Category Archives: Field Radio Kits

Field Radio Kits, News, Portable, Solar

Field Radio Kit Gallery: KA4KOE’s FX-4CR Field Kit

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Many thanks to Philip (KA4KOE) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post. Philip writes:

FX-4CR Field Kit Load-Out

by Philip (KA4KOE)

I transitioned from a full power station, consisting of a 100W radio and 40 AH of batteries. These items fit into two (2) Apache 4800 boxes. Solar panels 400W and sundries (including a field computer – Pansonic CF-53 Toughbook) went into 4 duffle bags. The antenna pole is not included, either a 10 or 12M fiberglass telescoping type. After 29 activations, I decided to trim down the setup. Fully laden, the pack weights in at 26 lbs.

Inside the pack

  1. FX-4CR SDR transceiver in a protective Velcro wrap.
  2. 6 AH Bioenno and a Genasun GV-5 controller.
  3. 40-10M EFHW with the unun provided by N9SAB with approximately 65’ silicon jacket 22 AWG wire.
  4. 100W coaxial line choke by N9SAB.
  5. Plastic Jubliee Clips (hose clamps) to secure sections of the pole.
  6. Headset, Morse Key, and PTT switch. The key is a field CWMorse unit.
  7. RigExpert Stick 230 in an electric toothbrush case.
  8. AT-100M automatic QRP antenna tuner.
  9. Tent spikes to support antenna mast.
  10. Percussive tool.
  11. Global Solar 62W surplus military solar panel and cables. Cables not shown.
  12. 25’ Coaxial Cable
  13. Kelty Raven 2500 tactical radio pack.
  14. Short 7’ coax section installs between unun and EFHW (Item 3).
  15. Winder with mini-paracord.

Outside the pack:

16. 12M Spiderbeam pole.
17. Windows Tablet, Getac F110-G3, carried in a separate PC shoulder bag.

I can set up my station in about ½ hour. Putting stuff back in the pack takes about 5 minutes longer; mainly getting the pack re-stuffed correctly. With the solar panel I can essentially run all day if I have good sun.

Philip Neidlinger, KA4KOE

Field Radio Kits, News, Portable, QRP

Field Radio Kit Gallery: PP2PB’s Xiegu X6100 Field Kit

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Many thanks to Pedro (PP2PB) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, check out this post.

Main bag

  • Canvas bag
  • Xiegu X6100 (complete with hand mic, power and usb cable) with aluminium shield
  • Homemade 6Ah Lifepo4 battery
  • Earbuds (an old Zune HD pair, and yes, the Zune HD still works)
  • Aliexpress CW Paddle
  • Coax: 5m RG-316, 2m RG-316 with homemade inline choke, 30cm RG-316 jumper
  • Homemade 2m/60cm Signal Stick “clone” (The X6100 can tune it to 6m, 10m and even 12m bands!)
  • 2x homemade QRP 49:1 UNUN (one 2:14T and one 3:21T) made with FT82-43 toroids
  • 3x plastic S-Biners/Hooks for antennas, coax, etc.
  • SO239 to BNCm and BNCf to BNCf adapters
  • SD card with R1CBU alternative firmware (awesome project runs directly from SD Card without messing with original firmware) –
  • Antenna wire: 26 AWG 20m, 5m, a couple 2-3m counterpoises. And a couple 30cm alligator clip jumper cables.
  • BNC to banana adapter (for any type of improvised antenna)
  • Some generic paracord and velcro for general purpose

Support bag

I have a few generic fiberglass poles for antenna deployment that I fitted with a guying system made of paracord: simple, slim, lightweight and strong. And generic tent stakes. I only take them when needed.

This kit is my travel, POTA, SOTA kit. The main bag contains everything needed for operation, and the support bag has a few things to prolong the operating time (on multiple day trips) and for better antenna deployment.

I’m really into DIYing stuff and being from Brazil its hard and expensive to get stuff from USA, so DIY is the way to go.

