Thank you VP6R Pitcairn Island

I had a nice surprise today when 6 new band confirmations showed up for VP6R today.  Need 104 more to get my next DXCC Challenge Award endorsement.

Missed a clean sweep by failing to get them on 30-meters.  I did hear them booming in one day on CW, but by the time I had my antenna setup, they had gone QRT.  Never heard them again on 30.

Great DXpedition by a wonderful group of superior operators.

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The smell of Fall and a new Soldering Iron

It’s hard to beat fall in New England.  Beautiful colors, amazing apples (cider, hard and soft, plus donuts!).  It means all the busy summertime activities are fading away, and being replaced with more leisurely ones.  In my case, that means fall & winter construction projects.

I was involved with an event sponsored by my radio club (Newport County Radio Club), that we call “Hands-on Radio”.  Unlike a formal club meeting, this gives our members (and guests from the public) a chance to do things in a informal setting with mentors available to coach.  About a month ago the topic was soldering skills, and I was one of the mentors.

I was surprised at the range of soldering gear brought by the students, ranging from fairly new to ancient.  I saw solder that had to be 0.125″ in diameter, and so oxidized over decades(?) that it was dull grey.  In fact, in several cases, I was concerned that folks were using acid core solder, as the rosin was pitch black.  Believe it or not, solder has an expiration date — 3 years from date of manufacture.  Of course you can use it beyond that date, but the effectiveness of the rosin as well as the oxidization of the metals becomes an issue.  Just for the record 0.031″ diameter is fine for through-hole, but something like 0.020″ should be used for SMT work.  0.025″ is a decent compromise.

Soldering, especially now with lead-free, no-clean rosins, requires fairly modern tools that can achieve the correct temperature and maintain it despite the thermal load.  Today that means an iron of 50 watts or more, and thermally controlled, with various tips to deal with through-hole or SMT devices.  For decades (think mid 1980s), I have been using a workhorse Weller machine with thermal sensors built into the tips.  It was accurate, but the temperature was either 700F /371C or 800F /427C, depending on the tip used.  Current lead-free solder from Kester has a narrow temperature range of 371 to 400C.  So the 700F tips were the bare minimum (and when cooling during the soldering process would drop too low), while the 800F tips were too hot, causing oxidizing issues.

So I decided to upgrade to a WE1010 Solder Station which has adjustable temperature settings — so it is easy to set it to 382C, pretty much ideal for lead-free/no-clean soldering (Like Kester 24-7068-7617 , lead-free no-clean #275 flux, with a diameter of 0.025″).

I found that the new solder station was about 40% less expensive through Amazon, but tips were about half the cost when purchased through an electrical distributor like Newark or Mouser.

So my old station is relegated to reworking older lead solder devices, while the new station will remain lead free for any new construction projects.

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Who says HF is dead during the solar minimum?

A friend of mine, Bob W1YRC, has often said that some of his best DX happens during sunspot minimums.  He certainly is right.  While it is true that we lack effective sunspots, so our Solar Flux readings are very low, we do experience a large number of coronal holes, as this image shows:

The holes in the corona allow for many high speed particles to escape the sun’s magnetic field.  When these particles hit the earth’s magnetic field, it becomes energized, potentially causing geomagnetic storms, but also improving F-layer propagation.

Here’s a snap of my waterfall around noon today on 15 meters.  Things are hopping!

The same is true for 10 meters, which is often open during the day, but is ignored by many operators based on the mistaken belief that 10 meters is only open around solar maximum.

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Too easy? D68CCC

The Mediterraneo DX Club is on an adventure again, this time to Comoros Island, off the northeast coast of Mozambique Africa.  Signals are booming in on 30-meters today, which is not surprising.

But their website is absolutely AMAZING.  Everything is done real time, including an activity chart, and plotting contacts on a map.  Almost makes things too easy (but I’m not complaining; we all need easy from time to time).  Within seconds of making my contact, I was in their log and shown on the website.

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Looking for a Pitcairn VP6R Clean Sweep

I managed to finish up some other tasks last week right before the CQ WW SSB Contest.  So I started listening for VP6R and found them on 17-meter CW.  I wasn’t sure if it was an All Time New One (ATNO), but it wasn’t.  I had worked them a few years ago, also on 17-meter CW.  But having worked them this time, I figured I would shoot for a clean sweep, working them on all bands.

As of today, I have them on 10/12/15/17/20/40/80-meters.  All but the 10-meter FT8 QSO have been on CW.  I have yet to hear them on either 30 or 160-meters.  My fingers are crossed that I can pick up at least 30 meters before they QRT in a two days.

