Tag Archives: Marlow 2mm Throw Line

Antennas, Field Reports, Guest Posts, Morse Code, News, Portable, POTA, QRP

A New Skill and Antenna Leads to Success at Wormsloe K-3725

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Many thanks to Teri (KO4WFP) for the following guest post:

A New Skill and Antenna Leads to Success at Wormsloe K-3725

by Teri (KO4WFP)

If you read my field report for Wheeler NWR K-0161, the trap dipole I used vastly outperformed the AX1 that particular day. I originally opted for the AX1 because, for my upcoming trip to Nova Scotia, my family and I will fly so space for ham equipment is limited. But the Wheeler activation convinced me to add an end-fed antenna to my kit for the trip, something several hams recommended. I chose the Tufteln EFRW QRP antenna.

Ham radio has taught me many things, one of them being I tend to procrastinate when I feel intimidated by a project. Case in point – the Pacific Antenna 2040 trap dipole I used in my last activation. My local radio club recommended it for POTA. (They were correct by the way – that antenna works well!) The project sat on my shelf for nine months before I got up the courage to work on it.

The same thing happened when I ordered a Morserino kit. I knew it would be a great learning opportunity due to my limited experience with electronics. Well, it took me three months to get up the courage to tackle that project. So, for whatever reason, getting antennas into trees fell into the same category in my mind. Now, having to use an end-fed antenna for POTA, I needed to learn the skill but had no idea where to begin.

Thankfully Thomas came to the rescue! I found his July 3rd, 2022 post discussing the various iterations of throwing equipment he used and on what he settled. Soon I acquired a Weaver 10 oz. weight, a spool of Marlow 2mm throw line, and a Tom Bihn small travel tray.

I next found Thomas’ Sept. 8th, 2020 post as to how to prepare the line (you tie it to a tree and tug hard on it several times to remove any kinks in the line), flake the line into a cube or bag, tie a slip knot to attach the weight, and then use one of two techniques for launching the line over a branch.

In my HOA, there is a wooded area that offered privacy and the perfect live oak branch, about 15 feet high, for my initial practice session. I opted for what is called the “granny toss”. Heck, if it was good enough for the arborist whose video Thomas featured in his September 8th post, it was good enough for me, no matter how ridiculous it might look. And guess what? Success on the third throw! OK. This skill was not proving to be nearly as daunting as I had assumed.

Now it was time to put this newly-acquired skill to use. Tuesday June 13th, I chose to return to Butter Bean Beach at Wormsloe (K-3725), partially to further my kilo pursuit for this park but also because I knew hams from my local club had used end-fed antennas there.

The drive to Butter Bean Beach from my home is a favorite. I take Ferguson Avenue which has a live oak canopy stretched over the road. The trees are dripping with Spanish moss and look like old Grand Dames swathed in grey boas.

Along the road is Bethesda Academy which used to be an orphanage for boys. The institution was established in 1740 by evangelist George Whitefield. Today Bethesda is a private boarding and day school for boys. The academy has a dairy and I often slow down to look at the cows with their calves in the pastures. You never know what you might see – I’ve actually pulled over to watch a newborn calf take its first steps. (How cool is that!) Today the cows and their calves were lounging in the afternoon shade of one of those Grand Dames. Continue reading A New Skill and Antenna Leads to Success at Wormsloe K-3725 →

Accessories, Antennas, News, Portable

Arborist throw lines: Ideal lengths, weights, and packs for field radio

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Many thanks to Barry (WD4MSM) who writes:

Thomas,

I thoroughly enjoy the website and movies!

Could you answer one question?

How much arborist throw line do you take into the field? 150’ – 100’ – less?

Thanks for taking the time to answer.

Barry WD4MSM

Great question, Barry!

I basically have four variations of throw line kits.

You’ve asked about line lengths, but I’m also asked frequently about the throw weight sizes and throw line bags as well.

First, let’s take a look at my kit variations, then I’ll share my thoughts on throw line lengths, weights, and bags. Note that many of these products are Amazon so there are affiliate links:

Throw Line with folding cube

One is my original Weaver throw line kit made up of two parts:

The line length is 150 feet (45.72 meters).

I tend to use this throw line when I’m doing a POTA activation very close to my vehicle. It’s lightweight, but a bit bulky to take on a long hike.

Compact Arborist Throw Line Kit

This kit is identical to my large folding cube kit above, but the throw weight is 12 oz and I store it in a small Weaver stuff sack.

Continue reading Arborist throw lines: Ideal lengths, weights, and packs for field radio →

Accessories, Antennas, News, POTA, SOTA

The arborist throw line is an invaluable field radio kit tool

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Two days ago, I activated Parc national des Grands-Jardins (VE-0499)–a stunning national park here in the Charlevoix region of Québec, Canada.

As soon as we drove up to the activation site I had researched in advance, I surveyed the picnic area and mentally noted the best spot to deploy an end-fed half-wave using my trusty arborist throw line.

With the throw line’s assistance, I had an antenna deployed within a couple of minutes max.

It hit me then just how invaluable a tool the arborist throw line has become for the types of park and summit activations I do.

