Many thanks to Conrad (N2YCH) who shares the following field report:
QRP POTA & SOTA on Killington Peak, Vermont
By Conrad Trautmann (N2YCH)
Peter (K1PCN) and I decided to travel from Connecticut to Vermont to view the solar eclipse that occurred on April 8, 2024.
We got an early start on Sunday morning April 7th to drive to Rutland, Vermont where we stayed overnight. This positioned us well for a short drive the next morning to drive North towards Burlington, where we’d be under the path of totality.
Knowing we’d have some extra time on our hands on Sunday afternoon, Peter planned two park activations. Our first stop was Calvin Coolidge State Park (POTA US-5541 & SOTA W1/GM-002), which encompasses Killington Peak and is also a two-fer with the Appalachian Trail (US-4556). We also activated Gifford Woods State Park (US-3115), which isn’t too far from Killington.
For the trip up the mountain, we “walked-on” the K1 Gondola ski lift to get up most of the way.
From the top of the ski lift, we hiked another 360 feet, up 100 feet in elevation, in the snow, to get to the actual summit at approximately 4,230’ above sea level.
Photo of Peter and me on the summit
Our kits needed to be self-contained and not too heavy for the hike. Peter packed his Icom IC-705 along with a fiberglass mast and an end-fed half wave wire antenna to do a sideband activation. I brought my Elecraft KX-3, 3Ah Bioenno LifPo battery, and the Elecraft AX-1 antenna to do a digital activation. We both activated on 20 meters and were far enough apart that we didn’t interfere with one another. We also tried 17 meters.
After the hike up, we surveyed the area to see where the best spots would be for us to set up. Peter took one side of the summit while I set up on an exposed rock so I wouldn’t be sitting in the snow. Peter wore his ski pants…I, on the other hand, ended up with wet jeans by the end. I’ll re-think my attire the next time I do this. I got the radio equipment right but not the clothing selection. Priorities!
Conrad, N2YCH on the summit of Killington Peak in VermontPeter, K1PCN with EFHW antenna, which you can see if you look very closelyPeter, K1PCN and his radio and antenna
In addition to the HF radios, we both brought our VHF/UHF handhelds to make contact with each other as well as anyone who might be nearby. Peter brought a Baofeng UV-5R and I brought a Kenwood TH-D72. I was lucky enough to complete a QSO with someone who was mobile and driving along US Route 89, which at its closest point to Killington Peak is a solid 20 miles away. I verified that via email with the other ham after the fact. Continue reading SOTA, POTA, and a Total Solar Eclipse Adventure: Conrad and Peter Pack It In!→
Many thanks to Scott (VA3EKR) who shares the following field report:
Apr. 15, 2024, Great Lakes Waterfront Trail Recreation Site (CA-6003)
by Scott (VA3EKR)
Decided to try the other side of the harbour for the activation, in Tannery Park.
For the setup, I picked a picnic table on the north side of Walker Street, as there were larger trees there.
This is the view of the harbour from the picnic table.
The bands were misbehaving, and interestingly, I have never experienced listening to the band go very quiet suddenly, due to the solar flare and the R1 radio blackout that resulted.
I used the trusty QRP-Guys random-wire antenna with 9:1 matching transformer.
Here is a map of the QSOs. The longest distance was to the Czech Republic, 6,970km away. I also pleased at getting some California QSOs, especially using only 10 watts. Three park-to-park QSOs. Orange markers indicate 20m, Turquoise represents 15m, and Red is 17m.
Screenshot
After the activation, I scouted the other side of the park. This is a fairly newly-renovated park, and so I was interested in seeing what they had done with it.
I met a new friend, Pierre, who is retired from IBM, and is very into astronomy. He showed me a very nice image of the sun with sun-spots. He even has a virtual-reality display that allows you to see the images! This was nice, as my recent viewing of the solar eclipse was a complete wash-out.
The Bronte Astronomy Group has public viewings, so I will have to monitor the Facebook page and go out some time to see some nice astronomy images!
The last thing I noticed is that the sculpture they put up, is rusty and tall.
I am hoping that next time I can bring an alligator-clip, a small counterpoise wire, and I can attempt to tune up this and use it as an absurd but fun antenna!
