[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Propagation ranged from abysmal to poor.  QSB was slow and 
moderate.  Noise was quite low which is always a tip off.  Weather 
reports were pleasant.  Spring is hinting at summer.



  On 14050.5 kHz at 2200z:

K0DTJ - Brian - CA


  On 7047.5 kHz at z:

K6PJV - Dale - CA

K0DTJ - Brian - CA

WM5F - Dwight - ID


Until next week 73,

   Kevin.  KD5ONS



-






Let no young man choosing the law for a calling for a moment yield to 
the popular belief — resolve to be honest at all events; and if in your 
own judgment you cannot be an honest lawyer, resolve to be honest 
without being a lawyer.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The ongoing geomagnetic storm has dropped to G1.  Tomorrow they are 
predicting another round at the G5 level.  Communications below 30 MHz 
will probably be impaired.  Hopefully the two nets will be unaffected 
during a lull between CMEs.


   The snow from last week was replaced by a few days of 80 degrees.  
The daffodils had an eight week run so they did pretty well.  I noticed 
a tiny hummingbird this morning.  It took a few moments, processing a 
stack of memories.  "The same thing happened last year."  The Anna's 
Hummingbirds have returned with the heat. There are plenty of tiny 
insects for them to eat.  Keeps them from eating me.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-








In one faculty, at least, there can be no dispute of the gentleman's 
superiority over me, and most other men; and that is, the faculty of 
entangling a subject, so that neither himself, or any other man, can 
find head or tail to it.






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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has been a cold, wet, snowy week.  My daffodils look fresh due to 
the chill.  They last for weeks during the end of winter. Birds are 
settling in.  A few woodpeckers are making homes.


   The sun is very active.  Multiple CME hits and near misses, with 
another due tomorrow.  A variety of flares blacked out RF too.  We may 
be able to communicate tomorrow, or I could hear a steady roaring sound.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.quantamagazine.org/how-a-nasa-probe-solved-a-scorching-solar-mystery-20240429/

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Spring is progressing.  I finally saw the hummingbird which is 
emptying the feeder.  I also saw a doe with a yearling eating their way 
across the new undergrowth.  Their winter coats make them quite 
visible.  They were back again today.  Then the doe found a dry spot 
under a cedar tree and napped all afternoon. Around 5:30 she shook 
herself and got back to eating.


   The sun has been quite active this week.  Multiple CMEs were 
created, some of them hitting the earth, some passing close by. The 
ionosphere is well fed with ions and rather unstable. Conditions could 
change quickly because more CMEs are due at any moment.  Propagation may 
prove challenging.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-





If you could say it in words there would be no reason to paint.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was partly sunny and cool all week.  Currently it is windy.  My 
view is much greener.  More flowers but no hummingbirds at the feeder.  
It has stopped snowing so they should show up soon.  The daffodils are 
all open with a few trilliums here and there.


   The ionosphere is still be shaking after the pounding it took from 
yesterday's CME.  A large sunspot group is sending a lot of ions our 
way.  It is not as strong as it was the last time it showed up.  Still 
mixed field groupings but it has lost some of its vigor.  I expect noise 
and QSB to test our mettle.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-



   I was reading about stellarator design when I learned the coordinate 
system of a torus.  One axis is called toroidal while the other is 
called poloidal.  Just in case you ever need to describe an exact point 
on a torus.  Then I thought about how it would work in Scrabble: id - 
oloid - poloid - poloidal  A good, additive series.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Spring is mostly here.  More flowers, more birds, more pollen, and 
more bugs.  Sun appears more often these days.  However, more snow is 
due on Tuesday.  Frosty nights kill off the biting flies, I appreciate 
being eaten less.


   The sunspot number is below 100 but the sun is quite active. A few 
smaller CMEs are bouncing off the magnetosphere causing some aurora, 
QSB, and hissing.  The large, active sunspot group from two weeks ago is 
coming back.  By Monday it should be changing propagation again.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.quantamagazine.org/viruses-finally-reveal-their-complex-social-life-20240411/




Which is why Americans only sing in four part harmony to
this very day. That proved to be too dangerous. See, what
they did was they'd be singing these songs called Clam
Chanties, and they'd have these big spears called clampoons.
And they'd be walking up and down the beach and the method
they eventually devised where they'd have this guy, the
most strongest heavy duty true blue American, courageous
type dude they could find and they'd have him out there
walking up and down the beach by himself with other chicken
dudes hiding behind the sand dunes somewhere.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Some weeks nothing goes right, this was not one of them. Light rain 
then sun and mild temperatures.  More flowers and more birds.  Snow is 
melting above me so streams are full.  The ground was dry enough to let 
me check the forest.  I have much less damage than my neighbors.  Their 
trees are quite a bit younger, they snapped where green wood met more 
mature timber.  Clear growth assures trees will survive; any kinks or 
forks can be fatal to them.


   The sunspot number is low and the flux rate is lower too. However, 
the sun has been quite active this week.  There is still a possible 
earth effective flare from 3615.  I expect a more quiet band than we 
have had lately.  Less roaring.  There may even be less QSB.  But there 
should be no whistling from clouds of protons, or hissing from high 
speed electrons.  Just normal random noises with (hopefully) more 
ordered Morse code.  If the gaps in the noise are rhythmic enough you 
are easy copy :)




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-



Imagine sunrise on a toroidal planet.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The last bit of snow melted yesterday.  Winter may be done, spring 
can take over.  A few daffodils are turning yellow.  They should open 
this week.  Many birds have returned, some of them have started to 
nest.  I saw a Steller's Jay collecting moss from a nearby limb.


   There are two CMEs aimed at earth.  One of them will hit tomorrow, 
the other the following day.  One sunspot group is spawning more spots 
with mixed magnetic fields.  A persistent X class flare lifted one of 
those coronal ejections.  The bands should be noisy with many types of QSB.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://spaceweather.com/

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was sunny and warm today.  Most of the snow has melted so I went 
for a walk to check the damage to the forest.  A few dozen broken trees 
ranging from ten inches in diameter to twenty.  Their trunks exploded 
into many shards around thirty feet up.  Only the Doug fir shattered; 
cedar and hemlock trees are unharmed.  Some birds returned and daffodils 
are growing though the remaining snow.


   The sun looks almost bare but the flux is still high.  A rain of 
protons is absorbing RF around the poles.  There was a strong flare from 
a sunspot not yet facing Earth.  Propagation should be OK tomorrow, with 
plenty of QSB and a steady hiss from the ion flow.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




   NACA, the National Advisory Committee for Aeronautics, was the 
precursor to NASA.  During the 1920s they codified airfoils with four 
digit numbers.  I wrote some code to give me the coordinates of an 
airfoil surface from their equations.  I created a dozen airfoil 
profiles to place into my wind tunnel code.  Screen shots of the results 
are here:    http://bacona.design/tunnel.html


   And now for something completely different:

https://www.quantamagazine.org/ocean-bacteria-reveal-an-unexpected-multicellular-form-20221102/

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The snow is no longer in the trees.  It has all fallen after pruning 
the forest.  A few small trees are down, a few large tops, lots of 
branches, thousands of cones, and millions of fir needles.  A good 
supply of lichen is on the snow attracting the deer.  Squirrels are busy 
processing the cones.


   The sun is active with a new crop of sunspots.  The sunspot number 
is below 100 but some of them have mixed magnetic fields. Those are 
always interesting.  A few glancing CMEs during the week and another due 
quite soon.  I expect a variety of types of QSB.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-





It is a cold winter,
Away is the songbird.
And gone is her traveler,
She waits at home.

The sun is on holiday,
No leaves on the trees.
The animals sleep
While cold North wind blows.

The snowflakes are falling,
The roof a white blanket.
There's ice on the window pane,
She waits alone.

She sits by the fireside,
The room is so warm.
Her children are sleeping,
She waits in their home.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Spring is coming: fifty degrees and sunny followed by six inches of 
snow.  I saw a few daffodil shoots which always precede the last 
snowfall.  If it happens before they are too tall they don't mind.


   The sun is very active this week; one large sunspot especially so.  
Three X class flares so far.  A grazing CME is due tomorrow. AR3590 will 
be geoeffective for another week.  Expect a few more RF blackouts.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-







I do not think there is any thrill that can go through the human heart 
like that felt by the inventor as he sees some creation of the brain 
unfolding to success... such emotions make a man forget food, sleep, 
friends, love, everything.



https://www.quantamagazine.org/a-lobby-where-a-molecule-mob-tells-genes-what-to-do-20240214/

https://spaceweather.com/




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The sun had an active week sending numerous flares and CMEs. There 
were a few RF blackouts but the CMEs mostly missed us. There are fewer 
sunspots though plenty of ions are flowing our way.  Expect a variety of 
QSB, some ion static, and those odd noises which whistle through the bands.


   My forecast ranged from no snow to six feet of it.  Reality settled 
on six inches which did not survive the following heavy rain.  The fir 
trees are happy, the ground is quite soggy.  No hummingbirds yet but 
they react to my Christmas cactus which just started blooming.  They 
can't be far off, the snow probably kept them at lower elevation.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-





   Fortunately there is another way to arrive at solutions that can be 
written down explicitly.
Just restrict the possible solutions to a certain class of continuous 
vector fields that can be
described by a finite number of values. From such a restriction it 
follows that in the general
case, a solution computed in this way will only be an approximation of 
the true solution.
Ideally the restricted solution is the one within the restricted class 
of vector fields that is

closest to the true solution.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The sun is quite active.  One large sunspot group has flared a few 
times.  A CME is on the way due the 13th.  That sunspot group has a mix 
of magnetic fields which creates an unstable region. Anything launched 
in the next few days will be in our direction. I listened on 80, 40, 20, 
and 15 meters.  There were a lot of signals on each band; noise 
increased as the frequency went up.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-






Big whirls have little whirls,
That feed on their velocity;
And little whirls have lesser whirls,
And so on to viscosity.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The last few days have been sunny and mild.  Today I walked most of 
my southern, western, and northern boundaries.  The seasonal stream in 
the NW corner is flowing with one to two inch waterfalls.  Just off the 
edge of the property it descends into the canyon below.  There is a good 
flow through that area but it is quite steep.


    The sun has sent us a few CMEs this week.  One may graze the the 
earth tomorrow.  There are more sunspots than last week with a higher 
flux rate.  I expect more noise but fair to OK propagation.


Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-





Poetry surrounds us everywhere, but putting it on paper is not so easy 
as looking at it.



https://www.quantamagazine.org/the-part-of-the-brain-that-controls-movement-also-guides-feelings-20240123/

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

    It may have stopped raining for a few minutes this week, the fog 
was persistent.  Yesterday the last of the snow succumbed.


   The sun is taking a short break.  No CMEs are currently due.  The 
sun spot number dropped below 100.  It looks bare but I doubt that will 
last long.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-






www.quantamagazine.org/the-quest-to-decode-the-mandelbrot-set-maths-famed-fractal-20240126/


One who puts on his armor should not boast like one who takes it off.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   After a series of very cold days winter has returned to normal.  In 
other words it is raining, foggy, and the snow is melting.  I expect the 
snow to be gone by Wednesday at this rate. The storms shook the trees 
and filled the snow with seeds.  Now birds are taking advantage by 
eating them as they are exposed.


   The sun has been quiet for two weeks.  That string was broken today 
by an earth directed CME due on the 22nd.  Tomorrow's nets should have 
low QSB with moderate levels of noise.  The sun set here today at 5:01 
PM.  Propagation on forty meters changes during the 40 meter net due  to 
the sun angle.  The next month will show even more change.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-





“You can’t talk about the ocean to a frog living in a well"



https://www.quantamagazine.org/the-quest-for-simple-rules-to-build-a-microbial-community-20240117/



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Winter got cold this week.  Currently it is 15 degrees F with fresh 
snow falling.  It is supposed to get marginally warmer by tomorrow.  
Sleet was falling earlier, which seems odd considering the temperature.  
It must be near freezing wherever it was formed.


