Archive for the ‘qrp’ Category
Holiday SOTA Activations
I am spending a few days at my Santa Fe, NM QTH for the holidays. There is snow on the ground and its only been above freezing about 3 hours since last Friday. However its a dry cold so its not too bad.
As always when I'm here I try to squeeze in some Summits on the Air (SOTA) activations. So far I've been able to do a couple as detailed below.
The Wagon Mound W5N/EL-016 6,930ft ASL 6 pts
The Wagon Mound gets its name from it's appearance. Without too much imagination you can see the outline of an old Conestoga Wagon on the summit outline. I chose this summit primarily because I've never done it, but also because, for the peaks in the area, it is at a relatively low elevation and the snow cover should be much less than higher peaks. When I departed Santa Fe, it was clear, sunny and 19F. I envisioned very thin snow cover, if any, on the mountain.
I was in for a little surprise, as you will see from the video below.
Wagon Mound, NM is 104 miles northeast of my QTH near Lamy, NM. About half way there we encountered fog. Visibility dropped, at times, to about 50 yards and the temperature dropped to 7F. I was beginning to have my doubts about making the climb. It was obvious that the snow accumulations were significantly more here, than back home. However I continued, postponing my decision until I could see the actual conditions at the base of the mountain..
Upon arrival, conditions had improved a little, visibility to 1 mile and the temperature was 13F at the base of the mountain. It wasn't a long climb, but it was steep. There was about 12 inches of snow on the ground. The problem with that is that this climb was a bushwhack over volcanic rocks and cactus. The snow cover completely disguised what might or might not be underneath. I decided to make the attempt. Cris, my XYL, was with me and she was willing to try as well. After all, we had just come over 100 miles.
The footing was treacherous. I had to plant my foot through the snow to discover what footing was below, whether solid ground or slippery rocks.We took our time and turned what should have been a 20 minute climb into about 40 minutes.
We set up about 30 feet below the summit, well into the activation zone. I used my KX3, 31 ft. piece of wire elevated with a 21 foot mast through a 9 to 1 balun, tuned by the KX3's tuner. Despite weather conditions, propagation was very good. I worked 31 stations on 20m CW in 18 minutes, a quick QSY to 40m yielded no results and since it was cold I didn't try any other bands. We packed up and retraced our steps down.
All in all a very satisfying activation given the challenges. We stopped on our way home in Las Vegas, NM and warmed ourselves up with some Mexican Food. A good day.
Summit 6860 W5N/SI-022 6,860ft ASL 6 pts
After my experience heading north, I decided to go south for my next activation. This summit is east of Albuquerque NM just south of I-40 and 67 miles from my QTH. This is a nice summit. Depending on where you start, the hike is 2. to 3 miles round trip. The elevation change is about 800 feet over that distance. There are numerous crisscrossing trails over the terrain, so there are multiple ways to get to summit. The trails are all nice trails, no bushwhacking required on this one.
The weather was near perfect for climbing, about 40 degrees, sunshine and little wind. Very enjoyable. You will see from the video below that the conditions were splendid and there was a little snow on the ground.
I used the same set-up here as described above. Conditions were good, 31 QSO's on 15, 20, and 30 meters.
So 12 more points in the log and some good exercise and, obviously, some stories to tell.
Happy New Year!!
JT65HF up and going!
| Screen shot of my first ever JT65HF contact! |
Hendricks QRP Kits BitX20A
See http://www.qrpkits.com/bitx20a.html
If I was looking for a simple, reliable QRP SSB rig for HF use in the coming years then the Hendricks QRP Kits version of Ashlan Farhan’s BitX transceiver for 20m would be in the frame. They also do a version for 17m, but there is more chance of QSOs on 20m. The rig has a useful 5W pep output and looks straightforward to build for most people. The Ashlan Farhan design is well proven. Going from 100W down to 5W is only just over a couple of S-points. 5W will get you plenty of QSOs on 20m SSB. 5W is fun.
A 10m version would be fun, but sadly is not available, but likely to be less useful in the years to come, apart from summertime Es. A 10m design would need better MOSFET PA devices anyway I think.
Armchair ham radio at it’s best!
| The armchair setup |
| A closer look |
| The op desk with Palm paddle |
MST SSB transceiver kits
See http://www.ozqrp.com/index.html
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| https://pbs.twimg.com/media/B2o8mpYIgAAX6Pc.png:large |
A nice line of SSB QRP transceivers for 80, 40 or 20m with power up to 5W. These kits come from Australia and payment is by PayPal. I have no experience of these kits so have no idea how they perform when bands are busy as in Europe.
It looks like these are easy to build kits.
QRP radios
I continue to be surprised by how few affordable QRP radios are on the market. The FT817ND continues to be the favourite, but recent exchange rate changes have not been matched by decent falls in the UK retail prices. I think we are still being ripped off by dealers in the UK. The IC703 is no longer made and the KX3 from Elecraft is very expensive over here. There are a few lower cost Chinese HF radios appearing. Overall, there remains little choice in QRP transceivers at sensible prices. I am sure the KX3 is a very good radio but for the same price I can buy 2 FT817 transceivers, and these are all mode and to 70cms.
A multi-band, all mode, 5-10W radio would be a killer in this age where people take lots of holidays and are on the move frequently. I still fail to understand why the big Japanese manufacturerers have not got a raft of low cost units on the market. It seems a gold mine opportunity is being wasted. Maybe I have misread the market?
I know if there was a new, attractively featured, QRP transceiver on the market now at a sensible price I’d be in the line to buy. I am sure very many others would be too.
My Latest Contraption, a QRP portable, all in one, seat & table, etc!
I added a bungee cord on each end to prevent damage from the radio accidentally falling off the table.
The cord does not touch the buttons.
View from the back
All in one, QRP seat, table, umbrella and antenna anchor! The bottle on the table is bug spray! LOL
The table is a cutting board attached to the existing shelf.
The cutting board is bigger than the existing shelf, so I have more room for logging and a sturdy place to attach the antenna!
A bungee cord takes up the slack from the antenna in the wind. In a real world test, I found that one radial is all I need.
I tried an experiment, adding two, then four radials. There was no detectable change in signal level by ear on or the S meter.
One radial did the trick, and 4 radials didn’t improve the signal at all.
Note the guy ropes. This is to hold the chair in place. The golf umbrella is stuffed into a piece of PVC pipe.
The PVC pipe is tied to the chair with cable ties.
Wind and the antenna pulling on the table would easily turn the chair over.
Satisfaction! I can’t wait for the next ham radio outing with my QRP buddies.




















