{tab=Giới thiệu}

Dao động ký tương tự Cursor Readout 2 kênh băng tần 20/40/50/60/100 MHz với chức năng, hàm đo và hiển thị các thông số theo kỹ thuật Cursor tạo ra cho dòng dao động ký này một ưu điểm công nghệ vượt trội so với các dòng dao động ký tương tự trước.

{tab=Thông số kỹ thuật}

• Vertical axis
  • Sensitivity: 5mV ~ 20V / DIV, 12 steps in 1-2-5 sequence (x 5 MAG: 1mV / DIV).
  • Sensitivity accuracy: ≤ 3% (x 5 MAG ≤ 5%).
  • Vernier vertical sensitivity: Continuously variable to 1-2.5 or less of panel-indicated value.
  • Rise time: Approx. 17.5nS (x 5 MAG: Approx. 50nS).
  • Input impedance: Approx. 1MΩ / Approx. 25pF.
  • Square wave characteristics: Overshoot: ≤ 5% (at 10m V / DIV range); Other distortions and other ranges: 5% added to the above value.
  • DC balance shift: 5mV ~ 5V / DIV; ±0.5DIV, 1mV ~ 2mV / DIV ±2.0DIV.
  • Linearity: ≤ ±0.1DIV of amplitude change when waveform of 2DIV at graticule center is moved vertically.
  • Vertically modes: CH1:CH2 single channel.
  • DUAL: CH1 and CH2 are displayed simultaneously.
  • ALT or CHOP selectable at any sweep rate.
  • ADD: CH1 + CH2 algebraic addition.
  • Chopping repetition frequency: Approx. 250KHz.
  • Input coupling: AC, GND, DC.
  • Maximum input voltage: 300Vpeak (AC: frequency 1KHZ or lower); When set probe switch at 1:1, the maximum effective readout is 160Vpp (56Vrms at sine wave), or set probe switch at 10:1, the maximum effective readout is 1,600Vpp (560Vrms at sine wave).
  • Common mode rejection ratio: 50:1 or better at 50KHz sinusoidal wave. (When sensitivities of CH1 and CH2 are set equally).
  • Isolation between channels (at 5mV / DIV range): > 1000:1 at 50KHz; > 30:1 at 20MHz / > 30:1 at 40MHz.
  • CH1 signal output: At least 20mV / DIV into a 50Ω termination. Bandwidth is 50Hz to at least 5MHz.
  • CH2 INV BAL: Balanced point variation: ≤ 1DIV (reference at center graticule).
• Triggering
  • Triggering source: CH1, CH2, LINE, EXT.
  • Coupling: AC: 20Hz to full bandwidth.
  • Slope: + / -.
  • Sensitivity: 20Hz ~ 2MHz:0.5DIV, TRIGALT: 2DIV, EXT: 200mV:2 ~ 2Mhz:1.5DIV, TRIGALT: 3DIV, EXT: 800mV; TV: Sync pulse more than 1DIV (EXT: 1V).
  • Triggering modes: Auto; Norm; TV-V; TV-H; (Both TV-V and TV-H synchronize only when the synchronizing signal is negative).
  • EXT triggering signal input:
    • Input impedance: Approx. 1MΩ / approx. 25p.
    • Max. input voltage: 300V (DC + AC peak), AC: Frequency not higher than 1KHz.
• Horizontal axis
  • Frequency bandwidth: DC ~ 20MHZ (x 5 MAG: DC ~ 7MHz) AC coupling: Low limit frequency 10Hz. (With reference to 100KHz, 8DIV, frequency response with -3dB.)
  • Sweep time: 0.2μsec ~ 0.5sec / DIV, 20 steps in 1-2-5 sequence;.
  • Sweep time accuracy: ±3%.
  • Vernier sweep time control: ≤1 / 2.5 of panel - indicated value.
  • Sweep magnification: 10 times.
  • x 10MAG sweep time accuracy: ±5% (20nsec ~ 50nsec are uncalibrated).
  • Linearity: ±3%, x 10MAG: ±5% (20nsec ~ 50nsec are uncalibrated).
  • Position shift caused by x 10MAG: Within 2DIV. at CRT screen center.
• X-Y mode:
  • Sensitivity: Same as vertical axis. (X-axis: CH1 input signal; 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: decreases intensity).
  • Frequency bandwidth: DC ~ 2MHz.
  • Input Impedance: Approx. 47kΩ.
  • Maximum input voltage: 30V (DC + AC peak, AC frequency ≤ 1KHz).
• Calibration voltage
  • Waveform: Positive-going square wave.
  • Frequency: Approx. 1KHz.
  • Duty ratio: Within 48:52.
  • Output voltage: 2Vp-p ±2%.
  • Output impedance: Approx. 1kΩ.
• CRT
  • Type: 6-inch rectangular type, internal graticule.
  • Phosphor: P31.
  • Acceleration voltage: Approx. 2KV.
  • Effective screen size: 8 x 10DIV (1DIV = 10mm (0.39in)).
  • Graticule: Internal.
  • Trace rotation: Provided.