This is a remastered version of Ubuntu Linux. There are 32-bit and 64-bit versions available, as well as an (older) image for the PengPod 1000.
This version contains a lot of amateur radio software including Fldigi, NBEMS, Gpredict, earthtrack, xcwcp and qrq, XLog and cqrlog, flrig and grig, xnec2c, fl_moxgen, aa-analyzer, owx, VOACAP, glfer, Xastir, gqrx, gEDA, GNU Radio Companion, quisk, direwolf, linamc, FreeDV, wsjt-x, Micro-Fox 15 Config, and a TinyTrak3 configuration program.
Version 16 is updated to match Ubuntu 14.01.1 LTS, including updated packet radio software and repairs to VOACAP.
This software collection uses the icewm window manager with menus customized for Amateur Radio use. It is designed to be light weight to run on older computers, while still having modern functionality.
Recommended: 1GHz CPU and 1GB memory at an absolute bare minimum (SDR applications will require more).