   The sun is active.  A few near miss CMEs will affect our magnetic 
field.  There will be a few shades of QSB.  The North American QSO Party 
(CW version) runs from 1800z January 13th to 0600z January 14th.  I may 
not be able to find room to run either net.  We shall see.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-






Knowing ignorance is strength, ignoring knowledge is sickness




RIP Gonzalo


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has been cool, wet, and foggy.  Today it snowed for a while.  
Some of it stuck.  The sun rose above my southern horizon today.  It 
hides behind the mountain for a few weeks around the solstice, 
increasing the gloom factor.


   The sun looks uncluttered, but it is pretty active.  At least two X 
class flares shut down shortwave this week.  However, there are no CMEs 
currently heading our way.  We should have quiet conditions with mild 
QSB tomorrow.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-







Long ago, when the world was young, porcupines had no quills. One day 
when Porcupine was in the woods, Bear came along and wanted to eat him.  
But Porcupine climbed to the top of a tree and was safe.  The next day, 
when Porcupine was under a hawthorn tree, he noticed how the thorns 
pricked him.  He had an idea.  He broke off some of the branches of the 
hawthorn and put them on his back.  Then he went into the woods and 
waited for Bear.  When Bear sprang on Porcupine, the little animal just 
curled himself up in a ball.  Bear had to go away, for the thorns 
pricked him very much.


Nanabozho saw what happened.  He called Porcupine to him and asked, "How 
did you know that trick?"


"I am always in danger when Bear comes along," replied Porcupine. "When 
I saw those thorns, I thought I would use them."



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The weather has been mild and wet, with a few minutes of sun. I am 
seeing more hunters than elk.  A longer range forecast has snow in a few 
weeks from a cold front moving south.  Power was out for a few hours due 
to high winds breaking lines from Bonneville Dam.  Good thing my laptop 
is filled with reading material.


   The sun is lightly speckled with slumbering sun spots.  There is a 
chance for a G1 class storm arriving January 1st.  Hopefully it will not 
hit during the first hour of the new year.  Both bands should be quiet.  
QSB will probably be light and slow.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)

73,
  Kevin.  KD5ONS





-











You thought the leaden winter
Would bring you down forever
But you rode upon a steamer
To the violence of the sun

And the colors of the sea
Bind your eyes with trembling mermaids
And you touch the distant beaches
With tales of brave Ulysses
How his naked ears were tortured
By the sirens sweetly singing



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was the day before the day before Christmas.  The clouds settled 
into the valleys with the sun skimming the southern horizon.  It held 
little warmth due to the grazing angle.  My walk was more brisk than 
usual to generate some heat.  However, I did not startle a bird, deer, 
or elk.  Too cold for the spiders to parachute from the trees, but there 
were no insect flying either.


   The sun is active with a number of large sunspot groups.  In a week 
a very large and unstable group is going to point in our direction.  The 
new year will begin with a number of flares, maybe into the X class.  
2024 will be interesting.  Tomorrow we may miss another CME and have 
good conditions.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-






The stranger at my fireside cannot see
The forms I see, nor hear the sounds I hear;
He but perceives what is; while unto me
All that has been is visible and clear.

We have no title-deeds to house or lands;
Owners and occupants of earlier dates
From graves forgotten stretch their dusty hands,
And hold in mortmain still their old estates.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Terrestrial weather has been partly sunny, windy, and chilly. Solar 
weather was more intense.  Multiple CMEs are on the way spawned by a 
single sunspot.  One of them is from the X class flare which blacked out 
communications earlier this week.  One, or a mix of two, is due within 
the day.  The ionosphere will be flexing tomorrow.  I expect there to be 
an unsteady hiss with moderate to deep QSB.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-







"If you think life is a zero sum game you're doing it wrong."



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   There were brief pauses in the rain this week.  Sometimes the breaks 
were sunny.  Other times there was snow.  Snow line keeps moving up and 
down past me so any accumulation is temporary.


   The sun has a few large, active sunspot groups.  There are no 
predicted CMEs.  Signals should be fairly good, with some QSB and a 
steady hiss.  It will be dark here when the forty meter net begins.  
Conditions should be good then.  Let's see.


Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-





-- we can not hallow this ground.  The brave men, living and dead, who 
struggled here, have consecrated it, far above our poor power to add or 
detract.  The world will little note, nor long remember what we say 
here, but it can never forget what they did here.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has been mostly sunny but cool.  The first snow of the season 
fell yesterday.  Early in the week I heard branches breaking so I went 
outside for a look.  A herd of elk was spread through the forest.  The 
younger elk were chasing each other around the clearest areas breaking 
rotting slash.  Two dozen cows were busy ignoring them and eating.  A 
medium sized bull was trailing the group.


   A cannibalistic CME  struck our ionosphere this week, many prominent 
aurora glowed in both hemispheres.  More CMEs are coming due to a number 
of active sunspot groups.  There is also a hole in the sun's atmosphere 
aimed right at us.  The sun is no longer quiescent; the next few days 
should prove noisy.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-




"For, in the final analysis, our most basic common link is that we all 
inhabit this small planet.  We all breathe the same air. We all cherish 
our children's future.  And we are all mortal."


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

    It was a much less gloomy week.  In fact it was downright sunny.  
Cold though, at least for here.  Last night it dropped into the high 
teens.  It did get above freezing today but not by much.  The bird basin 
has not thawed.  The elk have carved a new path just inside a younger 
stand of trees nearby.  The hunters have been plentiful so they change 
their habits and don't cross the roads until well after dark.


   The sun is quite speckled, active with current and impending 
events.  The sunspot number and the solar flux are both high, 184 and 
178 respectively.  We are also in the midst of the CQ WW DX contest.  I 
may not be able to find an open space for the twenty meter net.  
However, the contest will terminate right at the forty meter net's 
time.  Again, I will seek an open frequency.




Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-





   I am teaching a multi-layered, cylindrical, spring-node mesh how to 
be elastic. These are the elastic functions, based on Hooke's law and 
Newton's first.  I will merge a few of the loops to hasten recovery 
time.  I have implemented a heat gradient function for various heating 
(cooling) geometries to add some color.  Now to invent some creative 
impulse functions to deform the mesh.



float Req = 15.0;                                       // Radial 
equilibrium spacing between nodes
float Teq = 10.0;                                        // Torsion 
spring spacing at equilibrium
float Aeq = 20.0;                                       // Axial spring 
spacing


void map( void )                                        // accumulate 
applied forces

    {
    float RLc, RGc, TLc, TGc;                       // local, global 
change rotation, torsion

    struct node *tmp;                              // shorten name
    struct node *m1 = m1head;              // M1 node buffer

    // Axial
    struct pt L, R;                                    // left, 
right force vectors
    float Ka = 0.95;                                 // Axial 
spring constant

    for(int k=0; k    for(int j=1; jguard ends

        for(int i=0; i            L = vecMinusVec( tmp->X, (m1 +k*leng*ring +(j-1)*ring 
+i)->X );
            R = vecMinusVec( tmp->X, (m1 +k*leng*ring +(j+1)*ring 
+i)->X );


            float mag1 = Aeq - length( L );    // L magnitude
            float mag2 = Aeq - length( R );    // R magnitude
            tmp->FA = vecMult( vecPlusVec( scale( L, mag1 ), scale( 
R, mag2 ) ), Ka );

            }

    // Radial
    struct pt C;                                        // center 
of this ring
    struct pt N;                                        // 
temporary line segment
    struct pt In, Out;                                // vector to 
inner, vector to outer
    float Kr = 0.33;                                  // radial 
spring constant

    for(int k=0; kX.x, 0, 0); // at i=0;
        for(int i=0; icylinder

            {
                // Extract node location
            N = (m1 +k*leng*ring +j*ring +i)->X;

                // Difference between N and the next inner cylinder
            if( k==0 )
                In = vector(0.0, 0.0, 0.0);      // inner node
            else
                In = vecMinusVec( N, (m1 +(k-1)*leng*ring +j*ring 
+i)->X );

                // Difference between N and the next outer cylinder
            if( k==thick-1 )
                Out = vector( 0.0, 0.0, 0.0 ); // outer node
            else
                Out = vecMinusVec( (m1 +(k+1)*leng*ring +j*ring 
+i)->X, N );


                // Calculate local and global differences
            RLc = length( Out ) - length( In );
            RGc = (r0 +k*Req) - length( vecMinusVec( N, C ) );

                // Radial restoring force
            (m1 +k*leng*ring +j*ring +i)->Fr = Kr * ( RGc + RLc );
            }
        }

    // Torsional
    float Dm, Dp;                                       // angle to 
neighbor -/+ directions
    float Kt = 0.37;                                    // 
torsional spring constant

    for(int k=0; k    for(int j=0; jcylinder
        for(int i=0; icylinder

            { //        { 0 <= ring <= 35 }
            if( i-1 == -1 )                       // guard 
-1 = 35        -1 = ring-1
                Dm = (360.0 + (m1 +k*leng*ring +j*ring)->pa) - (m1 
+k*leng*ring +j*ring+35)->pa;

            else // angular distance to previous node
                Dm = (m1 +k*leng*ring +j*ring +i)->pa - (m1 
+k*leng*ring +j*ring +i-1)->pa;


            if( i+1 == ring )                        // guard 
36 = 0        i+1 = 36
                Dp = (360.0 + (m1 +k*leng*ring +j*ring)->pa) - (m1 
+k*leng*ring 

[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The week was mostly sunny with temperatures below 50F.  Warm enough 
for a new crop of mushrooms but too cold for spiders.  The alder have 
lost their leaves, now the mosses are glowing bright green.  More light 
and rain lets them progress to their diploid phase.


   The sun is almost bare.  Solar flux is lower but still sufficient.  
There is a CME on the way, due some time tomorrow. Next week the first 
of two large sunspot groups will rotate into view.  Solar flux will 
rise.  Expect more ions.




Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-





Back into the chamber turning, all my soul within me burning,
Soon again I heard a tapping somewhat louder than before.
“Surely,” said I, “surely that is something at my window lattice;
Let me see, then, what thereat is, and this mystery explore—
Let my heart be still a moment and this mystery explore;—
’Tis the wind and nothing more!”

Open here I flung the shutter, when, with many a flirt and flutter,
In there stepped a stately Raven of the saintly days of yore;
Not the least obeisance made he; not a minute stopped or stayed he;
But, with mien of lord or lady, perched above my chamber door—
Perched upon a bust of Pallas just above my chamber door—
Perched, and sat, and nothing more.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has been a wet week.  The sun did come out for a few seconds but 
the rest of the time it has been foggy, rainy, and gloomy.  Almost all 
of the bracken ferns are yellow, gold, or bronze.  Leaves have mostly 
changed to some shade of yellow with a slight tinge of orange.  Birds 
are scarce.


   The sun is fairly blank but still active.  Last Sunday there was a 
large CME which disrupted Sweepstakes.  Another CME is due today though 
it is not as strong.  There are aurora but with constant cloud cover it 
is hard to see them.  I am also too far away from the magnetic North 
pole to see them on a regular basis. I grew up in Wisconsin where the 
light show was common and often intense.  Viewing them over time gives 
you a good look at how the magnetic field is structured.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-




So even though we face the difficulties of today and tomorrow, I still 
have a dream.

It is a dream deeply rooted in the American dream.
I have a dream that one day this nation will rise up and live out the 
true meaning of its creed:

We hold these truths to be self-evident, that all men are created equal.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The week was foggy and wet until yesterday.  Then skies cleared and 
the temperature dropped to 25F.  Today was perfect for kicking up 
grouse, but I saw none.  In fact I saw or heard very few birds.  The 
mushrooms were showing a lot of frost damage.


