Korg Nu:Tekt NTS-2 User manual

1
Table of Contents
Introduction .............................................................................2
Main features of this unit .........................................................2
Part names and functions ........................................................2
Making connections and turning on the power ......................2
Turning the power on/o ...................................................2
Auto power-o function ....................................................2
Four operating modes .............................................................2
Oscilloscope mode (SCOPE)..............................................................................................2
Function generator mode (WAVE) ..................................................................................2
Spectrum analyzer mode (FFT)........................................................................................2
Tuner mode (TUNER) ..........................................................................................................2
Basic operations.......................................................................3
Oscilloscope mode (SCOPE) .....................................................3
Explanations of each parameter ........................................3
Function generator mode (WAVE) ...........................................3
Button 1 (button 3): explanations of each parameter........3
Button 2 (button 4): explanations of each parameter .......3
CATEGORY = Oscillator.......................................................................................................3
CATEGORY = LFO.................................................................................................................3
CATEGORY = Noise..............................................................................................................3
CATEGORY = Pulse ..............................................................................................................3
CATEGORY = Envelope.......................................................................................................3
Spectrum analyzer mode (FFT)................................................3
Explanations of each parameter ........................................3
Tuner mode (TUNER)................................................................4
Explanations of each parameter ........................................4
Global mode.............................................................................4
1: Input ....................................................................................................................................4
2 : SETTINGS ..........................................................................................................................4
3 : SETTINGS ..........................................................................................................................4
Specications ...........................................................................4
Published 06/2022© 2022 KORG INC. www.korg.com
E 1
NTS-2 oscilloscope kit
MULTIFUNCTIONAL UTILITY KIT
Owner’s Manual
* All product names and company names are the trademarks or registered trademarks
of their respective owners.

2
En Introduction
ank you for purchasing the Multifunctional Utility Kit for the Nu:Tekt NTS-2 Os-
cilloscope Kit. To help you get the most out of your purchase, please read this manual
carefully.
Main features of this unit
is product is an assembly kit that you can use to build a digital oscilloscope. Aside
from letting you view audio output waveforms and CV signals, this oscilloscope func-
tions as a spectrum analyzer, oers a built-in tuner for tuning analog synthesizers, and
lets you output LFO, CV and other signals with its function generator.
Part names and functions
1
5 6 7 8 9
3 4
10
(Bottom)
2
1. Mode button
Use this button to switch between operating modes. Each time you press the button,
the mode changes.
a. Oscilloscope (SCOPE)
b. Function generator (WAVE)
c. Spectrum analyzer (FFT)
d. Tuner (TUNER)
e. Global (GLOBAL)
2. Buttons 1–4
e functions assigned to these buttons dier, depending on the operating mode.
3. START/STOP button
Starts and stops measurement. In function generator mode, this is also used to
output waveforms to an external device.
4. Value knob
Press to select a sub-menu, and turn to edit the selected parameter.
5. INPUT 1, 2 jacks
Connect a stereo (or mono) mini cable here to input the signal you wish to measure.
is lets you monitor the audio output from your musical instrument or input a CV
signal.
6. THRU 1, 2 jacks
Used as a thru out for the signal input from the INPUT 1 and 2 jacks.
7. OUTPUT 1, 2 jacks
Outputs the function generator signal.
Connect these jacks to your device with monaural mini plugs.
8. USB (Type-C) port
Use the included USB cable to connect this unit to the USB port on your computer
or to a commercially available USB standards-compliant AC adapter (at least 5 V
DC 550 mA).
9. Power button
Turns the power on and o. Hold this button down for approximately one second to
turn the power o.
10. Battery compartment
Making connections and turning on the power
USB (type C) port
USB cable
SIGNAL IN
SIGNAL OUT
NTS-2 oscilloscope kit
USB AC adapter
(USB 2.0 compatible)
(commercially available)
Computer
Use the included USB cable to connect this unit to the USB port on your computer
or to a commercially available USB standards-compliant AC adapter (at least 5 V DC
550mA).
Make sure to use the included USB cable.
Use a cable that’s no more than 3 m long when connecting your peripherals to this
unit.
Make sure to use an AC adapter that’s compliant with USB 2.0 standards. Note that
some standards-compliant USB AC adapters might not operate correctly.
Turning the power on/o
Long-press the power button to turn on the unit.
Long-press the power button again to turn the unit o.
Auto power-o function
e Nu:Tekt NTS-2 features an auto power-o function that automatically turns the
unit o aer one hour has elapsed without the knob, switches, buttons or other controls
being operated. e auto power-o function is enabled by factory default.
Auto power-o can be disabled using the steps below.
1. Use the mode button to enter global mode.
2. Press button 4 (SETTINGS: Power) a number of times to select “Auto Power
O(USB)” or “Auto Power O(Battery)”.