Pre-Throw Line Activations

During NPOTA (National Parks On The Air) in 2016, I wasn’t aware of arborist throw lines and had been using some high test monofilament fishing line attached to a weight.

The fishing line was strong enough to support my QRP antennas and I could typically reuse the same length of line for 2-3 activations. Eventually, the line stretches and weakens thus it must be cut off and discarded.

Never again

I’m a big Leave No Trace kind of guy, so am embarrassed to admit that during one activation, my fishing line snagged high up in a tree and left a bundle of broken monofilament in a spot where I could not retrieve it. This was deep in a forest and although I doubt anyone will ever see it, I know it’s there. It bugs me to this day and if I ever sort out a way to remove it, I certainly will.

This occurrence was one of the catalysts for purchasing my first arborist throw line kit.

That throw line kit absolutely revolutionized my antenna deployments by:

  • increasing the speed deployment,
  • increasing accuracy,
  • allowing me to re-use the same line hundreds of times,
  • and being orders of magnitude more reliable and stronger than fishing line.

It changed everything and I’ve never looked back.

Since that first throw line kit (which I’ve lent to a newly-minted active ham), I’ve built four more throw line kits.

Compact Weaver Throw Bag

In early 2021, I purchased a second throw line and 12oz weight (identical to my first) for backpacking along with this compact Weaver Leather throw line storage bag (affiliate links).

I was searching for a more SOTA-friendly/backpack-able solution than the arborist throw line cube.

I was very skeptical about how easily this bag would work in the field. One of the reasons my throw line storage cube works so well is because the opening is large allowing the line to deploy without tangling. Packing up is fast because the line can be flaked back into the cube in a matter of seconds. Continue reading The arborist throw line is an invaluable field radio kit tool →

Field Radio Kits, Grab And Go, News, Portable, POTA, QRP, QRP Radios, SOTA

My new MTR-3B Ultra-Compact Field Kit built in a Tom Bihn HLT2

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I’m a bit obsessed with field radio kits (understatement alert).

If you don’t believe me, check out this episode of the Ham Radio Workbench podcast where they graciously allowed me to geek out about radio packs for a good two hours.

I should also note that I write, in detail, about my packing philosophy in this Anatomy of a Field Radio kit series.

There’s no cure for my pack obsession. I’m constantly in a state of assembling and testing the most efficient kits I can conjure up.

Since I rotate a fair amount of radios in my activations, the majority of my kits are modular; meaning, components like antennas, ATU’s, batteries, log/pen, and cables are packed in their own small pouches/pack. Before embarking on an activation, I simply assemble the components in a backpack along with the radio/s I might use that day. Over the years, I’ve developed a certain workflow with this process that ensures I don’t forget components or pack the wrong ones.

But by far, my favorite type of kit are those that are fully self-contained–proper grab-and-go kits that have everything I need inside to, for example, activate a summit.

Self-Contained Kits

Fully self-contained kits are reserved for the radios I use in the field most because, frankly, they’re stingy resource hogs: they  don’t share components with my other radios or kits. Continue reading My new MTR-3B Ultra-Compact Field Kit built in a Tom Bihn HLT2 →

Field Reports, News, POTA, QRP, Videos

Xiegu X6100: New compact throwline, POTA pileups & overloading in Pisgah National Forest

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On Thursday, January 6, 2022, I woke up with one goal in mind: take the Xiegu X6100 out on a proper hike-in activation!

While I’d had this radio on loan from Radioddity since December 23rd, I hadn’t had an opportunity to truly hike it into an activation site. Between the weather and my tight schedule, I haven’t had an opportunity to plot out a proper Summits On The Air (SOTA) Activation. SOTA activations that involve hiking usually take a much bigger bite out of my day and, lately, I’ve been to busy to plot one.

I do live near a vast trail network, however, and it so happens that much of the trails run through overlapping public lands: Pisgah National Forest and Pisgah State Game Land.

So I packed my Spec-Ops EDC tactical pack, grabbed Hazel’s harness, and headed out the door.

“Let’s go, Daddy!”

Hazel knows me too well.

When she sees my pack and my hiking boots, she  waits in front of the door so there’s no possibility she’ll be left behind. Continue reading Xiegu X6100: New compact throwline, POTA pileups & overloading in Pisgah National Forest →

Grab And Go, News, Portable, QRP, QRP Radios

My QCX-Mini Field Kit

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So I just finished putting together a dedicated, compact field kit for the QCX-Mini. I’m planning to do a SOTA activation tomorrow, if the stars align. Hopefully, they’ll align!

Everything in the photo above, save the throw line bag, fits in my Spec-Ops Brand Op Order Pouch.

QCX-Mini Field Kit Contents:

One of the newest products in this kit is my high viz 2mm x 50M Marlow throw line. I learned about this throw line from Mike (W4MAF)–thank you, Mike! It is much less bulky than standard poly throw line and fits in my Tom Bihn small travel tray. We’ll see how well it works tomorrow. First impressions from having used it at the QTH once was very positive.

Again, with any luck I’ll have this kit in the field tomorrow on a summit. If you’ve nothing better to do, look for me on the SOTA Watch spots page!