DX-WIRE Ultralight UL

¥3,060 - ¥5,433 (Inc. Tax)
¥2,550 - ¥4,527 (Ex. Tax)

NOTE Customers outside the Eu pay the lower (Ex. Tax) prices!

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SKU:
DXUL-100
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DX-WIRE Ultralight UL - Strong Lightweight Antenna Wire

45 metres = 147 ft

100 metres = 328 ft

This stranded antenna wire is supplied to us from Germany. The lightweight load bearing core of the wire is made from Aramid better known by its trade name "Kevlar®". Kevlar is strong and does not stretch. Kevlar is heat-resistant and incombustible. The Kevlar fibres are wrapped with six tinned copper strands of 0.25 mm O.D. The effective surface of the wire is substantially enlarged to an effective skin area of more than 0.5 mm2 in RF applications.

To make the core weatherproof it is coated with a UV-resistant black polyethylene sleeve. With a total diameter of only 1.5 mm (incl. insulation) and a weight of just 4 g/m the tensile-strength of 60 kg (130 lbs) is exceptional. Considering the copper content of 3g/m the weight advantage of the synthetic fibre becomes obvious. DX-Wire UL allows you to make extremely long LW-antennas and Beverages with minimal slack, in a way that is not possible with conventional antenna wires. DX-Wire UL is great for balloon or kite-supported antennas. Its low weight and high break-load makes it most suitable for DX-peditions.

We are often asked how much power can be run using such thin wires. In our experience, in "full-size " antennas they can stand up to 1500 Watts in normal amateur radio duty cycles. For shortened antennas with low impedances and thus high currents, heavier wires should be used.

To protect the thin wire against damage and kinks from wire clips the ends should be strengthened with adhesive lined shrink tubing. This is particularly recommended for permanent and high-safety installations. Therefore we offer suitable shrink tubing as an accessory. Our 6-2mm epoxy-filled tubing is good for this.

Note that if over-tensioned, the internal Kevlar rope can stretch more than the insulation jacket. If this is done at low temperatures the insulation can crack. To avoid this , DX-wire UL should not be stretched more than necessary at low temperatures. The wire is extremely light and has minimum sag, therefore you need only a little force to keep the wire straight . Please note, that DX-WIRE UL is a product " on  the edge "... It is maybe not a product for every purpose .... The wire is extremely light and thin and weather resistant (when not stretched to much at low temperatures ) We could use other insulation material, but the wire would be thicker, heavier or not so uv resistant .... therefore we keep it as it is .....

Specification

  • Aramid core wrapped with six 0.25 mm copper strands (cross section abt. 0.3 mm2),
  • Weather-proof polyethylene (PE) insulation, 1.5 mm O.D.
  • Weight: only 4 grams per metre
  • Breaking-load: 620 N (60 kg or 130 lbs)
  • Velocity factor 0.97

21 Reviews Hide Reviews Show Reviews

  • 5
    DX-Wire Ultralight

    Posted by Rev. John G. Fleischmann on 19th Jul 2019

    Excellent for QRP work. I received the package within a week after ordering- great on all counts. Thank you!

  • 5
    DX-Wire UL

    Posted by Howard on 14th Jul 2019

    Used this for an end fed sloper measuring just shy of 40m, held up by a 12m spiderbeam. The wind made me grateful for every newton of the tensile strength. Nice to work with and amazingly light. Just a bit of care needed to avoid kinking it.

  • 4
    Good product.though tricky to use..one needs to make sure ends are done properly. Ie dont just bare back and solder as otherwise loses the strength of the kevlar.

    Posted by Simon phillips on 18th May 2019

    As above tricky to use but strong so far and thin.not invisable by far..at my qth would be nice in other colours. Ie sky blue. Yes against the sun will look black but otherwise would disappear alot better..ie the reason old fighter planes were painted blueish on underside...

    In use once rolled out this product stays straight, does not try to curl back up..this is very useful in building fan dipoles..

    I would buy again..

  • 5
    Great Antenna Wire

    Posted by Nicholas 2E0GKG on 14th Mar 2019

    I have used the wire for an inverted L antenna and I am impressed with how invisible and strong the wire is.

  • 5
    DX-wire UL

    Posted by Steve Seabrook on 31st Jan 2019

    Virtually unbreakable when used for antennas. It is also almost invisible making it ideal for venues with restrictions or anxious neighbours! The low visual footprint is ideal where I live.

  • 5
    DX-Wire UL

    Posted by Tim B on 10th Oct 2018

    Received my wire quickly, very efficient service. Currently in process of installing/creating my antenna so cannot truly comment of function of the product but physical quality looks as described & expected

  • 5
    DX-WIRE UL

    Posted by darren matthews on 9th Aug 2018

    if you need a light weight and stealth antenna this great to use

  • 5
    DX Wire UL

    Posted by Mike on 4th Jul 2018

    Received the wire but haven't deployed it yet. I am impressed with the insulation. The advertising doesn't emphasize how tough, but smooth it is. Both are important properties when pulling wire through tree tops.

  • 4
    DX-Wire UL

    Posted by Jason on 30th May 2018

    A nice, clean and simple antenna wire which promises to be extremely strong. The cable insulation is somewhat brittle and it is EXTREMELY easy to split it whilst handling the wire so I am not sure exactly how long it will last in use!