AKTAKOM ACK-3117 four-channel digital storage USB oscilloscope. This is a PC-based unit which is connected to a computer (PC) via USB-port or LPT parallel port. This model is used for a wide range of oscilloscope measurements and allows user to view waveforms using 4 independent channels with 8 bit resolution and sensitivity from 2 mV/div to 10 V/div at the bandwidth from 0 up to 100 MHz. Input resistance is 1 MΩ or 50 Ω.
This USB oscilloscope has a standard triggering system operable in “waiting”, “single” and “auto” modes with regulated trigger level.
Horizontal sweep varies in the wide range and corresponds to 3 main modes of a USB oscilloscope:
real-time mode (sweep range: from 500 ns/div up to 50 ms/div; sample rate: up to 100 MHz)
stroboscopic mode (sweep range: from 25 ns/div up to 200 ns/div; equivalent sample rate: up to 2 GHz)
recorder (paperless, sweep range: 500µs/div up to 50 h/div, sample rate: up to 50 kHz depending on the PC used)