The kit is about the size of a FT-857D (just the radio), and weighs less. And I have enough redundancy without getting too bulky or heavy.”

Field Radio Kits, News, Portable, QRP Radios

Field Radio Kit Gallery: VE6JTW’s lightweight SOTA kit

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Many thanks to Jesse (VE6JTW) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post.

VE6JTW’s lightweight SOTA kit

Good Day Thomas & all readers of QRPer.com,

I was Licensed Late in 2020 and I have been actively doing Summits on the Air since early 2021 here in Alberta, Canada. I started out using a Xiegu G90 but realised very quickly that CW operations where much more efficient especially in VE6 land where our 4 point summits sometimes have 1000+ meters of gain (3280 feet), your knees get tired fast on those big descents with a pack that can easily start weighing in the 30lb range.

So I started teaching myself CW a few months into activating and also started looking into the QRP world. How awesome is it to make worldwide contacts with 5 watts and a wire from a mountain top, am I right?

VE6VID EFHW

I started activating CW that fall and I have gone through a couple of different radio setups. My first QRP rig was a QRP Labs QCX-mini for 20m which I did not use for long. Then my wife bought me a Venus SW-3B for Christmas and that little rig is excellent in my books; it is very basic but effective. I used that for quite a long time with a trapped EFHW Malen (VE6VID) made for me. It covers 40, 30 and 20m, along with the very last N0SA SOTA paddle ever made by Larry.

Venus SW-3B in a custom enclosure

Fast Forward to 2023 and My SOTA kit contains the LNR Precision MTR-4B. This radio is amazing as the receiver is strong and I can pull callsigns out from the noise very well.  My antenna is still the trapped EFHW, and I now use the Bamakey TP-III paddle. For audio I have a set of JBL headphones for when it is super windy out and I also use an Amazon speaker as seen in the photo. Everything that fits in the bag weighs just 2 pounds and 4 ounces. The bag that holds all the gear is from Colonel Mustard.ca.

The whole kit in use on a summit

My mast is a fiberglass telescoping fishing pole from Amazon with a fishing eyelet at the peak to run the wire through. I lashed some line to the base of the mast with three loops then epoxied them to the fiberglas so they won’t move when guying the mast.

I carry two 1100 MAH 3s 11.1v LIPO batteries and get about 2 really good 30 min activations per battery,  they are both from Amazon.

Last but not least my hiking pack is a Mystery Ranch Bridger 35l.

73 de VE6JTW, Jesse

Field Radio Kits, News, Portable, QRP

Field Kit Gallery: K2EJT’s Utra-Compact Venus SW-3B Field Kit

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Many thanks to Evan (K2EJT) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post. 

K2EJT’s Venus SW-3B Field Kit

by Evan (K2EJT)

I’m big on small.  When it comes to field radios, especially ones I’m going to have to carry any distance, I prefer them to be small and light.  I don’t mind lugging a big heavy rig around if I’m going to be 20 feet from my truck, but if I’m hiking five miles into the woods, I want to measure my kit weight in grams, not pounds.  That’s where this little kit comes in.  Weighing in at only 733g, this kit fits the bill perfectly:

The stuff sack is from Dutchwear Gear.  It’s crazy light, and the entire kit fits in the palm of your hand.  Inside you’ll find everything you need to do a field activation.

The rig is a Venus SW-3B.  I really like this radio, especially for what it costs.  While it’s not as nice a radio as say my MTR-4B, you can get two of them for the price of one LNR radio, and get them in half the time!  The one thing that you need to be careful with on this radio are the rotary encoder and the gain knobs.  They protrude from the face of the radio, and I’m not sure how robust they are. Because I was concerned about how much abuse they’d handle, I 3D printed a set of side rails and a cover for the radio to protect them.

The key is a cwmorse.us N0SA paddle.  I have two of these keys.  One lives in this kit, and the other lives with my KX1.  They’re really nice keys for their size and weight.  There are downsides (like the sides being open), but aside from that I really enjoy sending on them.

