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Reviews For: Balun Designs 1:1 Feedline Isolation Balun

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

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Review Summary For : Balun Designs 1:1 Feedline Isolation Balun
Reviews: 43MSRP: 49.95
Description:
1:1 3kw and 6kw baluns providing balanced to unbalanced transition and common mode choking for feedline decoupling
Product is in production
More Info: http://www.balundesigns.com
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
00435
K7JQ Rating: 2021-02-24
Model 1116di...Surprising results! Time Owned: 6 to 12 months.
I use a ground-mounted screwdriver antenna in an antenna restricted community, and run a KW. It's far away from the house, with the coax buried, and presents no more than a 1.6:1 SWR on all adjusted frequencies 10-80M. I never really experienced any common-mode issues/symptoms, but decided to call Bob for his thoughts if it would make any difference. They're not that expensive, so what the heck...I decided on the dual-core 1116di model (optimized for 10-80M) and installed it just outside the wall of my house.

To my surprise, it lowered the already low SWR's on most bands by 0.2 to 0.4:1, and increased the usable bandwidth of an adjusted frequency point on the screwdriver. It now makes my SWR sensitive solid-state amplifier (no tuner involved) much happier, with less need to move the motor on the screwdriver to different frequencies.

Build quality and customer service are top-notch. Highly recommended.
AE7US Rating: 2020-10-07
Measurably Better Time Owned: more than 12 months.
Very happy to add my name to the 5-Star list of satisfied customers.

I live on a small-sized city lot, and my sloping dipole comes down from about 1/2 way up a 125 ft. Douglas Fir. With a 4:1 current balun I was getting an S7 to S8 noise level on 40 meters.

When I replaced the balun I was using with the Balun Designs 1:1 isolation choke feedline balun, the noise level dropped two (2) S-units on 40 meters.

Thank you very much Balun Designs,

Rocky, AE7US



W4LCM Rating: 2019-12-30
Quality and Customer support Time Owned: 3 to 6 months.
Robert J. Rumsey, takes a lot of dedication and time to develop a product of extreme quality and good completion.
If you have doubts or questions, he will offer you the best support and customer service and will guide and advise you to help you solve your problem with pleasure.

Since I discovered their products, I have already bought two 4.1 hybrid baluns and one 1.1.

Another super satisfied customer.

Thanks Bob from
W4LCM
Ramon V Jimenez
from Miami, FL.
N0YXE Rating: 2015-04-07
NOW USING THREE END-FED WIRE ANTENNAS Time Owned: more than 12 months.
I'm running a 36' and a 124.5' end-fed wire antenna on the roof with 100 watts. I'm using a BALUM DESIGNS isolation balum (3,000 watt model) before it reaches the tuner. For another station with a 53' end-fed roof antenna I'm using a 5,000 watt model balum. I've got a 400 watt amp hooked up to it. When I tested the SWR on the various bands with all set-ups, with and without the balum, I found only small SWR differences, but the improvement in sound quality was apparent. All end-fed locations were fed using the top of the line Balum Designs 9:1 unums (5,000 watt version). I used a 50' foot RG-8X coax along the ground as my radial. I have other antennas, but for stealth roof wire antennas, using the Balum Designs products is a pleasure.

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Earlier 5-star review posted by N0YXE on 2014-07-11

I am currently using three Balum Designs isolation chokes. They do a great job and the company stands behind all their products for life.
N9ETB Rating: 2015-03-27
Just What the Dr. Ordered. Time Owned: 0 to 3 months.
I am running the W8AMZ ZS6BKW Dipole. The antenna was fed with 75 feet of RG8X. I was experiencing some high noise levels and some feedback in the audio. I took the advice of some very well versed hams who know antenna theory and design inside and out. They directed me to the Balun Designs site. I purchased the 1113 3KW balun with the coax connectors on each end. I am now able to run 25 feet of RG8X and tune the bands specified by the antenna manufacturer. My noise levels have dropped as well. This is the Balun to use if you're experiencing feedback, noise, tuning issues etc. This Balun has created balance within my system. Thanks Balun Designs. I am a happy customer.
K0PG Rating: 2014-12-29
Big Difference Time Owned: 3 to 6 months.
I am crazy. From time to time I attempt to operate 160 from my third floor shack with a homebrew vertical conglomeration of mast sections, a 6" diameter by 11" long coil of #12 wire and an 8' stinger. There are a few short radials woven through the balcony.
As you can imagine, there were RF issues in the shack and unless you were within shouting distance you wouldn't hear me.
I talked to Bob at Balun Designs. He suggested a the 1115 Max Choke 1:1. No more RF down the feedline and I am able to hear and work stations out about 1,500 miles using 100 watts. This is about as good as it gets for my limited no antenna cliff dweller lifestyle.
K3SX Rating: 2014-11-08
Great product- well made Time Owned: 0 to 3 months.
I ordered the 1:1 isolation balun to help with an issue in the shack. The unit arrived about one week after I ordered it. I am very pleased with its appearance and construction and also its performance.
I did have a question about the shipping and I called the phone number on Saturday and someone answered the phone and addressed my question. You can't ask for more than that!
W9WLW Rating: 2014-03-25
Saved my bacon when I started using an amp Time Owned: 3 to 6 months.
Well built and solved my CMC problem on my OCF dipole. It didn't rear it's ugly head until I started using an amp. I read some of the reviews on this balun and realized I was having the same issue. I bought one and all is well at W9WLW.
KD0BXU Rating: 2014-03-25
Totally Great Time Owned: more than 12 months.
I was having a major problem with RF feed back thru my Elan home audio system speaker system and door bell controller. Called Balun Designs and spoke to Bob who took 20 mins out of his day to talk to me about my problems and how to fix them,..with NO sugestion I purchase any thing from him!! Later I was told he did have #31 core units avail which are not in his catalog. I did purchase some from him and installed them today with fantastic results. Now I can move back into the house with my radios with peace. I had spent over $50.00 on the same things from other suppliers that didn't work.
Thanks Bob. I highly recommend this company, great products and very fair products that actually work!!
VE3VV Rating: 2013-09-14
1116du Time Owned: 0 to 3 months.
Solved the rfi problems on my ocf dipole when using amp. Thanks Bob for a quality product!