80 to 6 METERS COVERAGE 1500 Watts PEP SSB 350 Watts MAX CW / RTTY/ DIGITAL MODES
Radiator Length – available models from 24′ up to 66′ available
Weight – varies by model
Polarization – Vertical, Horizontal, Sloped
Connector – SO-239 50 ohm
SWR < 1.3:1 or better After tuning in all bands (wide range tuner required)
Bands – from 3.0 MHz to 54 MHz (80 to 6 meters)
Radials or counterpoise – not required
Robert Chestnut (verified owner) –
WOW! This antenna really surprised me! I just got into HF in August of 2024, and didn’t want to sink a lot of money into an antenna. I got this one in the 49′ length and ran it in the attic in a horizontal L configuration. With a 20w Chinese radio, I have made ft8 QSOs all the way to Japan, and into western Europe and Canada to Argentina. Not a single problem with tuning the antenna using the internal tuner of the radio. My first contact was in Puerto Rico (1600+ miles) on SSB, with a 5-9 report. Will probably get the 36′ one for taking in the RV.
Brian Warner (verified owner) –
Short review: Buy one, even two, You won’t be disappointed.
After an 18-year absence, I picked up again in 2024 August. I am space-limited. I started by buying a 21′ telescoping mast, MFJ 80-6m vertical, so total height of about 47 feet. No radials. I really splurged and traded in the IC-718 (an excellent rig) for a step up to the IC-7300 running 100 watts. Performance of the system was discouraging. The first rule to improvement is to get the best possible antenna. I found the Ultimax site while poking around the Internet, read the reviews, and opted for the 49′ Ultimax 100. The difference has been amazing! I’ve been working Europe and Japan on 10-meters from the plains of Colorado, getting 57 to 59 reports. Other bands are doing great as well. I actually have two 100s, one running east-west and the other north-south. In some cases, the difference has been two S-units between them, but it’s not always the same one with the better report. The ends are about 19′ and 10′ for the east-west. The north-south starts at 19′ and then lies on the roof the rest of the way. In a couple of days, it will bet up at 16′ at the far end.
Bud Howard –
These antennas are a terrific solution for my HOA problem!
Sean –
I am new to HAM radio and needed something to get me up and running on HF without having to put a lot of antennas. Based on my limited knowledge I was like many skeptical that this would work as well as it claimed. I was surprised and have been getting 5:9 and 5:8 for signal reports into Europe. I am did go from a 24′ to the 66′ and have been nothing but happy and will be looking at a second one for when I travel. Easy set up and great results.
Martin J –
I admit I was skeptical at first, but this Antenna really works! I have the 49 foot version and was surprised how well it loads 80 and 40 meters, being so short didn’t see that coming. I run 100 feet of coaxial cable and the 1:1 Isolator also from Ultimax, keeps the RF out of my shack. Have also run 500 watts through with no issue on SSB, for carrier and digital modes I generally keep it at 300 watts or so with no issues ever! I recommend getting the longest one you can because the efficiency will be better as you go longer, but do not be put off if you can only do a short length because most of the magic is inside the box and with only 49 feet I am working the world from 6 to 80m
Albert –
I have run this until now in the 24 foot configuration for almost a decade. I run it as a vertical up a jackite pole. it is on the roof of my house and I’ve been running lots of QRP SSB. I like the antenna so much I bought a second one for portable use. i’ve worked all over the world with it on 5 watts SSB. from my house in Central Washington state I have worked Japan long path. Albert has always been fantastic when it comes to support and questions. I am sold on this company and these antennas.
Brian Richman –
This is an outstanding option for space restricted antenna use. I was going to put it in my attic but it is outside now in an inverted V configuration. I am in Texas and am getting QSO’s from the EU, Africa and of course all over North as well as a few from South America. I was surprised it doesn’t even have a connection for a counterpoise wire, but then if it uses the COAX sheath for that it’s Ok. I have a 1:1 UNUN on the shack end. SWR is down to 1.0:1 through my MFJ-949D tuner driven by my IC-7300 at full power both on SSB and digital modes. Nice product.