    The sun is active but mostly bare of sunspots.  Solar wind will 
cause some aurora, add hiss, and a little QSB.  There is a CME en route 
which may or may not miss.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-





A people without a history is like the wind over buffalo grass.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   More color changes and fewer leaves let me see the birds more 
easily.  During a burst of heavy rain I watched a number of Varied 
Thrushes using transient puddles to wash up.  I thought birds sat under 
cover when it rained; they were enjoying the downpour.


   Two CMEs may hit today.  The sun is mostly bare.  There is a lower 
rate of flux too.  The bands should both be capable of comms.  There may 
even be less QSB if those CMEs don't hit us. Dense fog slows or stops my 
Internet connection though HF gets through OK.


    Twenty meters has been open to middle California for the last few 
weeks.  Which of those 100 new KH1s will be the first to check in with 
us?  Forty meters is open too if you want to test the user interface, or 
my hearing.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-




What I say to you, I say to everyone: ‘Watch!’

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a wet chilly week while I explored unproductive paths. Now 
that I've mapped the dead ends it will be easier to find the correct one.


   The forecast is for no CMEs and no solar flares.  The ionosphere 
will get a chance to calm down a little.  Less QSB is nice.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




Whoever is not against us is for us.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I have seen a few groups of geese flying south.  Some are flying in 
V formation, but most are not.  The elk are taking advantage of the 
paths I opened; the ground is chewed up with hoof prints.  A bobcat or a 
mountain lion is using the same path. There are more color changes in 
the deciduous species.


   The sun has been active all week.  A CME is due to strike some time 
today.  Ten, twelve, and fifteen meters are open.  DX chasers are 
flocking.  We are near solar maximum, a magnetic pole swap is imminent.  
Late summer storms will cause some static while the oscillating 
ionosphere will add QSB.  Tomorrow's nets should be fun :)



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




I added a few features to my 3D engine.  Now it models 1/4 wave 
verticals and 1/2 wave dipoles.  I animated the display using height as 
the variable.  Then I made a video.  Click on the first one if you are 
brave (or bored).


http://bacona.design/video.html



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The rainy season began early this year; the last week was chilly, 
foggy, and wet.  The sun returned today highlighting new color changes.  
With temperatures dropping to the mid 30s some shrubs are getting ready 
for winter.  Some crows were ridge soaring over me today.  With their 
slender wings they can't hang in one place very long.  They made 
multiple passes instead.


   The solar forecast is for calm and steady conditions.  I expect 
thunder storms to modify that prediction.  But low QSB would be nice.  
The skies will be clear for a few days so no local lightning.  The rain 
has cleared the air.  I just noticed I am not smelling burning forest.  
Cooler weather helps the fire fighters get ahead of their quarry.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.quantamagazine.org/what-makes-life-tick-mitochondria-may-keep-time-for-cells-20230918/https://www.quantamagazine.org/species-repulsion-enables-high-biodiversity-in-tropical-trees-20230913/




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I took advantage of the cool week to trim a few dozen trees. I cut 
all the branches within reach of my limb loppers.  Now the elk trail is 
easier to traverse; the deer should follow it too. It began with me 
clearing the WiFi path.  Now I have more paths for wire antennas along 
with a better view.


https://spaceweather.com/   The sun is active.  The folks at 
spaceweather.com cannot keep track of the many CMEs tossed our way.  
Their forecast is for one or more strikes tomorrow.  Ten meters is open, 
with all the ions flowing I expect 6 meters is too.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.quantamagazine.org/behold-modular-forms-the-fifth-fundamental-operation-of-math-20230921/

https://www.quantamagazine.org/what-makes-life-tick-mitochondria-may-keep-time-for-cells-20230918/


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I was pruning begonias when an Oregon Nuthatch landed on the lip of 
the water basin next to me.  Three common species are the Oregon Junco, 
the Oregon Chickadee, and the Oregon Nuthatch.  Each of them has a patch 
of rusty brown on them.  Otherwise they are like their cousins out 
east.  It is starting to smell like fall, the birds are dropping lower 
in the trees.  Squirrels are racing along the highest limbs freeing them 
of their cones.  As they fall they bounce off of every limb beneath.  
Great dispersal mechanism, but you need a hardhat to walk around.


   The sun snuck a CME into the flow of earthward ions.  It is due 
tomorrow so there may be a blackout, or there may be more noise, or 
there could be more QSB.  We shall see, it could miss us entirely.  Kind 
of like those cones falling from the sky.  I will switch between my 20 m 
dipole and the 40 meter vertical.  The reason I have not used a dipole 
for the net is because they are too directive.  An inverted V grabs a 
wider swath and sends a weaker signal.  One of those engineering trade 
offs where there are no real winners, only compromise.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




  I banged on some code until it mostly works.  This is a video of the 
direct contribution to the electric field of a resonant one-half 
wavelength horizontal dipole.  It starts with a series of still shots 
taken as I edited, compiled, and ran the application for a sequence of 
heights above ground.  Then I demonstrated the application at yet 
another height.  Finally I recompiled with a vertical (monopole) antenna 
pattern.  I am currently working on code for the reflected portion of 
the E field.  If I map the direct and reflected parts separately, then 
add them together with a ground reflectivity coefficient, I can model 
the E field over various soil types.


http://bacona.design/video.html    topmost video.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   After a wet, cool week today feels very nice.  Sunny skies, no wind, 
temperature rose to 79 F.  It is nice to walk outside without the bugs 
around.  The spiders eat them.  The Canada jays are migrating to lower 
limbs eating more bugs.  A few followed me around today as I inspected 
the cleared area.  Elk found the opening last week and are locating 
what's edible.


   The sun did not send many flares this week, but there is a steady 
stream of ions on the way.  When the sun dried things out I laid my 
newly built antenna on the roof, routed some coax from the outside into 
the radio room, and knotted guy rope on either end. I tied one end to 
the rope holding up my 1/4 wave vertical.  I tied the other end to the 
rope holding up my other vertical antenna.  Thus I did not need to waste 
a day shooting, and losing, sinkers to guide leader lines.  I have never 
tried a resonant, flat topped dipole before.  I've always had a rope at 
the feed point as well as one at both ends.  This normally gives me an 
inverted V.  So this antenna is more directive.   It favors a swath from 
Upper Michigan down to northern Florida.  On RBN I find a 6 dB 
difference between my 1/4 wave vertical and this new dipole.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.quantamagazine.org/how-scientists-are-tackling-the-tricky-task-of-solar-cycle-prediction-20230907/

https://www.quantamagazine.org/quaking-giants-might-solve-the-mysteries-of-stellar-magnetism-20230821/

https://www.quantamagazine.org/the-tiny-physics-behind-immense-cosmic-eruptions-20230515/




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Rain gave the soil a fresh, spicy scent due to its heritage. The 
last of the large cedar trees were cut before WWII but the soil is made 
from generations of their needles and fallen timber. I took my laptop 
out into the forest to call a Pileated woodpecker.  He flew in and gave 
his response.  Kind of like a CQ :)


   The sun doesn't look very active, but it sent a cloud of ions which 
is causing a geomagnetic storm.  Tomorrow another two CMEs are due to 
strike.  Conditions should be interesting.  However, perfect conditions 
are for tall tales.  I began listening to shortwave a little after 1957 
when signals were very good.  I learned to send and receive CW on my 
Elecraft K2.  In both cases I was spoiled.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-





It is not the healthy who need a doctor, but the sick.






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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a cool week with some fog, then a thunderstorm with an inch 
of rain.  The forest enjoyed the moisture.  Some of the ferns are 
turning yellow from a few 30 degree nights.  Smoke has returned but not 
as thick as it was last week.


   The sun continues to be moderately active with no X class flares 
predicted.  Solar flux is still high, it is simply less unsteady.  
Nonetheless, there should be QSB and some hissing.  The sun is rapidly 
moving southward.  Sunset is at 8:02 PM, forty minutes earlier than at 
the beginning of August.


   I posted the code necessary to calculate the electric field around a 
1/2 wavelength dipole antenna.  It will be used to create 3D mesh models 
of antenna radiation patterns; then animate them as the user changes any 
one of seven variables.  I have similar code for 1/4 wave verticals and 
1/2 wave loop antennas.  Animating antenna radiation patterns should be 
fun, the UI building less so :)


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




// dipole.c
// K. J. Rock
// August 25, 2023

// g++ -o dip dipole.c

#include 
#include 

#define ETA  376.991118308            // characteristic impedance of 
free space

#define RAD 0.017453293                    // radian to degree
#define PI  3.1415926535             // cherry, of course
#define TWOPI  6.28318530718           // Katzenjammer feast
#define PIOVR2 1.57079632679       // slipped from sill

int main( void )
    {
    float f = 100;                     // frequency in MHz
    float lambda = 300 / f;              // wavelength in meters
    float l = lambda / 2;  // length of antenna 
in meters

    float k = TWOPI / lambda;     // save some space
    float h = 1.0;                         // height of 
antenna in wavelengths
    float I0 = 2;                       // maximum 
current in amperes
    float r = 1000;               // distance from 
antenna to observer in meters

    float dTheta = 20.0;              // azimuth step size
    float dPhi = 5.0;            // elevation step size
    float scale = 1.0;                   // fudge factor 
for display purposes


    for (float theta=0; theta<180; theta += dTheta)        // azimuth
  {
  for (float phi=0; phi<360; phi += dPhi) // elevation
  {
  float radius = scale * (ETA * k * I0 * l * sin(k * r)
         * sqrt(1 - sin(theta*RAD-PIOVR2) * sin(theta*RAD-PIOVR2) * 
sin(phi*RAD) * sin(phi*RAD))

     * sin(k * h * cos(theta * RAD-PIOVR2))) / (TWOPI * r);

  printf("%7.4f ", radius );           // E(θ,φ)   in 
Volt/meter  or Newton/Coulomb

  }
  printf("\n");
  }

    return 0;
    }




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The sun has numerous, complex sunspot groups.  Curiously no strong 
flares are expected.  That is an interesting point of view :)  Flux is 
high and the auroral oval is bright.  I expect a steady hiss interrupted 
by lightning static.


  Each morning this week the sky was red.  Haze from the forest fires 
blew in after three days of hot weather.  A cool breeze feels good 
although it is moving the smoke toward the Pacific. Rain would be nice 
but that's at least a month away.  A foggy morning would lessen fire danger.


   I found the Gray Jays.  In the winter they are common at the feeder 
and water basin along with Steller's Jays.  In April they disappear.  I 
started seeing immature Gray Jays when they dropped on the roof during 
flight training.  That got me watching what is going on above me.  The 
Steller's Jays stay mostly in the lower branches.  The Gray Jays 
migrated upward into the mid to high canopy branches, 70 to 100 feet 
above me.  I knew Band-tailed Pigeons lived up there, while crows visit 
now and then.  Now I know the Gray Jays move up during spring and 
summer.  I need to note when they drop down again.  Scrub Jays do not 
live at this elevation.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://www.allaboutbirds.org/guide/Band-tailed_Pigeon/overview

https://www.allaboutbirds.org/guide/Canada_Jay/overview

https://www.allaboutbirds.org/guide/Stellers_Jay/overview

https://www.allaboutbirds.org/guide/California_Scrub-Jay/overview


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I searched for the name of the shrub outside my window.  It feeds a 
lot of birds.  I found oceanspray on the gardening link below.  I have 
mentioned thimbleberries and huckleberries.  The next link has a photo 
of thimbleberries.  I found a few sites for red huckleberries too.


