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Balun PCB Balanced to Unbalanced Transformer 49:1 Shortwave Tuning Antenna 5‑35MHz PCB Balun Accessory, Antenna Module

Free shipping on orders over $29.99

$16.90

$ 6 .99 $6.99

In Stock

About this item

  • Simple Setting: Highly portable, the Balun module can be set up as an inverted V, horizontal, tilted or vertical radiator.
  • Works: Comes with a wide frequency range of 5‑35MHz, including 7MHz, 14MHz, 21MHz, 28MHz as well as amateur band.
  • The Using Tips: Use a high voltage capacitor with a specific radiator length on the transformer primary to ensure work.
  • No More Tuning: Designed for working without tuner and to optimize the driving elements for any part of the frequency band.
  • Easy to Install: Light in weight and compact in size, the convenient installation can be quickly completed within minutes.



Product Description

1019220005811-1
YT

Great Material: Made of premium plastic material with pretty colour, not easy to deform and very durable with and long use.

For Your Paper: Designed to have 13mm inner diameter, the spiral binding coil enables smoother page turning for reading and writing.

Large Capacity: Able to clip a large amount of sheets, the binding spine suits perfectly for office, classroom, library and so on.

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1019220005811-2

1019220005811-3

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1019220005811-2

1019220005811-3

Specification:

Item Type: Spiral Binding Coil

Inner Diameter: Approx. 13mm / 0.51in

Type: Stationery accessories binding consumables.

Package List:

20 x Spiral Binding Coil


ck
Reviewed in the United States on April 8, 2025
Decent, especially given the price. Suprisingly happy with how durable it ended up being (dropped a few times). Only issue is if the feedpoint is elevated more than 3-4' off the ground it would have bizarre resonance points, and couldn't get all the target bands to have desirable SWR. However, if fed near the ground with the horizontal sloping up or in a "V" configuration it resonated perfectly.
Daniel P. Zdanowicz
Reviewed in the United States on August 6, 2024
This thing may "look good" but the one I got was nonfunctional out of the box. No matter what length of wire attached my NANO VNA showed the same resonant frequency somewhere down near 12 MHz. A 20M half wave wire resonated at 12 MHz, as well as a 10M half wave wire. Been a ham 62 years... everything looked correct but it did not work for the life of me. Can only guess it was a crap toroid Trash... So I canned it! Now before criticizing me... I put up my TenTenna EFHW antenna in the same configuration and it worked like a charm. So... you tell me. I am telling you... don't buy this Chinese trash. Buy the TenTenna UnUn. You'll be MUCH better off! That's my two cents on the matter. Buyer beware... Just glad I didn't spend more money than I did for it. Lesson learned!
Dave Atwell
Reviewed in the United States on July 11, 2024
Excellent workmanship at a great price
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