Lately, it’s been a proper challenge to get out and activate.
I’ve had a number of projects that have kept me at home working and when I do head out the door, my timing has been tight. While I love squeezing in park activations when I’m otherwise busy running around town, I also never activate if it’s truly inconvenient.
I’m a big believer in never feeling pressure to activate. Rather, I believe in enjoying the radio journey and therapy.
This is why I don’t pay close attention to my stats in either the POTA (Parks On The Air) or SOTA (Summits On The Air) programs. Maybe when I’m an empty-nester in a few years I’ll spend some time working on my numbers–for the fun of it–but for now, it’s just not in the cards. (Admittedly, when I have more free time, it’ll be fun to achieve my first Mountain Goat award!)
On Monday, April 15, 2024, I planned a trip to my hometown of Hickory, North Carolina, to take my father out to lunch at the airport café.
A 2020 photo from KHKY
If you’ve been a subscriber/reader for long, you’ll know that for the past five years, I’ve spent a lot of time in Hickory doing caregiving for my mother. I would typically spend a night or two in Hickory per week and take her to her frequent oncologist and specialist appointments. .
When she passed away in January, and my sister and her daughter moved in with my father, I no longer had a need to do weekly overnight trips. Indeed–I have no place to stay as the house is full. It’s all worked out really well and now our family trips to Hickory are mostly day trips with my wife, daughters, and Hazel.
It was during those overnight trips that I would fit in park activations–there are a number of parks around Hickory that I would frequent.
Thwarted Rove
I’d plotted a proper POTA rove en route to Hickory on the 15th. I planned to hit a number of parks I used to activate frequently–at least two parks on the way and one or two parks during my return home.
I packed my car with three different radios and a variety of antennas with the idea of using a different pairing at each park.
Twenty minutes into my journey to the first park that morning, I received a call from my daughter’s physician who reminded me that she had an appointment at 2:00 in the afternoon. Doh!
Somehow, that appointment didn’t make it into the family calendar and it was too late to shift it to another date.
I’ll admit: I was bummed.
This dramatically changed my schedule, but I was determined to fit in at least one activation and lunch with my father. As I was driving, I did the mental time math–if I activated Lake James, it would be a very modest detour and I would have an hour or so to play radio. I’d need to pick up my father no later than 10:45 to take him to a (now early) lunch.
This would give me just enough time to get back to the QTH and pick up my daughter no later than 1:30 PM.
I called my father and confirmed it all.
Lake James State Park (US-2739)
I arrived at the Lake James entrance around 8:45 AM. The weather was beautiful and ideal for POTA.
I knew I had about one hour to fit in this activation and I wanted it to be relaxed since the rest of the day would be pretty pressed, time-wise.When I first arrived at the Lake James parking area, I thought I was going to be the only visitor on the site. After hopping out of the car, though, I heard a group of people shouting and then noticed a load of cars and a school bus at the opposite end of the lot.
Turns out, at least two school groups were visiting on a field trip.
I made my way to the lakeshore and picked out a picnic site in the shade and with a nice antenna support (i.e. tree) just waiting to assist in my activation!
I decided to pair my Elecraft KX2 with an end-fed half-wave my buddy Steve (MW0SAW) built for me a couple years ago.
As I started setting up the antenna, a school group, led by one of the park rangers, moved to a site nearby to do some hands-on science. Part of me hoped they might venture past my site and I was ready to tell them all about amateur radio, if asked, but they remained at the same site during my entire activation.
Gear:
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Our friend Alan (W2AEW) just published this excellent short video demonstrating how to quickly tune the Penntek TR-45L’s Z-Match ATU. Of course, this same technique can be applied to the Emtech ZM-2 or any other manual Z-Match tuner:
Day 3 of my spring-break Florida POTA trip began well. Those of you who read my “A Confession from the POTA Babe” article know my personal life has been anything but settled as of late. Two weeks prior to the trip, I experienced a traumatic break with a close friend and partner. I hoped this trip would help me move past that event and began putting my life back together. This was the first morning I woke in two and a half weeks feeling like myself and ready for whatever POTA adventures lay ahead of me.
