RTL SDR for electrical signal acquisition

Johannes wrote 06/16/2019 at 22:27 0 points


For one of my projects I need a cheap way to aquire electrical signals with a sampling rate of 1MHz, just like with an oscilloscope.

Now I thought, RTL SDR dongles should be what I need, except I never used one and I don't know what they are capable of.

Can someone please tell me if I can acquire raw signal data with several RTL SDRs from multiple sources (almost) simultaniously?

Are there ways to synchronize the devices? Trigger events or something?

Thanks in advance!