Many thanks to Christian (IX1CKN) who shares the following field report:
How the Red Corners uSDR+ Performed on Its First Field Test
by Christian (IX1CKN)
24 QSOs in 104 minutes at 5 watts—how would you rate that? The answer isn’t exactly scientific, as it depends on personal opinions, habits, and the unique propagation conditions during the activation. But in my eyes, as the first test of the “Red Corners” (a.k.a. USDR+), it’s definitely a positive result.
I wanted the “first time” with my new QRP radio (which has been catching the attention of more and more operators) to be out in the field, so on Thursday, the 29th August 2024, I headed to the Tsatelet Reserve (IT-0120) to contribute to the Parks on the Air (POTA) program.
I have to admit, I had doubts about reaching the 10 contacts needed for validation. I arrived at the site at 15:16 UTC and set up a 1/4-wave vertical antenna on the ground. I decided not to use an external mic, just the built-in one. The setup was then in “walkie-talkie” mode, fitting in one hand, leaving the other free for logging or filming. Conceptually and practically, it was real freedom.
The first few calls brought in four quick responses, one per minute.
Encouraging start, but then it felt like the band “died.” So, I adjusted, searching for stations that were calling in return. I found several, including Roberto (IG9ITO) from Lampedusa Island —always a pleasure to QSO with him—and I also logged Carmelo (IT9ESF) from Messina.
Between calling and moving around to catch other activators spotted on the cluster (thanks to the dual VFO, although you need to navigate through the menu to switch), I managed to increase the contact count to 24 by the end.
Notably, I logged 9 “park-to-park” QSOs, including the longest distance of the day—1820 km to TA1EYE. That’s a rare feat for a single activation. Some colleagues were operating from 2-fer areas, but I prefer to count unique calls, which is still interesting data.
It’s interesting because it shows that the “Red Corners” has the power to reach operators who, as activators, don’t necessarily have fancy antennas or are dealing with challenging terrain and horizon. It happened 9 times today, so it’s not a coincidence. I’d also like to point out that I didn’t use an external tuner. I noticed that adjusting the vertical whip length allowed for an SWR of 1.2 across the band, which I found acceptable. Plus, it feels like a solid device in hand and looks good sitting on a rock.
What else can I add that the video below doesn’t show? The “Red Corners” uSDR, like the Quansheng UV-K5 (another recent “must-have”), has some objective limitations. I won’t rehash them here—there are plenty of posts covering that. This makes it impossible to consider this Chinese QRP rig as a replacement for our shack radios. However, considering its limitations and focusing on portable use, its value for money becomes a strong point and offers an interesting angle.
The first test went well, but there will be more (I’ll also get the monoband whip, and it will be fun to try pure “walkie-talkie” operations).
Many thanks to Christian (IX1CKN) who shares the following field report:
A Breathtaking “Support Your Parks” Weekend in IT-0120
by Christian (IX1CKN)
…Day 1
The goal I had in mind was to take advantage of early morning greyline from a POTA reference, combining the appeal of an activating station with the propagation opportunities at that time of day. In this part of the season it means being active around 3/3:30 UTC, and although I didn’t manage it on day one, Saturday 20th July 2024, I went out much earlier than usual and had a few surprises, confirming the idea’s potential.
I chose IT-0120, the Tsatelet Nature Reserve, my “home reference”, because a short trip is needed to be active quickly. I was happy to go, both curious about how it would turn out and because it was the “Support Your Parks” weekend. If there’s pride in being part of this program, these are the two days to show it. The setup was as usual: Xiegu G90 with a ground-mounted 1/4 wave vertical antenna. Given the lighter battery (I had to walk to the top of the reserve), I lowered the power to 10 watts for a longer duration.
With these thoughts in mind, at 6:44 UTC, I powered up on 20 meters. After a “park to park” with a colleague in Lithuania, which I took as a good omen, I moved to a clear frequency and started calling. The first 2-3 minutes were silent, but then I got a response that changed the day: “…KL7TC.” Alaska, for the third time! Bill in Fairbanks was coming in at 5/7-8 with that unmistakable transpolar signal fluctuation. He gave me a 5/1, and when I told him I was running 10 watts, he congratulated me. I grabbed my phone and filmed part of the QSO, so expect a video. From here on, every QSO was a bonus.