Day 3 of my spring-break 2024 Florida trip
Participating in the pilot session of CW Innovation’s Comprehensive ICR course in October 2022 introduced me to the concept of a code buddy. A code buddy is someone with whom you have regular CW QSOs, a trusted friend who keeps you active on the air and with whom you grow your skills. I have two code buddies currently – Caryn KD2GUT and Charles W4CLW. Charles and I usually meet Tuesday mornings at 8 AM EDT and I thought why not try to meet up during the trip.
As noted in my article about the first day of this trip, I had to take down the EFRW at my campsite as per park regulations. I pulled out the Chelegance MC-750 as I thought it might stand a better chance than the AX1 with any noise in the campground. As Charles’ QTH was only 232 miles from my campsite, I figured 40 meters would be the only option for us.
I turned on the KX2 and the noise was horrible. However, Charles cleared a frequency and called QRL. He was a 599 on my end but when it was my turn, he could not hear me at all. Oh well. We at least tried.
I figured since I already had my equipment up and running, why not have an impromptu activation?
I spotted myself on the POTA website and began calling CQ. Within 40 minutes, I had a valid activation. Thirty meters gave me four contacts and 20 meters eight contacts including Manuel WP4TZ in Puerto Rico, another member of the Comprehensive ICR course I am currently facilitating with CW Innovations.
I also had one park-to-park QSO with Dave KQ4CW who was activating US-0567 in Virginia. At this point, it was time to pack up my equipment and head south to Cedar Key Scrub Preserve (US-3611).
QSO Map for Manatee Springs 4-2-24 Activation Source: http://tools.adventureradio.de/analyzer/
On the drive southward, I noticed lots of yellow flowers (I think dandelions) along the road as well as wild verbena. I enjoyed the encounters with the natural world I had on this trip. The previous day, I had several different caterpillar species visit me during my activations. They ended up on my clothes as well as my equipment.
During today’s impromptu activation at the campsite, three deer walked through the area. Nature galore!
a tussock moth caterpillara Tent caterpillarpossibly a salt marsh moth caterpillar
Daisy and I arrived at Cedar Key Scrub Preserve (US-3611) around 11:30 AM. It was fairly warm at this hour of the day so I set up in the shade generated by Kai and some overhead trees. I chose to work with the Chelegance MC-750 again.
This activation proved to be a busy one, all on twenty meters. Over the course of 50 minutes, I logged 32 contacts including one DX with Chris F6EAZ in France, a QSO with another team member in my class – Pat K2SCH, and one park-to-park QSO with Jeff KF4VE at US-4857 in Virginia.
At this point, the sun had overtaken Daisy and I. We were beginning to roast so it was time to call QRT.
QSO Map for Cedar Key Scrub Preserve Source: http://tools.adventureradio.de/analyzer/USA Only QSO Map for Cedar Key Scrub Preserve Source: http://tools.adventureradio.de/analyzer/
I had planned to take a walk at Cedar Key Scrub Preserve but due to the warm temperatures and foliage that would not provide much shade, I scrubbed (yes, you can groan) that plan, packed up, and headed further south to Cedar Key.
The town of Cedar Key is made of small islands (called keys) linked together by bridges. We navigated over them to Cedar Key Museum State Park (US-3610).
Unfortunately, the museum was closed for maintenance. But, as I surveyed the site, I saw a shady bench beckoning me.
A QTH with potential!
I set up the Chelegance MC-750, Daisy sprawled out for a nap, and I got down to business.
This activation ran slower than the previous one. I ended up with 25 QSOs on 20 meters in an hour. However, it was pleasant to relax in the shade, enjoy the breeze, and not be in a rush. In fact, after the activation and everything was packed up, Daisy and I relaxed at this spot for a good thirty minutes, soaking in the experience.
On the drive back to my campsite, I received an unexpected call. It was the close friend and partner I thought I had lost several weeks ago. I pulled off to the side of the road. The conversation was a heart-felt and cathartic one.
I had a choice to make. There were three days remaining in my trip and potentially four more parks I could activate toward my 60 new-to-me activation goal. Or I could choose to step through the door that just opened. It didn’t take me long to decide.
This spring-break Florida trip was a productive one. I activated six parks toward my goal, used two antennas with which I was not very familiar, and camped on my own. I also did what I set out to do in my “A Confession from the POTA Babe” article – savor the beauty around me, think, reflect, and be. I cancelled the remainder of the trip to visit this cherished person with the joy of reconciliation.
