SigDigger for signal analysis
Over on Twitter, @radiotech76 has pointed us at a great video where DragonOS creator Aaron is exploring SigDigger for some signal analysis. SigDigger has also been featured on the RTL-SDR Blog as a useful tool for closer signal inspection or reverse-engineering. A nice feature demonstrated is the full spectrum panoramic spectrum display that allows zooming in/out of the full frequency range of the SDR device connected, check it out:
Learning more about SigDigger, so here’s how I used DragonOS LTS, the RTL-SDR, and SigDigger’s autosquelch feature to begin off-line signal analysis on a Hunter Fan remote’s frequency transmission. I also show one of the strongest features of SigDigger’s panoramic spectrum display, which is being able to zoom it in and out using the mouse wheel to gain better frequency visibility. This also allows user to see the range labels in the overlaid band plans which are hard to see using radios like the HackRF One that cover large chunks of the spectrum. SigDigger is an application you can use when dealing with a signal you do not know much about. In the video I show what’s called “off-line” analysis mode which is where you capture a small chance of the signal using the “Time capture” feature. You can also use “on-line” mode using PSK/FSK/ASK inspectors. Both methods are accessed through the inspection tab.
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[…] digital signal analyzer. It has been discussed on RTL-SDR.com and more recently on Signal Lounge (https://signal-lounge.com/2020/05/05/sigdigger-for-signal-analysis/). It is also included in my own creation, DragonOS […]