Instek GDS-840C, 250MHz Bandwidth 2 Channel DSO Digital Storage Oscilloscope. New in Box.

DISPLAY SYSTEM
Display Device	Color (320 x 240) 5.7 inch LCD
Display Contrast	Adjustable
Waveform Display Graticule	8�~10 divisions ( 8 x 12 div, when menu off )
Display Mode	Dot, Vector, Accumulate
VERTICAL SYSTEM
Bandwidth	250MHz
Channels	2
Vertical Resolution	8-Bit
Vertical Sensitivity	2mV/div ~ 5V/div
Vertical Accuracy	�}3%
Rise Time	��1.4ns
Input Coupling	AC�ADC�AGround
Input Impedance	1M�� }2%, ~ 18pF
Polarity	Positive & Negative
Maximum Voltage Between Signal & Common at Input BNC	300V ( DC+AC peak ), CATII
Waveform Signal Process	CH1+CH2�ACH1-CH2�AFFT
Offset Range	2mV/div ~ 50mV/div�F�}0.5V 100mV/div ~ 500mV/div�F�}5V 1V/div ~ 5V/div�F�}50V
BW Limit	20MHz ( -3dB )
HORIZONTAL SYSTEM
Time Base Range	1ns/div ~ 10s/div ; Roll : 250ms/div~10s/div
Time Base Mode	Main�AWindow�AWindow Zoom�ARoll�AX-Y
Time Base Accuracy	�}0.01%
Delay Range	Pre-trigger : 20 div maximum; Post-trigger : 1000 div
SIGNAL ACQUISITION SYSTEM
Real-Time Sample Rate	100MS/s maximum on each channel
Equivalent-Time Sample Rate	25GS/s maximum on each channel
Record Length	125k/CH
Peak Detection	10ns (500ns/div~10s/div)
Acquisition Mode	Sample�APeak Detect�AAverage
Average	2, 4, 8, 16, 32, 64, 128, 256
TRIGGER
Trigger Source	CH1, CH2, Line, Ext
Mode	Auto Level�AAuto�ANormal�ASingle�ATV�ATime Delay�AEvent Delay�AEdge�APulse Width
Coupling	AC, DC, HF, LF, Noise Reject
Sensitivity	DC~30MHz : 0.5div or 5mV 30MHz~150MHz : 1.5div or 15mV 150MHz~250MHz : 2.0div or 20mV
X-Y MODE
X-Axis Input / Y-Axis Input	Channel 1 / Channel 2
Phase Shift	�}3�� at 100kHz
CURSOR & MEASUREMENT
Auto Voltage Measurement	Vpp�CVamp�CVavg�CVrms�CVhi�CVlo�CVmax�CVmin
Auto Time Measurement	Freq, Period, Rise Time, Fall Time, Positive Width, Negative Width, Duty Cycle
Cursor Measurement	Voltage difference between cursors(��V) Time difference between cursors(��T) Frequency difference between cursors(1/��T)
FREQUENCY COUNTER
Readout Resolution	Max. 6 digits
Frequency Range	AC Coupled, 20Hz to rated bandwidth; resolution : 10Hz
Signal Source	All available trigger source except the Video Trigger mode
EXTERNAL TRIGGER
Range	�}15V
Sensitivity	DC~30MHz:~50mV 30~150MHz :~100mV 150MHz~250MHz : ~150mV
Input Impedance	1M��}2%, ~ 18pF
Maximum Input	300V ( DC+AC peak ) , CATII
CONTROL PANEL FUNCTION
AutoSet	"Autoset" can adjust Vertical ( Volt/div ), Horizontal ( Sec/div ) and Trigger level automatically
Save/Recall	Up to 15 sets of measurement conditions can be saved and recalled
Waveform Trace Save/Recall	2 sets of waveform can be saved and recalled
INTERFACE
Standard	USB, RS-232C, Printer Port, Go/NoGo Output
Option	GPIB
POWER SOURCE
	100V ~ 240V, AC 47Hz ~ 63Hz, Auto selection
ACCESSORIES
	User manual x 1 Power Cord x 1 GTP-250A Probe(10:1/1:1) x 2
DIMENSIONS &WEIGHT
	310(W) x 142(H) x 254(D)mm Approx. 4.1kg

GDS-800 Series at 250MHz/150MHz/100MHz/60MHz bandwidth with Color or Monochrome LCD display, are designed and built to meet the demands of a modern Digital Storage Oscilloscope (DSO) in the main stream market today. With 125k points memory and 25GSa/s ET sampling rate per channel, GDS-800 Series provides a good balance of DSO performance in terms of memory length and sampling speed. The easy-to-remember menu tree, the analog-scope-like front panel design, the advanced trigger functions of Pulse Width, TV Line, Event and Time-Delay , and the availability of RS-232C, GPIB, USB and Printer Port, make GDS-800 Series a general purpose product to meet most of the waveform measurement applications in the market.