User Manual

Operating Manual for UTD2000/3000

Te rm expl an ati on:

FFT resolution:

Nyquis t frequ ency:

Reference waveform

It is defined as factor of samplin

and calculation point. FFT resolution increases

when sampling rate decreases for fixed calculatio

point quantity

Original waveform can not be

reset until using sampling rate of at least 2f for

waveform with the maximum frequency of “f”. It is

also called as Nyquist guideline. “f” refers to Nyquist

frequency and “2f” refers to Nyquist sampling rate

Please refer to waveform stored in nonvolatile

memory (NVM) of digital storage oscillograph or

peripheral U disk with name of RefA and RefB as

follows. Please operate according to followin

steps to call out or close reference waveform

5. Please press REF menu key on the front panel

for 5.7-screen oscillograp

Please press [STORAGE]key and enter into the

second page to select call-out for 7-inc

oscillograph (namely, UTD2000L/2000EX series).

2. Please press [RefA] (RefA reference option) and

select information source then select its position b

rotating multi-purpose knob in upper part of front

panel. 1 10 (or 1 20) can be selected for the

position. Press “call-out” to call out waveform

which is stored inthe position originally after

selecting a certain position such as “1”. Please

plug in U disk if waveform is stored in the U disk

There are 2 options for magnetic disk as follows

DSO/USB; Please press [F2] key and select USB

(The menu can not be activated until plugging in U

disk.) Called out waveform is displayed on the

screen for waveform called out and stored from U

disk. Please press cancel key (F5) Return to

previous menu after waveform call-out

3. To press [RefB] (RefB reference option) and

select

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