This directory contains stuff to help set up a VHF/UHF Reverse Beacon Network node. There is an image of the Raspberry Pi SD card with rtl_hpsdr software located in the "os_images" directory. Look for the file with "donglebox_rpi.zip" in the name. Download that and use an image burning program to put it on a 4GB or larger SD card. Note that there are some other Raspberry Pi images in that folder as well. One is for a GPS-based NTP server, and another for a P25 digital trunking scanner that uses an RTL-SDR.com "dongle" as the receiver. 73, John N8UR