Tag Archives: KX2

CHA MPAS Lite: A proper quick-deployment field antenna

Chameleon Antenna recently sent me a prototype of their latest antenna: the CHA MPAS Lite.

The MPAS Lite is a compact version of their MPAS 2.0 modular antenna system and designed to be even more portable.

Chameleon Antenna is a specialist antenna manufacturer that makes military-grade, field portable antennas that are low-profile and stealthy. Chameleon products are 100% made in the USA and their customers range from amateur radio operators to the armed forces.

Their antennas are not cheap, but they are a prime example when we talk about “you pay for what you get.” In all of my years of evaluating radio products, I’ve never seen better quality field antennas–they’re absolutely top-shelf.

Zeta

I’m currently in my hometown doing a little caregiving for my parents. I’d only planned to be here for a couple of days, but when I saw that the remnants of Hurricane Zeta would pass directly over us with tropical storm force winds and rain, I stuck around to help the folks out.

Zeta struck quite a blow, in fact. No injuries reported, but over 23,000 of us have been without power for over 34+ hours in Catawba county. With saturated grounds, the winds toppled a lot of trees and damaged power lines.

Yesterday, I wanted to take advantage of the power outage and get on the air. I couldn’t really do a POTA activation because I needed to manage things here at my parents’ house. Plus, why not profit from the grid being down and bathe in a noise-free RF space–?

I decided to set it up in their front yard.

CHA MPAS Lite

I had never deployed the MPAS Lite before, so I did a quick scan through the owner’s manual. Although the MPAS Lite (like the MPAS 2.0) can be configured a number of ways, I deployed it as a simple vertical antenna.

Assembly was simple:

Insert the stainless steel spike in the ground,
Attach the counterpoise wire (I unraveled about 25′) to the spike
Screw on the CHA Micro-Hybrid
Screw the 17′ telescoping whip onto the Hybrid-Micro
Extend the whip antenna fully
Connect the supplied coax (with in-line choke) to the Hybrid-Micro
Connect the antenna to the rig

Although I had the Icom IC-705 packed, I wanted to keep things simple by using the Elecraft KX2 I’d also packed since it has a built-in ATU.

Important: the CHA MPAS Lite requires an ATU to get a good match across the bands.

I wasn’t in the mood to ragchew yesterday, but I thought it might be fun to see how easily I could tune the MPAS Lite from 80 meters up.

I checked the Parks On The Air spots page and saw NK8O activating a park in Minnesota in CW:

He was working a bit of a pile-up, but after three calls, he worked me and reported a 559 signal report. Not bad at 5 watts!

I then moved to 40, 18, and 20 meter and called CQ a couple times to see if the Reverse Beacon Network (RBN) could spot me. I like using the RBN to give me a “quick and dirty” signal report. I was very pleased with the bands I tested:

Those dB numbers are quite good for an op running 5 watts into a vertical compromised antenna.

The KX2 very effortlessly got near 1:1 matches on every band I tested.

Of course, after working a few stations in CW and SSB, I tuned to the broadcast bands and enjoyed a little RFI-free SWLing. Noting 13dka’s recent article, I’m thinking on the coast, the MPAS Lite will make for a superb amateur radio and SWLing antenna.

Durability

Although the remnants of Zeta had effectively passed through the area three hours prior, it was still very blustery outside. I was concerned gusts might even be a little too strong for the 17′ whip, but I was wrong. The whip handled the wind gusts with ease and the spike held it in place with no problem.

One of the things I have to watch with my Wolf River Coils TIA vertical is the fact it’s prone to fall in windy conditions and many ops have noted that this can permanently damage the telescoping whip (the weak point in that system).

I’m pretty certain this wouldn’t happen with the Chameleon 17′ whip–it feels very substantial and solid.

Ready to hit the field with the CHA MPAS Lite!

I’m a huge fan of wire antennas because I believe they give me the most “bang-for-buck” in the field, but they’re not always practical to deploy. I like having a good self-supporting antenna option in my tool belt when there are no trees around or when parks don’t allow me to hang antennas in their trees.

I’ve got a park in mind that will make for a good test of the CHA MPAS Lite: it’s a remote game land with no real parking option. I’ll have to activate it on the roadside–an ideal application for the MPAS Lite.

Click here to check out the CHA MPAS Lite.

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Elecraft KX2 3D model tour with Wayne Burdick (N6KR)

Parks On The Air: Finally biting the CW bullet!