As for an antenna, I’m running a Spark Plug Antennas 64:1 EFHW.  The wire is cut for 40, 20, 15, and 10, and is made of 24ga silicone jacketed wire with a tiny plastic clip on the end to attach to the throw line.  I really like this antenna.  It’s a great combination of small size, low weight, and good durability.  It works very well.  In fact, I like it so much I own two.

The coax is 15’ of RG316 from Amazon.  I don’t generally like to drag expensive coax into the woods.  I’ve killed enough of it to know it’s not worth spending a fortune on something that’s likely to get destroyed.

The throw bag and line are the same setup I run with my KX1.  It consists of a ripstop nylon bag with a paracord loop sewn in at the open end, and velcro across the top to close it.  Fill the bag with rocks, close the velcro, and you’re ready to go.  The line is 65’ of high viz, reflective 1.8mm cord.  The throw bag doubles as a stuff sack for the cord when not in use.

The headphones are a set of old Skullcandy earbuds I’ve had forever.  The kit also includes a Rite in the Rain pad and a pencil for logging, the power cable for the rig, and the radio instruction manual.

Powering the whole thing is a set of four AA size LiFePO4 batteries in a 4 cell holder.  The four batteries combined are a little over 13V fully charged, and are about 2600mAh.  They can power this little radio for a LONG time.  I get multiple activations out of a single charge.  I threw a set of Anderson Powerpoles on it to connect to the power cable on the radio.

This is the kit I carry when I want to go light.  As always, I could go lighter, but then I’d have to make compromises I’m not willing to make.  I’ve done plenty of activations with this kit, and it never lets me down.  You can see a description of the kit here:

And the kit in use here:

Gear list:

Evan (K2EJT)

Field Radio Kits, News, Portable, QRP, QRP Radios

Field Radio Kit Gallery: K4VOR’s Elecraft KX1 Go Box

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Many thanks to Scott (K4VOR) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, check out this post.

My KX1 Go Box

by Scott (K4VOR)

I’ve been a ham since college but was out of the hobby for over 20 years, that is until 2020 and COVID. Suddenly I had a lot of free time (like all of us) being stuck at home and somehow the YouTube/Google machine took me down the rabbit hole that is CW.

I got my amateur radio license just after the CW requirement was lifted, so I hardly knew dit from dah. Granted, as an aviator, I had some experience “copying” morse code when tuning navaids such as VORs & DMEs.  A whopping 3 letters sent at a blistering 7 wpm! But other than that, I was as green as it gets. To make a long (3+ year) story short, I dove head-long into that rabbit hole and today I am sending around 25wpm and can head-copy around 20wpm, something I once thought impossible. Anyway, that’s my story, now on to the field kit!

Over the years I acquired several of the more popular QRP radios, such as an IC-705, QCX mini, (tr)uSDX, and the AMAZING Elecraft KX2.

I knew about the KX1 but I never gave it a second thought. I mean, it’s just a piddly little 3W CW only kit-built rig, right? Well, then one day I stumbled upon one of Thomas K4SWL’s activation videos in which he was using his KX1 – Ruby. There was something about the simplicity of it all. A unique specimen of simplicity and elegance – potentiometers for AF gain, RF gain, and filter width, three momentary push buttons and a VFO. Heck, the thing barely has a display – only a 3-digit 7 segment! That basic “stick and rudder” aspect had me intrigued, but the hook for me was the sound!

Thomas describes it as an analog sound, something you might get from an old tube radio. It’s a buttery-smooth, warm resonance – something that is rare these days with modern SDRs and DSPs.

After hearing that sound, the KX1 became my unicorn radio. After over a year of searching, I finally found mine – a meticulously built 3-bander (40/30/20) with the internal ATU. I am happy to share my go-kit built for this rig, some of which was inspired by “Ruby” herself.

