dfu-util (macOS)
c. Writing with dfu-util (Windows 10)
iii. How to write the rmware (Windows GU )
a. Convert the le format with DFU File Manager.
b. Writing rmware with DfuSe Demo
9. Firmware Development Guide
i. Build with Docker
ii. On-chip debugging with Visual Studio Code
a. tasks.json
b. launch.json
c. Start debugging
10. Example of use
i. Bandpass lter adjustment
ii. Antenna adjustment
a. Trace settings

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 4/51
iii. Cable check
iv. Common mode lter measurement

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 5/51
ntroduction
This document is an unocial user guide for N anoV N A. The URL is https://cho.github.io/ N anoV N A-manual/.
t is managed by the github repository .
Please send Pull-request when there are corrections such as discrepancies with the latest rmware.
t is also available in PDF format on the Releases page on GitHub.
https://github.com/cho/ N anoV N A-manual/releases
What is N anoV N A
There are several types of N anoV N A hardware and this document covers the following hardware:
ttrftech version (original) ttrftech/ N anoV N A
hugen version hugen/ N anoV N A-H
These hardware have almost the same components on the circuit, and common rmware is available.
What is required for operation
You need at least the following:
N anoV N A body
SMA LOAD  Ω
SMA SHORT
SMA OPE N

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 6/51
SMA Female to Female Through Connector
SMA Male to Male cable × 2
Basics of N anoV N A
V N A (Vector N etwork Analyzer) measures the frequency characteristics of reected power and passed power of a high frequency
network (RF N etwork).
N anoV N A measures the following factors:
nput voltage /Q signal
/Q signal of reected voltage
/Q signal of passing voltage
From here we calculate:
Reection coecients S
Transmission coecient S
The following items that can be calculated from these can be displayed.
Reection loss
Passage loss
Complex impedance
resistance
reactance
SWR
Such.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 7/51
Oscillation frequency of N anoV N A
The N anoV N A measures the reection coecient and transmission coecient at 101 points in the measurement frequency band.
The local frequency of N anoV N A is kHz to MHz. Frequencies above this use harmonic mode. The fundamental wave is not
attenuated even in harmonic mode. The usage modes for each frequency are as follows.
Up to MHz: fundamental wave
From MHz to MHz: rd harmonic
MHz to MHz: th harmonic
Especially when checking the gain of the amplier, it is necessary to be careful that the fundamental wave is always input.
The input is in each case converted to an intermediate frequency of kHz. The signal is analog-to-digital converted at kHz
sampling. The digital data is processed by the MCU.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 8/51
First thing
t must always be calibrated rst before it can be used. nitially calibrate as follows.
Make sure START is at kHz
Make sure STOP is MHz
Calibrate according to the calibration method

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 9/51
input method
The N anoV N A has the following inputs.
Touch panel long tap
Lever switch
L/L long press
R / R long press
Push / Push and hold
Power slide switch

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 10/51
How to read the screen
Main screen
1. START 2. STOP frequency
Displays the respective frequencies when start/stop is specied.
3. Marker
The position of each marker on the trace is displayed. The selected marker can be moved by the following methods.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 11/51
Drag the marker on the touch panel
Press and hold LR on the lever switch
4. Calibration status
The data number of the calibration being read and the error correction applied are displayed.
C0 C1 C2 C3 C4 : Each indicates that the corresponding number of calibration data is loaded.
c0 c1 c2 c3 c4 : Each shows that the corresponding number of calibration data has been loaded, but the frequency range
has changed after loading and indicates that compensation is being used for error correction.
D : directivity ndicates that error correction is applied
R : refrection tracking ndicates that error correction is applied
S : source match ndicates that error correction is applied
T : transmission tracking ndicates that error correction is applied
X : isolation (crosstalk) indicates that error correction is applied
5. Reference position
ndicates the reference position of the corresponding trace. DISPLAY SCALE REFERENCE POSITION You can change the position with.
6. Marker status
You will see the active marker selected and one previously active marker.
7. Trace status
The status of each trace format and the value corresponding to the active marker are displayed.
For example CH0 LOGMAG 10dB/ 0.02dB , read as follows.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 12/51
Channel CH (reection)
format LOGMAG
Scale is 10 dB
Current value is .dB
n addition, the channel display is reversed for the active trace.
8. Battery status
f the battery is installed and is D2 already mounted on the PCB , an icon will be displayed according to the battery voltage.
Main screen 2

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 13/51
9. CE N TER frequency 10. span
When the center frequency and span are specied, the respective frequencies are displayed.
Menu screen
11. Menu
You can display the menu by the following operations.
When you tap anywhere on the touch panel other than the marker
Push in the lever switch

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 14/51
Keypad screen
12. N umeric keys
Tap a number to enter one character.
13. Back key
Delete one character. f you have not entered any characters, the entry is canceled and the previous status is restored.
14. Unit key
mmediately ends the input by multiplying the current input by the appropriate unit. n case of × 1, the entered value will be set as it
is.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 15/51
15. nput eld
The input item name and the entered number are displayed.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 16/51
Start measurement
Basic measurement sequence
1. Set the frequency range to measure
2. Calibrate
3. Connect DUT

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 17/51
Calibration method
Calibration basically needs to be done every time the frequency range to be measured is changed. f the error is corrected correctly,
the calibration status display on the screen will Cn D R S T X be. n is the data number you are loading.
However, the N anoV N A can supplement the existing calibration information and give a somewhat correct display. This happens if
you change the frequency range 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 you are loading.
1. Reset current calibration state CAL RESET
2. Connect the OPE N standard to the CH port CAL CALIBRATE OPEN and execute.
3. Connect the SHORT standard to the CH port CAL CALIBRATE SHORT and run.
4. Connect the LOAD standard to the CH port CAL CALIBRATE LOAD and run.
5. Connect the LOAD standard to the CH and CH ports CAL CALIBRATE ISOLN and execute. The CH port can be left
unconnected if there is only one load.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 18/51
6. Connect the cables to the CH and CH ports, connect the cables with the through connector, CAL CALIBRATE THRU and
execute.
7. Finish calibration and calculate error correction information CAL CALIBRATE DONE
8. Specify the data number and save. CAL CALIBRATE SAVE SAVE 0
* t is necessary to import each calibration data after the display is suciently stable.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 19/51
function
Trace display
You can display up to four traces, one of which is the active trace.
The trace can display only what you need. DISPLAY TRACE TRACE n Select to switch the display .
There are the following methods to switch the active trace.
Tap the trace marker you want to activate
DISPLAY TRACE TRACE n Select to display. ( f it is already displayed, you need to hide it temporarily)
Trace format
Each trace can have its own format. To change the format of the active trace, DISPLAY FORMAT select the format you want to
change.

08/09/2020 NanoVNA User Guide | NanoVNA User Guide
https://cho45.github.io/NanoVNA-manual/#7- トレース 状 態 20/51
The display of each format is as follows.
LOGMAG : Logarithm of absolute value of measured value
PHASE : Phase in the range of -180 ° to + 180 °
DELAY : Delay
SMITH : Smith chart
SWR : Standing Wave Ratio
POLAR : Polar coordinate format
LINEAR : Absolute value of measured value
REAL : Real number of measured value
IMAG : maginary number of measured value
RESISTANCE : Resistance component of the measured impedance
REACTANCE : Reactance component of impedance of measured value
Trace channel
The N anoV N A has CH0 CH1 two ports. The following S-parameters can be measured at each port.
CH0 S (reection loss)
CH1 S (insertion loss)
To change the channel of the trace DISPLAY CHANNEL of CH0 REFLECT or CH1 THROUGH to select a.
marker