It doesn’t matter if it is POTA or your personal life; relationships are what matter. This POTA Babe has learned her lesson and has her priorities in the correct order now. Thanks to all of you who continue to share my adventures. They are far from over.
Equipment Used
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Eclipse totality, as seen from US-8785, complete with corona.
My home QTH is located near Tionesta, PA, and the path of the 2024 eclipse put us near, but not in, the path for totality. At home we would have more than 99.5% of the sun’s disc obscured. I will confess that the distinction between 99.5% and totality was lost on me, but Becky was insistent that she wanted to be in the path of totality, because it gives a unique view when the sun’s disc is completely obscured by the moon. At that point, only a halo of the sun’s corona remains visible. Becky was right. It was well worth the effort to get in the path of totality.
My contribution was to find a public area within the path of totality that would not be swarmed by traffic, cars, and people.
The Eclipse Plan
It turned out that we could be within the totality path by driving less than 20 miles from home. We could also do this by driving away from population centers, rather than driving toward them. Places like Erie, PA were expecting tens of thousands of people to visit. I later heard stories of miles-long traffic jams, and hours of delay experienced by Erie pilgrims. I hoped to, and thankfully managed to, avoid that fate.
After identifying that this section of PA State Game Land 086 was in the path for eclipse totality, a satellite view helped to identify open fields for viewing and activating.
I found that portions of Pennsylvania State Game Land 086 (coincidentally also POTA entity US-8785) lay within the totality zone. Using a variety of on-line maps, I was able to find a parking area near the start of a gated Game Land road.
The road passed next to a series of small fields (satellite images are definitely helpful!). Such fields are not uncommon at Game Lands, because it provides the opportunity for hunters to cross paths with rabbits and pheasants, both of which were out-of-season in April. But, those same fields should have an unobstructed view of the sky. So, we headed hopefully toward our selected parking lot, with plans to set up folding chairs (and a portable radio station) in one of the fields, as long as a parking space remained.
The POTA Plan
I had previously activated US-8785, making contacts on only the 40m band. At that time, the goal had been a quick activation during a rove. Lately, I have been working hard to accumulate contacts on 10 bands at multiple parks, inching my way closer to POTA’s N1CC award for making contacts on 10 bands from 10 different parks.
Prior to eclipse day, I had completed contacts on 10 bands from each of seven different parks. While two or three of those contacts were made using VHF FM mode, my preferred method for achieving my goal at a park is to use CW mode and QRP power levels to make contacts on high frequency (HF) bands from 10m to 80m, and to also make CW QRP contacts on 160m (which is technically a medium frequency band).
The challenge with the 160m band (and the 80m band, to some extent) is that it generally works best after sunset. Given that there would be an abnormal sunset occurring at 3:20 pm EDT, might it be possible to get a 160m contact during or near the period of totality? That would be my quest.
So, I picked my equipment to give me the ability to rapidly move between bands. I paired my KX3, with its excellent tuner and 160m to 6m coverage, with my VK160 homebrew 9:1 end-fed random wire (EFRW) antenna. The story of VK160 design and construction and VK160 testing during Winter Field Day 2022 has previously been told in these pages (links provided), but suffice it to say that the radiating wire is 144 ft long.
If the crowds were sparse enough, I hoped to set it up as a shallow inverted V (I normally get a throw line up 30 to 40 ft, which is small in comparison to the antenna’s total length) along the wood line bordering the field. I also brought two Bioenno LiFePO4 batteries that would normally be able to power my station for the large part of a day. I chose battery redundancy, because there would be no opportunity for a re-do.
My operating plan was to make contacts on as many bands as possible. I would start with 10m before the start of the eclipse, and work my way down in frequency, hopefully after making one or more contacts on each successive band. I also needed to manage my time, so that I would get some time on each of the low bands – 60m, 80m, and 160m as the eclipse neared totality. Since I already had contacts from a prior activation, I would not work 40m unless I had completed contacts on the other 9 bands.
