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Reviews For: Balun Designs Unun\'s and custom builts

Category: Antenna parts, accessories, incl. baluns, hardware, etc.

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Review Summary For : Balun Designs Unun\'s and custom builts
Reviews: 24MSRP: Quote
Description:
Unbalanced to unbalanced transmission line transformers and custom wound baluns and ununs built by Balun Designs.
Product is in production
More Info: http://www.balundesigns.com
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
00245
WB6YZZ Rating: 2008-11-25
Terrific craftsmenship! Time Owned: 0 to 3 months.
I ordered a 4:1 balun for a vertical antenna. Bob wrote me back saying that after extensive research and talking with manufacturers, they decided that an unun was a better design for that configuration and he had just tested one that he could send me. I got it quick and it is really a well made piece of gear. Too bad we don't have more "made in America" like this! Thanks Bob!
K3GM Rating: 2008-10-30
Functional & nicely made Time Owned: 0 to 3 months.
I purchased a 1.56:1 ratio UNUN from Balun Designs. I was looking to match my 50ohm feedline to my SteppIR BigIR vertical that's sitting on top of a large radial field creating a very low feedpoint impedance. I contacted them on a Saturday after inquiring about the possibility of N connectors instead of SO-239's, and received a "No Problem" reply within an hour. The UNUN was in my hand by Wednesday afternoon. Being inquisitive, the first thing I did was what I do to any new accquisition ... I take it apart! Inside, it's beautifully fabricated. The windings looked like a photo example for a textbook; perfectly spaced and immaculately soldered. The lid of the plastic container has a weatherpoof gasket, and makes a tight seal. Performance-wise it works as good as it looks. I now have a near perfect match, and the N connectors eliminate the need for the adapters I was using on a different manufacturer's UNUN. Good communication, can-do attitude, unbelievable fast service. I highly recommend Balun Designs.
W2BLC Rating: 2008-10-24
High quality Time Owned: 0 to 3 months.
I purchased the 4:1 / 1:1 combination unit for use with my OCF 80-10. The quality is absolutely tops!

Upon opening the box, I noted that everything was where and how it should be. And, NOT hidden with a bunch of potting gunk. Good weather seal and high quality hardware.

Unlike other baluns that have been here, I figure this one will he here for many years. My medium power (800 watts) will not melt or burn-up this balun.

Next OCF I build will get another of these balun combinations.
K2MK Rating: 2008-10-24
75ohm:50ohm transformer great for dipoles Time Owned: 0 to 3 months.
I just purchased a 2KW unun with a 1.5:1 ratio from Balun Designs. I have a 160 meter dipole fed with 50 ohm coax. It had an acceptable SWR at resonance of 1.55:1. It's 2:1 bandwidth was 105 Khz. I have a tube type amp and the manufacturer recommends operating below 2.0:1 SWR. So I thought I might try to increase the bandwidth with a better match between the probable 72 ohm dipole impedance and my 50 ohm feed line.

This 1.5:1 unun fit the bill. It is very light weight and I just attached it to the present Budwig HQ-1 center insulator with a PL259 double male adapter and put my existing RG8 on the 50 ohm side of the unun. To my pleasant surprise, the SWR dropped to 1.05:1 at resonance and the 2:1 bandwidth increased to 160 KHz.

The manufacturer responds quickly to e-mails and shipped this item the same day I ordered. Fit and finish and overall quality look really good. I highly recommend Balun Designs’ products.