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I mentioned in a previous post that one of my Social DX goals was to activate a Parks On The Air (POTA) site in CW (Morse Code).

Mission accomplished!

Yesterday, I mustered up the nerve and drove to the Blue Ridge Parkway (site K-3378 in POTA).

My wife and kids were knee-deep in another project so I planned to go solo until my dog, Hazel, caught wind I was leaving with my radio backpack in-tow. Always ready for a hike or road trip, she jumped in the car the moment I opened the door.

I’ll admit it: I was nervous. I had the same jitters I had the first time I spoke in front of a large crowd.

In the end, though, I really had nothing to fear. The POTA community is a very kind, courteous, cohesive and supportive group of radio operators.

I picked the Blue Ridge Parkway as my first site not only because it’s so convenient to where I live, but it’s also one of the most activated parks in the POTA program. I knew a BRP activation wouldn’t attract a mad pile-up of park hunters because everyone in POTA has this one in the books already.

My full radio kit–including my KX2 transceiver, KXPA100 100W amplifier, two antennas, Heil headset, two battery packs, chargers, and all accessories–is packed in my Red Oxx C-Ruck and always ready for action. I grabbed the full kit, although in truth I only needed the KX2, my CW paddles, coax cable and antenna.

Conditions were rough yesterday. Propagation was pretty good, but there were pop-up thunderstorm everywhere in the region, so the bands were very noisy with constant static crashes. Herein lies one of the great things about CW: you can use a filter width so narrow that it doesn’t affect you as much as it does operating phone.

Because I had limited operating time, I deployed the Wolf River Coils TIA portable antenna. It takes me all of 4 minutes to set up.

I got on 40 meters, started calling “CQ POTA” and the next thing I know I had 13 stations logged.

My nerves dissipated quickly after I logged the first couple of contacts and I was even looking forward to stations answering my call. The operators were also incredibly patient with me and two of them even followed me to higher bands and made contact there.

Hazel the dog staring at my portable logging computer.

Hazel was a bit upset this activation didn’t include a hike, so several times she insisted on “helping” with the logs as I sweated it out!

All-in-all, I logged 17 stations in one hour on three bands using about 10 watts of power.

I deployed my station quickly, and I packed it up quickly. A pop-up thunderstorm, once again, chased me off the air. That’s okay, though, because I was already feeling pretty chuffed about bagging my first CW activation.

If I’m being completely honest here in front of my community of radio enablers, as soon as I arrived back home, I started mentally putting together a super-compact CW activation kit built around an LnR Precision MTR3B transceiver. I’ve always wanted one of these little CW-only transceivers to carry in my EDC bag for impromptu field radio fun, but never could justify it. Until now! 🙂

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A Field Day weekend of rain, shine, battery power, pile-ups, and radio improvisation

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If you’ve been reading the SWLing Post for long, you’ll know that I’m a big fan of portable radio gear. Whether it’s a portable receiver, an SDR, or a ham radio, I believe radios are made to be taken outside––rain or shine; hence I love programs like Parks On The Air (POTA ) and Summits On The Air (SOTA), and I’ve always loved ARRL Field Day.

Of course, this ARRL Field Day was a bit different than years past due to Covid-19––there were more individuals on the air with their own Field Day stations, while there were relatively few clubs on the air. Typically, the opposite is true.

This year I’d planned to operate from the field at various POTA locations in western NC; some contenders were the Blue Ridge Parkway, Pisgah National Forest, and Mount Mitchell State Park. In the past few years, my buddy Vlado (N3CZ) and I––with spouses in tow––hit the field together, but this year he was out of town, and I planned to go solo.

I plotted a few hours of Field Day time at Craggy Gardens on the Blue Ridge Parkway. The night before, I had my antennas and the Elecraft KX2, KXPA100, Heil Pro Headset, and 15 aH LiFePo battery (all packed in my go-packs, of course), in the car and ready to go.

Saturday morning. I woke expecting fairly nice weather: partly cloudy with a chance of showers. Turned out, it was chilly, gusty, with total cloud cover and fairly constant rain. I’ll admit, it dampened my enthusiasm for Craggy, because while it’s a gorgeous site, it’s well above 5000′ ASL, thus the winds up there can be seriously gusty and the weather can turn on a dime.

So, I decided to put up my feet in the shack and operate class 1E, meaning on emergency/battery power.

I started calling CQ at the start of Field Day and, to my surprise, worked a constant pile-up for nearly an hour. Within that fairly short space of time I found I’d already collected about 90 or more stations on 40 meters.