Five minutes later, as the skip started to Europe, KZ4CP, Brandon from Kentucky, answered. He came in strong (another 5/8 from me), and on the second over, he said my signal jumped to 5/8. It was 6:56z, I logged it, filled with gratitude, and moved on, thinking that this project should be realized as soon as possible. From Europe’s perspective, things were slower, but responses continued, albeit at a low rate. I also managed another “park to park,” the second (and last of this activation), with LA7TN. I couldn’t hear the others on the cluster.
Don G0RQL joined in, making it the 10th QSO. The activation was valid. However, I regretted not exploring other bands. After checking and hearing a few decent signals, I switched to 15 meters, calling for five minutes with no luck. Then, I moved to 17 meters: no response to my CQ, but I heard VK3IO, Ron, near Melbourne. It was 7:33z, and although he wasn’t very strong, he was still a solid 5/7. I waited for him to finish his QSO and called. After some persistence, he got my call. The report was 4/3, but even if it were lower, the joy of covering over 16,000 km with 10 watts is incomparable (there will be a video portion for this too).
At this point, it was close to 10 local time (8 UTC). The sun was starting to heat things up (including the G90 chassis, which has a known issue with heat dissipation), but I had one more experiment. The Chinese multiband vertical is designed for 20 to 10 meters, but with a coil I bought earlier, it can do 40 meters too. I added the component, found a clear frequency (7130), and started calling.
I had noticed a couple of times that this solution is a compromise, not very effective. However, it brought in another 5 QSOs: with Piedmont, Tuscany, Lazio, and France. So, it did something and was better than nothing. I wrapped up after 68 minutes of activation with 17 contacts logged. The slow rate indicates conditions aren’t ideal yet, but with Alaska, Kentucky, and Australia (for the first time from a park) in the log, and a breathtaking view of Aosta, there’s no room for complaints. See you next time, and thanks to everyone!
Video – Alaska and Australia:
…Day 2
A thunderstorm hit Aosta at 5 AM. No thunder, just a continuous rumble like an engine, with flashes of lightning every few seconds. Enough to wake me up, though sleep is always welcome (especially on a Sunday). Once it stopped, I didn’t curse the rain but seized the opportunity to get closer to my original project. So here I am, in the car, arriving at IT-0120, the Tsatelet Nature Reserve, at 6:44 local time, 4:44 UTC, on Sunday 21st July 2024, for a POTA activation not exactly at greyline, but still early morning.
Clearly, I couldn’t use Saturday’s setup. The storm had created puddles and stagnant water, making it impossible to set up outside. So, I decided to operate from the car, with the Xiegu G90 remaining the core of the portable shack, but swapping the ground-mounted 1/4 wave vertical antenna for the Outback Falcon HF-1899 on the car roof. Definitely less efficient, but if we wanted to do this today, this is how it had to be done.
Also, I had a less capable battery than the day before, so I lowered the output power to 10 watts to ensure longer operation. As soon as I turned the radio on 20 meters, I was amazed by the number of American accents I heard. I listened to VE3GXT calling CQ POTA from Ontario with a solid signal, but despite my responses, he couldn’t hear me. So, I found a free frequency and started calling. The pace was slow, as seen the day before, but something happened.
First, Joe WB2WKJ replied, explaining that it was his first time “hunting” a park from Italy. However, he only gave me a 3/3 in New Jersey, making it clear that receiving is one thing, and transmitting (and being heard) is another. I kept my spirits up, and soon W3MJB, Mike from Pennsylvania, responded. This time, the report was 5/2, which sounded more in line with a QRP station. The “park to park” call that followed was thrilling.
It took a moment because the signal wasn’t strong, but it came from VK3YV Tony, activating in Victoria, Australia. I got no more than 3/1, but the noteworthy part was that 10 watts and a vertical on a car were reaching the other side of the world (a first for me with POTA). Feeling encouraged, I searched for another activating station from “Down Under,” VK2USH in New South Wales.
Again, I was heard with difficulty (which was to be expected), but we completed the contact, and I felt that even if I didn’t reach 10 QSOs, the activation was worth the day. Before the skip shortened, I heard a station from New Zealand and, out of curiosity, on 15 MHz, the WWVH time signal from Hawaii, which, in a surreal twist, arrived simultaneously with WWV (from Colorado).
You’d expect to hear only one of them (the one from the Pacific) at that time of morning, but there are propagation theories, and then you turn on the radio and hear what actually comes in. The calls continued, and I logged KZ4CP, Brandon from Kentucky, for the second day in a row, and KN4DY Randy from Georgia. From him, I even got a 5/3, the highest signal report of the day from across the Pond.
