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Your cart is empty.Product Description
High Quality
The shell of the mini balun is made of hard plastic material, strong and durable, not easy to damage, has good performance and a long service life.
Practical
The QRP mini balun is a bidirectional balanced to unbalanced converter, very practical, it's withstand power is 100W SSB, can be used for unbalanced output of sound reinforcement level audio equipment, etc.
Wide Use
The balun has great workmanship, can perfect replacement for the old one, has a wide range use, suitable for outdoor setting and QRP use, very good electronic accessories.
Package List:
- 1 x Mini Balun
Note:
For long‑term outdoor use, the upper and lower covers of the shell must be bonded and sealed with silica gel
Specification:
Item Type: 1:9 Mini Balun
Material: Plastic shell
Use Frequency: HF
Withstand Power: <100W SSB
Interface Type: M
Features: Small size, convenient disassembly and assembly, suitable for outdoor setting and QRP use.
Kevin Eaker
Reviewed in the United States on May 23, 2024
Connectors loose. Opened up and the windings were a mess. I rewound it with good wire.
John Banes
Reviewed in the United States on November 18, 2024
I got the 1:1 for a 10 meter dipole and the SWR is 4:1 or better everywhere, I can’t find a dip at all.Removed the balun and now it dips down to 1.2:1
robert
Reviewed in Canada on January 23, 2024
very poor quality . The PL259 would not fit . also the SO239 was loose and the wires were broken inside the casing . vy2wa,73
Doug Graham
Reviewed in the United States on July 7, 2022
Like most antennae an amateur radio operator can buy, the materials you use make a huge difference in how well you can get your signal out. Manufactured antennae are great, but there's nothing like "rolling your own", and taking pride in seeing just how well it works.This balun/unun/connection is no different. I have my long wire trimmed for use the 10m band (28MHz), using a Yaesu FT-301S on a Mighty Fine Junque 971 portable tuner. Amazingly, I was able to get the SWR all the way down to around 1.5:1. It seems to be working as well as can be expected...then again, I'm only running about 10 watts out.A few tips when using this connector:1. Seal the box itself. While it may not collect water right away, it's far from weather resistant. A dab of silicone sealer will help keep water out.2. CHECK ALL THE CONNECTIONS IN THE BOX BEFORE PUTTING ANY POWER THROUGH THIS. I lucked out with mine, and noticed all the connections were well soldered. A few dabs of hot glue inside had come loose, but those weren't too much of a concern. Another dab of silicone sealer took care of those loose ends. Also, tighten all the nuts and bolts, and SO-239 connectors. They do tend to come loose.3. Altitude is your friend. My long wire is about 20 feet up (between my chimney and my pear tree in my back yard). I would have liked it to be higher, but I can make do.I've yet to make any meaningful long-distance contacts, as 10m isn't very active now. May just have to switch over to 6m, since I've read that band's becoming quite busy. I'll likely leave the long wire as it is, or maybe get another one of these connectors, and cut a 6m long wire antenna, then see if I can work my magic again to get the SWR down.
Ben
Reviewed in the United States on March 25, 2022
The toroid inside the case had three turns on one hemisphere and one on the other. I discarded the wires, wound my own for 1:1 - lots of instructions on the web - and waterproofed the box. Works OK.
Alan Vega
Reviewed in the United States on April 28, 2022
I am using it with a doublet fed with 300 ohm ladder line and works perfectly. I am running 10 watts so I have no idea if it will handle 100 watts. Based on its tiny size, I would be hesitant to pump 100 watts through it as I thinks it would over heat. It is very well made and its size makes it perfect for QRP portable ops. WA6MOW
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