Honored to have contacted VP8STI

What an amazing DXpedition to two islands off the coast of Antarctica, South Sandwich, and South Georgia.  Despite the fact that it is summer there, it’s still one of the most inhospitable areas on the planet.  Case in point, from DX World today:

January 25 @ 07:20z –  Past night two tents and most of the yagis were destroyed by high winds. Both of their main tents collapsed partially and the team worked very hard through the night to save them. The Braveheart recorded winds of 70 mph (112 Kph). They are running only on 40 meters due antenna damage. Once they can assess damage they can determine whether they can proceed to South Georgia or not. Right now they are doing last QSO as VP8STI – they have asked the Braveheart to extract them when it´s possible. They regret that they have fallen short of their plans , however the team and crew safety is most important.

So as DX-chasers, we are sitting in our warm ham shacks, listening to a single station (and the occasional self-appointed DX police shouting “up-up”), while they are dealing with hurricane strength winds, blizzards, and trying to dig one callsign out of the thousands calling them at the same time.

  • Why do these folks put themselves in harm’s way?
  • How can they afford to do what they do?
  • Why do so many DX chasers moan and groan when things don’t work out?

I feel blessed to have worked them on two different bands.  And each time I made a contact I considered myself very lucky to have had some expert DX operator on the other end manage to hear my meager attempt over the top of howling winds and other hams. Believe me, 99.9999% of the skill and talent is on the far side of the contact.

VP8STI

NEWS UPDATE @ 21:20Z – Nigel Jolly, Braveheart owner, declared an emergency and ordered the VP8STI team to cease all operations and return to the ship. A large ice flow that had broken away due to last night’s storm starts to block the entrance to the Bay where they were camped. There was strong potential for the ice flow to prevent Braveheart reaching  them.

The Team is now safely aboard the Braveheart and they are moving away from Southern Thule Is. All equipment and personal gear is still on the island. They hope to return to camp site during next good weather window. Once they retrieve their equipment they could make a determination as to whether they can proceed to South Georgia to do VP8SGI as planned – VP8STI QRT !

 

 

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Goodbye Solar Cycle 24

Goodbye Solar Cycle 24, you were fun while you lasted!

Propagation is really impacting the K5P (Palmyra Island), VP8STI (South Sandwich Island), and VP8SGI (South Georgia Island), DXpeditions.

I note that solar levels appear to be somewhat higher than when I got back on the air five years ago, but that is somewhat misleading due to the “average” in the graph being a trailing one.  Still it looks like there is about another year before things really drop off, then five years of doldrums before things pick up again in Cycle 25.

SolarCycle24inJan2016

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First QSOs with K1

I finally had some time to hook the K1 up to a real antenna.  I gave 30 meters a whirl because that was where there was some transmit issues due to the wrong supplied toroid size, as well as the band where the periodic noise appeared to be the worse.

I had a nice QSO with John, YV5IUA on 10.114.0.  No problem at all with 5 watts output. If the noise was present, I wasn’t able to hear it above the regular atmospheric noise, and it certainly did not color John’s received signal in any way.  A QSO with Troy W4RPS on 14.039.8 followed, with similar success.

Two observations; upon installing the final metal covers, there was some slight shift in the VFO, and about 150 Hz shift in the transmit offset.  In addition, the maximum power level has dropped down to 5 watts, but only because the built-in power meter is now reading about 2 watts high.  In other words, it now thinks it is sending 7 watts, and reading 7 watts, but the reality is it is 5 out the connector.  The RF meter parts are very close to the metal covers, as is the cap used to set the offset.

The final assembly and verification took another hour.  So the total time for the complete K1 now stands at 27 hours.

K1 Done

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AUXCOM Certificate

The certificates for the AUXCOM class at the end of September were mailed out to the students this week.

Screen Shot 2016-01-02 at 4.40.03 PM

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K1 Assembly Complete

I completed and installed the two coils in 50 minutes.  I then spent another 40 minutes doing the TX tests and alignment.  That brings the total time to 25.75 hours.

The initial transmitter testing went well, with coils almost peaked already from the RF alignment on both 30 and 20 meters.  After TX offset calibration, I was able to produce 7 watts out on 20 meters, and the signal sounded great on a monitor receiver.  At 7 watts output the K1 is consuming 1.0 amps.

However, things aren’t so rosy on 30 meters.  While the 2.0 watt calibration went without a hitch, I was not able to produce more than 3.0 watts output (measured by both the internal meter and an external QRP meter).

