European Vacation – Friedrichshafen
Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].
Pixie and Micro 80
These little QRP transceivers first made an appearance some 20 odd years ago. They are extremely simple transceivers that use the TX PA as the RX mixer to save parts.
I built a Micro 80 some years ago and my best QSO was around 300km. Biggest issue (for me) was broadcast breakthrough from strong broadcasters just above the 80m band. Variations included the Pixie 2 which added some refinements at the expense of more parts. Kits are available, but the circuits are so simple it is not work paying over the odds for these. The Micro 80 uses all discrete components whereas the Pixie and Pixie 2 use an LM386 for the RX audio.
If you build one, be prepared to fight for contacts. It is not the TX power that is the problem: it is the receiver that is the limitation.Given good conditions and little broadcast breakthrough, these rigs work.
See https://sites.google.com/site/g3xbmqrp3/hf/pixie .
The same basic schematic will work on any HF band with changes to the output filter. Watch out for chirp on the higher HF bands: don’t be tempted to try to pull the crystal too much, especially on the higher HF bands.
Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.
West Coast Day For 6m
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| Courtesy DXMAPS.COM |
At 0700 I began to hear bits and pieces of CN8KD in Morocco while he was working 4's and 5's ...every once in a while his CQ's would briefly rise out of the noise but never long enough or loud enough for me to reply. He eventually faded and the band shifted to a more northerly path and at around 0900 local time, EA8DBM (Canary Islands, AF) showed up on SSB, while working into the SE U.S.A. He was much louder further to the south but at 1632z I was able to work him on phone and a few minutes later on CW, down the band. In over 40 years of being on 6m, this was only my second African QSO, with my other one also being into EA8.
The best part of the opening today was the number of west coast stations that were able to put rare Africa into the log....and, for a number of them, it was the completion of WAC on 50MHz....very tough from the left coast. VE7DAY, K7SS and NA6XX will all be celebrating today!
As I post this at 2130z, the KL7's are cashing-in on the magic while working across the U.S. as far south as Florida! I've always thought the first week of July to be the best of the season for 6m...lets hope it keeps going.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
Distant learning
Here we go again. We have just started a new 6 month distant learning course for the advanced exam. Our recent in class success of 100% pass rate for the intermediate license was a fantastic achievement for the students and tutors alike. And this time we had quite a spread of student ages from 12 to 60+ all scored very highly in the exam and have signed up for the advanced course.
This term we have again used an online free resource called Edmodo. Edmodo describes itself as a social learning platform, and it really fits with our classroom platform.
Our classroom works like this. Each week we set a set of questions based on learning material we have covered in previous weeks. The material can be video, text, powerpoint or audio segments. We follow this up with 3 weekly homework sessions and score each student individually.
Being distant home based learning its quite easy for the student to feel isolated. So to ensure the student is supported and has a mentor we assign each student a tutor who passes feedback and support to the student. Along with this we also set some motivational targets that can be gained when a student hits a particular milestone. It’s a system that really works. Our student retention rate for last term was fantastic. We have made a few minor adjustments to the classroom template – but it is pretty much the same as last time.
This term we have 80+ students signed up and already submitting responses and saying hello to other students.
If you run any training course I highly recommend it. Ok it takes a little bit of understanding but it is a fantastic FREE tool. And we all like things that are free don’t we.
Dan Trudgian, MØTGN, is a regular contributor to AmateurRadio.com and writes from Wiltshire, England. He's a radio nut, IT guru, general good guy and an all round good egg. Contact him him here.
Distant learning
Here we go again. We have just started a new 6 month distant learning course for the advanced exam. Our recent in class success of 100% pass rate for the intermediate license was a fantastic achievement for the students and tutors alike. And this time we had quite a spread of student ages from 12 to 60+ all scored very highly in the exam and have signed up for the advanced course.
This term we have again used an online free resource called Edmodo. Edmodo describes itself as a social learning platform, and it really fits with our classroom platform.
Our classroom works like this. Each week we set a set of questions based on learning material we have covered in previous weeks. The material can be video, text, powerpoint or audio segments. We follow this up with 3 weekly homework sessions and score each student individually.
Being distant home based learning its quite easy for the student to feel isolated. So to ensure the student is supported and has a mentor we assign each student a tutor who passes feedback and support to the student. Along with this we also set some motivational targets that can be gained when a student hits a particular milestone. It’s a system that really works. Our student retention rate for last term was fantastic. We have made a few minor adjustments to the classroom template – but it is pretty much the same as last time.
This term we have 80+ students signed up and already submitting responses and saying hello to other students.
If you run any training course I highly recommend it. Ok it takes a little bit of understanding but it is a fantastic FREE tool. And we all like things that are free don’t we.
Dan Trudgian, MØTGN, is a regular contributor to AmateurRadio.com and writes from Wiltshire, England. He's a radio nut, IT guru, general good guy and an all round good egg. Contact him him here.
Third Peak For Cycle 24 ?
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| July 06, 2014 Courtesy: nasa.gov |
When looking at today's solar image, it's difficult to believe that Cycle 24 is the weakest cycle in the past 100 years. It's also hard to believe that it is on the way down. With the solar flux numbers hovering around the 200 mark, one wonders how great conditions might be had this been happening in mid-November rather than in mid-summer. In spite of the month, propagation over the pole from VE7 land continues to be excellent on the higher HF bands.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
Check out the sunspots!
Just before the 4th of July, several sunspot regions rotated into view. Today, they are significant players in elevating the solar output of Extreme Ultraviolet energy — the energy helpful in ionizing the F-region of our Earth’s ionosphere. That, in turn, means better propagation conditions, even on higher shortwave frequencies.

As seen by the Solar Dynamics Observatory, the Sun is sporting quite a few sunspots, today. These are helping elevate the 10.7-cm flux, which is a proxy for solar output that strengthens the ionospheric propagation of higher frequencies in the shortwave spectrum. Expect good conditions on HF, this weekend.
73 and best DX!
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