Description
UNUN 9:1 or 4:1- 3kW ICAS
This is is dual 9:1 and 4:1 UNUN used for popular “non-resonant” length END FED wire antennas or verticals like 27 or 43 feet. You can add your own wire or get the complete product from this link EFLW-3K antennas.
UNUN Features:
- The Trifilar wound with PTFE (Teflon) insulated wire on two stacked 2.9″ (73mm) Ferrite cores for maximum frequency bandwidth.
- SO-239 PTFE (Teflon) connector
- Stainless steel hardware and connecting studs.
- Optional Pole installation plate and hardware for up to 1.75 inches diameter
William Stoops –
Nice construction and works as advertised, every item I have purchased from My Antennas has been great. I now have the 9:1/4:1 UNUN the 75-10 49:1 end fed the 80-10 49:1 end fed, and the CMC-154-3K 1-54MHz common mode choke and am very satisfied with all.
Matt Cole –
Thomas –
Reliable part of my 80M OCFD, in use every day <K1TWH
Joseph Limposa –
Works Great!!!
Gerald L. –
Well manufactured. High quality.
Denis –
James –
At first I was perplexed. I just could not seem to get it to work. Once I bonded the balun to the tower I was pretty impressed. As usual any antenna work equals dead bands.
Over time I was able to tweak the length and now have it almost flat across most of my favorite bands. I can not comment on 160m. But everything except 6m I have had excellent comments and reports on. 6m I have a large J pole and 10m I have a radial.
Right now I have a slopper. balun at 50′ running out 84′ to a 15′ post in the ground. balun is bonded to the tower. About to add a post and another 100′ of 12 awg wire. YOU MUST GROUND THESE or they don’t work.
All in all I would give it 5 stars. Excellent construction. Good materials and performance. Very happy and makes the Mrs very happy. I have to listen quite a bit about my colleges antenna farms. KC3SNR 73
Tim –
Great UNUN. I’ve tried a few from other companies but they had a tendency to fluctuate my SWR readings even though they were supposedly rated for higher wattage than what I was using. This MyAntennas 9:1 & 4:1 has been working flawlessly for over a year now. It is in use every day for hours on end and I’ve experimented with changing the wire, length, and configuration and it works like a champ from 160m-6m. Great item and will probably purchase this or a similar one soon for another antenna project.
VIC M. –