The kit contains everything I need to get on the air, all in one Pelican 1060 case.

I will start with the antenna. Nothing fancy. Just a BNC binding post adapter coupled with a 27’ radiator and a 16’ counterpoise. It tunes up nicely using the KX1 internal tuner. 1.0 on 20 and 30 meters and 1.4 or better on 40 meters. The antenna winder is a 3D printer one I designed to easily fit in the Pelican 1060.

For power I am using a TalentCell 12v 3000mAh battery, which will run the KX1 for several hours.

The key is a Palm Radio Pico Paddle (no longer in production), although a K6ARK tiny paddle will rotate in and out from time to time. One day I would like to find a KXPD1 which sadly was not included with my KX1 when I bought it.

For antenna deployment, I have 65’ of “throw line”, a.k.a. masonry/construction twine, and a rip-stop nylon draw-string pouch that I to use as a throw weight by tossing a couple of rocks inside. The throwline stows away inside the nylon pouch along with a dollar store set of earbuds.

Photos: In the field

And that’s it! This has become my go-to kit that I grab whenever I think I might have the chance to play radio when I am out and about. Thanks for reading and I hope to see you on the air!

72 – Scott K4VOR

Field Radio Kits, News, Portable, QRP

Field Kit Gallery: KM4CFT’s Elecraft KX2 Go Kit

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Many thanks to Jonathan (KM4CFT) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, check out this post. Jonathan writes:

Hi Tom,

I thought I would share the two go kits I have [check out the QMX kit here]. I tend to customize my equipment and supplies before I go on a POTA or SOTA outing but I keep these for the rare occasion when I want to grab a radio real quick.

The Elecraft KX2 Go Kit

A bit more standard fare for elecraft KX2 owners. I use this kit the most often since the KX2 is rugged and incredibly well suited for field activations.

The kit contains 2 antennas: a Tufteln 28.5′ speaker wire antenna on a custom designed winder, and the Elecraft AX2 with all the fixings (mini tripod, adapter, bipod).

I keep 2 CW paddles on me: the KXPD2 and a retractable paddle designed by K6ARK.

I have 2 microphones: the Elecraft microphone and a mini microphone designed by K6ARK.

Having multiple options lets me operate in just about any situation/position.

For accessories, I have a cheap pair of earbuds, a power cable, and BNC to SO-239 adapter, 6 feet of coax and a BNC binding post.

Hopefully this information is useful to you and your readers!
-Jonathan KM4CFT

Field Radio Kits, Grab And Go, News, Portable

Field Radio Kit Gallery: K2EJT’s FX-4CR Field Radio Kit

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Many thanks to Evan (K2EJT) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post. Check out Evan’s field kit:

FX-4CR Field Activation Kit

by Evan (K2EJT)

I have a lot of QRP field radios (more than I need and then some).  Some of them are one trick ponies, and some of them can do several things very well. One radio, however, does everything well, and ticks every box for me.  It’s tiny, well built, runs all modes very well, has 20w output, a color waterfall, and doesn’t break the bank.

That radio is the FX-4CR from BG2FX.  Now, before I sing the praises of this little radio, I need you to know that it wasn’t always great.  In fact, when I first got it it was pretty painful to use.  I’m primarily a CW operator, so if a radio is lousy for CW, it doesn’t get used.

This radio was pretty atrocious on CW when I first got it.  Keying was strange.  It would miss dits and dahs.  It had all sorts of popping and artifacts when you sent.  It was fine on receive……but sending was pretty much unusable.  I got it, used it for one activation in May, and then put it away in my gear closet, disgusted at how bad it was for CW.

Fast forward to the August 2023 firmware update, and Yu fixed all of the weird CW bugs, and now I can wholeheartedly sing the praises of this radio.

This kit lives in a Pelican case I’ve had forever.  I forget which model it is (it’s so old the label fell off years ago), but it fits the kit nicely.

Inside the case you’ll find everything you need for a field activation.  Notice I didn’t say a CW activation……ANY activation.

