MS135 SuperWire Stealth Bulk 135 feet Wire #18 Stranded ham Radio Amateur PTFE

This is good fine gauge antenna wire. Tough and durable yet easy to work with. I have it in the air on EFHW and EFRW antennas. It is nearly invisible against my woodsy background and so keeps nosy neighbors out of my hobby.

Really nice to work with. The ONLY way they could improve this wire would be with a matte anti-reflective jacket instead of the nice glossy black PTFE that catches the sunlight. That said, once it's been up for a couple of weeks it seems to dull a bit as dust and rain take care of the shiny jacket. It doesn't deteriorate, just collects some dust or pollen and gets less noticeable. I have this running through the back yard from the feed point into the trees; even though I know where the wire is I have a hard time spotting it.

Put it in a loop in the air, decently robust. Appears it will outlast jank speaker wire by 5x. Makes for good EFHW.

I've now made two antennas with this and it does great. Of course it'll only do as well as your antenna build is, but once it's up in the air it disappears pretty well. It's just the right length for a 80m EFHW, or a 40m skywave loop which is what I have over my house.

My first use of this was for an AM radio reception as my radio is in the basement (CCrane 3). I exited the basement through a conduit sleeve that was otherwise unused. I took the far end, wrapped it over a piece of wood, and tossed it up into a tree. The other end snaked back into the basement and attached to the radio's AM antenna screw connection. As an aside, my AM radio has a ground connection which also needed to be established, I simply attached that to a metal electrical surface mounted box. With both the ground and this wire I have *a lot* of AM radio stations. Like I think I literally have every single one now, it's impressive! The wire is hard to see. Time will tell just how tough it is. My install is a little jenky as the tree can move around pulling on the wire, so I need to put enough slack in to make that a non issue.

I am definitely surprised with the quality and strength of this wire. I am using it as-is (not trimmed at all) with a 49:1 unun and it makes a perfect 80M end fed half wave, resonant without tuning on 80, 40, 20, 15, and 10 meter bands. It has been through a few very strong wind storms already without breaking, and since it's a lot lighter than my previous wire (14AWG marine wire) it sags a lot less and of course is much less visible. $50 is a little expensive for 135ft, but the fact that it's high quality and pre-cut to the perfect length makes it worth it for me.

I bought a pack of this wire with the intention of building two nested vertical full-wave delta loops for 20 meters and 15 meters, in my tiny back yard and using the same 30-foot fiberglass center pole. There was more than enough for both loop antennas each fed a short way up one vertical side. It is barely visible, making the central pole appear like a lightweight flagpole to the neighborhood. Each loop performs well with excellent matching to 75 ohm coax with a ferrite line isolator and each easily tolerates 100 watts fed into it. Makes global FT8 contacts easy, mostly on 10 watts from a G90. Love this wire!

I was very interested to checkout this antenna wire as technical details are scarce on the listing. The conductor is 19 strands of tinned copper wire. I measured the resulting conductor at 1.1mm and the OD of the insulation at 1.6mm. This lines up with 18AWG and an insulation thickness of about 0.01" - standard for 600V rated teflon/PTFE wire. The Teflon/PTFE jacket is slightly glossy and is similar to other PTFE insulated wire I have worked with in the past. It disappears into the backdrop once installed. At the current cost of $40 (with free shipping) for 135ft this works out to $0.30 a foot. A good deal. I am happy with it so far. Now we just have to make sure the insulation holds up to UV.