3. Turn the value knob to change the value to “innite”.
Four operating modes
Oscilloscope mode (SCOPE)
You can view the waveforms from up to four input sources. e functions below are
assigned to buttons 1–4.
1: D ISPL AY: Switches between input signals.
2: VERTICAL: Sets the display range for the vertical screen direction (voltage).
3: HORIZONTAL: Sets the display range for the horizontal screen direction (time).
4: TRIGGER: Sets which change in input signal causes the display to update.
Function generator mode (WAVE)
In this mode, signal is output from the OUTPUT 1 and 2 jacks. ese outputs can be
used even while an input signal is being received. You can use the START/STOP button
to turn the waveform output on/o, continuously output the waveform by holding
down the button, or output only one cycle of the waveform (one-shot) by just pressing
the button. e functions below are assigned to buttons 1–4.
1: CATEGORY: Selects the waveform for OUTPUT 2, sets the level and so forth.
2: EDIT: Congures the detailed settings for the OUTPUT 2 waveform.
3: CATEGORY: Selects the waveform for OUTPUT 1, sets the level and so forth.
4: EDIT: Congures the detailed settings for the OUTPUT 1 waveform.
Spectrum analyzer mode (FFT)
is mode lets you observe the frequency characteristics of the input signal, by using a
spectrum analyzer that employs an FFT (fast Fourier transform) algorithm. e func-
tions below are assigned to buttons 1–4.
1: INPUT: Switches between input signals.
2: VERTICAL: Sets the display range for the vertical screen direction (voltage).
3: HORIZONTAL: Sets the display range for the horizontal screen direction (time).
4: TRIGGER: Sets which change in input signal causes the display to update. Nor-
mally, this is set to AUTO.
Tuner mode (TUNER)
is mode measures the pitch of the input signal from the oscillator of an analog syn-
thesizer or other source. You can select between a horizontal meter and a needle-type
(VU) meter view. e functions below are assigned to buttons 1–4.
1: D ISPL AY: Selects the tuner display mode.
2: INPUT: Switches between input signals to measure.
3: CALIB: Adjusts the pitch lower or higher than the reference pitch of A=440Hz.
You can adjust the pitch within a range of 410–480 Hz.
4: SCOPE: Switches the oscilloscope display on/o.

3
Basic operations
1. Each time you press buttons 1–4, the parameter assigned to the button in question
changes one at a time and is shown in the popup screen in the display.
2. Once the desired parameter is shown, turn the value knob to edit the value.
3. Measurement starts/stops with each press of the START/STOP button.
is product is a multi-tool intended for use with musical instruments. Do not use
this product for anything under than its intended purpose, such as for calibrating
measurement devices and so on.
Oscilloscope mode (SCOPE)
Oscilloscope mode lets you monitor the input signals coming from the four input sourc-
es (INPUT 1, 2 L/R).
Use VERTICAL to set the voltage range for the vertical screen direction. For example, a
“5V” setting will display a 5 V voltage for each mark on the vertical axis.
Use HORIZONTAL to set the time scale in the horizontal screen direction.
Use the DISPLAY setting to select the inputs shown on the oscilloscope, display multiple
inputs separately or stacked on top of each other, or to display two inputs as an image
for comparing two dierent signals. To compare two signals with each other, set the
vertical and horizontal directions to the same setting.
Use TRIGGER to set the timing at which the scope measures the signal input.
Explanations of each parameter
Button#/NAME Pop Up Enc. Push Enc. Value
1: DISPLAY Overlay 1 ch mode 1L, 1R, 2L, 2R
2 ch mode 1L-1R, 1L-2L, 1R-2R, 2L-2R
4 ch mode ---
Separate-2 2 ch mode 1L-1R, 1L-2L, 1R-2R, 2L-2R
4 ch mode ---
Separate-4 --- ---
X-Y XY 1L-1R, 1L-2L, 1R-2R, 2L-2R
XY-TY overlay 1L-1R, 1L-2L, 1R-2R, 2L-2R
2: VERTICAL 1L Input mode
(DCnAC)
Vertical range:
10 mV–10 V/div (10 m, 20 m,
50 m, 0.1, 0.2, 0.5, 1, 2, 5, 10)
1R
2L
2R
3: HORIZONTAL Sec/Div --- Horizontal range:
50us–1 s/div (50, 100, 200,
500, 1 m, 2 m, 5 m, 10 m,
20m, 50 m, 100 m, 200 m,
500 m, 1)
Position Set position to zero Change center position
4: TRIGGER Auto Set trigger level to
zero
Set trigger level:
−5.00 V–5.00 V (0.01 V step)
Rise
Fall
Rise single
Fall single
START/STOP --- --- Oscilloscope RUN/STOP
* Buttons 1–4 + value knob (when the popup is shown): edits the popup item.