CW?  Absolutely. In fact, with the latest firmware this radio is an absolute pleasure to send on.

SSB?  Heck yeah.  The audio from this radio is very good. The external hand mic is tiny but well built, and the radio even has an internal mic which is quite good as well.

Digital?  Ah….digital.  Now THAT’S what sets this radio apart from pretty much any other QRP field radio out there aside from the IC705.  This thing has a built in sound card, so digital is a breeze.  Wait….you forgot your USB cable you say?  Not a problem, because this thing has Bluetooth digital as well, and it works flawlessly. You’ll notice a cell phone in the pictures.  I run FT8 on that via Bluetooth using an Android application called FT8CN.  All you need is the rig and your phone, and you’re in business.

Aside from the rig itself and the Pelican case, this kit contains the following:

  • Bioenno 3ah battery
  • The hand mic
  • Power cable
  • cwmorse.us key
  • Retractable 3.5mm cable
  • Rite in the Rain notepad for logging
  • Pentel mechanical pencil
  • Weaver 8oz throw weight and 65’ of hi viz reflective cordage
  • 15’ of RG316 coax
  • Spark Plug Antennas EFHW and a homebrew wire for the antenna
  • The user manual
  • My phone for FT8

(Gear links below)

There are also a set of flip down laptop legs on the radio from Amazon to get the viewing angle correct.

Now, this radio isn’t perfect (no radio is).  There are a few things to keep in mind.

First, it’s small, but it’s heavy (530g or almost 19oz).  Second, because it’s a 20w radio and it’s as small as it is, it can get hot…..very hot if you’re running digital.

Third, the firmware update process is a little nerve wracking.  Aside from that, it’s a pretty sweet little radio for $550.  It would be nice if it had an internal battery and a tuner, but I can live without those considering how much functionality is packed into this little rig.

Out of every field radio I own (and as I said, I own a ton), this one is probably the most capable.  It’s amazing for CW (finally), SSB, and digital.  It’s tiny.  It’s 20w.  It isn’t crazy expensive.  If I’m doing anything other than just CW in the field, this is one of the radios I grab most often.  Is it the best radio I own?  No.  Is it awesome for what it is?  Absolutely!

Evan

K2EJT

Gear Links:

Readers: Check out Evan’s YouTube channel for more field radio goodness.

Field Radio Kits, News, Portable, QRP, SOTA

Field Radio Kit Gallery: VE6VID’s KX2 SOTA Kit

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Many thanks to Malen (VE6VID) – Canada’s first SOTA Double Mountain Goat – who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post.

Hello Thomas,

After being prompted by Vince (VE6LK) I am sending in my humble lightweight HF setup. The core of the setup is an Elecraft KX2 with a few goodies bolted onto it.

My station consists of KX2 with tuner, end plates with lexan cover, external 4s LiPo (1100mah) battery, power cable that is fused and has switched diodes (voltage reducer), an Amazon speaker and earbuds, a modified UV5R microphone (I’m an SSB guy for now), and a homebrew 65 ft EFHW. It’s all carried in a large water bottle case by Condor and weighs in at just under 3lbs. That case also fits an Icom IC-705 or the Elecraft KX3.

I have approximately 300 SOTA activations with this along with various masts. These activations range from easy 10 pointer strolls in Arizona and Manitoba to strenuous (over 1000 metres of gain) 4 pointers in the Alberta Rockies along with summits in VE5, VE7 lands tossed in as well.

By using old Altoids tins for storage for earbuds and the mic, everything fits into the case with the antenna laying on top. I ended up doing some trimming of the kite winder to fit with ease on top of the case.

Here is the basic setup laid out.

The battery will last me for two ten to fifteen minute activations without having to switch the diodes out of line.

When solo activating in VE6 land, I use the Amazon external speaker to make noise to let the local four legged critters know I am there.