After that, I hunted and pounced for maybe an hour, then took a break; later that night, I operated intensively again for 30 minutes or so. Had I been at a Field Day site, I would have been a much more dedicated operator, but frankly, I’m not even sure I plan to send in my logs. Still, it was fun.

My set up on a damp picnic table at the Craggy Gardens Picnic area.

Sunday morning. The weather was much more pleasant from the get-go, with sun and wind, though thunder showers were in the forecast. Around 11:00 or so, my wife suggested we pack up and head to Craggy Gardens for a little radio fun followed by some lunch and hiking.

We reached the site–it was beautiful, but ominous. Thick fog and Saharan dust (no kidding) covered the site and surrounding mountains. Still, I set up the station and my new Wolf River Coils TIA portable vertical.

My daughter and I deployed the TIA vertical in a matter of 5 minutes.

I think I logged two stations before the misty clouds rolled up all around me; then (remember that change-on-a-dime weather?) a sudden––and torrential––downpour came from nowhere. My wife snagged all she could carry and ran for the car, and I quickly covered my gear with my raincoat and packed everything in my packs as soon as possible. I had to make two trips to the car to pack everything, and needless to say, with my raincoat in the service of my equipment, I was drenched to the skin. I literally looked like I had jumped into a lake with my clothes on. Fortunately my gear––at least, the important gear––was only a bit damp, but internally fine. Herein lies one of the great things about being a pack geek: quality packs tend to be water-resistant, if not fully waterproof.

But. If I’m being completely honest, I’ll admit I was a bit miffed that I got so little radio time before the heavens opened. We knew there would be a risk of bad weather and, frankly, other than the hassle of packing and unpacking, we actually acknowledge the entertainment value of a little WX from time to time. After all, this is the hazard of operating under a wide open sky.

My wife, sensing my disappointment, suggested we go to another site to play a little radio, but at that point I just wasn’t feeling it. What I felt instead was the damp…wringing wet-level damp…and my spirits were dampened. too. I suggested we make our way back.

En route, I saw a sign for the Zebulon B. Vance Birthplace––a historic site that I knew was a POTA entity. I’d completely forgotten about this site, and decided to make a detour so I could scope out the site for a future activation. By now I’d warmed up a bit, and a bit of lunch helped revive my flagging spirits.

Turns out the site’s visitor’s center is closed on Sunday, but the gates are open so the public can enjoy the grounds. We drove up to their covered picnic area, although the cover was now peace of mind only, as the sun was again making an appearance. The setting was…well, ideal. And here I was. How could I not go ahead and activate this POTA site?

Zebulon B. Vance Birthplace (K-6856)

It was windy but warm, and while my wife spread out the packs, lunch cooler, and jackets to dry, I, too, found I was no longer dripping. By the time I set up the Wolf River Coils TIA vertical and my KX2/KXPA100, the togs were fairly dry, and indeed I was quite comfortable again. I hopped back on the air and worked a number of stations in short order, easily logging the ten needed to confirm the park activation.

The Wolf River TIA is outstanding in its field (sorry!)

Later, I discovered that the site was an “All-Time New One” (ATNO) in the POTA system. A bittersweet discovery, in a way, because Field Day is not the best time for POTA hunters to log a new site. Still, I wasn’t even calling CQ with POTA in mind; I just worked Field Day stations and had a great time.

Just as I finished, there was yet another downpour, but as the picnic area where I’d set up was covered, I no longer feared my gear getting soaked. This time, it was a sudden loud clap of thunder that gave me my cue to pack up quickly!

Still, all in all, I was very pleased with my weekend Field Day chase, and it was worth dodging rain storms for it. Sure, I would have loved to play radio at Craggy Gardens for a couple hours, but it was a pleasant surprise to fit in an ATNO activation before the end of the day. I’d have never guessed the Vance site was an ATNO, since it’s so accommodating and accessible. Indeed, I’ve discovered that, at this stage in POTA, most of the sites that haven’t been activated are either newly-incorporated into POTA or are very inaccessible. If you missed me there on Field Day, no worries: I plan to head out there again in the very near future.

Oh, and I did learn one more thing over the weekend: the Wolf River Coils TIA vertical antenna is incredibly easy and speedy to deploy. I’m very pleased with this recent acquisition!

Parkway and parks? I’ll be back soon. My radio’s already packed.

Did you participate in Field Day or put your receivers to the test by trying to log exchanges between stations? Please comment!

