Open Wire Line Spacers (pack of 10)

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Open Wire Line Spacers

Price is per pack of ten (10) insulators.

***Need heavy duty spreaders? Click here***

Laser cut from acrylic, our open wire line insulators are easy to use. Their unique design holds the wire firmly and makes them so easy to fit.  The supplied insulators will be cut from clear (transparent) acrylic - a material selected for its excellent RF insulation properties. They have been designed for use with our lightweight antenna wire. Line spacing 27.5mm. Making low-loss ladder line is so easy!

We recommend a spacing between the insulators of about 50 cm for feeders that are held under tension. For other feeder configurations you may need the insulators closer together.


1) When attaching the insulators, the feedline must sit in the engraved groove for optimum performance

2) We do not recommend these insulators for use with wires other than our own lightweight wires. These insulators are not suitable for our heavy duty wire or the DX-Wire Ultralight UL wire.

15 Reviews Hide Reviews Show Reviews

  • 5
    Open Wire Line Spacers (pack of 10)

    Posted by Richard Smith on 12th Mar 2020

    I have not yet used these spacers with the Sotabeams lightweight antenna wire but looking at their solid construction, they should do a great job. I will soon be constructing a doublet for the loft.

  • 5
    Open wire line spacers

    Posted by Ride PY2TI on 22nd Nov 2019

    This spacers let me build an open wire line quickly and easily. Perfect for portable operations

  • 1
    Sotabeam Spacers

    Posted by Eric Conner on 4th Sep 2019

    This is not what is advertised. They are all breaking due to stiffness. Even the color is different. HIGHLY DISAPPOINTED ☹️ [Admin - I was sorry to read that our spacers were not suitable for your application. I have refunded your order.]

  • 5
    Used to build a linear loaded dipole

    Posted by Unknown on 12th Apr 2018

    I stuck 2 together (end to end) to enable me to build an 80m and 40m linear loaded dipole, just the job.

  • 5
    Ladder line

    Posted by simon on 21st Feb 2018

    Nice finish, well made and substancial. Using these to make the vertical part of a G7FEK style twin leg Marconi. Spacing is enough to reduce interaction without creating a massive gap.

  • 5
    Spreaders for ladder line

    Posted by Simon on 24th Jan 2018

    Ribbon feeders weren't suitable for my project as I needed a wider spacing. Sourced these from SOTA. Well made laser cut items which fit 1mm hard drawn copper nicely. The impedance is about 600ohm.

  • 5
    Wire Spreaders

    Posted by Ken on 9th Feb 2017

    Just what I was looking for, well done sotabeams

  • 5
    Excellent service

    Posted by The Sage of Milton on 3rd Aug 2015

    I'd been toying with the idea of making my own spacers for a multi-band dipole but by the time I'd got round to sourcing the ingredients I'd spotted the SOTABEAMS site and found these. Just what I was looking for, and at a sensible price. Excellent service. Five stars

  • 5
    Wire Spreaders

    Posted by Unknown on 29th May 2015

    Fantastic product bought to use with folded dipole works a treat there also excellent for open wire feeders

  • 4
    open wire spacers

    Posted by Bruno on 18th Aug 2014

    i have used them for openwire feedline. With the adequat wire they are working great and keep their position firmly. i first used them before with a stiffer kind of wire and i broke two of them when taking them off the wire again - so i suppose they could be a bit stronger, but the problem was without doubt the stiff wire i was using.