   The sun sent a few CMEs past us this week.  An X class flare caused 
a radio blackout so the ionosphere is well charged.  Solar cycle 25 is 
exceeding predictions.  Another three to five years of high solar 
activity is possible.  The sun angle is changing quickly, forty meters 
may work a little better tomorrow.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




https://frontierlandscaping.com/top-pacific-northwest-native-shrubs-for-your-garden/

https://www.backyardgardenlover.com/oregon-native-plants-list/

https://realgardensgrownatives.com/?p=5795

https://nativeplantspnw.com/red-huckleberry-vaccinium-parvifolium/



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a pleasant week.  Temperatures rose to the low 80s. Humidity 
is high for the summer, around 60%.  There was no rainfall but clouds 
touched the mountain for a while which is sufficient.  Thimble berries 
and huckleberries are doing well.  I have been sampling them one by 
one.  Black raspberries are still in the future but it won't be long.


  The sun is well speckled and active.  We are currently between CMEs.  
The next is due on Tuesday.  I am hoping for Midwestern thunderstorms.  
They give me a measure of signals and provide a respite from their 
droughty conditions.  I started smelling smoke around noon, this is the 
first time since mid April.  Wind has been keeping it from NW Oregon.  
Solar flux should support comms. It will be another month before 40 
meters reacts well at z.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-


https://firesmoke.ca/forecasts/current/


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The sun has been active this week.  Earlier today there was a radio 
black out due to a cloud of protons hitting the ionosphere. An earth 
directed CME will follow in a couple of days.  Spot 3384 may flare 
soon.  I hope to hear a few thunderstorms tomorrow.


  Weather has been mild this week with a few mornings of fog, one of 
them turned into slow rain.  The local berry crop is doing well.  
Thimble berries ripening but not plentiful, strawberries scarce and 
overripe, blackberries common but not yet ripe, huckleberries fairly 
common and ripe, salmon berries mostly gone, Oregon grapes, tasty if you 
don't mind seeds, about a month away.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




Cosmogenesis simulation using ~24,000 processors for one month of 
computer time.


Begin with a universe of hydrogen gas.  Add gravity and observe for a 
few billion years.


https://scx2.b-cdn.net/gfx/video/2018/astrophysici.mp4

https://www.tng-project.org/movies/tng/tng50_sb2_gasvel_stars_1080p.mp4

https://www.tng-project.org/media/

A little Japanese metal: https://www.youtube.com/watch?v=prSTQZZG-WA    
25:00 is good




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was sunny and warm this week.  I spent four days with saws 
improving my 2.4 GHz signal path.  When we reset the dish earlier this 
year the alder did not have leaves.  They grew to full size blocking the 
path.  Now they are felled, limbed, and stacked; ready for the wood 
stove by winter.  My work opened space for an inverted V, or doublet, 
and more sun.


   The sun tossed a few weak CMEs at us and is still spawning active 
sunspot groups.  Oddly enough quiet conditions are predicted for this 
weekend.  However, sunspot 3373 could send an X-class flare.  May you 
live in interesting times :)  I have my trusty transceiver with working 
antennas to test conditions.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-






Mountains should be climbed with as little effort as possible and 
without desire. The reality of your own nature should determine the 
speed. If you become restless, speed up. If you become winded, slow 
down. You climb the mountain in an equilibrium between restlessness and 
exhaustion. Then, when you’re no longer thinking ahead, each footstep 
isn’t just a means to an end but a unique event in itself.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a cool week, until Wednesday.  Now temperatures are flirting 
with triple digits.  Foxgloves and fireweed are both in bloom.  
Raspberries are still red, not yet ready.  Salmon-berries are ripe but 
I'm not a fan.  Thimble-berries will be ready in a few weeks.


   The sun is not quiet.  There are three large sunspot groups, ranging 
from moderately active to C class flares.  A 'mild' CME hit the earth 
yesterday.  It's a safe bet there will be QRN and QSB tomorrow.  Summer 
storms will bring rain and static.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




It was a quiet morning, the town covered over with darkness and at ease 
in bed.  Summer gathered in the weather, the wind had the proper touch, 
the breathing of the world was long and warm and slow. You had only to 
rise, lean from your window, and know that this indeed was the first 
real time of freedom and living, this was the first morning of summer.





https://www.quantamagazine.org/the-simple-geometry-that-predicts-molecular-mosaics-20230621/




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   There has been no rain this week.  The last three mornings have been 
foggy but it was not dense enough to condense rain from the trees.  The 
forest did gathered some of it; the air smells better.  Looks like a 
mild week ahead so the fire danger should stay low.


   The large sunspot which broke up last week's 40 meter net is gone, 
now a new, large spot has passed over the limb.  Will it remain 
quiescent long enough to get through tomorrow?  I am hoping for summer 
thunderstorms.  They clear the air of smoke and give me a sense of how 
far I can hear.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-




Any intelligent fool can make things bigger, more complex, and more 
violent.  It takes a touch of genius -- and a lot of courage -- to move 
in the opposite direction.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Sun, with a little rain, has made the forest green.  It smells 
great.  More new birds arrived.  The young Gray jays have learned to 
fly.  I noticed them falling onto the roof until they gained control.  
Now they have joined the flock flying around.


   The sun has a very large sunspot group.  There was a glancing CME 
earlier today.  Solar activity is a little lower at the moment.  Good 
propagation with only summer storms to contend could happen.  A 
thunderstorm would clear the skies and cool things down.  I'm sure Texas 
would enjoy a cool front.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-





The Universe is already mad, anything else would be redundant.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The fir trees have two to three inches of bright green new growth.  
The ferns are between six and ten feet tall but not done unrolling.  The 
hummingbirds returned and brought friends.  It is quite busy right now, 
I have to duck when I walk out the door. They enjoy flying at eye level 
close enough to feel a breeze.


   The sun is moderately active.  A number of M class flares this week, 
but no major CMEs are due.  A mix of fast and slow streams of solar wind 
is pummeling the ionosphere.  Should lead to some interesting and varied 
QSB.  Summer storms will add some noise. It will start raining tonight 
and continue for a few days.  I don't expect lighting, it's not that 
common here.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-






The case of the missing hummingbirds

   Anna's hummingbirds are the first to arrive each spring.  They take 
advantage of my feeder for a few weeks then become more scarce.  Next 
the Rufous hummingbirds arrive and use the feeder. This year they sipped 
through one feeder full, then disappeared after I refilled it.  No 
Rufous hummingbirds for seven days.
   But I did notice more birds arriving.  One of them has a prominent 
red head and breast - the Red breasted sapsucker.  They make parallel 
rows of notches in the bark of trees.  One species they harvest is the 
Douglas fir.  I have plenty.  One of them has been chopping notches in 
the underside of a bough right outside this window.  The red flash, and 
the nifty inverted landing maneuver, catch my eye when I'm at the keyboard.
   I did a web search on them and found some interesting tidbits. One 
is that Rufous hummingbirds are known to follow sapsuckers around to 
exploit their many sap wells.  They use them as another food source when 
flowers are lacking.  Hummingbirds also feed from the clouds of tiny 
flying annoyances; of that I am grateful.
   Now I had a clue to work with, only a day later I saw a Rufous 
hummingbird on the underside of the bough right outside this window.  
When the sapsucker moved in they found a rich resource to tap, with a 
variety of nutrients.  After a week feasting from the sap wells they are 
now back fighting for my feeder.  I chased five of them off so I could 
water my plants.  A number of species of butterflies enjoy my blooming 
chives.  The hummingbirds don't mind at all.


https://www.allaboutbirds.org/guide/Red-breasted_Sapsucker/



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It rained yesterday.  Very slow though very little, mostly fog 
condensing on the trees.  The forest is much more green today. More 
birds have moved in but the hummingbirds seem to have moved off.  Their 
newly filled feeder hangs untouched.


  The sun is active and promises to remain active.  There was one minor 
black out event but no CMEs are due.  Both bands should be OK.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-








"You have the look of a man who accepts what he sees because he's 
expecting to wake up.
Ironically, this is not far from the truth.  You are here because you 
know something.

What you know, you can't explain.  But you feel it.
You felt it your entire life - that there's something wrong with the world.
You don't know what, but it's there.  Like a splinter in your mind ..."



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a sunny, mild week; the forest smells dry.  The ferns are not 
done unrolling but it is getting harder to see the burrows.  Today I had 
a Steller's jay follow me around on my hike.  Normally a few Grey jays 
keep tabs but today they were absent.  Pollen is not absent, you can see 
it in the wind.


  There was at least one RF black out this week.  I may have missed 
one.  We are currently under a solar storm watch.  The ions are moving 
slower than expected.  I will go out on a limb and predict QSB :)  I'll 
keep my fingers crossed there won't be another RF blackout.  Were things 
better during the solar doldrums?  Ten and fifteen meters are open which 
is a plus.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS






-






"Failure is better than not trying at all.  At least you learn from your 
errors."


I think this is why compilers were invented.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Only a few weeks ago there was a foot of snow on the ground. Now the 
ferns are six feet tall and unrolling.  The second, larger species of 
hummingbird has returned.  Compared to the Anna's the Rufous seem huge.  
They do share the feeder though.


   The sun is active at the moment but in about ten days a large 
sunspot should appear.  The auroral oval is bright.  Northern lights 
will have to wait until the moon sets.  I am safe in predicting QSB of 
various rates and types.  Should make things interesting.





Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS





-







“It is so shocking to find out how many people do not believe that they 
can learn, and how many more believe learning to be difficult.”


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The warm weather has caused a riot of growth.  It is like watching a 
time-lapse movie at double speed.  I took a brisk walk through the woods 
this morning.  The pace was enforced by a healthy crop of ravenous 
flies.  Higher temperature is drying out Western forests.  Much of the 
country is in a plume of smoke. https://firesmoke.ca/forecasts/current/


   The sun is unstable with M to X class flares since 3310, and now 
3311, crossed the limb.  There was at least one RF blackout from them 
plus auroral shows reaching farther south.  While the ionosphere is not 
lacking ions, it is shaking signals and refracting noise. 
https://www.quantamagazine.org/the-tiny-physics-behind-immense-cosmic-eruptions-20230515/



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS





-





https://www.quantamagazine.org/secret-messages-can-hide-in-ai-generated-media-20230518/



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

    The sun was moderately active this week.  A CME hit today. There 
are a couple unstable sunspot groups so more of them are expected.  
There should be time for the ionosphere to settle down so we can take 
advantage of it.


   Currently there is a heat wave in Oregon.  The temperature rose to 
88 F, though it may have gone higher.  For the next few days the 
humidity will drop into the teens with hot days and high winds.  Even 
though the forest was soaked only a week ago any fire would spread quickly.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS





-



https://www.quantamagazine.org/tiny-jets-on-the-sun-power-the-colossal-solar-wind-20230424/


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a good day for a hike.  Warm enough to not wear a jacket, but 
cold enough to limit the biting flies.  The soil is decompressing from 
the snow; the sword fern are springing up. Some bracken fern are pushing 
free, but mostly the forest floor is open.  The seasonal stream in the 
northwest corner of my property is running.  On the way back I heard an 
odd bird call.  Suddenly I was sitting by mom in a blind, next to the 
marsh on grandpa's homestead in North Dakota.  "An American Bittern.  
That doesn't make sense.  I'm in a forest."  Then I got a look at the 
bird.  It was a crow giving the call I had not heard in years.  I know 
they mimic but where did he hear a bittern around here?


