AmateurRadio.com

Ever since the dawn of time coding has been a foreign language to me. I pick up bits and pieces but largely it gets forgotten or lost.

Tonights issue is about interrupts and debouncing buttons. What better thing to do whilst listening to the 6m white noise contest (also known as vhf from my qth).

The idea is simple. I made a shack clock from a gps and an arduino. I made it tell the time, tell me the position I’m in (no I don’t mean like that) an calculate the locator square. Now then all I want to do is link these together with a simple button press. Press the button and it changes from one function to the next.

Holy arduino, this isn’t straightforward at all. Buttons need debouncing and interrupts don’t like this or that. I feel a long development time in my future…still there’s not much on 6m and 2 contacts in the first hour isn’t going to win me any awards.

Alex Hill, G7KSE, is a regular contributor to AmateurRadio.com and writes from Cumbria, UK. Contact him at [email protected].

Today’s sunspot count is 65 with “normal” 20-30MHz conditions. It looks to me as if the solar activity is now on the slide downwards. This does not mean an end to good conditions. This autumn 15, 12 and 10m should still be in very good shape and it will be a few years before we really see the changes.

There are all sorts of predictions about the next few cycles. The consensus is the next few cycles will be ones with low solar activity. It is still too soon to say if we are really entering another Maunder minimum. Don’t worry: this is a chance to explore HF in different times. There is unlikely to be good (any) E-W F-layer propagation on 12,10 and 6m but N-S propagation will be possible some of the time and openings on Es can be surprisingly distant in all directions at the optimum times of the year.

And there are always VHF, UHF, microwaves and nanowaves to explore!

See the coming months and years as a challenge. We may never see really good conditions again in our lifetimes but there will still be interesting propagation and DX to be worked and heard.

Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

I cannot remember the supposed link between Es and thunderstorms (something to do with sprites going upwards from thunder clouds?) but with plenty of thunderstorms in the Alps, I wonder how Es will be tomorrow? Maybe conditions to southern Europe will be good on 6m Es?

Although I probably could safely reconnect antennas this evening now the storms have passed, I think it will be better to wait until the morning.

Knowing my luck, the 6m band will open transatlantic tonight and I shall miss it all! That would not be the end of the world.

Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

'29 Style Card

After becoming interested in building and operating '29 style transmitters, I worked with Dennis (VE7DK), a local QSL printer, to design a 1929 style QSL card. Dennis is now in his 56th year of printing cards and is still going strong! I was very happy with the finished results and have used the card to verify all contacts made with the early style rigs.

When I next became interested in mid-30's style construction, I decided it was time for another 'era-appropriate' card to match the transmitters. I began searching the web for vintage cards from the mid-30's and soon zeroed in on a card that I found particularly attractive...and from Canada as well.



Once again, Dennis came to the rescue and worked enthusiastically with me to try and duplicate the features and look of the VE4 card that I wanted.



'35 Style Card

I think he did a super job once again and this past winter the new cards have gone out at a furious pace as I worked many new stations, all on 10m CW with my 6L6 Tri-Tet-Ten.

6L6 Tri-Tet-Ten

If you or anyone you know might be interested in a vintage style card (or any type of card) please get in touch with Dennis. I cannot speak highly enough about him and the quality of his work. You won't be disappointed.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

If you missed G0LRD‘s comment in an earlier post you may want this link that shows lightning activity:

http://www.lightningmaps.org/realtime?lang=en

There are storms in Eastern England and very many over the Alps. Interestingly  the CN8 to OZ path has been open on 6m Es today. Some believe there is a correlation between Es and thunderstorms.

UPDATE 1720z: At the moment, the storms have ended but the lightning map shows a further storm is due to come through. At present it is over the Peterborough area and moving SE. I think it is best to NOT reconnect the antennas today.

UPDATE 1751z: The storm over Peterborough seems to be moving in an easterly direction and may miss our village with luck, although I can now hear distant thunder to the north.

UPDATE 1812z:  The storm is definitely tracking east over the Bedford Levels in the Fens, towards Littleport, so should miss us.  Even so, I’ll stay off air tonight.

UPDATE 2016z:  According to the lightning map, all thunder storms have now died out in the UK. I’ll reconnect antennas in the morning.

Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

It’s so sad to me to see this once great retailer continue its downward trend. I have so many fond childhood memories stopping by the local Radio Shack (there were actually three in my town) to pick up batteries and other parts.

This morning its stock price is down to $0.82 a share from a high this year of over $4.00. Both of these numbers are a far cry from Radio Shack’s high of nearly $80 a share in December of 1999.