Gear
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Eclipse viewing glasses conforming to ISO 12312-2 for direct solar observation
Eclipse Day
My cousin joined Becky and I for the outing to see the eclipse. We all hoped that the afternoon would be memorable. As we drove to our selected location, traffic was unexpectedly light, but the sky was overcast. There had been rain earlier in the morning, but the clouds seemed to be thinning as the day progressed, and we remained hopeful during the drive, particularly as glimpses of blue sky became apparent.
A final stretch on a dirt road brought us to the Game Land parking lot, a cleared patch of gravel, which was… empty!!! It seemed that I had either planned well, or guessed right. Either way, I was happy with the starting point!
We passed out the folding chairs from the back of the truck, shouldered our bags, and started the half-mile walk back the road to find our field. We saw no vehicles and no people on the way in. We did hear a pair of Pileated Woodpeckers drumming on branches near the side of the road, and we saw a Red-tailed Hawk and some Turkey Vultures soaring overhead. It all made for an enjoyable walk, and the clouds continued to thin, with patches of blue emerging as the clouds continued their journey overhead.
Setting Up the Station
Here, I am preparing to throw a line to support the VK160. I selected a tree somewhat distant from my planned operating location, so that apex would be located at about the midpoint of the radiating wire.I used the K4SWL sling method of throwing the arborist line for this deployment. While I am much more accurate using the “granny shot” throwing method, the sling method can get the line consistently higher.I am deploying one of the three radial wires used with the VK160. If you look closely, you can see the antenna feedpoint hanging behind me, level with my hat brim. The cord holding the feedpoint can be seen just above my head.
When we arrived at the field, I scouted out a location for my antenna. A tall tree at the woodline seemed to have a number of great branches high above the ground. I broke out my arborist line, made my throw, and missed. I repeated the process a couple more times, then snagged a light branch just a bit lower than I had hoped, but it would be sufficient.
Unwrapping the antenna (it takes a while to spool out 144 ft of wire) I found that it would stretch across the width of the field, and a bit further along one edge, so up it went in a bent inverted V. A length of 550 cord secured it to a tree branch on the far side of the field, and a bit of light cord held the feed point to a tree branch near my chair. This done, I connected and stretched out three counterpoise wires, connected the RG316 feed line, and started assembling the station.
On the Air
I am preparing for operation. Station equipment is on the clipboard in my lap. The antenna feedpoint can be seen at upper right. The 15 ft RG316 feedline runs downward from the feedpoint, along the ground, and up to my operating position.On the air with the KX3 set for 5 watts CW.Working for a contact on 12m.Continuing to work contacts as the light dims. Chairs for Becky and my cousin are about 100 ft down the field from my operating position.Between contacts I could quickly don my fashionable eclipse glasses to safely monitor progress, as the moon’s shadow progressed across the sun.
I was quickly ready to hit the air. Having scheduled the activation in advance, I was not worried about cell service, but found that I had enough to verify my initial spot, as well as subsequent band changes. As planned, I started on the 10m band. It took some time before my CQ call was returned. After logging it, I called for a bit longer, then switched over to the 12m band, where things took a different turn. Continue reading K3ES’ Eclipse Clean Sweep!→
Day 2 of my spring-break Florida POTA trip began well. The night before, I left the rain fly off one corner of the tent, the one out of which I could look when lying on my Thermarest pad listening to the bird song all around us. There must be something about being outside because I had the soundest and most sleep I’d experienced in several weeks.
someone is not ready to get out of bed yetDay 2 of my April Florida trip
We headed to the Nature Coast State Trail first as I was concerned about the temperature due to the sunny forecast. We found the Old Town trailhead, parked, and walked toward the trail’s bridge over the Suwannee River. Not far from the bridge, I spied a bench with an overhang and thought it would make a great QTH.
Old Town trailhead parking areathe trailflowers along the trailpotential QTH
I had left the Chelegance MC-750 in the car as I wished to work with the AX1 today. It wasn’t long before I had it installed on the Joby Gorillapod ready for 40 meters. I turned on the KX2, put on my earbuds, and was greeted by NOISE, S5-S7 noise.
Well, noise happens and I typically find it on 40 meters than any other band when I activate. Undaunted, I tweaked the AX1 and moved to 30 meters. I found less noise (S3-S4) but no one answered my CQ. Now I was getting worried.