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Radio in the field: Two new POTA activations this weekend!

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This past weekend my wife suggested that I do a Parks On The Air (POTA) activation. I think she wanted me out of the house so that she could prepare a birthday and Father’s day surprise with my daughters.

Of course, I happily obliged. My motto in French: “Profitez-en bien!” or “Make the most of it!”

Hazel (our dog) made it crystal clear she wanted to join me as well. She’s a great hiking companion and also watches out for black bears while I operate in the forest!

DuPont State Game Land (K-6902)

I decided to activate the DuPont State Game Land which was about a one hour drive from my house. Not only was it a new park for me, but it was also an ATNO (All-Time New One) for the POTA program.

I arrived onsite around 10:15 AM local and the parking lot for the forest trail heads was already packed.

It was a gorgeous day and this part of the DuPont Forest is well-known as a great mountain biking spot. I was very lucky to find a place to park.

We’re still in full social distancing mode in North Carolina due to Covid-19, so I had no desire to be anywhere near other people. Hazel and I went off-trail and hiked in about 1/4 of a mile to a nice clearing.

I set up the EFT Trail-Friendly end-fed antenna and operated with the Elecraft KX2.

I called for quite some time before I was spotted in the POTA system. After being spotted, I quickly racked up more than the required 10 contacts for the activation to be considered valid.

Although the weather was amazing and my antenna deployment was near-ideal, the bands were rough and unstable, so it was challenging.

Hazel and I packed up, moved out, and made a detour to visit a waterfall near a site I hope to activate in the near future. Here’s a short video:

Kerr Scott State Game Land (K-6918)

Since Sunday, I’ve been visiting my hometown to help my parents with a few projects.

Yesterday, I had a four hour break in the day and decided to, of course, benefit from the beautiful weather and activate another new-to-me site. (Can you tell I’m addicted to POTA?)

I picked the Kerr Scott Game Land because it was “only” a 50 minute, rather scenic, drive.

It was quite easy finding a spot to park. Like most game lands, though, you must be prepared to go through off-road conditions. Part of the driveway into the site was incredibly muddy and definitely required at least all-wheel drive.

I set up my station in the shade and easily deployed the end-fed antenna once again.

Lesson learned

This activation of Kerr Scott Game Land taught me an invaluable lesson: if you don’t have a “spot” of your activation on the POTA site, it’s like you don’t exist.

The POTA spotting network (much like popular DX spotting networks and clusters) is simply amazing. As a POTA hunter, you open the spots page and you’ll see a list of all of the current operators, their park numbers, and frequencies where last heard.

As an activator, your number one priority when you find an available frequency and start calling CQ is to be spotted on the POTA network.

If I have good mobile phone coverage at my site, I self-spot on the network. Within a few seconds of the spot posting, I’ll typically have a pile-up of a few operators trying to reach me.

If I have cell phone service, but no data, I’ll text my good friend Mike (K8RAT) and ask him to spot me on the network.

Kerr Scott, like most game lands, however, had no mobile phone service whatsoever, so I had no way to self-spot. In fact, this particular site was a good 15 minute drive from the nearest cell phone signal.

I called CQ for 30 to 40 minutes on my announced frequency, at the announced time, but not one single op come back to me.

Since I had just driven 50 minutes to reach this site, there was no way I was going to give up so easily. I had already set up my station in the trunk/boot of my car, so I simply secured it, disconnected the antenna and tied it to a tree branch (so it wouldn’t be in the way), and drove 15 minutes to a spot where I could send a quick message to Mike.

When I got back to the Kerr Scott, I hooked up the antenna, made one call, and had a pile-up of five operators I worked in rapid succession. In fact, I had my required 10 contacts within 8 minutes.

I do wonder how some of the most adventurous POTA activators manage to post spots while in remote areas. It’s such a key component of having a successful activation, I wonder if they use a satellite phone or satellite messaging device to text a friend for help. (If you’re a POTA or SOTA activator, I’d welcome your comments here!)

At any rate, I was very pleased to hammer out an activation so effortlessly once I was spotted on the network.

The CW secret weapon

I should add here that CW activators have a secret weapon that’s incredible effective: the Reverse Beacon Network (RBN).

As a CW operator, the POTA spot system will read your callsign from the RBN as long as you have made an announcement on the POTA website in advance or have already been spotted to the POTA website. All you have to do is set up your station at the site and call CQ: the POTA system will auto-generate an accurate spot for you based on the frequency from the RBN. It’s incredibly effective and more than enough reason for me to think I should start doing CW activations.