   The sun is active.  It has tossed so many CMEs in the last while 
that they cannot keep track of them all.  However, one is due to hit 
Earth later tomorrow.  Hopefully this week's blast will hold off until 
after all the nets.  In any case we can test the ionosphere's condition 
tomorrow afternoon and evening.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS





-







https://www.quantamagazine.org/how-a-human-smell-receptor-works-is-finally-revealed-20230501/

https://www.quantamagazine.org/alan-turings-most-important-machine-was-never-built-20230503/




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Two days of 80 degree weather made the snow disappear.  Buds are 
becoming leaves while flowers are blooming quickly.  There were no 
daffodils open Wednesday, today there are fifty of them interspersed 
with trilliums and yellow violets.  I filled the hummingbird feeder last 
week; now it is almost empty.  Normally spring does not occur so rapidly 
here.  The forest undergrowth is still flattened against the ground.  
However, biting flies began feasting early today.


   The sun is moderately speckled, with one unstable group spouting C 
class flares.  Flux is fairly high so there should be some ion noise.  I 
expect a few thunderstorms to add static.  We are now inside a stream of 
solar wind, another source of odd sounds.  Conditions sound as 
interesting as ever.  I think it will be fun to test them.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The forest is waking up.  Scents are changing.  A few hummingbirds 
reminded me to put up their feeder.  More woodpecker species are back.  
There is a variety of drumming calls.  Grouse will find good logs soon.  
I wondered if each woodpecker had a resonant frequency to transfer shock 
efficiently.  I found a lot of studies citing head trauma research.


  The sun tossed a CME at us, due between z and 1200z on April 
24th.  So we may or may not be affected.  I expect occasional whistling 
sounds, followed by deep QSB, as the ionosphere feels the impact of the 
faster ions then the rest of the mass.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-




https://www.audubon.org/news/new-study-shakes-long-held-belief-woodpecker-hammering

https://www.sciencedirect.com/science/article/pii/S0734743X1630879X



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Very little snow remains.  A little sun, a lot of rain, and higher 
temperatures melted the 1/2 foot of new snow from early in the week.  My 
daffodils are finally seeing sunlight.  They will bloom in a few weeks.  
I saw a line of Varied Thrush working their way across the front yard 
fluffing up the ground cover searching for tasty tidbits today.


   The sun is moderately speckled and active.  An M class flare could 
happen today, boosting the ion layer.  I hope for more noise with 
stronger signals.  A quiet band never seems to provide great 
propagation.  It is easier to filter out the noise than it is to boost a 
weak signal.  But I have heard great signals over an otherwise soundless 
background.  You just never can tell about this RF stuff :)  That's why 
folks climb mountains and work each other QRP.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has not snowed in three days.  Rain has melted most of what is 
left.  This year there is little runoff; it is soaking into the ground 
rather than causing floods.  I did not know the ground was so dry up 
here.  The forest should have good growth.  Golden crowned kinglets are 
back, searching for seeds.


   The sun is mostly bare but still caused a radio black out today.  
AR3272 showed up two days ago and has been active ever since.  I expect 
noise and QSB for both nets tomorrow.  Hopefully we can work them in 
between solar events.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-







Kirchhoff's other laws:

https://math.nyu.edu/~estarose/ew_articles/mention/PhysFluids_22_024104_LIM.pdf

https://www.hindawi.com/journals/jcmp/2014/650365/

https://graphics.pixar.com/library/CurlyHairA/paper.pdf

https://hal.inria.fr/inria-00520270/document



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It has been a snowy day.  A fawn walked out of the forest soaked by 
the slush.  She shook to get rid of the water, but was still dark 
brown.  Then the sun popped out and she stood still. For about fifteen 
minutes she stood outside this window enjoying the sun.  At a few points 
her eyelids closed and I thought she was going to fall over.  She shook 
herself again, joined her sister and mother, and continued eating the 
fallen lichen.


   The sun looks sparsely spotted and quiet.  It is only resting.  
Another RF black out happened a few days ago.  No CME from it because it 
was too abrupt to raise a mass of ions.  The prediction is for quiet for 
the next day or two.  There should be less fading.  There may even be 
less noise.  Let's find out.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-






https://www.quantamagazine.org/surprise-computer-science-proof-stuns-mathematicians-20230321/

https://www.quantamagazine.org/ai-reveals-new-possibilities-in-matrix-multiplication-20221123/


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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   The sunny days melted snow, the other days built it back up. Overall 
there has been a net loss.  A doe and two fawns took advantage by eating 
all the fallen lichen exposed in the area. They spent over an hour 
cleaning up.


  The sun has reawakened with a number of active sunspots. Auroral 
activity is high too.  One of these nights it will be clear enough in 
Oregon for me to see them.  I expect the bands will be unsettled 
tomorrow with a variety of odd noises.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-






If you took control theory classes you will remember the inverted pendulum.

This lab took it much farther: https://www.youtube.com/watch?v=I5GvwWKkBmg

For a good refresher on Laplace transforms:

https://lpsa.swarthmore.edu/LaplaceXform/FwdLaplace/LaplaceXform.html

How I keep track of net times: http://bacona.design/video.html

Click on Timer.zip







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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   Snow stopped falling early this week.  Now it is slowly melting.  
Only a foot is left, but it is dense.  I don't see a lot of runoff so it 
is soaking the ground.  I heard a Pileated woodpecker this afternoon and 
a Barred owl at dusk.  Some birds are returning but it will take another 
week for them to find much to eat.  My daffodils are not in danger of 
the final snow storms of the year, they are well protected.


   The sun is quiet this week, at least on our side.  There is one 
active spot on the other side which caused a polar blackout and a few 
nights of aurora sightings.  A CME may hit late tomorrow.  There should 
be moderate levels of QSB and noise.  Time to start planning my next 
antennas before the ferns grow tall.  A day with a chainsaw will improve 
a few paths for them.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS




-




   I worked on my federal and state taxes this week.  When that grew 
frustrating I went back to writing software.  It was soothing to work on 
logical paths built from plainly stated equations. What is it about 
bureaucratic directions which make them so mind numbing?




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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   Another snowy week left the road looking like a bobsled run. In 4WD 
it was fun negotiating the turns.  A recent clear cut has exposed a 
steep cliff.  Two corners have an excellent view, I'm sure a passenger 
would enjoy it.


   The sun is well spotted and stable for now.  Flux is high so I 
expect some noise.  The snow has brought down a lot of limbs though the 
antennas are in good shape.  I did have to untangle one limb from the 
guy rope but it missed me.


   Remember Daylight Savings Time begins overnight.  Both nets remain 
at the same local time.  I work them in between chores and cooking so 
timing is important.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)

   73,
  Kevin. KD5ONS


-

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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   Snow storms ceased intermittently this week, with a short gap 
yesterday.  I spent that time shoveling.  Today there is no sign of my 
work.  March came in like a Turner study of fog, snow, and wind.


  One last X class flare from spot #3234 caused a short RF black out.  
That means there are plenty of ions in the Heaviside layer. Auroras are 
streaming at lower latitudes.  The fog and clouds block my view.  The 
solar flux reading is 175.



Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-








“Being Indian is an attitude, a state of mind, a way of being in harmony 
with all things and all beings. It is allowing the heart to be the 
distributor of energy on this planet; to allow feelings and 
sensitivities to determine where energy goes; bringing aliveness up from 
the Earth and from the Sky, putting it in and giving it out from the heart.”




Continental Morse Code has tones of only two lengths, but four different 
length spaces.  Jazz is the space between the notes.



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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

    Dry, powder snow fell throughout the week.  Today it got sunny so 
most of it fell from the trees.  There is still about two feet left with 
another few feet on the way.  Depending upon the temperature I may need 
to shovel the roof.  If I have a lot of snow when it starts raining it 
gets heavy, very fast.


   The sun has been active this week.  At least two RF blackouts thus 
far.  A stream of solar wind is due on the 27th.  That may affect the 
forty meter net.  Flux is not has high as last week but it is OK.  
Sunset is changing quickly so forty meters will take a dive at some 
point during the net.  Earlier is better.




Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS




-







"Microcosmic God" by Ted Sturgeon in C++   :)


unsigned int crossover(Gene g1, Gene g2)
    {
   unsigned int Msequence = g1.getSequence();    // ma gene sequence
   unsigned int Psequence = g2.getSequence();   // pa gene sequence

   int i = rand() % g1.getLength(); // determine point in 
genes for crossover


   Msequence >>= i;
   Msequence <<= i;

   Psequence <<= 32 - i; // if I use 30 instead of 32 I can 
use those
   Psequence >>= 32 - i; // two bits as a permanent marker 
for special

                 // chromosomes
   return Msequence | Psequence;
   }

Plant(int x, int y, int energy=10, int age=1) : Organism(x, y, energy, age)
    {
    unsigned int seq = rand() % 8;    // pollination
   seq <<= 3;
    seq |= rand() % 8;                     // poison probability
   seq <<= 3;
    seq |= rand() % 8;                     // spines
    int len = 9; // 9 bits
    m_plant = Gene(seq, len);
   }

Herbivore(int x, int y, int energy=50, int age=1) : Animal(x, y, energy, 
age)

    {
    unsigned int seq = rand() % 16;    // run probability 4 bits (0-15)
   seq <<= 4;
    seq |= rand() % 16;                  // hide probability 4 bits (0-15)
   seq <<= 4;
   seq |= rand() % 16;                     // fight probability 4 bits 
(0-15)

   seq <<= 4;
   seq |= rand() % 16;                    // camouflage 4 bits (0-15) 
[quality of hiding]

   seq <<= 4;
   seq |= rand() % 16;                    // ability to eat marginal 
food probability

    int len = 20;         // 20 bits
    m_tactics = Gene(seq, len);
   }

Carnivore(int x, int y, int energy=10, int age=1) : Animal(x, y, energy, 
age)

    {
    unsigned int seq = rand() % 16;    // attack probability 4 bits (0-15)
   seq <<= 4;
    seq |= rand() % 16;  // rest probability 4 bits (0-15)
   seq <<= 4;
   seq |= rand() % 16;         // hide probability 4 bits (0-15)
   seq <<= 4;
   seq |= rand() % 16;        // camouflage 4 bits (0-15) 
[quality of hiding]

   seq <<= 4;
   seq |= rand() % 16;        // attack range 4 bits (0-15)
   seq <<= 4;
   seq |= rand() % 16;        // pursuit time 4 bits (0-15)
    int len = 24;         // 24 bits
    m_tactics = Gene(seq, len);
   }

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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   The last inch of snow melted today.  The forecast is for more but I 
am near snow line so it doesn't last long.  The clouds dropped below me 
just before sunset as the temperature fell.


   The sun has been active.  An X class flare struck yesterday. Solar 
flux is at 343.  The bands will be unsettled :)  I expect there will be 
noise and plenty of QSB.



Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS




-









Great business must be wrought ere noon.
Upon the corner of the moon
There hangs a vap’rous drop profound.
I’ll catch it ere it come to ground,
And that, distilled by magic sleights,
Shall raise such artificial sprites
As by the strength of their illusion
Shall draw him on to his confusion.


https://www.quantamagazine.org/to-teach-computers-math-researchers-merge-ai-approaches-20230215/




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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   Two sunny days during winter, I took advantage of both of them.  I 
went for a walk.  Today I was wondering about the lack of wildlife when 
I kicked up two Black-tailed does.  They showed me a new path through 
the forest, so I followed it.  They had been sleeping so I am pretty 
sure they only moved a hundred yards away to find a place to lie in the 
sun.  With the tall ferns down I could see farther.  Many of the mosses 
are blooming a bright green.  Some of the lichens are brighter too.


   The sun is wide awake.  A black out occurred over South America 
recently.  The sunspot which caused it is well positioned for a few more 
shots at earth.  I imagine there will be deeper QSB tomorrow.  Sunspot 
3217 will be visible for the next week.  During that time expect a few 
more X class flares.  A CME could be in our future.  However, once the 
furor has subsided the ionosphere supports ten and six meters nicely.  
Get on the air and see.




Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-





https://www.quantamagazine.org/mathematicians-complete-quest-to-build-spherical-cubes-20230210/

Watch an invisible ball deform a spring-mass mesh 
http://bacona.design/video.html


https://www.quantamagazine.org/researchers-discover-a-more-flexible-approach-to-machine-learning-20230207/


He had white horses and ladies by the score
All dressed in satin and waiting by the door

White lace and feathers they made up his bed
A gold covered mattress on which he was laid

He went to fight wars
For his country and his king
Of his honour and his glory
The people would sing

A bullet had found him
His blood ran as he cried
No money could save him
So he laid down and he died

Ooh, what a lucky man, he was
Ooh, what a lucky man, he was




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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   The sun popped out on Ground Hog day.  The Pacific Northwest will 
get another six weeks of fog and rain.  Luckily there will be some snow 
for variety.


   The sun is almost bare this week.  Fewer sunspots and lower flux.  
That should mean lower noise and less QSB.  It could also mean lower 
signal strength.  You just never can tell until you try.


Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-






https://www.quantamagazine.org/the-enduring-mystery-of-the-dragonfly-44-galaxy-20221107/



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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   A mild, rainy week helped me clear a few things off of my to do 
list.  The sun has fewer, less active sunspots than the last few weeks.  
I expect less QSB.  We will test this hypothesis.



Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-








All that we are is the result of what we have thought.







https://spacemath.gsfc.nasa.gov/

https://www.ngdc.noaa.gov/geomag/WMM/image.shtml






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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   A mostly gray week ended today when a spot of sun came out, then it 
started snowing.  An inch of snow fell and fog rolled in. Good day to 
sit by the fire and read.  The sun remains active with large sunspots 
and repeated flares.  QSB should be varied.



Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-










When one sits in the Hoop Of The People,
one must be responsible because
All of Creation is related.
And the hurt of one is the hurt of all.
And the honor of one is the honor of all.
And whatever we do affects everything in the universe.


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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   The winds have slowed a bit but the rain continues.  I lost a few 
large fir trees to wind in the SW corner of my land.  The trees were 
exposed to the neighboring clear cut and the SW wind. Douglas Fir trees 
do not have a tap root; they have surface roots which are not very 
extensive.  Soggy soil makes them more vulnerable.


  The sun is awake.  Lots of sunspots.  High levels of solar flux.  X 
class flares, interspersed with M class flares, have been zapping the D 
layer all week, blocking HF communications at times.  I expect varied 
amounts of QSB at many rates.  Should be interesting :)




Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-





Should you ask where Nawadaha
Found these songs so wild and wayward,
Found these legends and traditions,
I should answer, I should tell you,
"In the bird's-nests of the forest,
In the lodges of the beaver,
In the hoof-prints of the bison,
In the eyry of the eagle!
  "All the wild-fowl sang them to him,
In the moorlands and the fen-lands,
In the melancholy marshes;
Chetowaik, the plover, sang them,
Mahng, the loon, the wild-goose, Wawa,
The blue heron, the Shuh-shuh-gah,
And the grouse, the Mushkodasa!"




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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   The new year has been windy and wet thus far.  Flying limbs have not 
eaten either of my antennas.  The power outages have been only seconds 
long.


   Sunspot 3182 has been very active.  Three X class events this week 
causing RF blackouts over large areas of the world.  Oddly, the flares 
have not ejected any CMEs.  Hopefully there won't be an event tomorrow 
so we can benefit from all the ions zipping around above us.




Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-






He clasps the crag with crooked hands;
Close to the sun in lonely lands,
Ring'd with the azure world, he stands.

The wrinkled sea beneath him crawls;
He watches from his mountain walls,
And like a thunderbolt he falls.

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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Happy New Year,

   It was an exciting week.  I got to see trees flying past my house.  
Now there is a stack of green alder chunks next to the driveway.  After 
a day or two the exposed wood oxidizes to an orange hue.  The roof is 
fine though I have ceased resetting my clocks.  Power drops out at least 
once a day if not more often.  A few limbs must be hanging from wires 
somewhere.


   The sun is tossing flares at earth again.  One caused a black out 
yesterday, another is due Wednesday.  The ionosphere should have enough 
ions to support comms.  QSB will be moderate controlled by skip angles 
and the number of hops.  The sun is coming back again.  The forty meter 
net should have propagation much like last week.



Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS







-








Those who dream by day are cognizant of many things which escape those 
who dream only by night.






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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Merry Christmas,

   Winter came in like a lion.  Two nights ago it dropped to 5 degrees; 
it is much colder in the Midwest.  My well acted up for a day, I am glad 
I had water stored.  For some reason it was raining well below 
freezing.  The trees got a coating of ice then a layer of hoar frost.  
Luckily temperatures rose so the rain stopped sticking.


   The sun is mildly active.  Sunspots, but none are throwing flares.  
QSB may be weaker.  Hopefully the signal to noise ratio will be as good 
as last week.  That being said I don't expect a lot of folks to show up 
since it is Christmas day.


   Stay warm and have safe travels.


Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS






-









And there were shepherds living out in the fields near by,
keeping watch over their flocks at night.

An angel of the Lord appeared to them, and the glory of the
Lord shone around them, and they were terrified.

But the angel said to them, “Do not be afraid. I bring you
good news of great joy that will be for all the people.














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[Elecraft] Elecraft CW Net Announcement

[kevin via Elecraft]

Good Evening,

   I had a sunny, chilly week.  Wind brought in clouds and shut off the 
power yesterday.  I expect some snow, but won't get much of it over the 
next week.  Christmas may or may not be white; often it is pouring rain.


   The sun is moderately active.  A few sunspots have had C and M class 
flares this week.  The ionosphere should be charged.  QSB will be 
interesting.


Please join us on (or near) :

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS






-






Vague dream-head lifted out of the ground,
And thing next most diffuse to cloud,
Not all your light tongues talking aloud
Could be profound.

But tree, I have seen you taken and tossed,
And if you have seen me when I slept,
You have seen me when I was taken and swept
And all but lost.

That day she put our heads together,
Fate had her imagination about her,
Your head so much concerned with outer,
Mine with inner, weather.





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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Six inches of fresh snow covered the ground as ~30 elk moved 
through.  They were not even looking for food, they wanted to drop into 
a nearby canyon for some quiet.  Hunting season has them a little on 
edge.  Since then it has been quite foggy with a lot of rain.  Yesterday 
it rained harder with high winds.  At 7 PM the power went out until 9 
AM.  No dipoles would have survived the storm; no snow remains.


   The sun is waking up again.  Flux is high with many large sunspots.  
One of them has had C class activity.  In a few days that one will aim 
at the earth.  Others have M class level activity.  CMEs have exited the 
sun but few in our direction.  A "faint" CME may hit on the 12th.  QSB 
could be exciting.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-




Character is like a tree and reputation like a shadow.  The shadow is 
what we think of it; the tree is the real thing.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Three inches of fresh snow reveals a lot.  I saw a family group of 
four coyotes against the white backdrop.  They entered the more open 
areas of my land covered with grasses, shrubs, and ferns under the 
canopy of fir and hemlock.  They split into two pairs; I lost track of 
the farther two.  The nearer ones worked as a team.  One would pounce, 
slapping its forelegs on either side of a lump of grass or ferns.  The 
other pounced from another direction a moment later, landing snout first 
to catch its prey. They took turns and did quite well for themselves, 
catching small rodents with a one in four success rate.


   Our sun has few spots, although 3153 is threatening.  The solar flux 
rate is about the same as last week.  The auroral oval shows some ions 
are flowing our way, but not in vast numbers (astronomically speaking of 
course).  QSB may be lower.  The best way to find out about the 
propagation is to try it and see, you may be surprised.




Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-





Winter seclusion -

Listening, that evening,

To the rain in the mountain.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   A steady rain of fir needles fell from a windless sky.  I looked up 
into the foggy tree to see a flock of Gray jays fluffing their feathers, 
shaking the branches.  The temperature was  near the dew point most of 
the day, the birds were having a hard time staying dry.


   The sun has few sunspot groups.  The solar flux reading is down 
too.  But the auroral oval is showing moderate ion transfer. Further 
reading gives me a hint - we are inside a stream of solar wind.  Twenty 
meters may have more QSB than last week and higher noise.  Propagation 
should be passable.




Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-




It is paradoxical, yet true, to say, that the more we know, the more 
ignorant we become in the absolute sense, for it is only through 
enlightenment that we become conscious of our limitations. Precisely one 
of the most gratifying results of intellectual evolution is the 
continuous opening up of new and greater prospects.






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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a busy, chilly week.  On Tuesday I found myself in a field of 
elk.  They are surprisingly noisy.  As they diffuse through my property 
they test the rotted slash.  Now I have more paths to walk and there is 
less forage.  On Wednesday I saw a large covey of California quail 
pecking gravel from the road.  I have never seen them at this elevation 
before.  Then, early Thursday morning well before dawn, I was awakened 
by a strange noise. 
https://www.facebook.com/FgcuCampusNaturalists/videos/ever-heard-a-bobcat-meow-sound-on/188075285731685/ 



   The sun has a few sunspot groups but solar wind is due to sweep the 
ionosphere this weekend.  Things could get noisy but we will still enjoy 
QSB.  Hopefully twenty meters will work better than last week.  When I 
hear little noise I usually work fewer stations.  Forty meters runs 
shortly after local sunset. Conditions change quickly as the net 
proceeds.  Soon I will have to move it forward 30 minutes.  My vertical 
antennas are surviving windstorms pretty well; doublets fall to flying 
tree limbs within a year.  Past antennas provide plenty of material to 
make new ones.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-







I’m truly sorry Man’s dominion
Has broken Nature’s social union,
An’ justifies that ill opinion,
   Which makes thee startle,
At me, thy poor, earth-born companion,
   An’ fellow-mortal!








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Re: [Elecraft] Elecraft CW Net Announcement

[James Walker]

Every Sunday, I look forward to your description of conditions there in your 
neighborhood as a part of your invitation to participate in the CW nets. You 
have a thoughtful eye for the conditions and an accomplished talent for 
expressing what you see. Thank you for your energy and support of the Elecraft 
community and our hobby.

Jimmy Walker
WA4ILO
Macon, GA

> On Nov 12, 2022, at 8:16 PM, kevin  wrote:
> 
> Good Evening,
> 
>After a snowy week it is nice to see the sun again.  On Wednesday a bird 
> got my attention from about ten feet away.  He gave me enough time to look 
> him up on three websites.  I watched a Red-breasted sapsucker make his 
> characteristic row of holes around a tree.  First one tree, then the next, 
> all within easy view so I could check his field marks.  Woodpecker #8 on this 
> list https://wildlifeinformer.com/woodpeckers-in-oregon/  While I have not 
> seen him before, I have heard his call; part of which mimics the CW you hear 
> the day after a contest in any rhythmic sound. You know it is CW, you are 
> just not sure which  language they are using :)
> 
>The sun has some large, dark spots.  A pinhole camera should resolve them 
> onto a plane surface.  There is a moderate amount of solar flux, the auroral 
> oval is active.  A few of the spots could flare but any CME would miss us.  
> However, if an X class flare erupts it blanks the hemisphere facing the sun 
> no matter where the spot is placed.  I wonder if radio communication is even 
> possible near a class O star.  We're lucky to be orbiting a more modest star.
> 
> 
> Please join us on (or near):
> 
> 14050 kHz at 2300z Sunday  (3 PM PST Sunday)
>  7047 kHz at 0100z Monday  (5 PM PST Sunday)
> 
> 73,
>   Kevin.  KD5ONS
> 
> A strange game, the only winning move is not to play.
> 
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> Message delivered to jimmy.wal...@outlook.com

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   After a snowy week it is nice to see the sun again.  On Wednesday a 
bird got my attention from about ten feet away.  He gave me enough time 
to look him up on three websites.  I watched a Red-breasted sapsucker 
make his characteristic row of holes around a tree.  First one tree, 
then the next, all within easy view so I could check his field marks.  
Woodpecker #8 on this list 
https://wildlifeinformer.com/woodpeckers-in-oregon/  While I have not 
seen him before, I have heard his call; part of which mimics the CW you 
hear the day after a contest in any rhythmic sound. You know it is CW, 
you are just not sure which  language they are using :)


   The sun has some large, dark spots.  A pinhole camera should resolve 
them onto a plane surface.  There is a moderate amount of solar flux, 
the auroral oval is active.  A few of the spots could flare but any CME 
would miss us.  However, if an X class flare erupts it blanks the 
hemisphere facing the sun no matter where the spot is placed.  I wonder 
if radio communication is even possible near a class O star.  We're 
lucky to be orbiting a more modest star.