I removed the 40 meter coil from the AX1 and tried 20 meters. Now 20 meters didn’t sound that noisy; however, I had no callers. I found the same on 17 meters. What the heck?
And then I noticed the power lines across the road. How they had escaped my notice I have no idea. They weren’t just your typical power lines but also high-voltage power lines. That had to be the source of the noise. I felt like an idiot not even noticing them. The AX1 is a compromised antenna to begin with and, in those conditions, I don’t think it stood a chance. Note: I later learned the band conditions were not great that morning either.
Deflated, I packed everything up and walked a little ways up the trail to the bridge crossing the Suwanne River. After a few moments to enjoy the view, I headed toward my second park – Fanning Springs State Park. It was but a 5 minute drive from the Old Town trailhead. I began looking for somewhere to set up. Good news – not many power lines.
Suwannee River
I found a grassy field/parking area off to the side and set up there. My riding instructor would always say “Set your horse up for success.” Well, this I thought was a more successful situation for the AX1 (at least I hoped it would be). Once the AX1 was installed on top of my car, I got down to business.
AX1 on top of the car on Joby Gorillapod
I didn’t do well on 40 meters (only one caller in Florida) or 30 meters (no response). I removed the 40 meter coil and set up shop on 20 meters. Would anyone hear me today? YES! Over the next 20 minutes, I logged eight contacts including Dan N0ZT who is in my current Comprehensive ICR class for CW Innovations.
At this point, I only had nine total contacts, not enough for a valid activation. Hearing no more responses to my CQ on 20 meters, I headed to 17. After a while, Craig KC3TRT responded to my CQ. Over the next ten minutes, nine ops had a QSO with me including Raffaele IK4IDF in Italy. Whew – a valid activation.
QSO Map for Fanning Springs State ParkQSO Map (USA contacts) for Fanning Springs State ParkThe springs (as close as we could get as dogs are not allowed near them)
By now I was worn out and decided to regroup back at the campsite. I felt kicked in the keister over the failed activation in the morning. There are five trailheads for the Nature Coast State Trail. Maybe I could find a section without power lines (not likely) and maybe the conditions in the late afternoon/early evening would be better.
After an early supper and a few minutes to read, Daisy and I headed back to the trail for another attempt. Yes, there were power lines (but not high voltage ones) near the trailhead I chose in Chiefland. It was peaceful on this section of the trail. We ambled along until I found another bench like I saw that morning.
AX1 with radials
I opted to sit instead in my Helinox chair on the ground with Daisy to my right and the AX1 to my left. There was thick foliage in front of me as well as a park area that I hoped would provide a buffer from any RFI from the businesses on that side of the trail. I took a breath and called QRL. I picked 20 meters thinking that might be my best bet this time of day, around 6 PM.
Guess what? The AX1 delivered!
I had 18 contacts in 30 minutes including a QRP-to-QRP QSO with Karl K5KHK in New York. I also had one park-to-park QSO with David WN1E at US-0897. I practically floated back to the car and then celebrated with a chocolate-dipped ice cream cone from Dairy Queen.
QSO Map for Nature Coast State TrailWay more ice cream than I needed but it was good!
People don’t talk about the emotional component that comes with morse code. My life has been an emotional rollercoaster as of late and that failed activation felt like another punch in the gut.
You know the ops that I see make the most progress, in general and in the class I facilitate with CW Innovations? Those with determination.
They don’t give up but persevere despite their struggles. Life is really tough for me right now but I have to hang in there as I did with this activation. You never know when success or for what you are waiting will be around the corner.
For day 3, I’ll head south toward Cedar Key. What antenna will I choose to use and how will those activations go? Stay tuned…
Equipment Used
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Many thanks to Joe (N0LSD) who shares the following guest post:
Getting Started with HF Digital Modes – Without Breaking the Bank
by Joe (N0LSD)
Amateur radio can be an expensive hobby: the reasons are myriad, made more difficult for newcomers because they tend to not have the experience to know what their requirements might be. Brick-and-mortar stores where one might bounce ideas off knowledgeable staff, browse the aisles, and walk away with a suitable set-up are pretty few and far between. Similarly, asking on various internet forums will often be met with, “It depends…” –followed by a wall of text filled with jargon and terminology that can be…intimidating.
