20MHz/4MHz Oscilloscope with Built-in 6-digit FrequencyCounter

 

VERTICAL AXIS

• Sensitivity: 5mV~5V/DIV, 10 steps in 1-2-5 sequence (X5 MAG:1mV/DIV)
• Sensitivity accuracy: ≤3% (×5MAG: ≤5%)
• Vernier vertical sensitivity: continously variable to 1/2.5 orless of panel-indicated value
• Frequency bandwidth:
• DS-20MHz (×5MAG:DC-7MHz)
• DS-40MHz (×5MAG:DC-15MHz)
• AC coupling: Low limit frequency 10Hz. (With reference to100KHz,8DIV.Frequency response with-3Db)
• Rise time: Approx.17.5Ns (×5MAG:Approx.50Ns) / 9.5nS (X5MAG:Approx.25nS)
• Input impedance: Approx. 1M ohm//Approx. 25pF
• Square wave characteristics:
• Overshoot: ≤5%(At 10Mv/DIV range) other distortions and otherranges: 5% added to the above value
• DC balance shift: 5mV~5V/DIV; ±0.5 DIV, 1mV~2mV/DIV±2.0DIV
• Linearity: ?????? ±0.1DIV of amplitude change when waveform of2 DIV at graticule center is moved vertically

VERTICAL MODES

• CH1 single channel.
• CH2 single channel
• DUAL: CH1 and CH2 are displayed ALT or CHOP selectable at anysweep rate.
• ADD: CH1 CH2 algebraic addition.
• Chopping repetition frequency: Approx.250KHz
• Input coupling: AC, GND , DC
• Maximum input voltage: 300V peak (AC: frequency 1KHz or lower)When set probe switch at 1:1, the maximum effective readout is 40Vpp(14Vrms at sine wave); or set probe switch at 10:1, the maximumeffective readout is 400Vpp(140Vrms at sine wave).
• Common mode rejection ratio: 50:1 or better at 50KHz sinusoidalwave.(when sensitivities of CH1 and CH2 are set equally)
• Isolation between channels(at 5Mv/DIV range): ?????? 1000:1 at50 MHz; ?????? 30:1 at 20MHz; ?????? 30:1 at 40MHz
• CH1 signal output: At least 20Mv/DIV into a 50 ohmtermination.
• Bandwidth is 50Hz to at least 5MHz.
• CH2 INV BAL: Balanced point variation: ≤1DIV(Reference atcenter graticule)

  TRIGGERING

• Triggering source: CH1, CH2, LINE, EXT.
• Coupling: AC: 20Hz to full bandwidth
• Slope: /-
• Sensitivity:
• 20Hz-2MHz: 1.0 DIV, TRIG-ALT: 2DIV,EXT:200Mv; 2MHz-20MHz:1.5DIV; 20MHz or higher: 2.0DIV
• TRIG-ALT: 3DIV,EXT:800mv
• TV: Sync pulse more than 1 DIV (EXT:1V)
• Triggering modes:
• AUTO; NORM; TV-V; TV-H.
• (Both TV-V and TV-H synchronize only when the synchronizingsignal is negative)
• EXT triggering signal input:
• Input impedance: Approx:1M ohm//approx.25pF
• Max input voltage: 300V(DC AC peak), AC: frequency not higherthan 1KHz.

HORIZIonAL AXIS

• Sweep time: 0.2μSec-0.5Sec/DIV,20Steps in 1-2-5sequence.
• Sweep time accuracy: ±3%
• Vernier sweep time control: ≤1/2.5 of panel-indicatedvalue.
• Sweep magnification: 10 times
• ×10MAG sweep time accuracy:
• ±5%(20nsec-50nsec are uncalibrated)
• Linearity: ±3%,×10MAG: ±5%(20ns and 50ns are uncalibrated)
• Position shift caused by×10MAG: Within 2 DIV, at CRT screencenter.

  X-Y MODE

• Sensitivity: Same as vertical axis. (X-axis:CH1 inputsignal,Y-axis:CH2 input signal)
• Frequency bandwidth: DC to at least 500KHz
• X-Y phase difference: ≤3°at DC-50KHz

  Z AXIS

• Sensitivity: 5Vp-p (positive-going signal decreasesintensity)
• Frequency bandwidth: DC-2MHz
• Input resistance: Approx. 47k ohm
• Maximum input voltage: 30V (DC AC peak, AC frequency≤1KHz)

CALIBEATION VOLTAGE

• Waveform: positive-going square wave
• Frequency: Approx.1KHz
• Output voltage: 2Vp-p ±2%
• Output impedance: Approx.1K ohm

CRT

• Type: 6-inch rectangular type, internal graticule
• Phosphor: P31
• Acceleration voltage: approx 2KV
• Effective screen size: 8x10 DIV(1 DIV=10mm(0.39in))
• Graticule: internal
• Trace rotation: provided

• 20MHz/40MHz Dual Channel
• High Sensitivity 1Mv/DIV
• Z Axis Input
• CH1 Output
• 10 times sweep magnification
• TV Synchronization, X-Y mode
• High luminance, internal graticule
• Japanese electronic encoder, light, handy and reliable
• Fully sealed long live vertical mode switch
• ALT Triggering Function, ,simultaneous observation of twoindependant singals
• Triggering level lock function. Automatic synchronizefunction
• Build-in 6 Digit Frequency Counter