| Radio Amateur Club | ||||
| China Amateur Radio Study Club | Short Wave Listener | Electronics Tutorial | ARRL.COM | QSL.NET |
| Astronomy | ||||
| Space Museum HK | Sky Observers' Association | HK Astronomical Society | Astrofram | Wong Sir, How to ATM |
| Entertainment and Media | |||||
| TVB HK | StarEastNet.com | ||||
| Field Days Photo Album | ||||
| 2002May5 | ||||
| HAM Link | |
BD9BL |
SSTV 706 |