I can operate CW–in fact, I routinely make CW contacts in POTA and in other contests. However, I’m not quite brave enough to call CQ from a POTA site and work my way through even a modest pile-up.

I need to practice CW more, and I will!

This week, I also take delivery of my Wolf River Coils TIA antenna. I’m looking forward to having the TIA as an option when I need a self-supporting antenna that’s quick to deploy and can handle up to 100 watts when needed.

Post readers: Did you play radio in the field this weekend? I’d love your comments–especially if you simply took a receiver outdoors to enjoy some noise-free broadcast listening!

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Proper Radio Prepping: Keep a kit that is always ready to hit the field!

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My Red Oxx Micro Manager packed with a full radio field kit

Yesterday, my family packed a picnic lunch and took a drive through Madison County, North Carolina. It was an impromptu trip. Weather was forecast to be pretty miserable that afternoon, but we took the risk because we all wanted to get out of the house for a bit.

Although that morning I had no intention of performing a Parks On The Air (POTA) activation, my family was supportive of fitting in a little radio-activity, so I jumped on the opportunity!

A quick glance at the POTA map and I determined that the Sandy Mush State Game Land (K-6949) was on our travel route. Better yet, the timing worked out to be ideal for a lunch picnic and before most of the rain would move into the area.

Ready for radio adventure

I had no time to prepare, but that didn’t matter because I always have a radio kit packed, fully-charged, and ready for the field.

My Red Oxx Micro Manager EDC pack (mine is an early version without pleated side pockets) holds an Elecraft KX2 field and antenna kit with room to spare (see photo at top of page).

The Micro Manager pack easily accommodates the entire kit

This 20 year old blue stuff sack is dedicated to antenna-hanging. It holds a reel of fishing line and a weight that I use to hang my end-fed antenna in a tree or on my Jackite telescoping fiberglass pole. The sack also accommodates a 10′ coax cable.

The Elecraft KX2 transceiver, EFT Trail-Friendly Antenna, hand mic, CW paddles, C.Crane earphones, and wide variety of connectors and cables all fit in this padded Lowe Pro pack:

The advantage to having a simple, organized radio kit at the ready is that everything inside has its own dedicated space, so there’s no digging or hunting for items when I’m ready to set up and get on the air.

This level of organization also makes it easy to visually inspect the kit–missing items stand out.

Yesterday I parked our car at one of the Sandy Mush Game Land parking areas, deployed my field antenna, and was on the air in a matter of seven minutes at the most.

Technically, this should read “Activator” parking area! (A questionable inside joke for POTA folks!)

We planned for heavy rain showers, so I fed the antenna line through the back of my car so that I could operate from the passenger seat up front.

I also brought my Heil Proset – K2 Boom Headset which not only produces better transmitted audio than the KX2 hand mic, but it frees up my hands to log stations with ease. This is especially important when operating in the front seat of a car!

The great thing about the KX2 is that it’s so compact, it can sit on my clipboard as I operate the radio (although typically I have an elastic strap securing it better). Since all of the KX2 controls are top-mounted, it makes operation a breeze even in winter weather while wearing gloves.

Since I routinely use the KX2 for shortwave radio broadcast listening as well, I know I always have a radio “locked and loaded” and ready to hit the air. My 40/20/10 meter band end-fed antenna works well for the broadcast bands, as long as there is no strong local radio interference (RFI). When I’m faced with noisy conditions, I pack a mag loop antenna as well.

What’s in your radio go-kit?

Having a radio kit stocked and ready to go on a moment’s notice gives me a great sense of security, and not just for recreational ham and shortwave radio listening reasons.

Sometimes I travel in remote areas by car where I’m more than an hour away from the nearest town and where there is no mobile phone coverage.

If my car breaks down, I know I can always deploy my radio kit and get help from the ham radio community in a pinch. Herein lies the power of HF radio!

If you haven’t built a radio go-kit, I’d highly recommend doing so. Although I’m a bit of a pack geek, keep in mind that you don’t need to purchase special packs or bags for the job. Use what you already have first.

I’m plotting a detailed post about the anatomy of an HF radio field kit. In the meantime, I’m very curious how many of you in the SWLing Post community also have a radio kit at the ready–one based on a transceiver or receiver. Please comment!

Better yet, feel free to send me details and photos about your kit and I’ll share them here on the Post!