Files available for download
| Qhansheng Programming by Roger Oakey | Qhansheng (1.6 MB) |
| A paper on Digital Logic and Gates by George KE0QCC | Practice With Two Input Digital Functions (260 KB) |
| BaoFeng Programming | BaoFung (24 KB) |
| Amateur Radio Frequency Propagation (PowerPoint presentation by Jerry VerDuft, ADØA) | Amateur Radio Frequency Propagation.ppt (3.6 MB) |