Photo of one of many VP6R antennas against the night sky

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How rare is 5BDXCC – Part 2

I received a nice note from Sharon Taratula, the Awards Manager at the ARRL today.  She mentioned that the 5BDXCC award is so old that it predates computers, so all records are on paper.  She also indicated that the most recent award, issued yesterday, was #9492.

Thanks to digital modes like FT8 & FT4 plus LotW confirmations, I am certain it is vastly easier to obtain 5BDXCC today than it was back when I was 13 years old sorting QSL cards into bins at the 4-land Bureau. I would handle each card like it was a delicate flower from some exotic land.  Many were from places that I had never heard of, like far away Pacific island nations.  At the time, my best DX was a contact with Arkansas, so even Canada and Europe were nothing but a dream to me.

As usual, I digress, so back to my main point…

My 5BDXCC arrived in March of 2015.  Since I started DXing in 2012, that represented about 3 years of effort for me.  All the contacts were using wire antennas, many were made using QRP, and only a few required more than 100 watts.  At that point 8,178 awards had been issued.  In the 55 months since then, another 1,314 awards have been issued, or about 24 per month.  During the first 75 years, They were issued at a rate of about 9 a month.  In fact, W1AW obtained its 5BDXCC in 2012!

So 5BDXCC is still very rare, but is far less so today than it was in decades past.

My quest for 9BDXCC continues.  I lack 24 countries on 160 meters, so you can guess where I will be focusing during the quiet months ahead.

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ARISS Contact Between Northridge Elementary School (Colorado University) Successful

Over the past several months, I’ve been working as an ARISS Technical Mentor with Colorado University, the Boulder Amateur Radio Club, and the University of Colorado Amateur Radio Club to have 16 students from the 4th grade classes of Northridge Elementary School contact Astronaut Nick Hague aboard the Internal Space Station.

The contact was a complete success, with all student questions asked and answered by Nick Hague KG5TMV.  Today happened to be Nick’s birthday, and his mission will be completed in about 10 days.  The contact began at 17:43 UTC and was completed at 17:55 UTC.

Claudio Ariotti IK1SLD and his team was the ground station for today’s contact as the ISS was flying over Italy.  Claudio live-streamed the event along with great visuals of what was going on at his end.  He recorded the event and it can be seen here: https://www.youtube.com/watch?v=RAyW4RVUnCU

The contact audio program begins at about 23min41sec

Screen capture from Claudio’s Live Feed of the Northridge Elementary School contact with the ISS

Congratulations to all involved from Northridge Elementary, Colorado University Aerospace, BARC, UCARC, and all the ARISS members all over the world that work mostly in the background to help these contacts happen.  And a special thanks and Happy Birthday wishes to Nick Hague.

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Seven to go on FT4 WAS

At this point, what remains is DE, ME, NE, NM, NY, SC, WV.  I have worked at least two stations from those states.  None have confirmed in LotW, or if they have, used “DATA” as the mode rather than “FT4”.  Just a matter of time at this point.

There was a fun opening to the Far East in Asia yesterday around 13:00 UTC.  That’s the one area of the world I still have a few countries to work, and tends to be hard for RI as the path is typically over the North Pole, which causes lots of additional propagation challenges.

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FT4 WAS Underway

With the recent updates to WSJT-X and JTAlert, making FT-4 mainstream, I noticed a lot of activity on 14.080.  So I figured I would join in the fun and try to get WAS completed on FT-4.  I’m getting closer, having confirmed 41 states.  In reality, of the remaining 9, I’ve worked all but DE, ND, UT on FT-4, but the other stations have confirmed as DATA, not FT-4.  The only state I haven’t heard (seen) on the band so far is NM.

DE, ME, ND, NE, NM, NY, SC, UT, WV, I’m looking for you!

Posted in Digital Mode, FT-4, FT4, WAS | Leave a comment

11K QSOs in LotW

I hit 11,000 QSOs entered into LotW today after spending the time to update to the latest versions of HRD, WSJT-X, and JTAlert.

HRD still doesn’t deal with the way the ARRL chose to acknowledge FT4 QSOs (using a submode of MFSK, which is fine, but HRD does not process submodes).  Anyway, at least on the LotW side, QSOs are properly confirmed now, but HRD doesn’t recognize the confirmation, which means JTAlert has no idea what states have been worked — so everything is “new” to JTAlert until HRD fixes their log.

Anyway, after being off air for the entire month of July, it was nice to make a few QSOs today.

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