After a few years of using a dipole on treed summits, which at times can be troublesome to setup, I built a 49:1 EFHW. When using the EFHW I typically set is up as an inverted V with a mast, invert L with trees. The antenna is a homebrew 49:1 using a non-standard size type 43 toroid, SOTAbeams antenna wire 65 ft long, bulkhead male BNC for connecting directly to the radio.

Trying to go compact, not necessarily light, I ditched the Elecraft mic for something with a small footprint, a mic that started life as an UV5R mic / earbud combo from Amazon . By replacing the cable with a Walmart 3.5mm TRS cable and adjusting the menu on the radio, it works great.

Take care,  Malen Vidler, VE6VID

Vince’s notes: Malen is Canada’s first SOTA Double Mountain Goat. You can check out his YouTube channel here. He is soft-spoken and deeply knowledgeable on SOTA and Amateur Radio. He is one of my go-to people when I don’t understand something in these areas.

Field Radio Kits, News, Portable, QRP

Field Radio Kit Gallery: KK4Z’s TR-35 SOTA/POTA Field Kit

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Many thanks to Scott (KK4Z) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post.

Check out Scott’s field kit which he originally posted on his blog:

QRP at Home and SOTA Setup

I posted earlier that I was in a radio doldrum. Today I am slowly drifting back to fair skies and wind at my stern. My friend Thomas K4SWL recently posted on his blog a Field Kit Gallery showcasing operators’ various field kits: https://qrper.com/resources/field-radio-kits/ I thought I would post mine.

This is what I typically bring for a SOTA activation. I also have some general outdoor essentials like an iFAK, bug repellent, a compass, water, and of course snacks. For POTA, I am usually in my camper and bring a full-sized radio like my Elecraft K3/10. I also have an IC-705 which I like for those one-day POTA activations. The kit is pretty simple and gets the job done. Here is a list of components.

Also, I decided to take a break from everything else I have been doing and get on the air. I recently got my K3/10 back from the shop and thought I would give it a good workout at home so I wouldn’t have another calamity like I did a few months ago https://kk4z.com/2023/08/06/calamity-on-black-rock-mountain/. I set the radio up in the shack and started to make contacts. I had forgotten how far 10-watts CW can get you with a good antenna. At the home QTH, I run a 270′ OCF dipole with the apex up about 35′. I was hunting POTA activators and found I could work almost everyone I heard. I got as far north as Ontario, Canada, and as far west as TX, MO, and IA. This was still the morning and there weren’t many activators out yet. The K3/10 worked like a champ and purred like a kitten. Not hearing relays click during QSK CW is sublime. With the K3/10 cleared for field use, I have a couple of outings planned for it.

It feels good to be back in the saddle again. Absence makes the heart grow fonder, and after being away from amateur radio, even for a short while, I appreciate it all the more. 72 de Scott

Field Radio Kits, News, Portable, QRP

Field Radio Kit Gallery: K8ZFJ’s TR-35 SUV Field Kit

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Many thanks to Randy (K8ZFJ) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post. Check out Randy’s field kit:

Penntek TR-35 SUV Field Kit

Hello Thomas,

I built my field kit around the venerable Penntek TR-35, mounted in a Pelican-like case, including the

A single 3S LiPo battery with Anderson Powerpoles powers the TR-35 and keyer. All 53 , Rhode Island POTA parks were activated using no more than 4 watts.

The homebrewed EFHW antennas and feedlines are stored separately in an old camera bag. One End-Fed Half-Wave (40/30/20) uses the SOTAbeams Pico traps , another is a linked 20/17 meter variety. Both use stacked FT50-43 toroids to construct the ununs, mounted on plastic perfboard like winders.

The antennas have been deployed as slopers, supported by a 32′ telescoping fiberglass mast and mounted in wood and PVC holder that slips into the trailer hitch. This approach takes up minimal real-estate, is easy to set up and the operating position is either from the rear hatch or inside the vehicle.

72’s de k8zfj/Randy