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-






A strange game, the only winning move is not to play.



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[Elecraft] Elecraft CW Net Announcement and time change

[kevin]

Good Evening,

   It was rainy and cool this week.  Many color changes in the ferns 
and shrubs.  Yesterday the rain fell heavily, then the wind kicked up.  
After hours of fir cones bouncing off the roof smaller branches started 
falling.  Within an hour the power was out. Twelve hours later they had 
it working again.  I got to read while sitting by a warm fire.


   The sun is growing more active.  There are more sunspot groups 
returning.  Some of them may flare sending ions our way.  Recently a 
large spot erupted on the back of the sun, it will rotate to our side 
this week.  Notice the time change scheduled, sun angles will be 
different from last week.  Propagation will be different, it may even be 
better :)



Please join us on (or near):

14050 kHz at 2300z Sunday  (3 PM PST Sunday)
 7047 kHz at 0100z Monday  (5 PM PST Sunday)



73,
  Kevin.  KD5ONS





-





Remember, remember the 5th of November


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a cool, wet week.  Wet enough for them to burn the slash in a 
clear cut.  The clear cut spans a canyon on the way to Buxton.  The 
canyon, and the road above it, was covered with smoke.  Normally the 
slash is either collected for chipping, or left to feed the next generation.


   The sun is more active.  More spots are growing and some of them are 
active.  The upper bands have been open recently.  That means twenty 
meters should be stronger.  The forty meter net is now one hour before 
local sunset.  There is an aurora alert so we will have QSB of some form.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS





-





Vs = IR1 + IR2 + ... + IRn






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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Friday morning started foggy and gray, then it slowly started 
raining.  There was a break earlier today but there were no puddles.  
Everything soaked straight in.  Fire danger dropped quickly.  The smoke 
has cleared out of the air too.  Hopefully some fires were slowed or 
extinguished.


   The sun was less active this week.  There are fewer sunspots and the 
flux rate has dropped.  The auroral oval shows moderate activity.  Even 
though the sun seems quiet there are a lot of ions heading our way.  
Sunset is earlier but won't happen here until after the forty meter net 
has gone free.  Long range hops may work OK.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS





-





So let us begin anew — remembering on both sides that civility is not a 
sign of weakness, and sincerity is always subject to proof. Let us never 
negotiate out of fear.  But let us never fear to negotiate.





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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a mild, smokey week.  Wind moves the smoke around though you 
can still taste it.  The wind also causes a steady rain of fir needles.  
Dry weather has caused more of them to die off. Black berries are not 
doing very well.  The jays have a lean and hungry look.


   The sun has few sunspots today but it is still fairly active. They 
are losing track of individual CMEs.  Each has its own velocity so they 
can merge or pass one another.  The auroral oval shows when they are 
energize the ionosphere.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS



-




To model the Real part of the 1/4 wave vertical antenna radiation pattern

#define ETA  376.99111842000 // eta = 120 * PI;  // in free space

double f = 100;  // frequency in MHz
double h = 1;           // height of antenna
double I0 = 2;   // maximum current in amperes
double r = 100;  // distance from antenna to observer
double size = 50;    // used for scaling

lambda = 300 / f;    // wavelength in meters
l = lambda / 4;  // length of antenna  1/4 wave
k = 2*PI / lambda;  // to save some space

Sweep radius around the Y axis
for {0 <= phi <= 2*PI}
stepping along from {0 <= theta <= 2/PI}

radius = size * cos(k * r) * (k * l * ETA * cos(theta) * cos(h * k * 
sin(theta)) * I0) / (2*PI * r);


For the imaginary part sweep

radius = size * sin(k * r) * (k * l * ETA * cos(theta) * cos(h * k * 
sin(theta)) * I0) / (2*PI * r);




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I spent my week practicing Y-turns in the forest.  My truck still 
has side mirrors and tail lights :)  Morning fog helped soften the deep 
ruts left from the thinning.  Its high humidity made the soil softer but 
made lifting wood into the box harder. When the sun came out it got 
warm, up to 85, heaving wood around became soggy work.  Now to warm 
myself by splitting and moving it again.


   The sun is spotty and mildly active.  None of the spots are shooting 
at us but a steady solar wind will provide ions, QSB, and noise.  I 
received a unique QSL card featuring a Broad-tailed Hummingbird; thank 
you Dwight.  I have never seen one outside of a bird book.  Mine have 
all left for the season so I can take down the feeders and clean them 
for next year.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS






-








Very little is needed to make a happy life; it is all within yourself in 
your way of thinking.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Seasons changed abruptly.  It started with light rain; the next day 
it poured.  Now the plants and trees are starting to change color.  The 
storm center was followed by hot weather with moderate winds.  The fir 
trees are sloughing years old needles. They are falling like rain.


   The sun does not have as many spots but it seems just as active.  A 
gust of solar wind is due sometime tomorrow.  If we are lucky it will 
enhance propagation.  The heavy rain knocked the ferns down.  Now it 
will be easier to maneuver guy lines for a new doublet.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS





-







Waste no more time arguing about what a good man should be.  Be one.

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Happy autumn.  I hiked around today scouting out the next few loads 
of firewood.  I did not get a spider web in the face, it's not cool 
enough for that yet, but single strands crossed the trail.  I collected 
wood this week and found splitting it counteracts hours at a keyboard.  
I stand a little straighter now.


   The sun is covered with spots and is fairly active.  There are some 
auroras so there will be QSB and noise.  A few thunderstorms will add 
another note.  As the sun angle changes forty meters will change a 
little more, I may reach farther east.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS




-





Expecting is the greatest impediment to living. In anticipation of 
tomorrow, it loses today.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The season quickly changed to fall.  Night time temperatures hover 
around 40, with cool days around 60.  The smoke is mostly gone but 
sunsets are still red.  With no real rain fire danger is still high.  
Birds have started to move,  I heard a few strands of geese moving 
around today; in a few weeks they will be headed south.


   The active sunspot group from two weeks ago has returned and it is 
as active as it was previously. It is lining up in our direction just in 
time for tomorrow's nets.  A CME takes a few days to get here but an X 
class flare has faster effects.  As the sun moves toward equinox forty 
meters is opening sooner.  Tomorrow we can test it again.  Both bands 
should have summer storm noise along with moderate QSB.  See you tomorrow.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS




-






When human respect is disintegratin'
This whole crazy world is just too frustratin'

And you tell me over and over and over again, my friend
Ah, you don't believe we're on the eve of destruction






// if (delta length is too large) then break the bond for the rest of 
the run

// coefficient of flexing = delta length/equilibrium length
// become plastic at 50% then break at 90%
// { 0.0 <= elastic <= 0.5 <= plastic <= 0.9 <= break <= 1.0 }
// count flexure over 40% to measure fatigue
// when count reaches N then lower the elastic, plastic, break levels


                // Hooke's law controls elastic regime
struct pt springForce( struct pt p1, struct pt p2 )
    {
    struct pt direction;
    float magnitude;

    direction = vecMinusVec( p2, p1 );             // a - b'
    magnitude = Deq - length( direction );      // compression + / 
tension -


//    if ( magnitude>1.3*Deq ) magnitude = 1.2 * Deq;  // limit stretching

    return scale( direction, magnitude*K );      // scaled force vector
    }


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The last two days have been smokey.  Fire danger is extreme, with 
low humidity, dry conditions, and high, gusting winds.  When it is not 
blowing the air gets harder to breath.  The sun was a shade of red just 
before noon.  The color shift was noticeable.


   The sun has become almost quiet the last two days.  The week started 
with a bang on the far side.  That sunspot group is due back next week.  
Currently, conditions are OK.  Low to moderate QSB with late summer 
storm noise.  The earth facing sunspot groups have stable magnetic 
fields.  Tomorrow should provide passable propagation.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS



-



Only YOU can prevent forest fires.  --  Smokey  Bear

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Re: [Elecraft] Elecraft CW Net Announcement

[Antonio Madeira]

Good Morning Dear Kevin.

I'll try again at QTR.

73
Antonio, CU8AS

On Sun, 4 Sept 2022 at 04:32, kevin  wrote:

> Good Evening,
>
> When Douglas Fir are thinner than about twelve inches in diameter
> they are shaded silver.  As they grow that color is broken by cracks of
> brown.  My trees were thinned a few years ago but only this season have
> I seen a change in their growth.  On my weekly hike almost every fir
> tree I saw had "cracked" by some degree.  Many of these trees are 50
> years old and less than a foot in diameter.  They will make excellent
> power poles one day; a quite dense interior surrounded by larger growth
> rings, plus they have no branches for ninety feet.
>
> The sun is active.  After a string of CMEs we now have a crack in
> earth's magnetic.  If it's not one thing ...  This allows more ions into
> the system.  I expect QSB will be moderate to intense with a variety of
> speeds.  Summer storms with space noise will bring crackle and hiss.
> Sounds like a record you left in the sun and need a nickel on the tone
> arm to play, only the lyrics are in CW.  Who sold those CW records in
> the early 60s?  Ameco?  I learned a few letters from them while others
> were studying.
>
>
> Please join us on (or near):
>
> 14050 kHz at 2200z Sunday (3 PM PDT Sunday)
>   7047 kHz at z Monday (5 PM PDT Sunday)
>
>
> 73,
>Kevin.  KD5ONS
>
>
>
>
>
>
> -
>
>
>
>
>
>
> A man who carries a cat by the tail learns something he can learn in no
> other way.
>
>
> __
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> This list hosted by: http://www.qsl.net
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> Message delivered to cu8as@gmail.com
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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   When Douglas Fir are thinner than about twelve inches in diameter 
they are shaded silver.  As they grow that color is broken by cracks of 
brown.  My trees were thinned a few years ago but only this season have 
I seen a change in their growth.  On my weekly hike almost every fir 
tree I saw had "cracked" by some degree.  Many of these trees are 50 
years old and less than a foot in diameter.  They will make excellent 
power poles one day; a quite dense interior surrounded by larger growth 
rings, plus they have no branches for ninety feet.


   The sun is active.  After a string of CMEs we now have a crack in 
earth's magnetic.  If it's not one thing ...  This allows more ions into 
the system.  I expect QSB will be moderate to intense with a variety of 
speeds.  Summer storms with space noise will bring crackle and hiss.  
Sounds like a record you left in the sun and need a nickel on the tone 
arm to play, only the lyrics are in CW.  Who sold those CW records in 
the early 60s?  Ameco?  I learned a few letters from them while others 
were studying.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS






-






A man who carries a cat by the tail learns something he can learn in no 
other way.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It is starting to smell like fall.  Lack of rain has caused the 
grass to turn brown.  Fire danger is high today but the cool, moist 
morning helped.  Today it is sunny at 65 degrees, by Wednesday it will 
be in the high 80s.


