Good Evening,
Both bands were stronger than they were two weeks ago. Less QSB on
twenty while on forty meters had less on those farther west with a fast
flutter on those to the east. The sun angle seems about right for
longer distance work on forty. By the end of the second net it was dark
here.
Topics ranged from tuning vertical antennas to humans being launched
into space, Boise real estate to Midwestern snow storms. Low noise
helped me dig a little deeper to work PA and VA. It has been a while.
On 14050.5 kHz at 2200z:
W0CZ - Ken - ND
K0DTJ - Brian - CA
K6XK - Roy - IA
NO8V - John - MI
K2HYD - Ray - VA
KB3FBR - Joe - PA
On 7047.5 kHz at 0045z:
W0CZ - Ken - ND
W6JHB - Jim - CA
K4WJ - John - FL
K6PJV - Dale - CA
K0DTJ - Brian - CA
W8OV - Dave - TX
I am working on some code to visualize antenna radiation patterns as
animated 3D surfaces. This is an extension of work I did for my grad
school thesis. There are many variables I could modify as user
controlled parameters; I need to pick those which effect the system the
most or are the most important to amateur use, while setting the others
as fixed. These patterns are created from equations straight out of a
text book so you can track how each variable is introduced into the
theory. I need to tune my dynamic-circular queue for steady state
performance. The display loop needs to get fed enough frames, quickly
enough, or have a governor added to it.
Until next week have fun and get on the air more, the bands are healthy,
Kevin. KD5ONS
-
del dot E = rho / e0
del dot B = 0
del cross E = -dB/dt
del cross B = mu0 ( J + e0 dE/dt )
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