For newcomers that maybe don’t have the time to invest in learning CW right off the hop, and perhaps get a bit of mic fright, digital modes such as FT8, JS8, and the like tend to be a great fit. While “shack-in-a-box” solutions by the big-name manufacturers offer convenience, this convenience comes at a price that can be cost-prohibitive.
What follows is a QRP digital modes kit that I’ve experimented with over the last year. No single piece of this kit cost more than US$150, and the entire kit can be had for under US$600. What’s more, nearly everything can be purchased from Amazon.
We’ll start with the most expensive part of this kit: the radio, which is the Tr(u)SDX. It can be had on Amazon for US$138, and covers 20m, 30m, 40m, 60m, and 80m bands. It is a quirky little radio with a sub-par speaker and a tiny little microphone.
The Tr(u)SDX is just about as bare-bones as one can get with an HF transceiver, and is decidedly a compromise. However, unlike other ultra-compact transceivers, this one will do CW, it will do voice, and it will do *any* digital mode. It can run on USB power at 1 watt output (micro-USB port on the side of the case); but it can also run on 12v (nominal) power via a 5.5mm x 2.1mm barrel connector on the top of the unit.
I’m powering this radio with a US$43 battery bank (Romoss Sense8P+), and a USB-C to 5.5 x 2.1mm cable (US$8.99) –both available on Amazon. This battery bank will keep the Tr(u)SDX going for hours –long enough to do multiple POTA activations. And, because there’s no special adapters, the battery bank can be re-charged in the same manner as a cell phone –or even off a small solar panel.
The sound card interface is the Digirig (US$57) with a US$19.97 cable that is TRRS 3.5mm on one end, and breaks out separate Mic and Speaker 3.5mm TRS. Now, I will say that a recent firmware revision on the Tr(u)SDX has been demonstrated by the developers of the radio to allow for audio through the micro-USB connector of the radio – so the use of a sound card interface *may* be redundant. However, in viewing the demonstration video for this, it seems rather dependent upon finding the right micro-USB to USB-A cable; with no clear indication on where one can obtain a cable that meets the specification. Now, add a USB-C to USB-A or a USB-C to USB-C cable to interface with the computing device, and we’re in business!
So far we have a radio, power, and a way to get sound in and out of the radio. Now, let’s talk about antennas. Of course, one can homebrew an antenna for the cost of parts and time in construction and testing. For the kit I’m using, I went with the N9SAB OCF Dipole –specifically because I do a lot of 80m QRP work. Also available from N9SAB is a 6m-80m random-wire end-fed for US$89.99 from his eBay store.
If using a non-resonant antenna, an antenna tuner will be needed: I went with the ATX-100 (US$126 from Amazon). The reason I went with this is because it recharges with USB-C, which is consistent with everything else in this kit.
For coax, I personally use Times Microwave LMR-240 –a 50-foot length terminated in BNC is US$65 on Amazon. For something less bulky, perhaps RG-316 from ABR Industries (abrind.com) might fit the bill The ABR-240 coax at 50-feet in length is US$58. For a jumper from the tuner to the radio, I use a 3ft RG316 cable from Amazon – which cost me US$13.99.
All that’s left is a device to run software…this can be a Raspberry Pi, or one’s laptop, certainly –however, these are bulky and require special power…and are a pain to re-charge easily. Another solution is something one might already have: an Android smartphone. There are apps (some free, some paid) for RTTY, PSK31/63, WSPR, SSTV – these have been out for some time. Additionally, one can do many of the modes contained in FLDigi, using the AndFLMsg app (not available on the Play Store –one has to download the .apk file from a 3rd party). However, what I’ve been using –especially on POTA activations – is FT8CN. This allows for full-function FT8 using just an Android phone –which can also be charged via USB-C.
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This kit is –for sure– a compromise: one isn’t going to bust pile-ups or win contests with it However, for a “starter kit” that can easily be carried in a small backpack that can not only be used for HF digital modes, but also can do SSB voice and CW, it will at least get an operator on the air and enjoying the bands –without breaking the bank.
I’ve been thinking about this for a while and finally tried it.
