Lingid
Antennid
VE2ZAZ - Arrow-Style VHF/UHF Portable Satellite Antenna & KI0AG Microduplexer
WA VHF Group - Helix Calculator
Portable 80m Helical Antenna Project
eQSO & FRN interface-d
QTH määramiseks ja vahemaa määramiseks
qth.map - Find QTH locator or map square autor ES1PUMP
Find your QTH locator (or your grid square) with GoogleMaps
Positsioneerimine
CW
Ionosphere Current Users & MRX Software - taking Morse Code into the 21st Century....