It seems like Radio Shack really had a chance to position itself as the leader in the new “maker” movement, but instead chose to be a second-rate retailer of cell phones and (overpriced) consumer crap.

Source: Slate via Adafruit

Matt Thomas, W1MST, is the managing editor of AmateurRadio.com. Contact him at [email protected].

I am a week delayed in documenting this adventure, however, I had to write about it. I went back to my QTH near Santa Fe on Father's Day weekend for some SOTA therapy. I needed to fuel my addiction. There is a great SOTA community in Santa Fe and the surrounding area. The area boasts four SOTA Goats (SOTA Progaram Activator Award), KT5X, KE5AKL, NM5S and the most recent K1JD. Needless to say any non-goats must understand that there are certain expectations. Accordingly, I hooked up with Doc, K7SO on the weekend to try to gain some ground on attaining, Goat Status.

On day one, Saturday, we activated three summits, Don Fernando (W5N/SS-024), 10900 (W5N/SS-019) and Greenie Peak (W5N/SS-015). These are all 10 point summits. My XYL, Cris, was also along to provide support and take few pictures.The equipment for the day was an FT-817, 20/40m EFHW for me and Doc had a KX3 with a 43 ft. random wire and a  9 to 1 balun. The weather was nice, clear to partly cloudy skies with 30 mph winds. The windy conditions put a haze in the air which dimmed the views a bit, but still not a bad day to be in the mountains.

The first two summits are east of  Taos, NM. Doc and I had done these summits before and with the coordinates where to park, getting these summits activated was a matter of course. Each requires relative short hikes to the top, but bushwhacking is the order of the day, with the ascent of Summit 10900 being the most diffiicult of the two. There are lots of downed trees that have to be navigated.

The main obstacle of the day was a recently fallen tree that blocked the road to Summit 10900. Not worry, my Jeep was able to get around the tree with a little off roading. A longer wheel base vehicle would have had trouble getting around. BTW, the jeep came in handy all day long, the roads we travelled had sections that the 4WD and high clearance came in handy.

We did see some wildlife during these activation, including several Elk, Whitetail Deer and some turkey.

Getting to Greenie Peak was more of challenge than we expected.  Greenie Peak is near Red River, NM, which is an hour plus drive from Summit 10900. I had done the peak in the past, but a friend had taken me there on a Razor, a two passenger ATV, and I didn't pay much attention. Consequently when the GPS sent us up the wrong road I willingly followed. This road was a 4WD only road, with warnings, and a sign that said "Exploration Road". Well, we were in search of Goat status, so onward and upward. The road was a one lane, rock filled, steep, hairpin switchbacks to a small summit only big enough to turn the Jeep around on. Sorry Doc, but this is not Greenie Peak. Back down we went. Finally found the road, made the Greenie Peak summit. To expedite the activation we only set up one rig and Doc and I alternated contacts. We worked the pile untill CQ's went unanswered and called it a day.

I had left my house at 7:30 am that morning to drive north to pick up Doc and finally got home that night at 10:30 pm. A 15 hour day of SOTA therapy. I was tired, but I did feel good about getting 30 activator points for the day.

Sunday was a new day, with two summits on the agenda. Barrillas Peak (W5N/PW-022) and Bear Benchmark (W5N/PW-014).  Doc was using this KX3 set-up again, but I swithed the the AT4-S, KD1JV designed CW only radio. The weather was a duplicate of the day before, but the wind had diminished considerably.

The hope was to get these two done and get a home alittle earlier. Barillas went off without a hitch. There is a firetower on top, with nice views. Propagation was good, but it was Father's Day, so I think a few of the chasers were occupied with other activities.

Getting to Bear Benchmark proved a little more challenging. My GPS is set-up for the shortest route which is good most of the time, but not for this day. We followed a road for several miles only to come to a locked gate with "No Trepassing" signs all over it. Bummer. It was getting late in the day and I felt that we wouldn't make the summit in time. We turned around, somewhat disappointed and headed back down. However, when we got back to the main road, I wanted to find the right road at least. We reentered coordinates and the GPS point us a different direction, which to make a long story short, was the right direction. Once on the right road, we decided to go for it and when finally reached the firetower atop Bear Benchmark, the determination was rewarded. We, again, only set-up one station, and took turns calling CQ until we had worked down the pile.

I made it home just in time to watch my favorite basketball team, the San Antonio Spurs put a beat down on the Miami Heat and win the NBA Championship. A good day indeed.

Below is a brief  video of our adventure. I must give credit to Cris who gets credit for putting this together.


Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].