* Button 4 + value knob: push to edit what is triggered.
* START/STOP button: controls the run/stop and single mode standby.
Function generator mode (WAVE)
Use this mode to output oscillator /noise signals that can be handled as audio, or to out-
put LFO/PULSE/envelope signals that can be handled as CV signals. OUTPUT 1 and 2
are completely independent, and dierent categories can be selected and used for each.
Button 1 (button 3): explanations of each parameter
Button#/NAME Pop Up Enc. Push Enc. Value
1 (3): CATEGORY
CATEGORY ---
Oscillator
LFO
Noise
Pulse
Envelope
VOLUME Vpp ndBu Set Output Level
CYCLE MODE ---
Cont.
1-Shot
Push
INPUT
MONITOR ---
O
Input 1L
Input 1R
Input 2L
Input 2R
Button 2 (button 4): explanations of each parameter
CATEGORY = Oscillator
Button#/NAME Pop Up Enc. Push Enc. Value
2: EDIT
WAVE TYPE --- Sine, Square, Tri, Saw-Rise, Saw-
Fall
PITCH Frequency nNote 0.01–10.00 kHz / C-0 – G9
SHAPE Set shape to 50% 0–100%
PHASE Set phase to 0° −180 – +180°
CATEGORY = LFO
Button#/NAME Pop Up Enc. Push Enc. Value
2: EDIT
WAVE TYPE --- Sine, Square, Tri, Saw-Rise, Saw-
Fall
FREQUENCY Frequency nBPM 0.01–10.00 kHz / 0.5–600.0 BPM
DIRECTION Set direction to ± −, ±, +
PHASE Set phase to 0° −180 – +180°
CATEGORY = Noise
Button#/NAME Pop Up Enc. Push Enc. Value
2: EDIT
WAVE TYPE --- White, Pink
TIME Period nBPM 1 ms–10.0 s / 0.5–600.0 BPM
--- --- ---
DUTY Set duty to 100% 0–100%
CATEGORY = Pulse
Button#/NAME Pop Up Enc. Push Enc. Value
2: EDIT
WAVE TYPE --- Positive, Negative
TIME Period nBPM 1 ms–10.0 s / 0.5–600.0 BPM
--- --- ---
DUTY Set duty to 50% 0–100%
CATEGORY = Envelope
Button#/NAME Pop Up Enc. Push Enc. Value
2: EDIT
WAVE TYPE --- Linear, Exp.
TIME Period nBPM 1 ms–10.0 s / 0.5–600.0 BPM
SHAPE Set shape to 50% 0–100%
DUTY Set duty to 100% 0–100%
Spectrum analyzer mode (FFT)
Spectrum analyzer mode uses an FFT (fast Fourier transform) function that lets you
monitor the reference waveform along with a frequency spectrogram of the input
signal. is is useful for seeing where the eects of a lter or the changes you make to a
waveform appear in the frequency bands.
Explanations of each parameter
Button#/NAME Pop Up Enc. Push Enc. Value
1: INPUT -- Input mode: ACnDC 1L, 1R, 2L, 2R
2: VERTICAL INPUT 1L Input mode: ACnDC VERTICAL RANGE:
10 mV–10 V/div (10 m,
20m, 50 m, 0.1, 0.2, 0.5, 1,
2, 5, 10)
INPUT 1R
INPUT 2L
INPUT 2R
3: HORIZONTAL Sec/Div --- Time range (50 us–1 s/div)
Position Set position to zero Change center position
FFT
Range
--- FFT max Range
(1k–20kHz)
FFT
Position
--- FFT min Range (0–19 kHz)
4: TRIGGER AUTO,
Rise, Fall
Set trigger level to
zero
Set trigger level:
−5.00V–5.00 V (0.01 V step)
START/STOP - - FFT RUN/STOP
* Buttons 1–4 + value knob (when the popup is shown): edits the popup item.
* START/STOP button: controls the run/stop and single mode standby.

4
Tuner mode (TUNER)
Use the tuner to tune one of the four input signals. Both a horizontal meter and a nee-
dle-type (VU) meter view are available.
DISP: NEEDLE
DISP: METER
You can set the reference pitch to a value other than 440 Hz (this is also called “concert
pitch,” meaning a range from middle C to the A below that). With this function, you
can tune multiple oscillators at the same time by transmitting the same pitch (note) and
adjusting the pitch while monitoring.
