Creating a Homemade Portable Raspberry Pi Based RTL-SDR System
Thank you to Giuseppe (IT9YBG) for writing in and sharing with us his homemade portable RTL-SDR system made out of a Raspberry Pi 3, RTL-SDR Blog V3, 5-inch LCD screen, and a Bluetooth keyboard. Giuseppe notes that when running the system from a cell phone power bank, he only got about an hour's worth of battery life. So instead, he runs it from his motorcycle starter battery, which gives a much longer usable battery life.
Of course, if you wanted a more turn-key portable RTL-SDR system, you could look into the Vivid Unit GPSDR (which we reviewed here), or the AIO V2 module for the uConsole.

I was using a RPI Zero W and an SDR. I put the PIs WiFi in hotspot mode and controlled it from my phone. That was a nice portable system that didn’t get any funny looks in public as I scanned the airwaves because the PI and SDR would sit in a bag out of sight well I snooped. 😂
More photos on my blog (here)😀