Instek GDS-806C 2-Channel Digital Storage Oscilloscope

The Instek GDS-806C is a 2-channel digital storage oscilloscope delivering 60 MHz bandwidth with real-time acquisition at 100 MSa/s per channel and equivalent-time sampling to 25 GSa/s. Built around a 5.7-inch color LCD display, this instrument combines 125k points/channel memory depth with 8-bit vertical resolution and vertical sensitivity from 2 mV/div to 5 V/div, making it suitable for education, research, and industrial troubleshooting across a broad range of signal frequencies and amplitudes.

Technical Specifications Acquisition & Sampling

Real-time sample rate: 100 MSa/s maximum per channel

Equivalent-time sample rate: 25 GSa/s maximum per channel

Record length: 125k points per channel

Peak detection window: 10 ns (at 500 ns/div ~ 10 s/div)

Acquisition modes: Sample, Peak Detect, Average (2, 4, 8, 16, 32, 64, 128, 256) Vertical System

Bandwidth: 60 MHz

Vertical resolution: 8-bit

Sensitivity: 2 mV/div to 5 V/div

Vertical accuracy: ±3%

Input coupling: AC, DC, HF, LF, Noise Reject

Input impedance: 1 MΩ ±2%, ~18 pF

BW limit: 20 MHz (-3 dB)

Maximum input voltage: 300 V DC+AC peak (CATII)

Offset range: 2 mV/div to 50 mV/div Horizontal System

Time base range: 1 ns/div to 10 s/div (1-2-5 increments)

Roll mode: 250 ms/div to 10 s/div

Time base accuracy: 0.01%

Pre-trigger delay: 20 divisions maximum; post-trigger: 1000 divisions

Display modes: Main, Window, Window Zoom, Roll, X-Y Trigger Capabilities

Sources: CH1, CH2, Line, Ext

Modes: Auto Level, Auto, Normal, Single, TV, Edge, Pulse Width, Time Delay, Event Delay

Sensitivity (DC–25 MHz): approximately 0.5 div or 5 mV

Sensitivity (25–60 MHz): approximately 1.5 div or 15 mV Display & Measurement

Display: 5.7-inch color LCD

Graticule: 8 or 10 divisions (8 × 12 div with menu off)

Auto voltage measurements: V, Vpp, average, RMS, high, low, maximum, minimum

Auto time measurements: frequency, period, rise time, fall time, positive width, negative width, duty cycle

Cursor measurements: voltage difference (ΔV), time difference (ΔT), reciprocal frequency (1/ΔT)

X-Y mode phase shift: 3° at 100 kHz

Key Features

Dual-channel configuration with independent vertical control

Wide vertical sensitivity range accommodates signals from millivolt to 50-volt scales

Multiple acquisition modes with frame averaging up to 256

Pre- and post-trigger delay for precise event capture

FFT waveform processing for frequency-domain analysis

Comprehensive triggering suite including pulse width and time delay modes

Typical Applications

Digital and analog circuit verification in design and production

Signal characterization in educational laboratories

Power supply ripple and noise measurement

Clock and timing analysis

Frequency response testing

Compatibility & Integration Standard interfaces enable data transfer and external control integration. X-Y plotting capability supports phase relationship analysis between two channels.