Explanations of each parameter
Button#/NAME Pop Up Enc. Push Enc. Value
1: DISP NEEDLE --- ---
METER
2: INPUT
INPUT 1L --- ---
INPUT 1R --- ---
INPUT 2L --- ---
INPUT 2R --- ---
INPUT 1L
INPUT 1R --- ---
INPUT 2L
INPUT 2R --- ---
3: CALIB --- Set CALIB to 440 Hz A4 CALIB (410–480 Hz)
4: SCOPE SCOPE VIEW On, O --- ---
* e vertical range and horizontal range settings for scope view can be congured in
scope mode.
Global mode
Used for conguring the overall unit.
1: Input
Parameter Display Notes
Scope Trigger INPUT 1L, INPUT 1R,
INPUT 2L, INPUT 2R
Congures what is triggered in
scope mode.
INPUT 1L Coupling DC, AC
Sets the coupling for the input
signal. When this is set to AC
mode, the DC signal is cut.
Filter O, On
INPUT 1R Coupling DC, AC
Filter O, On
INPUT 2L Coupling DC, AC
Reduces high-frequency noise
included in the input signal.
Filter O, On
INPUT 2R Coupling DC, AC
Filter O, On
2 : SETTINGS
Parameter Display Notes
Display
Brightness 0, 10, 20, ...80,
90, 100% Sets the display brightness.
O time (USB)
1 min, 5 min,
10 min, 15 min,
innite
Sets how much time elapses before
the display is turned o when the
unit is connected to a USB power
source.
O time (Battery)
1 min, 5 min,
10 min, 15 min,
innite
Sets how much time elapses before
the display is turned o when the
unit is running on battery power.
Popup disp O, On Sets popups (aside from the main
popups) to show or hide.
Scope slow mode Fixed, Scroll
Selects the display method for scope
mode, when“Sec/Div” is set to a unit
of 100 ms or greater.
When this is “Fixed”, the screen is
cleared after the signal is displayed
up to the right edge of the screen,
and the signal begins displaying
again from the left side.
When this is “Scroll”, the signal is
scrolled to the left and displayed once
the display reaches the position set
in “Position”. (To show the signal over
the entire screen, move the“Position”
all the way to the right edge.)
3 : SETTINGS
Parameter Display Notes
Power
Battery Type Alkaline, Ni-MH Selects the battery type.
Auto Power O
(USB)
5 min, 15 min,
30min, 1 hour,
ininiite
Sets the amount of time before
auto power-o is enabled,
when this unit is connected to
a USB power supply.
Auto Power O
(Battery)
5 min, 15 min,
30min, 1 hour,
ininiite
Sets the amount of time before
auto power-o is enabled,
when this unit is operating on
batteries.
Tex t i n boldface indicates the factory default setting.
Specications
Display: 2.8″RGB LCD
Input/Output jacks: INPUT 1, 2 jack (3.5 mm TRS mini phone jack), THRU 1, 2 jack
(3.5mm TRS mini phone jack), OUTPUT 1, 2 jack (3.5mm TS
mini phone jack), USB port (type C)
Power source: USB bus power (500 mA max.) or 2 AAA batteries (2 × alkaline
1.5V or 2 × NiMH 1.2 V)
Current consumption: 400 mA or less
Dimensions (W × D × H): 129 × 78 × 39 mm / 5.08″× 3.07″× 1.54″
Weight: 130 g / 4.59 oz
Included items: USB cable, assembly instructions
Input/output jacks:
INPUT 1, 2 (stereo × 2)
Input impedance: 1MΩ typ.
Maximum input voltage: −10 V to +10 V
THRU 1, 2 (stereo × 2)
OUTPUT 1, 2 (mono × 2)
Output impedance: 47Ω typ.
Maximum output voltage: −5 V to +5 V
Oscilloscope:
Display modes: Single, stereo (INPUT 1L-INPUT 1R, INPUT 1L-INPUT 2L,
INPUT 1R-INPUT 2R, INPUT 2L-INPUT 2R), 4 ch
Vertical 10 mV–10 V/div, switchable between AC/DC modes
Horizontal 50 us–1 s/div
Trigger: auto, rise, fall, single (rise), single (fall)
Function generator:
Waveforms: Oscillator, LFO, Noise, Pulse, Envelope
Frequencies: switchable between 0.01 Hz–10 kHz, Hz, NOTE and BPM modes
Output level: 10 Vpp max, switchable between V/dB modes
FFT:
Input: mono (1L, 1R, 2L, 2R)
Frequency range: 0 Hz–20 kHz
Tuner:
Display modes: needle meter (VU), horizontal meter
Inputs: mono, stereo (INPUT 1L-INPUT 1R, INPUT 2L-INPUT 2R)
Tuning: 12-note equal temperament
Detection range: E0 (20.60 Hz)–G8 (6,272 Hz), when inputting sine waves
Reference pitch range: A4 = 410–480 Hz (1 Hz steps)
Measurement accuracy: ±0.1 cents
* Specications and appearance are subject to change without notice for improvement.