My K1 Filter Board kit was shipped with 2 small toroids and 2 larger toroids, rather than 4 small toroids.  Those toroids form the output filters, which is not adjustable.  I spoke with Elecraft about that, they were confused as to why, but said to use the larger toroids on 30 meters.  I ran the math, and the larger toroids needed 2 fewer turns.  Elecraft suggested removing only one.  So that’s what I did.  These larger toroids were used on the 30 meter band. My initial suspicion is that the lack of transmitter power is due to problems with L9 and L10, the output filter.  Since that time, I’ve purchased some replacement cores, so I may just wind them again on the correct size toroid (if there is enough magnet wire left).

I was hoping the mystery noise would go away when everything was tightly screwed together, but it hasn’t, and it appears substantially worse on 30 meters.  I reprobed EVERY component lead mechanically and was not able to produce any noise.  I highly doubt it is a solder connection for that reason.  I still suspect bad power supply noise.  Now that the kit is complete, I’ll start to chase that down.

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Goals for 2016 and 2015 in Review

I completed almost all my 2015 goals.

  • Complete DXCC Challenge with 1000+ points YES (1136)
  • Complete 30m and 12m DXCC (7BDXCC) (80m seems unlikely) Yes – Bonus did 80 too
  • Complete 12m WAS (7BWAS) (a stretch to get DE and WV) No – But got 30 instead
  • Work 250 logged DX countries – Yes
  • Have 225 countries confirmed in LotW – Yes (241)
  • Complete firmware for satellite tracker – No
  • Hold two ham radio classes – Yes
  • Participate in four VE sessions – Yes

Another significant 2015 event was getting an article published in QST, an uncompleted goal from 2014

2016 Goals:

  • 255 Confirmed Countries
  • 1,200 DX Band-Points
  • WAS Completed on 12 Meters
  • Successful ARISS Contact at All Saints Academy
  • Teach a Technician Class for Monsignor Clarke Middle School
  • Teach a Technician Class Elsewhere
  • Complete my K1

My DX goals are less aggressive given the decline in the sunspot cycle, and frankly most of the easy ones have been worked, leaving me at the mercy of rare-one DXpeditions. Honestly I think that the 12 Meter WAS is a stretch given that almost no one is on that band anymore (even when there is 10 Meter activity).

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DX Standings at End of 2015

2015 was a pretty good year for DX.

At the beginning of 2015, I had just completed my fifth DXCC band (but not 80 meters), with 217 countries confirmed, and 918 Challenge points.

A year later, I have 245 confirmed countries (up 38), with both the official 5BDXCC plaque and DXCC Challenge plaques issued.  In addition, I have DXCC on 8 bands (plus WAS on 7 bands — I still need 12 meters).  My DXCC Challenge points stands at 1158

 

Final LotW 2015

EDIT:  Correct QSL in hand count down to 4, making total confirmations 245

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K1: All But Final 2 Toroids

Two hours and 5 minutes later, and the final transmitter components, with the exception of T3 and T4 have been installed.  Total time is now  24.25 hours.  It’s going to take an hour to wind those two remaining toroidal transformers, and to complete the transmitter alignment (actually just repeeking the inductors on the filter board).

K1 all but T2 T3

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Quad Hands — Helpful Holding Device

I’ve used a rather inexpensive “Helping Hand” source from China to help hold parts while I solder them.  That tool is a pain to use and not very effective.  So I’ve been looking for a replacement.  I ran across something called “Quad Hands” recently.  It has a heavy metal plate so it doesn’t fall over (the Helping Hand I had would only stay upright under the best of conditions).  The arms are much easier to adjust, and with four of them its rather easy to get things set just right.

It comes in and out of stock several times a year, so check back.

QuadHands

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RX Alignment Completed

I completed the VFO work and all the RX alignment steps (calibration, filter alignment) in 50 minutes.  All the tests and alignment steps went quite well.

The only problem I hear is obviously internal (hear it with antenna disconnected and 50 ohm shunt applied).  It is about S1 level, but it does modulate stronger signals.  To my ear it sounds like a digital communication process of some sort that is happening every 12 seconds.  (Brief burst, 1 second pause, 3 second burst; repeating every 12-13 seconds).

Bottom line:  A 1 uV signal is quite strong/clear on both 30 and 20 meters.

K1 RX Done

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