It was 6:50 UTC, and Europe started responding. The activation, previously an uphill battle, leveled out. Many Spanish friends and other familiar POTA faces enriched the log. When I reached a good 20 contacts, I tried moving to 40 meters. Again, the antenna wasn’t very effective on that band, but I managed about ten contacts, including Belgium, the UK, and Austria.
In the end, I made 31 contacts in 3 hours. The rate remained slow, but today, more than ever, I saw firsthand how greyline phases or signal enhancements on shortwave can hold surprises. Sure, with more power, much more could have been achieved (besides Canada, even KD9VVS Nick activating from Indiana couldn’t hear me). I thought about “only” 100 watts, but there will be time to keep testing. Low power is a philosophy, but it shouldn’t become a dogma, because the beauty of radio is giving meaning to what we do.
Today, no activation pictures to accompany the post (also because IT-0120 has been featured on QRPer a few times now), but a video. Apologies if it’s not strictly about hamradio, but the two signals from Hawaii (the one with the female voice) and Colorado (male voice), rarely received so clearly here, demonstrate better than many examples how shortwaves are made to travel far, how thrilling it is to chase them, and how intense this “Support Your Parks” weekend has been.
Many thanks to Christian (IX1CKN) who shares the following field report:
Activation of I-0120
by Christian (IX1CKN)
After “infecting” Andrea (IW0HK) with the use of military surplus for POTA activations, on December 26, 2023, I decided to repeat the experience. I brought the Plessey PRC-320 to the 791 meters of the Tsatelet Natural Reserve / I-0120.
With its 11 kg weight, two images came to mind. The first was from an article on QST dedicated to “green radios,” where it was said: “if you’re not fit, carrying one on your back will make you.” So true, even truer.
The other reminded me of all the Army officer cadets (who attended courses at in Aosta for years) that, specializing in transmissions, carried stations (also) on short waves on their shoulders around my Valley to ensure connections (I’ve seen some beautiful photos just in the past few days, here: http://www.rosti1.it/fixed/ja_AUC_BN/).
After 10 minutes of walking, I didn’t have much more left. Wonder how they made it…
After dispelling the mysticism, once at the destination, I set up the PRC in manpack configuration: with its whip vertical antenna and the counterpoise consisting of four coils to be laid on the ground.
Finding a frequency in 20 meters, I started calling. Propagation in phases, but a satisfying activation emerged, with 40 contacts scattered throughout Europe in 70 minutes on the air, including 5 “park to park.” Among them, even IW0HK, who was at Montemario Park.
A small curiosity: with the Christmas Eve activity, I had exhausted the dedicated logbook since 2013 for portable operations. To continue, I used the “Radio Adventure Journal” that I had seen mentioned on a Facebook group (being available on Amazon [QRPer affiliate link]).
It’s nice to see a program like POTA spreading like wildfire, not only in practice but also for some “accessories.” Thanks to everyone for the contacts.
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I wanted the “first time” with my new QRP radio (which has been catching the attention of more and more operators) to be out in the field, so on Thursday, the 29th August 2024, I headed to the Tsatelet Reserve (IT-0120) to contribute to the Parks on the Air (POTA) program.
The first few calls brought in four quick responses, one per minute.
It’s interesting because it shows that the “Red Corners” has the power to reach operators who, as activators, don’t necessarily have fancy antennas or are dealing with challenging terrain and horizon. It happened 9 times today, so it’s not a coincidence. I’d also like to point out that I didn’t use an external tuner. I noticed that adjusting the vertical whip length allowed for an SWR of 1.2 across the band, which I found acceptable. Plus, it feels like a solid device in hand and looks good sitting on a rock.
What else can I add that the video below doesn’t show? The “Red Corners” uSDR, like the Quansheng UV-K5 (another recent “must-have”), has some objective limitations. I won’t rehash them here—there are plenty of posts covering that. This makes it impossible to consider this Chinese QRP rig as a replacement for our shack radios. However, considering its limitations and focusing on portable use, its value for money becomes a strong point and offers an interesting angle.
The first test went well, but there will be more (I’ll also get the monoband whip, and it will be fun to try pure “walkie-talkie” operations).
Finding a frequency in 20 meters, I started calling. Propagation in phases, but a satisfying activation emerged, with 40 contacts scattered throughout Europe in 70 minutes on the air, including 5 “park to park.” Among them, even IW0HK, who was at Montemario Park.