I attached an alligator clip to the AM-801 [window antenna mount] so it could be used to connect a counterpoise. Turns out alligator clips (at least the Mueller version I had lying around) have a toothy clip part at one end and a banana jack or socket at the other end. I didn’t want to go down the Google rabbit hole to find out if this is standard on all alligator clips. The clip also has a 6-32 threaded hole between the two ends so I drilled a clearance hole (using a #28 drill) in the AM-801 near the edge and attached the clip with a stubby 6-32 screw.
My trusty automatic center punch apparently failed to make a significant impression in the AM-801 so my drill bit wandered somewhat and the resulting hole was not exactly where I wanted it but I was still able to connect the alligator clip.
73,
Gordon KF5JWL
Thanks, Gordon! That’s a clever addition to the AM-801. Thank you for sharing it with us.
Many thanks to Bill (KG4FXG) who shares the following guest post:
Return to the Office: Operating portable during coffee breaks (Atlanta to England)
by Bill Carter (KG4FXG)
Have you ever thought about operating from your work location? Perhaps during lunch or a coffee break? What if that location was downtown in a big city?
In my case, I work in a 17 floor Skyscraper.
The building has several large outside balconies on the 5th, 10th, and 17 floors. There is also a green space on the 5th floor that is a grassy area with a lawn and trees. What are all the possibilities here for portable operation? Let’s find out!
Amateur Radio is about learning, and to that end we may build antennas, perhaps QRP Rigs, and other things. I’ve been building many QRPGuys and Tufteln antennas. I also use a few that I’ve purchased, such as the Chelegance MC-750, AX1, Gabil Vertical Antenna GRA-7350TC [gear links below].
Sometimes, the weather does not play nice and I’m forced to try operating indoors. Here I am using the Chelegance MC-750 on the 16th floor where I have clearance all the way to the top of the 17th floor.
The antenna almost touches the ceiling on the 17th floor. I was able to make a contact in England: John G4RCG. His location was in Kirkhamgate, Wakefield–about 11 miles from Leeds. We were able to exchange names but that was about it on 20M.
This antenna is amazing, I can’t wait to try it outside in our green space.
I was using the Elecraft KX2 but I have several QRP Rigs that I have brought to the office. Such as the Norcal 40, Elecraft K1, both of which were kits I built. I started QRP back in 1999 before there was POTA. Back then, you had to build your radio. Most did back then.
Learning about propagation has been interesting. It is not ideal to operate indoors. One simple way I test conditions is to see if I can hit the reverse beacon network.
Here’s a screenshot of the Reverse Beacon (below) while I was using the Chelegance MC-750 on 20 meters:
(Click to enlarge)
Simple Office Setup
I work for the railroad. You will notice my mug says Taggart. Some humor here, but that is from Ayn Rand’s Atlas Shrugged. Story about a railroad and so much more.
Here is the Green Space on the 5th floor. Could you use this space for portable operations?
Here is pictured where I operated off the 10th floor balcony. The view is amazing!
For the balcony, I just throw a wire over the glass railing. The balcony is huge with many tables and chairs for lunch. I have used K4SWL’s Speaker Wire antenna build here.
My hours are very unusual. I normally work from 2AM to 5PM and I leave to drive home at 11AM. I love telecommuting for work these days. So, when I operate, it is around 3AM or 4AM. Not ideal times for POTA, but a great time of day to work DX!
I have so much more to try. I have a Spiderbeam Pole and SOTABEAMS Pole that I am playing with as well. I also have the Alex Loop Antenna that I will try from work.
Another operating position: here I am inside running RG-316 through the door to the 10th Floor Balcony. I am using Thomas’s Speaker Wire antenna here.
One of the challenges that I face at 3AM is cold temperatures and wind. There can be wind around these large buildings that can make operating difficult. In cases of cold weather, I just opt for the little table and chair next to the door. Besides, the coffee stays warmer longer inside!
New buildings make it very difficult if not impossible to get an RF signal out. Getting an antenna outside is key. And even then, that does not guarantee success. The building’s corners have glass conference rooms. You feel like you are outside, but I haven’t found a really good location for QRP. That said, there are many more options to try.
Have you tried operating from your work location, perhaps at lunch? Maybe as a POTA chaser? What is your go-to method and set up? Check out more of my shack on QRZ.
Bill KG4FXG
Gear:
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