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Reviews Categories | Antenna parts, accessories, incl. baluns, hardware, etc. | Nelson Antennas 9:1 balun Help

Reviews Summary for Nelson Antennas 9:1 balun
Reviews: 2 Average rating: 5.0/5 MSRP: $37.99
An accessory that enables the use of a single wire to
operate as an effective multi-band antenna.
Product is in production.
More info: http://
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KC8PX Rating: 5/5 Nov 4, 2017 14:49 Send this review to a friend
I recently purchased the Nelson 9:1 unun and am VERY SATISFIED!  Time owned: 0 to 3 months
My new antenna consists of the Nelson 9:1, MFJ, RF choke, telescopic HD mast and their lightning surge protector. The wire is 84.5 foot long, in an inverted L configuration. I put it up 8 days ago, and have worked 38 countries on 5 of 6 continents. Still lacking oceania, but not bad for a week! Best DX being Mongolia to the East, and Argentina to the South. My SWR is 160=1.7, 80/75=2.4, 40=2.4,30=1.5, 20=1.6, 17=2.1,15=1.16, 12=1.9, 10=1.7. All bands are very broad. I reside in a restricted neighborhood, and with the tall for trees right next to the "green" mast, no one can see it! So, yes, I am VERY SATISFIED.
NZ5L Rating: 5/5 Jun 4, 2017 15:08 Send this review to a friend
light, compact, and versatile  Time owned: 0 to 3 months
This device is actually an "Un-un", as it has terminals for a wire, counterpoise, and co-ax.
By careful choice of core and windings, a 9:1 impedance transformation is achieved, enabling a single wire of appropriate length to act as an end-fed antenna. In my installation, a 44' piece of wire is usable on 40 and 17 Meters with no tuner at all. Most of the other HF bands are within range of a typical built-in tuner, including 80 meters. For a counterpoise, I used one 30' length of wire on the ground.
The results have been surprising. The performance is comparable to an endfed half-wave type of double the length. In field use, I have been able to make many qsos using a QRP rig of only 4W output. Signal levels are surprising.
This small, lightweight device is ideal for traveling, and also durable and weather sealed. Power rating is 150W, and I have used it with my FT-950 with no problem.
I rate this as an excellent value, and a very useful and clever device, particularly for portable operations.

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