   The sun is unsettled.  A few of the sunspot groups are quite 
active.  A CME is due to hit sometime late on the 28th.  There could be 
a black out during the forty meter net.  I am watching it awaken on the 
reverse beacon net as I write this.  Seems I should run the second net 
an hour later.  But at the rate the sun is moving the gray line will be 
here soon enough.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS




-








Sleep aid: https://www.gnu.org/software/libc/manual/html_node/index.html


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Thimble berries are doing well.  Huckleberries are starting, but 
they are sour.  Black berries are young too.  There has been no rain 
though mornings have been cloudy with some fog.  The air smells a lot 
better than it did a few weeks ago.  The sun is more yellow these days.


   The sun has pummeled the ionosphere all week.  Another CME hit 
yesterday, another may hit tomorrow.  I imagine it is fully charged.  
QSB will be fast and deep.  Hopefully we can work between blackouts.  
You never know until you try.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS




-




When we remember we are all mad, the mysteries disappear and life stands 
explained.





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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Each morning this week has been foggy and cool.  The forest 
undergrowth is green while fire danger is moderate.  I followed the 
trail the elk took.  It was easy to see where they had walked because a 
swath of grass was broken all in the same direction. Hunters have been 
driving through watching their movement.  The path would take them into 
a deep wooded area with a stream.  It is quite a hike to the bottom so 
few hunters get there.


  The sun has more spots than last week.  The flux is higher too.  A 
few active spots are ready to throw more ions our way.  I expect 
moderate QSB along with summer storm static.  Conditions were passable 
on 15 meters today; hopefully that will hold on 20 meters tomorrow.  One 
can never tell about propagation, sometimes it's reciprocal and others 
it isn't.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,
  Kevin.  KD5ONS




-




While fixing my plumbing I found the cause of the leak:

A stainless steel shutoff valve         Fe/Cr etc
screws onto a galvanized pipe            Zn/Fe etc
which screws into a brass fitting     Cu/Zn
soldered to                                  Pb/Sn
a copper pipe.                              Cu

Dissimilar metals in an aqueous environment creates multiple galvanic 
cells.  The galvanized pipe lost the battle of electrodes on both ends.  
I replaced it with a PVC pipe to break the circuit.  Which will be the 
next weakest link?



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   After a few hazy days it has cleared up and cooled off.  Lots of dew 
each morning so fire danger has dropped to moderate levels.  The sun is 
at moderate levels too.  The sunspot number has dropped with flux at 
114.  Propagation may just improve on us.  Let's test it tomorrow.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,

  Kevin.  KD5ONS




-






https://news.mit.edu/2022/electron-whirlpools-physics-0706

https://www.quantamagazine.org/geometric-analysis-reveals-how-birds-mastered-flight-20220803/

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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The sky has developed an orange cast.  While there are no major 
forest fires nearby, the Columbia River basin is filling with smoke.  
Temperatures rose to the high nineties this week which raised the haze 
level to me.  My begonias are no longer red, but my eyes are.  Fire 
danger is high.


   The sun is less energetic today.  Solar flux has dropped below 100 
as has the sunspot number.  There may be less QSB.  Tonight will be a 
good night for meteor scatter propagation.  Three separate debris fields 
are hitting the earth simultaneously.  Slow fireballs from the 
Capricornids leave large ionization trails.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,

  Kevin.  KD5ONS




-






I write, erase, rewrite

Erase again, and then

A poppy blooms.




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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   While making dinner I looked out at the hummingbird feeder. Two of 
them were sitting on it, both seemed large.  The Anna's Hummingbirds are 
here for the season.  Rufous Hummingbirds show up in late February to 
mid March.  This year they had to deal with a week of heavy snow.  But 
they like eating the small flying insects.  Anna's are more of a warm 
weather breed.


   The sun has fewer large sunspot groups.  There are many smaller 
groups though.  Flux is down a bit from last week.  Aurora displays are 
visible farther south.  I expect an unsettled ionosphere creating a 
variety of QSB rates.  We will test this tomorrow.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS




-





Laughter without a tinge of philosophy is but a sneeze of humor. Genuine 
humor is replete with wisdom.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   It was a sunny, mild week with a few days with morning fog. No rain 
fell so the fog is helpful.  The local bees pollinated the thimble berry 
bushes well.  A lot of blossoms have set fruit due to them.  Hopefully I 
get a few handfuls later this summer.  The salmon berries are ripening; 
early fruit is very sour.  Some wild strawberries are popping out too.  
Oregon grape has finished flowering and has set fruit.  You can eat them 
but they're very seedy.  It does make good jam if you strain some of 
them out.


   The sun has many spots with a number of active areas facing our 
way.  Solar flux is at 171 at the moment.  The sun is really waking up, 
it tossed another CME at us.  There is a geomagnetic storm watch a few 
days from now if it hits.  I expect the QSB will be moderate to heavy.  
Noise will be up too.  However, the signals seem to have their own 
trials with propagation.


Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS




-





    All this I know and do myself avow.
    Well may Penelope in form and brow
    And stature seem inferior far to thee,
    For she is mortal, and immortal thou.
    Yet even thus ’tis very dear to me
    My long-desired return and ancient home to see.

    “But if some god amid the wine-dark flood
    With doom pursue me, and my vessel mar,
    Then will I bear it as a brave man should.
    Not the first time I suffer. Wave and war
    Deep in my life have graven many a scar.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Summer is gradually starting here in the Pacific Northwest. There 
was a short spell of high temperatures around field day, but since then 
it has been moderately cloudy and wet.  More openings in the clouds 
appeared this week with less rainfall.  Temperatures rose into the high 
60s.  I am trying to germinate green beans for the third time.  The last 
two attempts garnered one seedling each.  Cool, moist nights don't 
help.  Little sun does not help either.  The short growing season makes 
gardening a challenge at this elevation.  Douglas Fir, Hemlocks, Red 
cedars, and ferns like this weather much better.


   The sun has been active this week.  There was a strong solar storm 
and some new, large groups are growing.  The largest group could produce 
an M-class flare.  It could be aimed at us if it launches in the next 
few days.  I am tempted to dust off my refractor, check the solar 
filter, and find a hole in the clouds. I have not looked at sunspots in 
years.  This setup let me view the transit of Venus.  It took quite a 
chunk out of the sun for a few hours.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS




-




My programming tools did not fit my thinking.  I rewrote them.

Now I can write code which matches my thinking.  Life is good :)


struct obj doubleFreq( struct obj OB )
    {
    struct pt A, B, C, D, E, F;   // working vectors
    struct obj OB2;

    for (int i=0; ihttp://mailman.qth.net/mailman/listinfo/elecraft
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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   Last weekend was hot, it rose into the mid 90s.  Now it is back in 
the low 60s.  Summer came and went, the morning fog has returned.  The 
fir and hemlock have about four inches of new growth on each tip.  I 
would expect to see deer but the thinning puts the new growth well out 
of reach.  The birds like the open space.  I am seeing more small hawks 
flying through, with owls at night.  Four barred owls in concert is loud 
enough to wake me from a sound sleep.


   I installed and removed a number of logging applications for field 
day.  Then I simplified matters.  The K3 has four memories where I 
stored the exchange.  For logging I thought about what I had on hand, 
and what I did not like about the usual suspects. Small font size with 
marginal lighting was the first problem.  I wrote a template for a 
spreadsheet and changed the font size to 21.  Using bold, frozen 
headings helped too.  The spreadsheet was simple to keep updated as I 
scanned the bands.  I could fill in call signs and exchanges on the 
busiest frequencies and revisit them later.  The simplicity made working 
the contest easier. Logging the time was quick: ctl+shift+;  Then find 
the next victim.


   The sun has settled down somewhat, providing a window of opportunity 
for tomorrow's nets.  There are very few sunspots visible today.  The 
auroral oval is weak and the K index is low. I expect less noise and 
lower QSB.  But it is best to test one's hypotheses.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS



-



Compilers are like drill instructors:
   You know you have done your very best when they say nothing.



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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   The dry season is sneaking in, twenty minutes more a week. What were 
open expanses just a few weeks ago are now filled with tall ferns.  They 
are not done growing but they do change the environment.  Underneath 
their new canopy lies a moister, cooler micro-climate.  The mountain 
beaver alternate between lying under the ferns and lying on top one of 
their piles of dirt.  They eat a lot of bracken ferns, it is their major 
source of water.  However, they do gnaw down the occasional alder 
sapling and my poor rhododendrons :(


   The sun is active.  More spots than last week with higher flux 
activity.  Both twenty and forty meters have many signals, from CW, 
through four types of digital tones, to voice modes.  There was a 
variety of noise too, but it was not strong.  Summer is coming, Field 
Day is next week so I will not be running either net.  You may hear me 
calling CQ or running a search and pounce mission.  I will try 10 and 15 
meters, you never can tell when they'll be open.  Six meters is also due 
for an opening so I will try it too.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS



-






Be thankful we're not getting all the government we're paying for.

September 21, 1932


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I have been entertained by three squirrels today.  The two young 
ones have fallen out of the fir tree next to me a few times, their 
mother dragged them back up.  Then they fell onto my roof while mom 
chipped away at them.  Then they attacked my soffit with their new 
teeth.  Should be an interesting summer.


   I saw a very soggy doe yesterday as she came out of the nearby alder 
thicket.  She stood on the gravel road and shook herself like a wet 
dog.  It had been raining all morning so she was quite dark in color.  
After ridding herself of the moisture she started cropping the new grass 
along the road.


   The ferns have grown over my head and are filling in the 
surroundings unrolling fronds.  The sword fern are pushing out new 
growth as are the fir trees.  If it were not so wet the pollen would be 
bothersome.  As it is my eyes only itch when I am inside after a walk.


   The sun has been quiet.  That may be good.  Or not.  There is a low 
sunspot number with a flux reading at 106.  The auroral oval is fairly 
quiet too.  Noise should be low with low to moderate QSB.  More antenna 
choices would be nice.  I am going to find a tank of gas for my torch 
and solder another one together.  My Weller soldering iron can't seem to 
provide enough heat while I am outside.  Wind, temperature, or moisture 
don't help it.



Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS



-



Most talented category: He runs a CW DX pileup while leading the Tour de 
France.


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[Elecraft] Elecraft CW Net Announcement

[kevin]

Good Evening,

   I started the Elecraft CW net on June 6th, 2002 to commemorate my 
uncle's action on that date in 1944.  He started early, loading into a 
plane for a short flight across the Channel.  Then jump out of a 
perfectly good aircraft, in the dark, while getting shot at. They were 
told to slow Panzer activity in their sector, with strict orders not to 
blow up any bridges.  They improvised.


   Solar activities have been weaker this week.  The flux index is just 
over 100.  Twenty meters had less noise when I listened to it an hour 
ago.  There were many signals up and down the band.  I think it may work 
fairly well for us tomorrow.  I worked on my vertical antenna this week 
during a lull between showers.  I soldered more radials in place.  The 
tests on 20 and 40 meters showed improvements on twenty meters but 
pretty much the same as previous experience on forty.  Time to cut a new 
doublet and hang it as a V.  It would be nice to have four or five 
choices for antennas  memorized by the tuner.




Please join us on (or near):

14050 kHz at 2200z Sunday (3 PM PDT Sunday)
  7047 kHz at z Monday (5 PM PDT Sunday)


73,  Kevin.  KD5ONS



-




   A female Black headed Grosbeak landed on a branch a few feet outside 
this window.  She gave me time to look her up on the web. Obviously 
Grosbeak but not Rose Breasted, definitely speckled, yellow with a black 
head.  Photo matched the patient bird so I got an all time new one.  
Strangely enough she may be the mate of the one I recorded last year.  
Small world.


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