Learn how you can build high performance portable antennas for POTA, SOTA, Emergency Communications and HOA Deployments during KJ6ER’s Zoom presentation at the January RRRA Meeting.
The Antennas
- PERformer
(Portable, Efficient, Resonant) elevated quarterwave vertical for 40M-6M leveraging a 17’ telescoping whip with two elevated tuned radials 90 degrees apart for some directivity and gain. This portable antenna, with radiation efficiency over 90%, has been in the field for more than five years and is used by thousands of portable antenna enthusiasts around the world for excellent regional and continental communications. The PERformer is KJ6ER’s most popular antenna and is an ARRL® QST Award Winner.
- Challenger
off-center fed halfwave omnidirectional vertical for 20M-6M that leverages a 25’ or 17’ telescoping whip and a 4:1 unun on a tripod with a single linked counterpoise. This portable antenna, with efficiency over 94%, is his newest portable antenna and is an excellent antenna for both continental and global communications.
- Dominator
end-fed halfwave omnidirectional vertical for 17M-10M that leverages a 25’ or 17’ telescoping whip and 49:1 or 56:1 transformer on a tripod with a single linked counterpoise. This portable antenna, with efficiency over 90%, has been in the field for more than two years and is an excellent portable DX antenna for global communications on the upper bands.
- Dominator Vertical Beam
with a parasitic director in front of the driven element for a portable 2-element beam for 17M-10M providing up to 4 dBi forward gain and a 9 dB front-to-back ratio.
About KJ6ER

Greg, an Extra-class amateur radio operator based in Campbell, CA, has been operating HF/UHF/VHF since 1987. He has been especially active since retiring in 2022 after a long career in Silicon Valley technology companies. He always shares his antenna plans for free in PDF-format with the worldwide amateur radio community.