1.5-30 MHz Line Isolator Low Band - Coax Dual Core

$ 125.21


1:1 Current Line Insulator, optimized for the low bands

A choke should have a minimum attenuation of least 20 dB, for the suppression of return flows.
See the measuring charts.

This Unun has two 2 cores in a stacked configuration.
Enclosure : Polycarbonate IP67, 100% UV resistant.
SO239 Teflon Connector.

Teflon Coax RG 400.

Frequency, 1.5 to 30 MHz.

Power : 5KW PEP.
All hardware Stainless steel.

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Black Clamp


Name: Cris Simion YO3LW City: Bucharest 29 november 2023 Time: 17:38:26

Great product! No more RFI using my EndFed Antenna. Placed at the output of my Acom 1200S amplifier. My intention is to buy a second one. Thanks Ron!
Nom: Yvon - F8ETK Ville: Villeneve d 13 maart 2021 Time: 20:57:03

Received the 1.5 to 30 Mhz line isolator and as usual with Hyendcompany :
- quickly arrived,
- welly packaged,
- strongly build
- and : efficient without any doubt.

Thank's for your producing so good equipements.
Yes, should receive 10 stars

73 QRO
Name: Agnelo S. Monteiro CT1DVU City: LISBOA 10 december 2020 Time: 15:39:52

Since I installed two of these insulators in my transmission line I never more had comom mode current or RFI at the station located in the restricted space of an apartment tower Building.
(Please, see my QRZ.com page to confirm).

I give it 10 stars * * * * * * * * * *
Name: stephen VK4 IDK City: Brisbane 18 maart 2020 Time: 21:39:39

I have been using the HyEndFed 5 band antenna for a year. After some research, I decided to experiment with a line isolator. Installed it 0.05 λ below the feed point. It has reduced my noise floor by around 2 s points across the bands especially the lower frequencies. Has not affected the SWR to any significant degree, if anything a slight improvement. I can now work stations previously under the QRM. High-quality construction and delivered to Australia in just under 2 weeks.
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