28 Oct
2012
28 Oct
'12
8:22 a.m.
Some guidance regarding Amateur use of circular polarization is given by IARU Region 1 in the VHF Managers Handbook.
IARU-R1 recommend that "Looking into the direction of transmission, helical beam aerials shall have a right-hand thread."
See page 122 - 8.8.5 IARU region 1 Technical Recommendation P.1 at
http://iaru-r1.org/index.php?option=com_remository&Itemid=173&func=s...
73 Trevor M5AKA