Recent content by KL7AJ

I have a stash of some 30 slide rules. Kids miss out on a lot of insight by not learning slide rule. :)

I love this. Simple, definitive, unambiguous, conclusive...and nothing more than a slide rule. :)

p.s. Assuming free space. You can play around with a great freeware program called 4NEC2, which makes it really easy to model any antenna over any kind of ground (or none) Eric

Is that a quarter wave per leg or total? A 1/2 wave vee has a pattern nearly identical to a dipole. On the third harmonic, you'll have additional major lobes.

I just happen to be in the process of writing a book for the ARRL dedicated specifically to radio propagation, especially ionospheric. But, you've had some good answers here, as ionospheric refraction is a very MACRO phenomenon. The ionosphere, as a whole has a very large "radar cross-section"...

The symbol for MHO (conductance, old style)

Binocular microscope and micropositioning table. Actually you CAN do surface mount soldering without these, but is sure makes it a lot more fun. :)

My latest science project has required that I invest in some surface mount soldering equipment. I figured I was going to be old, blind, and dead before I had to do this stuff. Turns out I'm a lot better at this than most electronics whippersnappers. :)

Anyone who takes Multivariable Calculus for "fun" is a very sick individual. :)

My bad...they should be DIVIDED by the cosines...since being out of alignment will make the measured readings smaller.

Can't add much to this discussion except to confirm that there is "other". :)

Nothing wrong with dinosaur technology at all, Mr. Flintstone! But I you need a VTVM, not a Simpson!

Yes

You should be able to multiply each of your readings by the cosines of the known error angles.

You're in good company. Einstein had trouble understanding it too! Well, actually, he understood it, but he didn't like what he understood :)